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Re: [Xen-devel] Xen-unstable-staging: Xen BUG at iommu_map.c:455



On Sat, Apr 11, 2015 at 10:35:13PM +0100, Andrew Cooper wrote:
> On 11/04/2015 22:05, Sander Eikelenboom wrote:
> > Saturday, April 11, 2015, 10:22:16 PM, you wrote:
> >
> >> On 11/04/2015 20:33, Sander Eikelenboom wrote:
> >>> Saturday, April 11, 2015, 8:25:52 PM, you wrote:
> >>>
> >>>> On 11/04/15 18:42, Sander Eikelenboom wrote:
> >>>>> Saturday, April 11, 2015, 7:35:57 PM, you wrote:
> >>>>>
> >>>>>> On 11/04/15 18:25, Sander Eikelenboom wrote:
> >>>>>>> Saturday, April 11, 2015, 6:38:17 PM, you wrote:
> >>>>>>>
> >>>>>>>> On 11/04/15 17:32, Andrew Cooper wrote:
> >>>>>>>>> On 11/04/15 17:21, Sander Eikelenboom wrote:
> >>>>>>>>>> Saturday, April 11, 2015, 4:21:56 PM, you wrote:
> >>>>>>>>>>
> >>>>>>>>>>> On 11/04/15 15:11, Sander Eikelenboom wrote:
> >>>>>>>>>>>> Friday, April 10, 2015, 8:55:27 PM, you wrote:
> >>>>>>>>>>>>
> >>>>>>>>>>>>> On 10/04/15 11:24, Sander Eikelenboom wrote:
> >>>>>>>>>>>>>> Hi Andrew,
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> Finally got some time to figure this out .. and i have 
> >>>>>>>>>>>>>> narrowed it down to:
> >>>>>>>>>>>>>> git://xenbits.xen.org/staging/qemu-upstream-unstable.git
> >>>>>>>>>>>>>> commit 7665d6ba98e20fb05c420de947c1750fd47e5c07 "Xen: Use the 
> >>>>>>>>>>>>>> ioreq-server API when available"
> >>>>>>>>>>>>>> A straight revert of this commit prevents the issue from 
> >>>>>>>>>>>>>> happening.
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> The reason i had a hard time figuring this out was:
> >>>>>>>>>>>>>> - I wasn't aware of this earlier, since git pulling the main 
> >>>>>>>>>>>>>> xen tree, doesn't 
> >>>>>>>>>>>>>>   auto update the qemu-* trees.
> >>>>>>>>>>>>> This has caught me out so many times.  It is very non-obvious 
> >>>>>>>>>>>>> behaviour.
> >>>>>>>>>>>>>> - So i happen to get this when i cloned a fresh tree to try to 
> >>>>>>>>>>>>>> figure out the 
> >>>>>>>>>>>>>>   other issue i was seeing.
> >>>>>>>>>>>>>> - After that checking out previous versions of the main xen 
> >>>>>>>>>>>>>> tree didn't resolve 
> >>>>>>>>>>>>>>   this new issue, because the qemu tree doesn't get auto 
> >>>>>>>>>>>>>> updated and is set 
> >>>>>>>>>>>>>>   "master".
> >>>>>>>>>>>>>> - Cloning a xen-stable-4.5.0 made it go away .. because that 
> >>>>>>>>>>>>>> has a specific 
> >>>>>>>>>>>>>>   git://xenbits.xen.org/staging/qemu-upstream-unstable.git tag 
> >>>>>>>>>>>>>> which is not 
> >>>>>>>>>>>>>>   master.
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> *sigh* 
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> This is tested with xen main tree at last commit 
> >>>>>>>>>>>>>> 3a28f760508fb35c430edac17a9efde5aff6d1d5
> >>>>>>>>>>>>>> (normal xen-unstable, not the staging branch)
> >>>>>>>>>>>>>>
> >>>>>>>>>>>>>> Ok so i have added some extra debug info (see attached diff) 
> >>>>>>>>>>>>>> and this is the 
> >>>>>>>>>>>>>> output when it crashes due to something the commit above 
> >>>>>>>>>>>>>> triggered, the 
> >>>>>>>>>>>>>> level is out of bounds and the pfn looks fishy too.
> >>>>>>>>>>>>>> Complete serial log from both bad and good (specific commit 
> >>>>>>>>>>>>>> reverted) are 
> >>>>>>>>>>>>>> attached.
> >>>>>>>>>>>>> Just to confirm, you are positively identifying a qemu 
> >>>>>>>>>>>>> changeset as
> >>>>>>>>>>>>> causing this crash?
> >>>>>>>>>>>>> If so, the qemu change has discovered a pre-existing issue in 
> >>>>>>>>>>>>> the
> >>>>>>>>>>>>> toolstack pci-passthrough interface.  Whatever qemu is or isn't 
> >>>>>>>>>>>>> doing,
> >>>>>>>>>>>>> it should not be able to cause a crash like this.
> >>>>>>>>>>>>> With this in mind, I need to brush up on my AMD-Vi details.
> >>>>>>>>>>>>> In the meantime, can you run with the following patch to 
> >>>>>>>>>>>>> identify what
> >>>>>>>>>>>>> is going on, domctl wise?  I assume it is the assign_device 
> >>>>>>>>>>>>> which is
> >>>>>>>>>>>>> failing, but it will be nice to observe the differences between 
> >>>>>>>>>>>>> the
> >>>>>>>>>>>>> working and failing case, which might offer a hint.
> >>>>>>>>>>>> Hrrm with your patch i end up with a fatal page fault in 
> >>>>>>>>>>>> iommu_do_pci_domctl:
> >>>>>>>>>>>>
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.833] ----[ Xen-4.6-unstable  x86_64  
> >>>>>>>>>>>> debug=y  Tainted:    C ]----
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.857] CPU:    5
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.868] RIP:    
> >>>>>>>>>>>> e008:[<ffff82d08014c52c>] iommu_do_pci_domctl+0x2dc/0x740
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.894] RFLAGS: 0000000000010256   
> >>>>>>>>>>>> CONTEXT: hypervisor
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.915] rax: 0000000000000008   rbx: 
> >>>>>>>>>>>> 0000000000000800   rcx: ffffffffffebe5ed
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.942] rdx: 0000000000000800   rsi: 
> >>>>>>>>>>>> 0000000000000000   rdi: ffff830256ef7e38
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.968] rbp: ffff830256ef7c98   rsp: 
> >>>>>>>>>>>> ffff830256ef7c08   r8:  00000000deadbeef
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:31.995] r9:  00000000deadbeef   r10: 
> >>>>>>>>>>>> ffff82d08024e500   r11: 0000000000000282
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.022] r12: 0000000000000000   r13: 
> >>>>>>>>>>>> 0000000000000008   r14: 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.049] r15: 0000000000000000   cr0: 
> >>>>>>>>>>>> 0000000080050033   cr4: 00000000000006f0
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.076] cr3: 00000002336a6000   cr2: 
> >>>>>>>>>>>> 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.096] ds: 0000   es: 0000   fs: 0000   
> >>>>>>>>>>>> gs: 0000   ss: e010   cs: e008
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.121] Xen stack trace from 
> >>>>>>>>>>>> rsp=ffff830256ef7c08:
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.141]    ffff830256ef7c78 
> >>>>>>>>>>>> ffff82d08012c178 ffff830256ef7c28 ffff830256ef7c28
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.168]    0000000000000010 
> >>>>>>>>>>>> 0000000000000000 0000000000000000 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.195]    00000000000006f0 
> >>>>>>>>>>>> 00007fe300000000 ffff830256eb7790 ffff83025cc6d300
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.222]    ffff82d080330c60 
> >>>>>>>>>>>> 00007fe396bab004 0000000000000000 00007fe396bab004
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.249]    0000000000000000 
> >>>>>>>>>>>> 0000000000000005 ffff830256ef7ca8 ffff82d08014900b
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.276]    ffff830256ef7d98 
> >>>>>>>>>>>> ffff82d080161f2d 0000000000000010 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.303]    0000000000000000 
> >>>>>>>>>>>> ffff830256ef7ce8 ffff82d08018b655 ffff830256ef7d48
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.330]    ffff830256ef7cf8 
> >>>>>>>>>>>> ffff82d08018b66a ffff830256ef7d38 ffff82d08012925e
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.357]    ffff830256efc068 
> >>>>>>>>>>>> 0000000800000001 800000022e12c167 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.384]    0000000000000002 
> >>>>>>>>>>>> ffff830256ef7e38 0000000800000000 800000022e12c167
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.411]    0000000000000003 
> >>>>>>>>>>>> ffff830256ef7db8 0000000000000000 00007fe396780eb0
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.439]    0000000000000202 
> >>>>>>>>>>>> ffffffffffffffff 0000000000000000 00007fe396bab004
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.466]    0000000000000000 
> >>>>>>>>>>>> 0000000000000005 ffff830256ef7ef8 ffff82d08010497f
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.493]    0000000000000001 
> >>>>>>>>>>>> 0000000000100001 800000022e12c167 ffff88001f7ecc00
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.520]    00007fe396780eb0 
> >>>>>>>>>>>> ffff88001c849508 0000000e00000007 ffffffff8105594a
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.547]    000000000000e033 
> >>>>>>>>>>>> 0000000000000202 ffff88001ece3d40 000000000000e02b
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.574]    ffff830256ef7e28 
> >>>>>>>>>>>> ffff82d080194933 000000000000beef ffffffff81bd6c85
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.601]    ffff830256ef7f08 
> >>>>>>>>>>>> ffff82d080193edd 0000000b0000002d 0000000000000001
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.628]    0000000100000800 
> >>>>>>>>>>>> 00007fe3962abbd0 ffff000a81050001 00007fe39656ce6e
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.655]    00007ffdf2a654f0 
> >>>>>>>>>>>> 00007fe39656d0c9 00007fe39656ce6e 00007fe3969a9a55
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.682] Xen call trace:
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.695]    [<ffff82d08014c52c>] 
> >>>>>>>>>>>> iommu_do_pci_domctl+0x2dc/0x740
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.718]    [<ffff82d08014900b>] 
> >>>>>>>>>>>> iommu_do_domctl+0x17/0x1a
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.739]    [<ffff82d080161f2d>] 
> >>>>>>>>>>>> arch_do_domctl+0x2469/0x26e1
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.762]    [<ffff82d08010497f>] 
> >>>>>>>>>>>> do_domctl+0x1a1f/0x1d60
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.783]    [<ffff82d080234c6b>] 
> >>>>>>>>>>>> syscall_enter+0xeb/0x145
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.804] 
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.813] Pagetable walk from 
> >>>>>>>>>>>> 0000000000000000:
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.831]  L4[0x000] = 0000000234075067 
> >>>>>>>>>>>> 000000000001f2a8
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.852]  L3[0x000] = 0000000229ad4067 
> >>>>>>>>>>>> 0000000000014c49
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.873]  L2[0x000] = 0000000000000000 
> >>>>>>>>>>>> ffffffffffffffff 
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.894] 
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.903] 
> >>>>>>>>>>>> ****************************************
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.922] Panic on CPU 5:
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.935] FATAL PAGE FAULT
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.948] [error_code=0000]
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.961] Faulting linear address: 
> >>>>>>>>>>>> 0000000000000000
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:32.981] 
> >>>>>>>>>>>> ****************************************
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:33.000] 
> >>>>>>>>>>>> (XEN) [2015-04-11 14:03:33.009] Reboot in five seconds...
> >>>>>>>>>>>>
> >>>>>>>>>>>> The RIP resolves to the prink added by your patch in:
> >>>>>>>>>>>>
> >>>>>>>>>>>>     case XEN_DOMCTL_test_assign_device:
> >>>>>>>>>>>>         ret = xsm_test_assign_device(XSM_HOOK, 
> >>>>>>>>>>>> domctl->u.assign_device.machine_sbdf);
> >>>>>>>>>>>>         if ( ret )
> >>>>>>>>>>>>             break;
> >>>>>>>>>>>>
> >>>>>>>>>>>>         seg = domctl->u.assign_device.machine_sbdf >> 16;
> >>>>>>>>>>>>         bus = (domctl->u.assign_device.machine_sbdf >> 8) & 0xff;
> >>>>>>>>>>>>         devfn = domctl->u.assign_device.machine_sbdf & 0xff;
> >>>>>>>>>>>>
> >>>>>>>>>>>>         printk("*** %pv->d%d: 
> >>>>>>>>>>>> test_assign_device({%04x:%02x:%02x.%u})\n",
> >>>>>>>>>>>>                current, d->domain_id,
> >>>>>>>>>>>>                seg, bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
> >>>>>>>>>>>>
> >>>>>>>>>>>>         if ( device_assigned(seg, bus, devfn) )
> >>>>>>>>>>>>         {
> >>>>>>>>>>>>             printk(XENLOG_G_INFO
> >>>>>>>>>>>>                    "%04x:%02x:%02x.%u already assigned, or 
> >>>>>>>>>>>> non-existent\n",
> >>>>>>>>>>>>                    seg, bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
> >>>>>>>>>>>>             ret = -EINVAL;
> >>>>>>>>>>>>         }
> >>>>>>>>>>>>         break;
> >>>>>>>>>>> hmm - 'd' is NULL.  This ought to work better.
> >>>>>>>>>>> diff --git a/xen/drivers/passthrough/pci.c 
> >>>>>>>>>>> b/xen/drivers/passthrough/pci.c
> >>>>>>>>>>> index 9f3413c..85ff1fc 100644
> >>>>>>>>>>> --- a/xen/drivers/passthrough/pci.c
> >>>>>>>>>>> +++ b/xen/drivers/passthrough/pci.c
> >>>>>>>>>>> @@ -1532,6 +1532,11 @@ int iommu_do_pci_domctl(
> >>>>>>>>>>>          max_sdevs = domctl->u.get_device_group.max_sdevs;
> >>>>>>>>>>>          sdevs = domctl->u.get_device_group.sdev_array;
> >>>>>>>>>>>  
> >>>>>>>>>>> +        printk("*** %pv->d%d: 
> >>>>>>>>>>> get_device_group({%04x:%02x:%02x.%u, %u})\n",
> >>>>>>>>>>> +               current, d->domain_id,
> >>>>>>>>>>> +               seg, bus, PCI_SLOT(devfn), PCI_FUNC(devfn),
> >>>>>>>>>>> +               max_sdevs);
> >>>>>>>>>>> +
> >>>>>>>>>>>          ret = iommu_get_device_group(d, seg, bus, devfn, sdevs, 
> >>>>>>>>>>> max_sdevs);
> >>>>>>>>>>>          if ( ret < 0 )
> >>>>>>>>>>>          {
> >>>>>>>>>>> @@ -1558,6 +1563,9 @@ int iommu_do_pci_domctl(
> >>>>>>>>>>>          bus = (domctl->u.assign_device.machine_sbdf >> 8) & 0xff;
> >>>>>>>>>>>          devfn = domctl->u.assign_device.machine_sbdf & 0xff;
> >>>>>>>>>>>  
> >>>>>>>>>>> +        printk("*** %pv: 
> >>>>>>>>>>> test_assign_device({%04x:%02x:%02x.%u})\n",
> >>>>>>>>>>> +               current, seg, bus, PCI_SLOT(devfn), 
> >>>>>>>>>>> PCI_FUNC(devfn));
> >>>>>>>>>>> +
> >>>>>>>>>>>          if ( device_assigned(seg, bus, devfn) )
> >>>>>>>>>>>          {
> >>>>>>>>>>>              printk(XENLOG_G_INFO
> >>>>>>>>>>> @@ -1582,6 +1590,10 @@ int iommu_do_pci_domctl(
> >>>>>>>>>>>          bus = (domctl->u.assign_device.machine_sbdf >> 8) & 0xff;
> >>>>>>>>>>>          devfn = domctl->u.assign_device.machine_sbdf & 0xff;
> >>>>>>>>>>>  
> >>>>>>>>>>> +        printk("*** %pv->d%d: 
> >>>>>>>>>>> assign_device({%04x:%02x:%02x.%u})\n",
> >>>>>>>>>>> +               current, d->domain_id,
> >>>>>>>>>>> +               seg, bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
> >>>>>>>>>>> +
> >>>>>>>>>>>          ret = device_assigned(seg, bus, devfn) ?:
> >>>>>>>>>>>                assign_device(d, seg, bus, devfn);
> >>>>>>>>>>>          if ( ret == -ERESTART )
> >>>>>>>>>>> @@ -1604,6 +1616,10 @@ int iommu_do_pci_domctl(
> >>>>>>>>>>>          bus = (domctl->u.assign_device.machine_sbdf >> 8) & 0xff;
> >>>>>>>>>>>          devfn = domctl->u.assign_device.machine_sbdf & 0xff;
> >>>>>>>>>>>  
> >>>>>>>>>>> +        printk("*** %pv->d%d: 
> >>>>>>>>>>> deassign_device({%04x:%02x:%02x.%u})\n",
> >>>>>>>>>>> +               current, d->domain_id,
> >>>>>>>>>>> +               seg, bus, PCI_SLOT(devfn), PCI_FUNC(devfn));
> >>>>>>>>>>> +
> >>>>>>>>>>>          spin_lock(&pcidevs_lock);
> >>>>>>>>>>>          ret = deassign_device(d, seg, bus, devfn);
> >>>>>>>>>>>          spin_unlock(&pcidevs_lock);
> >>>>>>>>>> Hi Andrew,
> >>>>>>>>>>
> >>>>>>>>>> Attached are the serial logs good (with revert) and bad (without):
> >>>>>>>>>>
> >>>>>>>>>> Some things that seems strange to me:
> >>>>>>>>>> - The numerous calls to get the device 08:00.0 assigned ... for 
> >>>>>>>>>> 0a:00.0 there 
> >>>>>>>>>>   was only one call to both test assign and assign.
> >>>>>>>>>> - However these numerous calls are there in both the good and the 
> >>>>>>>>>> bad case,
> >>>>>>>>>>   so perhaps it's strange and wrong .. but not the cause ..
> >>>>>>>>>> - I had a hunch it could be due to the 08:00.0 using MSI-X, but 
> >>>>>>>>>> when only 
> >>>>>>>>>>   passing through 0a:00.0, i get the same numerous calls but now 
> >>>>>>>>>> for the 
> >>>>>>>>>>   0a:00.0 which uses IntX, so I think that is more related to 
> >>>>>>>>>> being the *first*
> >>>>>>>>>>   device to be passed through to a guest.
> >>>>>>>>> I have also observed this behaviour, but not had time to 
> >>>>>>>>> investigate. 
> >>>>>>>>> It doesn't appear problematic in the longrun but it probably a 
> >>>>>>>>> toolstack
> >>>>>>>>> issue which wants fixing (if only in the name of efficiency).
> >>>>>>>> And just after I sent this email, I have realised why.
> >>>>>>>> The first assign device will have to build IO pagetables, which is a
> >>>>>>>> long operation and subject to hypercall continuations.  The second
> >>>>>>>> device will reused the same pagetables, so is quick to complete.
> >>>>>>> So .. is the ioreq patch from Paul involved in providing something 
> >>>>>>> used in building 
> >>>>>>> the pagetables .. and could it have say some off by one resulting in 
> >>>>>>> the 
> >>>>>>> 0xffffffffffff .. which could lead to the pagetable building going 
> >>>>>>> beserk, 
> >>>>>>> requiring a paging_mode far greater than normally would be required 
> >>>>>>> .. which 
> >>>>>>> get's set .. since that isn't checked properly .. leading to things 
> >>>>>>> breaking 
> >>>>>>> a bit further when it does get checked ? 
> >>>>>> A -1 is slipping in somewhere and ending up in the gfn field.
> >>>>>> The result is that update_paging_mode() attempts to construct
> >>>>>> iopagetables to cover a 76bit address space, which is how level ends up
> >>>>>> at 8.  (Note that a level of 7 is reserved, and a level of anything
> >>>>>> greater than 4 is implausible on your system.)
> >>>>>> I think the crash is collateral damage following on from
> >>>>>> update_paging_mode() not properly sanitising its input, but that there
> >>>>>> is still some other issue causing -1 to be passed in the first place.
> >>>>>> I am still trying to locate where a -1 might plausibly be coming from.
> >>>>> I have just added some extra debug code to store the values from the 
> >>>>> start 
> >>>>> of update_paging_mode() .. so i can print them at the end if the 
> >>>>> paging_mode 
> >>>>> gets out of band and do a dump_stack() as well. Hopefully is will 
> >>>>> confirm this.
> >>>> Right - arch_iommu_populate_page_table() is falling over a page
> >>>> allocated to the domain which doesn't have a valid gfn.
> >>>> The ioreq server allocates itself some guest pages and then shoots them
> >>>> out as part of setting the server up.  (This is a kudge to work around
> >>>> the fact that Xen doesn't have an interface for device models etc to
> >>>> allocate memory on behalf of the domain which will strictly never find
> >>>> its way into the guest physmap.)
> >>>> Can you try this patch and see whether some of the numbers printed out
> >>>> start matching up?
> >>>> diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
> >>>> index bfde380..d1adfa7 100644
> >>>> --- a/xen/arch/x86/hvm/hvm.c
> >>>> +++ b/xen/arch/x86/hvm/hvm.c
> >>>> @@ -534,6 +534,10 @@ static int hvm_map_ioreq_page(
> >>>>  static void hvm_remove_ioreq_gmfn(
> >>>>      struct domain *d, struct hvm_ioreq_page *iorp)
> >>>>  {
> >>>> +    printk("*** %s() d%d, page %p, mfn %lx, gfn %lx, va %p\n",
> >>>> +           __func__, d->domain_id,
> >>> +           iorp->>page, page_to_mfn(iorp->page), iorp->gmfn, iorp->va);
> >>>> +
> >>>>      guest_physmap_remove_page(d, iorp->gmfn,
> >>>>                                page_to_mfn(iorp->page), 0);
> >>>>      clear_page(iorp->va);
> >>>> diff --git a/xen/drivers/passthrough/x86/iommu.c
> >>>> b/xen/drivers/passthrough/x86/iommu.c
> >>>> index 9eb8d33..048a1a9 100644
> >>>> --- a/xen/drivers/passthrough/x86/iommu.c
> >>>> +++ b/xen/drivers/passthrough/x86/iommu.c
> >>>> @@ -59,7 +59,16 @@ int arch_iommu_populate_page_table(struct domain *d)
> >>>>          if ( has_hvm_container_domain(d) ||
> >>>>              (page->u.inuse.type_info & PGT_type_mask) ==
> >>>> PGT_writable_page )
> >>>>          {
> >>>> -            BUG_ON(SHARED_M2P(mfn_to_gmfn(d, page_to_mfn(page))));
> >>>> +            unsigned long mfn = page_to_mfn(page);
> >>>> +            unsigned long gfn = mfn_to_gmfn(d, mfn);
> >>>> +
> >>>> +            BUG_ON(SHARED_M2P(gfn));
> >>>> +
> >>>> +            if ( gfn == INVALID_MFN )
> >>>> +            {
> >>>> +                printk("*** %s() d%d, page %p, mfn %lx, gfn %lx - about
> >>>> to break\n",
> >>>> +                       __func__, d->domain_id, page, mfn, gfn);
> >>>> +            }
> >>>>              rc = hd->platform_ops->map_page(
> >>>>                  d, mfn_to_gmfn(d, page_to_mfn(page)), page_to_mfn(page),
> >>>>                  IOMMUF_readable|IOMMUF_writable);
> >>> Ok .. so here we go:
> >>>
> >>> (XEN) [2015-04-11 19:24:59.418] *** hvm_remove_ioreq_gmfn() d1, page 
> >>> ffff82e0049f7700, mfn 24fbb8, gfn feff0, va ffff82c00082b000
> >>> (XEN) [2015-04-11 19:24:59.452] *** hvm_remove_ioreq_gmfn() d1, page 
> >>> ffff82e0049f76e0, mfn 24fbb7, gfn feff1, va ffff82c00082d000
> >>> (XEN) [2015-04-11 19:25:00.158] *** d0v5: 
> >>> test_assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:02.221] io.c:429: d1: bind: m_gsi=47 g_gsi=36 
> >>> dev=00.00.5 intx=0
> >>> (XEN) [2015-04-11 19:25:02.248] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:02.268] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:02.290] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:02.310] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:02.333] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:02.353] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:02.375] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:02.395] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> <BIG SNIP>
> >>> (XEN) [2015-04-11 19:25:45.444] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:45.464] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:45.486] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:45.506] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:45.529] *** d0v1->d1: 
> >>> assign_device({0000:0a:00.0})
> >>> (XEN) [2015-04-11 19:25:45.549] ?!?!? d1: pci_dev:0000:0a:00.0 
> >>> hd->arch.paging_mode:2
> >>> (XEN) [2015-04-11 19:25:45.571] *** arch_iommu_populate_page_table() d1, 
> >>> page ffff82e0049f7700, mfn 24fbb8, gfn ffffffffffffffff - about to break
> >>> (XEN) [2015-04-11 19:25:45.610] AMD-Vi: ?!?!? amd_iommu_map_page level 
> >>> before:3 gfn:0xffffffffffffffff mfn:0x24fbb8 flags:3
> >>> (XEN) [2015-04-11 19:25:45.642] AMD-Vi: ?!?!? update_paging_mode level 
> >>> before:3 gfn:0xffffffffffffffff 
> >>> (XEN) [2015-04-11 19:25:45.669] AMD-Vi: ?!?!? update_paging_mode end: 
> >>> paging_mode:6 offset:31 root: old_root_mfn:0x11d55b new_root_mfn:0x11d55a 
> >>> gfn:0xffffffffffffffff req_id:0 PTE_PER_TABLE_SIZE:512 
> >>> (XEN) [2015-04-11 19:25:45.722] AMD-Vi: ?!?!? update_paging_mode end: 
> >>> values at start: paging_mode:3 offset:-1 gfn:0xffffffffffffffff 
> >>> (XEN) [2015-04-11 19:25:45.757] AMD-Vi: ?!?!? amd_iommu_map_page level 
> >>> after update paging mode:6 gfn:0xffffffffffffffff mfn:0x24fbb8 flags:3
> >>> (XEN) [2015-04-11 19:25:45.794] AMD-Vi: ?!?!? amd_iommu_map_page level 
> >>> end:6  gfn:0xffffffffffffffff mfn:0x24fbb8 flags:3
> >>> (XEN) [2015-04-11 19:25:45.826] *** arch_iommu_populate_page_table() d1, 
> >>> page ffff82e0049f76e0, mfn 24fbb7, gfn ffffffffffffffff - about to break
> >>> (XEN) [2015-04-11 19:25:45.864] AMD-Vi: ?!?!? amd_iommu_map_page level 
> >>> before:6 gfn:0xffffffffffffffff mfn:0x24fbb7 flags:3
> >>> (XEN) [2015-04-11 19:25:45.897] AMD-Vi: ?!?!? update_paging_mode level 
> >>> before:6 gfn:0xffffffffffffffff 
> >>> (XEN) [2015-04-11 19:25:45.924] AMD-Vi: ?!?!? update_paging_mode end: 
> >>> paging_mode:8 offset:1 root: old_root_mfn:0x11d554 new_root_mfn:0x11d553 
> >>> gfn:0xffffffffffffffff req_id:0 PTE_PER_TABLE_SIZE:512 
> >>> (XEN) [2015-04-11 19:25:45.976] AMD-Vi: ?!?!? update_paging_mode end: 
> >>> values at start: paging_mode:6 offset:524287 gfn:0xffffffffffffffff 
> >>> (XEN) [2015-04-11 19:25:46.013] AMD-Vi: ?!?!? amd_iommu_map_page level 
> >>> after update paging mode:8 gfn:0xffffffffffffffff mfn:0x24fbb7 flags:3
> >>> (XEN) [2015-04-11 19:25:46.050] AMD-Vi: ?!?!? iommu_pde_from_gfn: domid:1 
> >>> table:1 level:8 pfn:0xffffffffffffffff
> >>> (XEN) [2015-04-11 19:25:46.079] Xen BUG at iommu_map.c:459
> >>> (XEN) [2015-04-11 19:25:46.095] ----[ Xen-4.6-unstable  x86_64  debug=y  
> >>> Tainted:    C ]----
> >>> (XEN) [2015-04-11 19:25:46.119] CPU:    2
> >>> (XEN) [2015-04-11 19:25:46.131] RIP:    e008:[<ffff82d080155d03>] 
> >>> iommu_pde_from_gfn+0x82/0x47a
> >>> (XEN) [2015-04-11 19:25:46.156] RFLAGS: 0000000000010202   CONTEXT: 
> >>> hypervisor
> >>> (XEN) [2015-04-11 19:25:46.177] rax: 0000000000000000   rbx: 
> >>> 0000000000000008   rcx: 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.203] rdx: ffff830256f20000   rsi: 
> >>> 000000000000000a   rdi: ffff82d0802986c0
> >>> (XEN) [2015-04-11 19:25:46.230] rbp: ffff830256f27ad8   rsp: 
> >>> ffff830256f27a78   r8:  ffff830256f30000
> >>> (XEN) [2015-04-11 19:25:46.257] r9:  0000000000000002   r10: 
> >>> 0000000000000032   r11: 0000000000000002
> >>> (XEN) [2015-04-11 19:25:46.284] r12: ffff82e0023aaa60   r13: 
> >>> 000000000024fb00   r14: 00000000000000e9
> >>> (XEN) [2015-04-11 19:25:46.311] r15: 00007d2000000000   cr0: 
> >>> 0000000080050033   cr4: 00000000000006f0
> >>> (XEN) [2015-04-11 19:25:46.337] cr3: 000000025f176000   cr2: 
> >>> ffff8000007f6800
> >>> (XEN) [2015-04-11 19:25:46.358] ds: 0000   es: 0000   fs: 0000   gs: 0000 
> >>>   ss: e010   cs: e008
> >>> (XEN) [2015-04-11 19:25:46.383] Xen stack trace from rsp=ffff830256f27a78:
> >>> (XEN) [2015-04-11 19:25:46.403]    ffff83025f7bd000 ffff830256f27b30 
> >>> ffffffffffffffff ffff830200000030
> >>> (XEN) [2015-04-11 19:25:46.430]    ffff830256f27ae8 ffff830256f27aa8 
> >>> 0000000000000000 ffff83025f7bd000
> >>> (XEN) [2015-04-11 19:25:46.457]    ffff82e0049f76e0 000000000024fbb7 
> >>> 00000000000000e9 00007d2000000000
> >>> (XEN) [2015-04-11 19:25:46.484]    ffff830256f27b98 ffff82d0801562a9 
> >>> 0000000000000206 ffff830256f27b08
> >>> (XEN) [2015-04-11 19:25:46.511]    000000000024fbb7 0000000000000003 
> >>> ffff83025f7bd938 ffffffffffffffff
> >>> (XEN) [2015-04-11 19:25:46.538]    ffff83025f7bd000 ffff83025f7bd000 
> >>> 000000000024fbb7 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.565]    0000000000000000 0000000000000000 
> >>> 0000000000000000 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.592]    0000000000000000 0000000000000000 
> >>> ffff83025f7bd938 ffff83025f7bd000
> >>> (XEN) [2015-04-11 19:25:46.619]    ffff82e0049f76e0 000000000024fbb7 
> >>> 00000000000000e9 00007d2000000000
> >>> (XEN) [2015-04-11 19:25:46.646]    ffff830256f27bf8 ffff82d08015a7f8 
> >>> 0000000000000000 ffff83025f7bd020
> >>> (XEN) [2015-04-11 19:25:46.673]    000000000024fbb7 ffff830256f20000 
> >>> ffff830256f27bf8 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.700]    000000000000000a 00007f017c8d1004 
> >>> 0000000000000000 ffff83025f7bd000
> >>> (XEN) [2015-04-11 19:25:46.727]    ffff830256f27c98 ffff82d08014c6e1 
> >>> ffff830200000002 ffff82d08012c178
> >>> (XEN) [2015-04-11 19:25:46.754]    0000000000000000 ffff830256f27c28 
> >>> 0000000000000001 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.781]    0000000000000000 0000000000000000 
> >>> 00007f017c8d1004 0000000000000000
> >>> (XEN) [2015-04-11 19:25:46.808]    ffff82d080331034 ffff830256f20000 
> >>> 000000000025f176 00007f017c8d1004
> >>> (XEN) [2015-04-11 19:25:46.835]    ffff83025f7bd000 00007f017c8d1004 
> >>> ffff83025f7bd000 0000000000000005
> >>> (XEN) [2015-04-11 19:25:46.863]    ffff830256f27ca8 ffff82d08014900b 
> >>> ffff830256f27d98 ffff82d080161f2d
> >>> (XEN) [2015-04-11 19:25:46.890]    000000000023468c 0000000000000002 
> >>> 0000000000000005 0000000000000001
> >>> (XEN) [2015-04-11 19:25:46.917]    ffff82d080331bb8 0000000000000001 
> >>> ffff830256f27de8 ffff82d080120c10
> >>> (XEN) [2015-04-11 19:25:46.944] Xen call trace:
> >>> (XEN) [2015-04-11 19:25:46.956]    [<ffff82d080155d03>] 
> >>> iommu_pde_from_gfn+0x82/0x47a
> >>> (XEN) [2015-04-11 19:25:46.979]    [<ffff82d0801562a9>] 
> >>> amd_iommu_map_page+0x1ae/0x5ec
> >>> (XEN) [2015-04-11 19:25:47.002]    [<ffff82d08015a7f8>] 
> >>> arch_iommu_populate_page_table+0x164/0x4c3
> >>> (XEN) [2015-04-11 19:25:47.028]    [<ffff82d08014c6e1>] 
> >>> iommu_do_pci_domctl+0x491/0x740
> >>> (XEN) [2015-04-11 19:25:47.051]    [<ffff82d08014900b>] 
> >>> iommu_do_domctl+0x17/0x1a
> >>> (XEN) [2015-04-11 19:25:47.073]    [<ffff82d080161f2d>] 
> >>> arch_do_domctl+0x2469/0x26e1
> >>> (XEN) [2015-04-11 19:25:47.095]    [<ffff82d08010497f>] 
> >>> do_domctl+0x1a1f/0x1d60
> >>> (XEN) [2015-04-11 19:25:47.116]    [<ffff82d080234c6b>] 
> >>> syscall_enter+0xeb/0x145
> >>> (XEN) [2015-04-11 19:25:47.137] 
> >>> (XEN) [2015-04-11 19:25:47.146] 
> >>> (XEN) [2015-04-11 19:25:47.155] ****************************************
> >>> (XEN) [2015-04-11 19:25:47.174] Panic on CPU 2:
> >>> (XEN) [2015-04-11 19:25:47.187] Xen BUG at iommu_map.c:459
> >>> (XEN) [2015-04-11 19:25:47.203] ****************************************
> >>> (XEN) [2015-04-11 19:25:47.222] 
> >>> (XEN) [2015-04-11 19:25:47.231] Reboot in five seconds...
> >>>  
> >>>
> >> Right - does this fix the issue for you?
> > Affirmative :)
> > It survives and the device seems to work properly as well,
> > will do some more tests tomorrow.
> >
> > Thanks for tracking it down !
> 
> I am not certain that it is the correct way to fix the issue, nor that
> the ioreq server code is the only way to trigger it.  There are several
> ways to shoot a gfn mapping from the guests physmap.
> 
> At least we now understand why it happens.  I will defer to others CC'd
> on this thread for their opinions in the matter.

While I was trying to reproduce 
mid.gmane.org/976091924.20150415170808@xxxxxxxxxxxxxx
on my AMD machine I reproduced this - stock Linux v4.0 and stock origin/staging
(df9f5676b3711c95127d44e871ad7ca38d6ed28a).

However only if I am using upstream QEMU. If using qemu-traditional
I don't see it.

Here is my serial log for records (since the line number changed).



PXELINUX 3.82 2009-06-09  Copyright (C) 1994-2009 H. Peter Anvin et al
Loading xen.gz... ok
Loading vmlinuz... ok
Loading initramfs.cpio.gz... ok
Loading microcode.bin... ok
 Xen 4.6-unstable
(XEN) Xen version 4.6-unstable (konrad@(none)) (gcc (GCC) 4.4.4 20100503 (Red 
Hat 4.4.4-2)) debug=y Wed Apr 1567
(XEN) Bootloader: unknown
(XEN) Command line: scrubber=ceiling com1=115200,8n1 dom0_mem=999M,max:1232M 
dom0_max_vcpus=3 cpufreq=performance,verbose iommu=verbose,no-intremap 
console=com1,vga loglvl=all guest_loglvl=all
(XEN) Video information:
(XEN)  VGA is text mode 80x25, font 8x16
(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN)  Found 1 MBR signatures
(XEN)  Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 0000000000096000 (usable)
(XEN)  0000000000096000 - 00000000000a0000 (reserved)
(XEN)  00000000000e6000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000d7e90000 (usable)
(XEN)  00000000d7e90000 - 00000000d7eb4000 (ACPI data)
(XEN)  00000000d7eb4000 - 00000000d7ee0000 (ACPI NVS)
(XEN)  00000000d7ee0000 - 00000000d8000000 (reserved)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000ffe00000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 00000003a8000000 (usable)
(XEN) ACPI: RSDP 000FA650, 0024 (r2 ACPIAM)
(XEN) ACPI: XSDT D7E90100, 006C (r1 SMCI            20131125 MSFT       97)
(XEN)        0 INTL 20051117)
(XEN) ACPI: FACS D7EB4000, 0040
(XEN) ACPI: APIC D7E90390, 0170 (r2 112513 APIC1100 20131125 MSFT       97)
(XEN) ACPI: MCFG D7E90500, 003C (r1 112513 OEMMCFG  20131125 MSFT       97)
(XEN) ACPI: OEMB D7EB4040, 00BC (r1 112513 OEMB1100 20131125 MSFT       97)
(XEN) ACPI: HPET D7E9A6C0, 0038 (r1 112513 OEMHPET  20131125 MSFT       97)
(XEN) ACPI: IVRS D7E9A700, 00A8 (r1  AMD     RD890S   202031 AMD         0)
(XEN) ACPI: SRAT D7E9A7B0, 01D0 (r2 AMD    AGESA           1 AMD         1)
(XEN) ACPI: SLIT D7E9A980, 0030 (r1 AMD    AGESA           1 AMD         1)
(XEN) ACPI: SSDT D7E9A9B0, 2914 (r1 A M I  POWERNOW        1 AMD         1)
(XEN) System RAM: 14334MB (14678168kB)
(XEN) SRAT: PXM 0 -> APIC 32 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 33 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 34 -> Node 0
(XEN) SRPXM 0 -> APIC 36 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 37 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 38 -> Node 0
(XEN) SRAT: PXM 0 -> APIC 39 -> Node 0
(XEN) SRAT: PXM 1 -> APIC 40 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 41 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 42 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 43 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 44 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 45 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 46 -> Node 1
(XEN) SRAT: PXM 1 -> APIC 47 -> Node 1
(XEN) SRAT: Node 0 PXM 0 0-a0000
(XEN) SRAT: Node 0 PXM 0 100000-d8000000
(XEN) SRAT: Node 0 PXM 0 100000000-228000000
(XEN) SRAT: Node 1 PXM 1 228000000-3a8000000
(XEN) NUMA: Allocated memnodemap from 3a0e48000 - 3a0e4c000
(XEN) NUMA: Using 8 for the hash shift.
(XEN) Domain heap initialised DMA width 31 bits
(XEN) found SMP MP-table at 000ff780
(XEN) DMI present.
(XEN) Using APIC driver default
(XEN) ACPI: PM-Timer IO Port: 0x808
(XEN) ACPI: SLEEP INFO: pm1x_cnt[1:804,1:0], pm1x_evt[1:800,1:0]
(XEN)(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x20] enabled)
(XEN) Processor #32 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x21] enabled)
(XEN) Processor #33 5:1 API version 16
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x23] enabled)
(XEN) Processor #35 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x24] enabled)
(XEN) Processor #36 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x06] lapic_id[0x25] enabled)
(XEN) Processor #37 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x07] lapic_id[0x26] enabled)
(XEN) Processor #38 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x08] lapic_id[0x27] enabled)
(XEN) Processor #39 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x09] lapic_id[0x28] enabled)
(XEN) Processor #40 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x29] enabled)
(XEN) Processor #41 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x2a] enabled)
(XEN) Processor #42 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x2b] enabled)
(XEN) Processor #43 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x2c] enabled)
(XEN) Processor #44 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x2d] enabled)
(XEN) Processor #45 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x2e] enabled)
(XEN) Processor #46 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x10] lapic_id[0x2f] enabled)
(XEN) Processor #47 5:1 APIC version 16
(XEN) ACPI: LAPIC (acpi_id[0x11] lapic_id[0x90] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x12] lapic_id[0x91] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x13] lapic_id[0x92] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x14] lapic_id[0x93] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x15] lapic_id[0x94] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x16] lapic_id[0x95] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x17] lapic_id[0x96] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x18] lapic_id[0x97] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x19] lapic_id[0x98] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x99] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x9a] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x9b] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x9c] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x9d] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x9e] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x20] lapic_id[0x9f] disabled)
(XEN) ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) Overriding APIC driver with bigsmp
(XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 0, version 33, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x01] address[0xfec20000] gsi_base[24])
(XEN) IOAPIC[1]: apic_id 1, version 33, address 0xfec20000, GSI 24-55
(XEN) ACPI: IOAPIC (id[0x02] address[0x00000000] gsi_base[56])
(XEN) WARNING: Bogus (zero) I/O APIC address found in MADT table, skipping!
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Phys.  Using 2 I/O APICs
(XEN) ACPI: HPET id: 0x8300 base: 0xfed00000
(XEN) ERST table was not found
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) SMP: Allowing 32 CPUs (16 hotplug CPUs)
(XEN) IRQ limits: 56 GSI, 3032 MSI/MSI-X
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2100.088 MHz processor.
(XEN) Initing memory sharing.
(XEN) xstate_init: using cntxt_size: 0x3c0 and states: 0x4000000000000007
(XEN) AMD Fam15h machine check reporting enabled
(XEN) alt table ffff82d0802d8e30 -> ffff82d0802da03c
(XEN) PCI: MCFG configuration 0: base e0000000 segment 0000 buses 00 - ff
(XEN) PCI: MCFG area at e0000000 reserved in E820
(XEN) PCI: Using MCFG for segment 0000 bus 00-ff
(XEN) AMD-Vi: Disabled HAP memory map sharing with IOMMU
(XEN) AMD-Vi: IOMMU 0 Enabled.
(XEN) I/O virtualisation enabled
(XEN)  - Dom0 mode: Relaxed
(XEN) Interrupt remapping disabled
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 128 KiB.
(XEN) HVM: ASIDs enabled.
(XEN) SVM: Supported advanced features:
(XEN)  - Nested Page Tables (NPT)
(XEN)  - Last Branch Record (LBR) Virtualisation
(XEN)  - Next-RIP Saved on #VMEXIT
(XEN)  - VMCB Clean Bits
(XEN)  - DecodeAssists
(XEN)  - Pause-Intercept Filter
(XEN)  - TSC Rate MSR
(XEN) HVM: SVM enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) HVM: PVH mode not supported on this platform
(XEN) Brought up 16 CPUs
(XEN) ACPI sleep modes: S3
(XEN) mcheck_poll: Machine check polling timer started.
(XEN) Dom0 has maximum 632 PIRQs
(XEN) Multrd candidates, picking module #1
(XEN) *** LOADING DOMAIN 0 ***
(XEN) elf_parse_binary: phdr: paddr=0x1000000 memsz=0xa5a000
(XEN) elf_parse_binary: phdr: paddr=0x1c00000 memsz=0xd3000
(XEN)arse_binary: memory: 0x1000000 -> 0x2031000
(XEN) elf_xen_parse_note: GUEST_OS = "linux"
(XEN) elf_xen_parse_note: GUEST_VERSION = "2.6"
(XEN) elf_xen_parse_note: XEN_VERSION = "xen-3.0"
(XEN) elf_xen_parse_note: VIRT_BASE = 0xffffffff80000000
(XEN) elf_xen_parse_note: ENTRY = 0xffffffff81ce91f0
(XEN) elf_xen_parse_note: HYPERCALL_PAGE = 0xffffffff81001000
(XEN) elf_xen_parse_note: FEATURES = "!writable_parse_note: LOADER = "generic"
(XEN) elf_xen_parse_note: unknown xen elf note (0xd)
(XEN) elf_xen_parse_note: SUSPEND_CANCEL = 0x1
(XEN) elf_xen_parse_note: MOD_START_PFN = 0x1
(XEN) elf_xen_parse_note: HV_START_LOW = 0xffff800000000000
(XEN) elf_xen_parse_note: PADDR_OFFSET = 0x0
(XEN) elf_xen_addr_calc_check: addresses:
(XEN)     virt_base        = 0xffffffff80000000
(XEN)     elf_paddr_offset = 0x0
(XEN)     virt_offset      = 0xffffffff80000000
(XEN)     virt_kstart      = 0xffffffff81000000
(XEN)     virt_kend        = 0xffffffff82031000
(XEN)     virt_entry       = 0xffffffff81ce91f0
(XEN)     p2m_base         = 0xffffffffffffffff
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x2031000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN)  Dom0 alloc.:   0000000220000000->0000000224000000 (216775 pages to be 
allocated)
(XEN)  Init. ramdisk: 00000003a274e000->00000003a7f861e5
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN)  Loaded kernel: ffffffff81000000->ffffffff82031000
(XEN)  Init. ramdisk: 0000000000000000->0000000000000000
(XEN)  Phys-Mach map: ffffffff82031000->ffffffff82224800
(XEN)  Start info:    ffffffff82225000->ffffffff822254b4
(XEN)  Page tables:   ffffffff82226000->ffffffff8223b000
(XEN)  Boot stack:    ffffffff8223b000->ffffffff8223c000
(XEN)  TOTAL:         ffffffff80000000->ffffffff82400000
(XEN)  ENTRY ADDRESS: ffffffff81ce91f0
(XEN) Dom0 has maximum 3 VCPUs
(XEN) elf_load_binary: phdr 0 at 0xffffffff81000000 -> 0xffffffff81a5a000
(XEN) elf_load_binary: phdr 1 at 0xffffffff81c00000 -> 0xffffffff81cd3000
(XEN) elf_load_binary: phdr 2 at 0xffffffff81cd3000 -> 0xffffffff81ce8118
(XEN) elf_load_binary: phdr 3 at 0xffffffff81ce9000 -> 0xffffffff81ece000
(XEN) Scrubbing Free RAM on 2 nodes using 8 CPUs
(XEN) ..................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(XEN) Std. Loglevel: All
(XEN) Guest Loglevel: All
(XENis relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
Xen)
(XEN) Freed 296kB init memory.
mapping kernel into physical memory
about to get started...
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 00000000c0000081 from 
0xe023e00800000000 to 0x0023001000000000.
(XEN) traps.c:26082 from 0xffff82d0802e3000 to 0xffffffff8175c850.
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 00000000c0000083 from 
0xffff82d0802e3080 to 0xffffffff8175eb80.
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 0000000000000174 from 
0x0000000000000000 to 0x0000000000000010.
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 0000000000000176 from 
0x0000000000000000 to 0xffffffff8175ee60.
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 00000000c0000083 from 
0xffff82d0802e3080 to 0xffffffff8175f0a0.
(XEN) traps.c:2654:d0v0 Domain attempted WRMSR 00000000c0000084 from 
0x0000000000074700 to 0x0000000000047700.
[    0.000000] PAT configuration [0-7]: WB  WT  UC- UC  WC  WP  UC  UC  
[    0.000000] Initializing cgroup subsys cpuset
[ cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.0.0upstream-00001-g11c2120 
(konrad@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.4.4 20100503 (Red Hat 
4.4.4-2) (GCC) ) #1 SMP Wed Apr 15 14:50:04 EDT 2015
[    0.000000] Command line: console=hvc0
[    0.000000] Released 0 page(s)
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] Xen: [mem 0x0000000000000000-0x0000000000095fff] usable
[    0.000000] Xen: [mem 0x0000000000096000-0x00000000000fffff] reserved
[    0.000000] Xen: [mem 0x0000000000100000-0x000000004d069fff] usable
[    0.000000] Xen: [mem 0x000000004d06a000-0x00000000d7e8ffff] unusable
[    0.000000] Xen: [mem 0x00000000d7e90000-0x00000000d7eb3fff] ACPI data
[    0.000000] Xen: [mem 0x00000000d7eb4000-0x00000000d7edffff] ACPI NVS
[    0.000000] Xen: [mem 0x00000000d7ee0000-0x00000000d7ffffff] reserved
[    0.000000] Xen: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[    0.000000] Xen: [mem 0x00000000f6000000-0x00000000f6003fff] reserved
[    0.000000] Xen: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] Xen: [mem 0x00000000fec20000-0x00000000fec20fff] reserved
[    0.000000] Xen: [mem 0x00000000fee00000-0x00000000feefffff] reserved
[    0.000000] Xen: [mem 0x00000000ffe00000-0x00000000ffffffff] reserved
[    0.000000] Xen: [mem 0x0000000100000000-0x00000003a7ffffff] unusable
[    0.000000] Xen: [mem 0x000000fd00000000-0x000000ffffffffff] reserved
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.6 present.
[    0.000000] e820: last_pfn = 0x4d06a max_arch_pfn = 0x400000000
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000] init_memory_mapping: [mem 0x3e400000-0x3e5fffff]
[    0.000000] init_memory_mapping: [mem 0x20000000-0x3e3fffff]
[    00x4d069fff]
[    0.000000] RAMDISK: [mem 0x04000000-0x09838fff]
[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x00000000000FA650 000024 (v02 ACPIAM)
[    0.000000] ACPI: XSDT 0x00000000D7E90100 00006C (v01 SMCI            
20131125 MSFT 00000097)
[    0.000000] ACPI: FACP 0x00000000D7E90290 0000F4 (v04 112513 FACP1100 
20131125 MSFT 00000097)
[    0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in 
FADT/Gpe0Block: 64/32 (20150204/tbfadt-618)
[    0.000000] ACPI: DSDT 0x00000000D7E906C0 006ACE (v02 1BC11  1BC11000 
00000000 INTL 20051117)
[    0.000000] ACPI: FACS 0x00000000D7EB4000 000040
[    0.000000] ACPI: APIC 0x00000000D7E90390 000170 (v02 112513 APIC1100 
20131125 MSFT 00000097)
[    0.000000] ACPI: MCFG 0x00000000D7E90500 00003C (v01 112513 OEMMCFG  
20131125 MSFT 00000097)
[    0.000000] ACPI: OEMB 0x00000000D7EB4040 0000BC (v01 112513 OEMB1100 
20131125 MSFT 00000097)
[    0.000000] ACPI: HPET 0x00000000D7E9A6C0 000038 (v01 112513 OEMHPET  
20131125 MSFT 00000097)
[    0.000000] ACPI: IVRS 0x00000000D7E9A700 0000A8 (v01 AMD    RD890S   
00202031 AMD  00000000)
[    0.000000] ACPI: SRAT 0x00000000D7E9A7B0 0001D0 (v02 AMD    AGESA    
00000001 AMD  00000001)
[    0.000000] ACPI: SLIT 0x00000000D7E9A980 000030 (v01 AMD    AGESA    
00000001 AMD  00000001)
[    0.000000] ACPI: SSDT 0x00000000D7E9A9B0 002914 (v01 A M I  POWERNOW 
00000001 AMD  00000001)
[    0.000000] NUMA turned off
[    0.000000] Faking a node at [mem 0x0000000000000000-0x000000004d069fff]
[    0.000000] NODE_DATA(0) allocated [mem 0x3e6fc000-0x3e6fffff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.000000]   DMA32    [mem 0x0000000001000000-0x000000004d069fff]
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000001000-0x0000000000095fff]
[    0.000000]   node   0: [mem 0x0000000000100000-0x000000004d069fff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000004d069fff]
[    0.000000] p2m virtual area at ffffc90000000000, size is 400000
[    0.000000] Remapped 106 page(s)
[    0.000000] ACPI: PM-Timer IO Port: 0x808
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x20] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x21] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x22] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x23] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x24] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x25] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x26] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x27] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x28] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x29] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x2a] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x2b] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x2c] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x2d] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x2e] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x10] lapic_id[0x2f] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x11] lapic_id[0x90] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x12] lapic_id[0x91] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x13] lapic_id[0x92] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x14] lapic_id[0x93] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x15] lapic_id[0x94] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x16] lapic_id[0x95] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x17] lapic_id[0x96] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x18] lapic_id[0x97] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x19] lapic_id[0x98] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1a] lapic_id[0x99] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1b] lapic_id[0x9a] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1c] lapic_id[0x9b] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1d] lapic_id[0x9c] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1e] lapic_id[0x9d] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x1f] lapic_id[0x9e] disabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x20] lapic_id[0x9f] disabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 0, version 33, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: IOAPIC (id[0x01] address[0xfec20000] gsi_base[24])
[    0.000000] IOAPIC[1]: apic_id 1, version 33, address 0xfec20000, GSI 24-55
[    0.000000] ACPI: IOAPIC (id[0x02] address[0x00000000] gsi_base[56])
[    0.000000] Bogus (zero) I/O APIC address found, skipping!
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8300 base: 0xfed00000
[    0.000000] smpboot: Allowing 32 CPUs, 16 hotplug CPUs
[    0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.000000] PM: Registered nosave memory: [mem 0x00096000-0x000fffff]
[    0.000000] e820: [mem 0xf6004000-0xfebfffff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on Xen
[    0.000000] Xen version: 4.6-unstable (preserve-AD)
[    0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:32 
nr_node_ids:1
[    0.000000] PERCPU: Embedded 31 pages/cpu @ffff88003dc00000 s86296 r8192 
d32488 u131072
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total 
pages: 311056
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: console=hvc0
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] xsave: enabled xstate_bv 0x7, cntxt size 0x340 using standard 
form
[    0.000000] software IO TLB [mem 0x38600000-0x3c600000] (64MB) mapped at 
[ffff880038600000-ffff88003c5fffff]
[    0.000000] Memory: 822956K/1261564K available (7560K kernel code, 838K 
rwdata, 2408K rodata, 1996K init, 1264K bss, 438608K reserved, 0K cma-reserved)
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  Additional per-CPU info printed with stalls.
[    0.000000]  RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=3.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=3
[    0.000000] NR_IRQS:33024 nr_irqs:768 16
[    0.000000] xen:events: Using FIFO-based ABI
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [hvc0] enabled
[    0.000000] installing Xen timer for CPU 0
[    0.000000] tsc: Detected 2100.088 MHz processor
[    7.208498] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 4200.17 BogoMIPS (lpj=2100088)
[    7.208509] pid_max: default: 32768 minimum: 301
[    7.208582] ACPI: Core revision 20150204
[    7.371251] ACPI: All ACPI Tables successfully acquired
[    7.375566] Security Framework initialized
[    7.375577] SELinux:  Initializing.
[    7.376696] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    7.378099] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    7.378692] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    7.378736] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
[    7.380845] Initializing cgroup subsys freezer
[    7.381035] CPU: Physical Processor ID: 0
[    7.381040] CPU: Processor Core ID: 0
[    7.381047] mce: CPU supports 2 MCE banks
[    7.381074] Last level iTLB entries: 4KB 512, 2MB 1024, 4MB 512
[    7.381080] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 512, 1GB 0
[    7.381200] Freeing SMP alternatives memory: 28K (ffffffff81ec6000 - 
ffffffff81ecd000)
[    7.383301] ftrace: allocating 28212 entries in 111 pages
[    7.401495] cpu 0 spinlock event irq 57
[    7.423103] Performance Events: Fam15h core perfctr, (XEN) traps.c:2654:d0v0 
Domain attempted WRMSR 00000000c0010201 from 0x0000000000000000 to 
0x000000000000ffff.
Broken PMU hardware detected, using software events only.
[    7.423139] Failed to access perfctr msr (MSR c0010201 is 0)
[    7.425031] MCE: In-kernel MCE decoding enabled.
[    7.425455] NMI watchdog: disabled (cpu0): hardware events not enabled
[    7.426875] installing Xen timer for CPU 1
[    7.427124] cpu 1 spinlock event irq 64
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 00000000c0000081 from 
0xe023e00800000000 to 0x0023001000000000.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 00000000c0000082 from 
0xffff8302260c3000 to 0xffffffff8175c850.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 00000000c0000083 from 
0xffff8302260c3080 to 0xffffffff8175eb80.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 0000000000000174 from 
0x0000000000000000 to 0x0000000000000010.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 0000000000000176 from 
0x0000000000000000 to 0xffffffff8175ee60.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 00000000c0000083 from 
0xffff8302260c3080 to 0xffffffff8175f0a0.
(XEN) traps.c:2654:d0v1 Domain attempted WRMSR 00000000c0000084 from 
0x0000000000074700 to 0x0000000000047700.
[    7.429440] installing Xen timer for CPU 2
[    7.429614] cpu 2 spinlock event irq 71
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 00000000c0000081 from 
0xe023e00800000000 to 0x0023001000000000.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 00000000c0000082 from 
0xffff830226093000 to 0xffffffff8175c850.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 00000000c0000083 from 
0xffff830226093080 to 0xffffffff8175eb80.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 0000000000000174 from 
0x0000000000000000 to 0x0000000000000010.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 0000000000000176 from 
0x0000000000000000 to 0xffffffff8175ee60.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 00000000c0000083 from 
0xffff830226093080 to 0xffffffff8175f0a0.
(XEN) traps.c:2654:d0v2 Domain attempted WRMSR 00000000c0000084 from 
0x0000000000074700 to 0x0000000000047700.
[    7.430417] x86: Booted up 1 node, 3 CPUs
[    7.432111] devtmpfs: initialized
[    7.447112] PM: Registering ACPI NVS region [mem 0xd7eb4000-0xd7edffff] 
(180224 bytes)
[    7.448227] kworker/u6:0 (25) used greatest stack depth: 14328 bytes left
[    7.450007] RTC time: 18:39:51, date: 04/15/15
[    7.451593] NET: Registered protocol family 16
[    7.451726] xen:grant_table: Grant tables using version 1 layout
[    7.451787] Grant table initialized
[    7.456227] kworker/u6:0 (41) used greatest stack depth: 13632 bytes left
[    7.456402] ACPI: bus type PCI registered
[    7.456409] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    7.465695] dca service started, version 1.12.1
[    7.465867] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 
0xe0000000-0xefffffff] (base 0xe0000000)
[    7.465877] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in E820
(XEN) mm.c:803: d0: Forcing read-only access to MFN e0002
[    7.522099] PCI: Using configuration type 1 for base access
[    7.577773] ACPI: Added _OSI(Module Device)
[    7.577782] ACPI: Added _OSI(Processor Device)
[    7.577788] ACPI: Added _OSI(3.0 _SCP Extensions)
[    7.577794] ACPI: Added _OSI(Processor Aggregator Device)
[    7.599959] ACPI: Executed 2 blocks of module-level executable AML code
[    7.946569] ACPI: Interpreter enabled
[    7.946644] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State 
[\_S2_] (20150204/hwxface-580)
[    7.946682] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State 
[\_S3_] (20150204/hwxface-580)
[    7.946784] ACPI: (supports S0 S1 S4 S5)
[    7.946790] ACPI: Using IOAPIC for interrupt routing
[    7.947571] PCI: Using host bridge windows from ACPI; if necessary, use 
"pci=nocrs" and report a bug
[    8.341135] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-03])
[    8.341186] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM 
Segments MSI]
[    8.341350] acpi PNP0A08:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
[    8.352685] PCI host bridge to bus 0000:00
[    8.352708] pci_bus 0000:00: root bus resource [bus 00-03]
[    8.352729] pci_bus 0000:00: root bus resource [io  0x0000-0x03af window]
[    8.352751] pci_bus 0000:00: root bus resource [io  0x03e0-0x0cf7 window]
[    8.352774] pci_bus 0000:00: root bus resource [io  0x03b0-0x03bb window]
[    8.352795] pci_bus 0000:00: root bus resource [io  0x03c0-0x03df window]
[    8.352816] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    8.352838] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff 
window]
[    8.352860] pci_bus 0000:00: root bus resource [mem 0x000d0000-0x000dffff 
window]
[    8.352882] pci_bus 0000:00: root bus resource [mem 0xde000000-0xdfffffff 
window]
[    8.352903] pci_bus 0000:00: root bus resource [mem 0xdd000000-0xddffffff 
window]
(XEN) PCI add device 0000:00:00.0
(XEN) PCI add device 0000:00:00.2
[    8.362606] pci 0000:00:0d.0: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:0d.0
(XEN) PCI add device 0000:00:11.0
[    8.370441] pci 0000:00:12.0: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:12.0
[    8.374504] pci 0000:00:12.1: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:12.1
[    8.378723] pci 0000:00:12.2: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:12.2
[    8.382823] pci 0000:00:13.0: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:13.0
[    8.386910] pci 0000:00:13.1: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:13.1
[    8.391160] pci 0000:00:13.2: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:13.2
(XEN) PCI add device 0000:00:14.0
(XEN) PCI add device 0000:00:14.3
[    8.402289] pci 0000:00:14.4: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:14.4
[    8.406365] pci 0000:00:14.5: System wakeup disabled by ACPI
(XEN) PCI add device 0000:00:14.5
(XEN) PCI add device 0000:00:18.0
(XEN) PCI add device 0000:00:18.1
(XEN) PCI add device 0000:00:18.2
(XEN) PCI add device 0000:00:18.3
(XEN) PCI add device 0000:00:18.4
(XEN) PCI add device 0000:00:18.5
(XEN) PCI add device 0000:00:19.0
(XEN) PCI add device 0000:00:19.1
(XEN) PCI add device 0000:00:19.2
(XEN) PCI add device 0000:00:19.3
(XEN) PCI add device 0000:00:19.4
(XEN) PCI add device 0000:00:19.5
(XEN) PCI add device 0000:02:00.0
(XEN) PCI add device 0000:02:00.1
[    8.457179] pci 0000:00:0d.0: PCI bridge to [bus 02-03]
(XEN) PCI add device 0000:01:04.0
[    8.460518] pci 0000:00:14.4: PCI bridge to [bus 01] (subtractive decode)
[    8.490722] ACPI: PCI Interrupt Link [LNKA] (IRQs 4 7 *10 11 12 14 15)
[    8.492470] ACPI: PCI Interrupt Link [LNKB] (IRQs 4 7 10 *11 12 14 15)
[    8.494201] ACPI: PCI Interrupt Link [LNKC] (IRQs 4 7 10 11 12 14 *15)
[    8.495939] ACPI: PCI Interrupt Link [LNKD] (IRQs 4 7 10 11 12 *14 15)
[    8.497683] ACPI: PCI Interrupt Link [LNKE] (IRQs 4 7 10 *11 12 14 15)
[    8.499437] ACPI: PCI Interrupt Link [LNKF] (IRQs 4 7 10 11 12 14 15) *0, 
disabled.
[    8.501171] ACPI: PCI Interrupt Link [LNKG] (IRQs 4 7 *10 11 12 14 15)
[    8.502941] ACPI: PCI Interrupt Link [LNKH] (IRQs 4 7 10 11 12 14 15) *0, 
disabled.
[    8.504676] xen:balloon: Initialising balloon driver
[    8.506738] xen_balloon: Initialising balloon driver
[    8.509197] vgaarb: setting as boot device: PCI:0000:01:04.0
[    8.509208] vgaarb: device added: 
PCI:0000:01:04.0,decodes=io+mem,owns=io+mem,locks=none
[    8.509215] vgaarb: loaded
[    8.509220] vgaarb: bridge control possible 0000:01:04.0
[    8.510532] ACPI: bus type USB registered
[    8.511281] usbcore: registered new interface driver usbfs
[    8.511676] usbcore: registered new interface driver hub
[    8.511946] usbcore: registered new device driver usb
[    8.512717] pps_core: LinuxPPS API ver. 1 regist
[    8.513339] PCI: Using ACPI for IRQ routing
[    8.544636] NetLabel: Initializing
[    8.544641] NetLabel:  domain hash size = 128
[    8.544646] NetLabel:  protocols = UNLABELED CIPSOv4
[    8.544911] NetLabel:  unlabeled traffic allowed by default
[    8.546239] Switched to clocksource xen
[    8.666679] pnp: PnP ACPI init
[    8.671987] system 00:00: [mem 0xfec20000-0xfec200ff] could not be reserved
[    8.675394] system 00:01: [mem 0xf6000000-0xf6003fff] has been reservem 
0xfec00000-0xfec00fff] could not be reserved
[    8.688028] system 00:03: [mem 0xfee00000-0xfee00fff] has been reserved
[    8.695848] system 00:04: [io  0x0ca2-0x0ca3] has been reserved
[    8.695889] system 00:04: [io  0x0550-0x0551] has been reserved
[    8.695935] system 00:04: [io  0x04d0-0x04d1] has been reserved
[    8.695975] system 00:04: [io  0x040b] has been reserved
[    8.696015] system 00:04: [io  0x04d6] has been reserved
[    8.696055] system 00:04: [io  0x0c00-0x0c01] has been reserved
[    8.696095] system 00:04: [io  0x0c14] has been reserved
[    8.696134] system 00:04: [io  0x0c50-0x0c51] has been reserved
[    8.696174] system 00:04: [io  0x0c52] has been reserved
[    8.696226] system 00:04: [io  0x0c6c] has been reserved
[    8.696265]4: [io  0x0cd4-0x0cd5] has been reserved
[    8.696428] system 00:04: [io  0x0cd6-0x0cd7] has been reserved
[    8.696467] system 00:04: [io  0x0cd8-0x0cdf] has been reserved
[    8.696509] system 00:04: [io  0x0800-0x089f] could not be reserved
[    8.696548] system 00:04: [io  0x0b00-0x0b0f] has been reserved
[    8.696587] system 00:04: [io  0x0b20-0x0b3f] has been reserved
[    8.696627] system 00:04: [io  0x0900-0x090f] has been reserved
[    8.696667] system 00:04: [io  0x0910-0x091f] has been reserved
[    8.696707] system 00:04: [io  0xfe00-0xfefe] has been reserved
[    8.696750] system 00:04: [mem 0xffb80000-0xffbfffff] has been reserved
[    8.696791] system 00:04: [mem 0xfec10000-0xfec1001f] has been reserved
[    8.696831] system 00:04: [mem 0xffe50000-0xffe5e05f] has been reserved
[    8.703930] Already setup the GSI :4
[    8.719322] system 00:07: [io  0x0a00-0x0a0f] has been reserved
[    8.719364] system 00:07: [io  0x0a10-0x0a1f] has been reserved
[    8.729643] system 00:09: [io  0x164e-0x164f] has been reserved
[    8.732007] system 00:0a: [mem 0xe0000000-0xefffffff] has been reserved
[    8.739196] system 00:0b: [mem 0x000c0000-0x000cffff] could not be reserved
[    8.739257] system 00:0b: [mem 0x000e0000-0x000fffff] could not be reserved
[    8.739304] system 00:0b: [mem 0xfec00000-0xffffffff] could not be i 
0000:00:0d.0: PCI bridge to [bus 02-03]
[    8.801519] pci 0000:00:0d.0:   bridge window [io  0xe000-0xefff]
[    8.801536] pci 0000:00:0d.0:   bridge window [mem 0xdfe00000-0xdfffffff]
[    8.801560] pci 0000:00:14.4: PCI bridge to [bus 01]
[    8.801577] pci 0000:00:14.4:   bridge window [mem 0xdef00000-0xdf7fffff]
[    8.801592] pci 0000:00:14.4:   bridge window [mem 0xdd000000-0xddffffff 
pref]
[    8.802239] NET: Registered protocol family 2
[    8.803975] TCP established hash table entries: 16384 (order: 5, 131072 
bytes)
[    8.804193] TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
[    8.804294] TCP: Hash tables configured (established 16384 bind 16384)
[    8.804411] TCP: reno registered
[    8.804473] UDP hash table entries: 1024 (order: 3, 32768 bytes)
[    8.804546] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
[    8.805437] NET: Registered protocol family 1
[    8.806471] RPC: Registered named UNIX socket transport module.
[    8.806478] RPC: Registered udp transport module.
[    8.806484] RPC: Registered tcp transport module.
[    8.806489] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    9.587123] Already setup the GSI :16
[    9.752118] Already setup the GSI :18
[    9.837070] Already setup the GSI :18
[    9.915473] Unpacking initramfs...
[   11.224255] random: nonblocking pool is initialized
(XEN) MCE: polling routine found correctable error.  Use mcelog to parse above 
error output.
[   13.555387] Freeing initrd memory: 90340K (ffff880004000000 - 
ffff880009839000)
[   13.559635] Machine check injector initi, pre-allocated 0 pages
[   13.575690] VFS: Disk quotas dquot_6.5.2
[   13.576037] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[   13.578672] NFS: Registering the id_resolver key type
[   13.578731] Key type id_resolver registered
[   13.578737] Key type id_legacy registered
[   13.578918] ntfs: driver 2.1.31 [Flags: R/W].
[   13.585803] bounce: pool size: 64 pages
[   13.586093] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 
250)
[   13.586113] io scheduler noop registered
[   13.586130] io scheduler deadline registered
[   13.586376] io scheduler cfq registered (default)
[   13.591659] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[   13.592112] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[   13.594601] input: Power Button as 
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
[   13.594634] ACPI: Power Button [PWRB]
[   13.596029] input: Power Button as 
/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
[   13.596064] ACPI: Power Button [PWRF]
[   13.610445] GHES: HEST is not enabled!
[   13.610481] ioatdma: Intel(R) QuickData Technology Driver 4.00
[   13.615620] xen_pciback: backend is vpci
[   13.618732] xen_acpi_processor: Uploading Xen processor PM info
[   13.944312] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[   13.969514] 00:06: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 
16550A
[   13.993078] 00:08: ttyS2 at I/O 0x3e8 (irq = 7, base_baud = 115200) is a 
16550A
(XEN) mm.c:803: d0: Forcing read-only access to MFN fed00
[   14.000177] hpet_acpi_add: no address or irqs in _CRS
[   14.000983] Non-volatile memory driver v1.3
[   14.001699] Linux agpgart interface v0.103
[   14.005188] AMD IOMMUv2 driver by Joerg Roedel <jroedel@xxxxxxx>
[   14.005195] AMD IOMMUv2 functionality not available on this system
[   14.005452] [drm] Initialized drm 1.1.0 20060810
[   14.049063] loop: module loaded
[   14.052645] zram: Created 1 device(s)
[   14.053820] libphy: Fixed MDIO Bus: probed
igabit PCI Express Virtual Function Network Driver - version 2.12.1-k
[   14.054998] ixgbevf: Copyright (c) 2009 - 2012 Intel Corporation.
[   14.058746] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   14.058778] ehci-pci: EHCI PCI platform driver
[   14.063382] Already setup the GSI :17
[   14.063605] ehci-pci 0000:00:12.2: EHCI Host Controller
[   14.065402] ehci-pci 0000:00:12.2: new USB bus registered, assigned bus 
number 1
[   14.065460] ehci-pci 0000:00:12.2: applying AMD SB700/SB800/Hudson-2/3 EHCI 
dummy qh workaround
[   14.065505] ehci-pci 0000:00:12.2: debug port 1
[   14.066197] ehci-pci 0000:00:12.2: irq 17, io mem 0xdfdf8800
[   14.071253] ehci-pci 0000:00:12.2: USB 2.0 started, EHCI 1.00
[   14.072455] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   14.072467] usb usb1: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.072479] usb usb1: Product: EHCI Host Controller
[   14.072488] usb usb1: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ehci_hcd
[   14.072499] usb usb1: SerialNumber: 0000:00:12.2
[   14.078030] hub 1-0:1.0: USB hub found
[   14.078380] hub 1-0:1.0: 6 ports detected
[   14.092144] Already setup the GSI :19
[   14.092378] ehci-pci 0000:00:13.2: EHCI Host Controller
[   14.094109] ehci-pci 0000:00:13.2: new USB bus registered, assigned bus 
number 2
[   14.094167] ehci-pci 0000:00:13.2: applying AMD SB700/SB800/Hudson-2/3 EHCI 
dummy qh workaround
[   14.094221] ehci-pci 0000:00:13.2: debug port 1
[   14.094955] ehci-pci 0000:00:13.2: irq 19, io mem 0xdfdf8c00
[   14.100324] ehci-pci 0000:00:13.2: USB 2.0 started, EHCI 1.00
[   14.101714] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[   14.101729] usb usb2: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.101741] usb usb2: Product: EHCI Host Controller
[   14.101751] usb usb2: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ehci_hcd
[   14.101762] usb usb2: SerialNumber: 0000:00:13.2
[   14.106953] hub 2-0:1.0: USB hub found
[   14.107261] hub 2-0:1.0: 6 ports detected
[   14.117156] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[   14.117250] ohci-pci: OHCI PCI platform driver
[   14.121571] Already setup the GSI :16
[   14.121762] ohci-pci 0000:00:12.0: OHCI PCI host controller
[   14.123479] ohci-pci 0000:00:12.0: new USB bus registered, assigned bus 
number 3
[   14.124322] ohci-pci 0000:00:12.0: irq 16, io mem 0xdfdf7000
[   14.180598] usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
[   14.180612] usb usb3: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.180625] usb usb3: Product: OHCI PCI host controller
[   14.180635] usb usb3: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ohci_hcd
[   14.180646] usb usb3: SerialNumber: 0000:00:12.0
[   14.185656] hub 3-0:1.0: USB hub found
[   14.185929] hub 3-0:1.0: 3 ports detected
[   14.196211] Already setup the GSI :16
[   14.196415] ohci-pci 0000:00:12.1: OHCI PCI host controller
[   14.198136] ohci-pci 0000:00:12.1: new USB bus registered, assigned bus 
number 4
[   14.198667] ohci-pci 0000:00:12.1: irq 16, io mem 0xdfdf6000
[   14.254645] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[   14.254660] usb usb4: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.254672] usb usb4: Product: OHCI PCI host controller
[   14.254682] usb usb4: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ohci_hcd
[   14.254700] usb usb4: SerialNumber: 0000:00:12.1
[   14.259725] hub 4-0:1.0: USB hub found
[   14.260030] hub 4-0:1.0: 3 ports detected
[   14.270694] Already setup the GSI :18
[   14.270890] ohci-pci 0000:00:13.0: OHCI PCI host controller
[   14.272645] ohci-pci 0000:00:13.0: new USB bus registered, assigned bus 
number 5
[   14.273534] ohci-pci 0000:00:13.0: irq 18, io mem 0xdfdfa000
[   14.329606] usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
[   14.329621] usb usb5: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.329633] usb usb5: Product: OHCI PCI host controller
[   14.329643] usb usb5: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ohci_hcd
[   14.329654] usb usb5: SerialNumber: 0000:00:13.0
[   14.334629] hub 5-0:1.0: USB hub found
[   14.334929] hub 5-0:1.0: 3 ports detected
[   14.345255] Already setup the GSI :18
[   14.345460] ohci-pci 0000:00:13.1: OHCI PCI host controller
[   14.347161] ohci-pci 0000:00:13.1: new USB bus registered, assigned bus 
number 6
[   14.347665] ohci-pci 0000:00:13.1: irq 18, io mem 0xdfdf9000
[   14.403576] usb usb6: New USB device found, idVendor=1d6b, idProduct=0001
[   14.403590] usb usb6: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.403602] usb usb6: Product: OHCI PCI host controller
[   14.403612] usb usb6: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ohci_hcd
[   14.403623] usb usb6: SerialNumber: 0000:00:13.1
[   14.408714] hub 6-0:1.0: USB hub found
[   14.409004] hub 6-0:1.0: 3 ports detected
[   14.419288] Already setup the GSI :18
[   14.419461] ohci-pci 0000:00:14.5: OHCI PCI host controller
[   14.421167] ohci-pci 0000:00:14.5: new USB bus registered, assigned bus 
number 7
[   14.421701] ohci-pci 0000:00:14.5: irq 18, io mem 0xdfdfb000
[   14.477562] usb usb7: New USB device found, idVendor=1d6b, idProduct=0001
[   14.477577] usb usb7: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   14.477589] usb usb7: Product: OHCI PCI host controller
[   14.477599] usb usb7: Manufacturer: Linux 4.0.0upstream-00001-g11c2120 
ohci_hcd
[   14.477610] usb usb7: SerialNumber: 0000:00:14.5
[   14.482586] hub 7-0:1.0: USB hub found
[   14.482879] hub 7-0:1.0: 2 ports detected
[   14.488182] uhci_hcd: USB Universal Host Controller Interface driver
[   14.489364] usbcore: registered new interface driver usblp
[   14.490191] i8042: PNP: No PS/2 controller found. Probing ports directly.
[   14.494440] serio: i8042 KBD port at 0x60,0x64 irq 1
[   14.494495] serio: i8042 AUX port at 0x60,0x64 irq 12
[   14.495936] mousedev: PS/2 mouse device common for all mice
[   14.499735] rtc_cmos 00:02: RTC can wake from S4
[   14.502107] rtc_cmos 00:02: rtc core: registered rtc_cmos as rtc0
[   14.502311] rtc_cmos 00:02: alarms up to one month, y3k, 114 bytes nvram
[   14.505150] Netfilter messages via NETLINK v0.30.
[   14.505390] nf_conntrack version 0.5.0 (7135 buckets, 28540 max)
[   14.506124] ctnetlink v0.93: registering with nfnetlink.
[   14.507822] ip_tables: (C) 2000-2006 Netfilter Core Team
[   14.508461] TCP: cubic registered
[   14.508487] Initializing XFRM netlink socket
[   14.509350] NET: Registered protocol family 10
[   14.512853] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   14.514760] sit: IPv6 over IPv4 tunneling driver
[   14.519898] NET: Registered protocol family 17
[   14.519986] bridge: automatic filtering via arp/ip/ip6tables has been 
deprecated. Update your scripts to load br_netfilter if you need this.
[   14.520438] Key type dns_resolver registered
[   14.523209] mce: Unable to init device /dev/mcelog (rc: -16)
[   14.526497] registered taskstats version 1
[   14.526843] kmemleak: Kernel memory leak detector initialized
[   14.526858] kmemleak: Automatic memory scanning thread started
[   14.532287]   Magic number: 11:157:696
[   14.532446] acpi LNXCPU:0a: hash matches
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[
   14.537799] Freeing unused kernel memory: 1996K (ffffffff81cd3000 - 
ffffffff81ec6000)
[   14.537814] Write protecting the kernel read-only data: 12288k
[   14.551128] Freeing unused kernel memory: 620K (ffff880001765000 - 
ffff880001800000)
[   14.553636] Freeing unused kernel memory: 1688K (ffff880001a5a000 - 
ffff880001c00000)
(XEN) d0 attempted to change d0v0's CR4 flags 00000660 -> 00040760
init started: BusyBox v1.14.3 (2015-04-15 14:53:02 EDT)
(XEN) d0 attempted to change d0v1's CR4 flags 00000660 -> 00040760
(XEN) d0 attempted to change d0v2's CR4 flags 00000660 -> 00040760
Mounting directories  [  OK  ]
[   14.809387] usb 7-1: new full-speed USB device number 2 using ohci-pci
[   14.958436] usb 7-1: New USB device found, idVendor=0557, idProduct=2221
[   14.958464] usb 7-1: New USB device strings: MfG^G^G^G^G^Gmount: mount point 
/proc/bus/usb does not exist
mount: mount point /sys/kernel/config does not exist
FATAL: Error inserting xen_kbdfront 
(/lib/modules/4.0.0upstream-00001-g11c2120/kernel/drivers/input/misc/xen-kbdfront.ko):
 No su^GFATAL: Error inserting xen_fbfront 
(/lib/modules/4.0.0upstream-00001-g11c2120/kernel/drivers/video/fbdev/xen-fbfront.ko):
 No sucG^G^G[   15.442539] udevd (1388): /proc/1388/oom_adj is deprecated, 
please use /proc/1388/oom_score_adj instead.
[   15.561610] Switched to clocksource tsc
[   15.887624] udevadm (1389) used greatest stack depth: 13504 bytes left
Waiting for devices [  OK  ]
[   15.972515] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.2.15-k
[   15.972536] igb: Copyright (c) 2007-2014 In
[   15.984610] SCSI subsystem initialized
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[   
16.012808] libata version 3.00 loaded.
[   16.041808] ahci 0000:00:11.0: version 3.0
[   16.047421] xen: registering gsi 22 triggering 0 polarity 1
[   16.047638] 1] modprobe (2449) used greatest stack depth: 13464 bytes left
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^Gudevd-work[1460]:
 error opening ATTR{/sys/devices/system/cpu/cpu0/online} for writing: 
Permission denied

[   16.234337] scsi host0: ahci
[   16.238742] scsi host1: ahci
[   16.245510] scsi host2: ahci
[   16.252542] scsi host3: ahci
[   16.257377] scsi host4: ahci
[   16.262020] scsi host5:ATA max UDMA/133 abar m1024@0xdfdf8400 port 
0xdfdf8580 irq 22
[   16.265960] ata3: SATA max UDMA/133 abar m1024@0xdfdf8400 port 0xdfdf8600 
irq 22
[   16.265969] ata4: SATA max UDMA/133 abar m1024@0xdfdf8400 port 0xdfdf8680 
irq 22
[   16.265978] ata5: SATA max UDMA/133 abar m1024@0xdfdf8400 port 0xdfdf8700 
irq 22
[   16.265986] ata6: SATA max UDMA/133 abar m1024@0xdfdf8400 port 0xdfdf8780 
irq 22
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[   16.282930] hidraw: 
raw HID events driver (C) Jiri Kosina
[   16.306177] usbcore: registered new interface driver usbhid
[   16.306186] usbhid: USB HID core driver
[   16.307995] modprobe (2547) used greatest stack depth: 13440 bytes left
[   16.360029] igb 0000:02:00.0: added PHC on eth0
[   16.360048] igb 0000:02:00.0: Intel(R) Gigabit Ethernet Network 
Connectigering 0 polarity 1
[   16.361768] xen: --> pirq=41 -> irq=41 (gsi=41)
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[
   16.535871] ip (2634) used greatest stack depth: 13096 bytes left
[   16.572309] ata3: SATA link down (SStatus 0 SControl 300)
[   16.572364] ata2: SATA link down (SStatus 0 SControl 300)
[ ^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[   16.610751] input: 
Winbond Electronics Corp Hermon USB hidmouse Device as 
/devices/pci0000:00/0000:00:14.5/usb7/7-1/7-1:1.0/0003:0557:2221.0001/input/input5
[   16.614564] hid-generic 0003:0557:2221.0001: input,hidraw0: USB HID v1.00 
Mouse [Winbond Electronics Corp Hermon USB hidmouse Device] on 
usb-0000:00:14.5-1/input0
[   16.617423] input: Winbond Electronics Corp Hermon USB hidmouse Device as 
/devices/pci0000:00/0000:00:14.5/usb7/7-1/7-1:1.1/0003:0557:2221.0002/input/input6
[   16.672781] hid-generic 0003:0557:2221.0002: input,hidraw1: USB HID v1.00 
Keyboard [Winbond Electronics Corp Hermon USB hidmouse Device] on 
usb-0000:00:14.5-1/input1
[   16.674192] modprobe (2647) used greatest stack depth: 13032 bytes left
[   16.727335] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[   16.729588] ata1.00: ATA-7: Maxtor 6L080M0, BACE1G10,113 SControl 300)
[   16.734877] ata5.00: ATAPI: TSSTcorp CDDVDW SH-S223C, SB02, max UDMA/100
[   16.735441] scsi 0:0:0:0: Direct-Access     ATA      Maxtor 6L080M0   1G10 
PQ: 0 ANSI: 5
^G^G[   16.742371] igb 0000:02:00.1: added PHC on eth1
[   16.742384] igb 0000:02:00.1: Intel(R) Gigabit Ethernet Network Connection
[   16.742396] igb 0000:02:00.1: eth1: (PCIe:2.5Gb/s:Width x4) 00:25:90:70:fe:fb
[   16.742409] igb 0000:02:00.1: eth1: PBA No: Unknown
[   16.742419] igb 0000:02:00.1: Using MSI-X interrupts. 3 rx queue(s), 3 tx 
queue(s)
^G^G^G[   16.745183] modprobe (2383) used greatest stack depth: 12392 bytes left
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G[
   17.336049] ata5.00: configured for UDMA/100
[   17.941094] scsi 4:0:0:0: CD-ROM            TSSTcorp CDDVDW SH-S223C  SB02 
PQ: 0 ANSI: 5
[   17.964116] modprobe (2379) used greatest stack depth: 11912 bytes left
[   18.007104] sd 0:0:0:0: [sda] 156250000 512-byte logical blocks: (80.0 
GB/74.5 GiB)
[   18.008136] sd 0:0:0:0: [sda] Write Protect is off
[   18.008155] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[   18.008603] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, 
doesn't support DPO or FUA
[   18.018363] sr 4:0:0:0: [sr0] scsi3-mmc drive: 52x/52x writer dvd-ram cd/rw 
xa/form2 cdda tray
[   18.018383] cdrom: Uniform CD-ROM driver Revision: 3.20
[   18.025770] sr 4:0:0:0: Attached scsi CD-ROM sr0
[   18.043757] sd 0:0:0:0: Attached scsi generic sg0 type 0
[   18.045385] sr 4:0:0:0: Attached scsi generic sg1 type 5
[   18.051340]  sda: sda1 sda2 sda3
[   18.062970] sd 0:0:0:0: [sda] Attached SCSI disk
Waiting for init.pre_custom [  OK  ]
Waiting for fb [  OK  ]
No plymouth. Disabling FB tests.
Waiting for network [  OK  ]
Bringing up loopback interface:  [  OK  ]
Bringing up interface eth0:  [   19.768558] IPv6: ADDRCONF(NETDEV_UP): eth0: 
link is not ready
[   19.776570] device eth0 entered promiscuous mode
[  OK  ]
Bringing up interface eth1:  
Determining IP information for eth1...[   20.157499] IPv6: ADDRCONF(NETDEV_UP): 
eth1: link is not ready
[   22.355040] igb 0000:02:00.1 eth1: igb: eth1 NIC Link is Up 1000 Mbps Full 
Duplex, Flow Control: RX/TX
[   22.355302] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   22.767077] igb 0000:02:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full 
Duplex, Flow Control: RX/TX
[   22.767382] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
 done.
[  OK  ]
Bringing up interface switch:  
Determining IP information for switch...[   24.895940] switch: port 1(eth0) 
entered forwarding state
[   24.896027] switch: port 1(eth0) entered forwarding state
 done.
[  OK  ]
touch: cannot touch `/var/lock/subsys/network': No such file or directory
Waiting for init.custom [  OK  ]

Starting SSHd ...

    SSH started [3248]


Waiting for SSHd [  OK  ]
WARNING: ssh currently running [3248] ignoring start request
No plymouth. Disabling FB tests.
[   27.466332] Loading iSCSI transport class v2.0-870.
[   27.481823] iscsi: registered transport (tcp)
iscsistart: transport class version 2.0-870. iscsid version 2.0-872
Could not get list of targets from firmware.
Apr 15 18:4G^G^G^G^G^GRunning in PV context on Xen v4.6.
[   27.614400] xen:xen_evtchn: Event-channel device installed
Starting /usr/sbin/xenstored...Apr 15 18:40:12 tst039 xenstored: TDB: 
tdb_open_ex: could not open file /var/lib/xenstored/tdb: No such file or 
directory 
Ap^GApr 15 18:40:12 tst039 xenstored: Checking store complete.

Setting domain 0 name, domid and JSON config...
Done setting up Dom0
Starting xenconsoled...
Starting QEMU as disk backend for dom0
Apr 15 18:40:12 tst039 iscsid: transport class version 2.0-870. iscsid version 
2.0-872
Apr 15 18:40:12 tst039 iscsid: iSCSI daemon with pid=3316 started!
[0:0:0:0]    disk    ATA      Maxtor 6L080M0   1G10  /dev/sda 
[4:0:0:0]    cd/dvd  TSSTcorp CDDVDW SH-S223C  SB02  /dev/sr0 ^G00:00.0 Host 
bridge: ATI Technologies Inc RD890 Northbridge only dual slot (2x16) PCI-e GFX 
Hydra part (rev 02)
00:00.2 Generic system peripheral [0806]: ATI Technologies Inc Device 5a23
00:0d.0 PCI bridge: ATI Technologies Inc RD890 PCI to PCI bridge (external gfx1 
port B)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI 
mode]
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3d)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Device 1600
00:18.1 Host bridge: Advanced Micro Devices [AMD] Device 1601
00:18.2 Host bridge: Advanced Micro Devices [AMD] Device 1602
00:18.3 Host bridge: Advanced Micro Devices [AMD] Device 1603
00:18.4 Host bridge: Advanced Micro Devices [AMD] Device 1604
00:18.5 Host bridge: Advanced Micro Devices [AMD] Device 1605
00:19.0 Host bridge: Advanced Micro Devices [AMD] Device 1600
00:19.1 Host bridge: Advanced Micro Devices [AMD] Device 1601
00:19.2 Host bridge: Advanced Micro Devices [AMD] Device 1602
00:19.3 Host bridge: Advanced Micro Devices [AMD] Device 1603
00:19.4 Host bridge: Advanced Micro Devices [AMD] Device 1604
00:19.5 Host bridge: Advanced Micro Devices [AMD] Device 1605
01:04.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200eW WPCM450 
(rev 0a)
02:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection 
(rev 01)
02:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection 
(rev 01)
           CPU0       CPU1       CPU2       
  1:          2          0          0  xen-pirq-ioapic-edge  i8042
  8:          1          0          0  xen-pirq-ioapic-edge  rtc0
  9:          0          0          0  xen-pirq-ioapic-level  acpi
 12:          4          0          0  xen-pirq-ioapic-edge  i8042
 16:          2          0          0  xen-pirq-ioapic-level  ohci_hcd:usb3, 
ohci_hcd:usb4
 17:          0          0          0  xen-pirq-ioapic-level  ehci_hcd:usb1
 18:         34          0          0  xen-pirq-ioapic-level  ohci_hcd:usb5, 
ohci_hcd:usb6, ohci_hcd:usb7
 19:          0          0          0  xen-pirq-ioapic-level  ehci_hcd:usb2
 22:        100          0          0  xen-pirq-ioapic-level  0000:00:11.0
 56:      11641          0          0  xen-percpu-virq      timer0
 57:          0          0          0  xen-percpu-ipi       spinlock0
 58:       3037          0          0  xen-percpu-ipi       resched0
 59:        293          0          0  xen-percpu-ipi       callfunc0
 60:          0          0          0  xen-percpu-virq      debug0
 61:        185          0          0  xen-percpu-ipi       callfuncsingle0
 62:          0          0          0  xen-percpu-ipi       irqwork0
 63:          0      11931          0  xen-percpu-virq      timer1
 64:          0          0          0  xen-percpu-ipi       spinlock1
 65:          0       2953          0  xen-percpu-ipi       resched1
 66:          0        512          0  xen-percpu-ipi       callfunc1
 67:          0          0          0  xen-percpu-virq      debug1
 68:          0         84          0  xen-percpu-ipi       callfuncsingle1
 69:          0          0          0  xen-percpu-ipi       irqwork1
 70:          0          0      10539  xen-percpu-virq      timer2
 71:          0          0          0  xen-percpu-ipi       spinlock2
 72:          0          0       1971  xen-percpu-ipi       resched2
 73:          0          0        507  xen-percpu-ipi       callfunc2
 74:          0          0          0  xen-percpu-virq      debug2
 75:          0          0        113  xen-percpu-ipi       callfuncsingle2
 76:          0          0          0  xen-percpu-ipi       irqwork2
 77:         53          0          0   xen-dyn-event     xenbus
 78:          0          0          0  xen-percpu-virq      xen-pcpu
 79:          1          0          0  xen-percpu-virq      mce
 80:        444          0          0  xen-percpu-virq      hvc_console
 81:          1          0          0  xen-pirq-msi-x     eth0
 82:          9          0          0  xen-pirq-msi-x     eth0-rx-0
 83:          9          0          0  xen-pirq-msi-x     eth0-rx-1
 84:         16          0          0  xen-pirq-msi-x     eth0-rx-2
 85:         10          0          0  xen-pirq-msi-x     eth0-tx-0
 86:         16          0          0  xen-pirq-msi-x     eth0-tx-1
 87:         12          0          0  xen-pirq-msi-x     eth0-tx-2
 88:          1          0          0  xen-pirq-msi-x     eth1
 89:         12          0          0  xen-pirq-msi-x     eth1-rx-0
 90:         16          0          0  xen-pirq-msi-x     eth1-rx-1
 91:         13          0          0  xen-pirq-msi-x     eth1-rx-2
 92:         11          0          0  xen-pirq-msi-x     eth1-tx-0
 93:         14          0          0  xen-pirq-msi-x     eth1-tx-1
 94:         12          0          0  xen-pirq-msi-x     eth1-tx-2
 95:         33          0          0   xen-dyn-event     evtchn:xenstored
 96:          0          0          0   xen-dyn-event     evtchn:xenstored
NMI:          0          0          0   Non-maskable interrupts
LOC:          0          0          0   Local timer interrupts
SPU:          0          0          0   Spurious interrupts
PMI:          0          0          0   Performance monitoring interrupts
IWI:          0          0          0   IRQ work interrupts
RTR:          0          0          0   APIC ICR read retries
RES:       3037       2953       1971   Rescheduling interrupts
CAL:        478        596        620   Function call interrupts
TLB:          0          0          0   TLB shootdowns
TRM:          0          0          0   Thermal event interrupts
THR:          0          0          0   Threshold APIC interrupts
MCE:          0          0          0   Machine check exceptions
MCP:          1          1          1   Machine check polls
HYP:      15682      15313      12953   Hypervisor callback interrupts
ERR:          0
MIS:          0
00000000-00000fff : reserved
00001000-00095fff : System RAM
00096000-000fffff : reserved
  000a0000-000bffff : PCI Bus 0000:00
  000c0000-000c7fff : Video ROM
  000ce000-000cefff : Adapter ROM
  000d0000-000dffff : PCI Bus 0000:00
  000f0000-000fffff : System ROM
00100000-4d069fff : System RAM
  01000000-01762394 : Kernel code
  01762395-01cd1b7f : Kernel data
  01ece000-02009fff : Kernel bss
4d06a000-d7e8ffff : Unusable memory
d7e90000-d7eb3fff : ACPI Tables
d7eb4000-d7edffff : ACPI Non-volatile Storage
d7ee0000-d7ffffff : reserved
dd000000-ddffffff : PCI Bus 0000:00
  dd000000-ddffffff : PCI Bus 0000:01
    dd000000-ddffffff : 0000:01:04.0
de000000-dfffffff : PCI Bus 0000:00
  def00000-df7fffff : PCI Bus 0000:01
    deffc000-deffffff : 0000:01:04.0
    df000000-df7fffff : 0000:01:04.0
  dfdf6000-dfdf6fff : 0000:00:12.1
    dfdf6000-dfdf6fff : ohci_hcd
  dfdf7000-dfdf7fff : 0000:00:12.0
    dfdf7000-dfdf7fff : ohci_hcd
  dfdf8400-dfdf87ff : 0000:00:11.0
    dfdf8400-dfdf87ff : ahci
  dfdf8800-dfdf88ff : 0000:00:12.2
    dfdf8800-dfdf88ff : ehci_hcd
  dfdf8c00-dfdf8cff : 0000:00:13.2
    dfdf8c00-dfdf8cff : ehci_hcd
  dfdf9000-dfdf9fff : 0000:00:13.1
    dfdf9000-dfdf9fff : ohci_hcd
  dfdfa000-dfdfafff : 0000:00:13.0
    dfdfa000-dfdfafff : ohci_hcd
  dfdfb000-dfdfbfff : 0000:00:14.5
    dfdfb000-dfdfbfff : ohci_hcd
  dfe00000-dfffffff : PCI Bus 0000:02
    dfe80000-dfe9ffff : 0000:02:00.1
    dfea0000-dfebffff : 0000:02:00.1
    dfedc000-dfedffff : 0000:02:00.1
      dfedc000-dfedffff : igb
    dfee0000-dfefffff : 0000:02:00.1
    dff00000-dff1ffff : 0000:02:00.1
      dff00000-dff1ffff : igb
    dff20000-dff3ffff : 0000:02:00.1
      dff20000-dff3ffff : igb
    dff40000-dff5ffff : 0000:02:00.0
    dff60000-dff7ffff : 0000:02:00.0
    dff9c000-dff9ffff : 0000:02:00.0
      dff9c000-dff9ffff : igb
    dffa0000-dffbffff : 0000:02:00.0
    dffc0000-dffdffff : 0000:02:00.0
      dffc0000-dffdffff : igb
    dffe0000-dfffffff : 0000:02:00.0
      dffe0000-dfffffff : igb
e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
  e0000000-efffffff : reserved
    e0000000-efffffff : pnp 00:0a
f6000000-f6003fff : reserved
  f6000000-f6003fff : pnp 00:01
fec00000-fec00fff : reserved
  fec00000-fec003ff : IOAPIC 0
fec10000-fec1001f : pnp 00:04
fec20000-fec20fff : reserved
  fec20000-fec203ff : IOAPIC 1
fed00000-fed003ff : HPET 2
  fed00000-fed003ff : PNP0103:00
fee00000-feefffff : reserved
  fee00000-fee00fff : Local APIC
    fee00000-fee00fff : pnp 00:03
ffb80000-ffbfffff : pnp 00:04
ffe00000-ffffffff : reserved
  ffe50000-ffe5e05f : pnp 00:04
100000000-3a7ffffff : Unusable memory
fd00000000-ffffffffff : reserved
MemTotal:         917628 kB
MemFree:          533160 kB
MemAvailable:     533308 kB
Buffers:               0 kB
Cached:           297836 kB
SwapCached:            0 kB
Active:            52788 kB
Inactive:         247852 kB
Active(anon):      52788 kB
Inactive(anon):   247852 kB
Active(file):          0 kB
Inactive(file):        0 kB
Unevictable:        4956 kB
Mlocked:            4956 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:          7748 kB
Mapped:            11276 kB
Shmem:            297836 kB
Slab:              59552 kB
SReclaimable:       9684 kB
SUnreclaim:        49868 kB
KernelStack:        1632 kB
PageTables:         1012 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      458812 kB
Committed_AS:     314396 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      274840 kB
VmallocChunk:   34359461448 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:     1261992 kB
DirectMap2M:           0 kB
Waiting for init.late [  OK  ]
+ . /etc/init.d/functions
++ TEXTDOMAIN=initscripts
++ umask 022
++ PATH=/sbin:/usr/sbin:/bin:/usr/bin
++ export PATH
++ '[' -z '' ']'
++ COLUMNS=80
++ '[' -z '' ']'
+++ /sbin/consoletype
++ CONSOLETYPE=serial
++ '[' -f /etc/sysconfig/i18n -a -z '' -a -z '' ']'
++ '[' -z '' ']'
++ '[' -f /etc/sysconfig/init ']'
++ . /etc/sysconfig/init
+++ BOOTUP=color
+++ RES_COL=60
+++ MOVE_TO_COL='echo -en \033[60G'
+++ SETCOLOR_SUCCESS='echo -en \033[0;32m'
+++ SETCOLOR_FAILURE='echo -en \033[0;31m'
+++ SETCOLOR_WARNING='echo -en \033[0;33m'
+++ SETCOLOR_NORMAL='echo -en \033[0;39m'
+++ LOGLEVEL=3
+++ PROMPT=yes
+++ AUTOSWAP=no
+++ ACTIVE_CONSOLES='/dev/tty[1-6]'
++ '[' serial = serial ']'
++ BOOTUP=serial
++ MOVE_TO_COL=
++ SETCOLOR_SUCCESS=
++ SETCOLOR_FAILURE=
++ SETCOLOR_WARNING=
++ SETCOLOR_NORMAL=
++ 
__sed_discard_ignored_files='/\(~\|\.bak\|\.orig\|\.rpmnew\|\.rpmorig\|\.rpmsave\)$/d'
+ mkdir -p /mnt/lab
+ echo '192.168.102.1  build'
+ ping -q -c 1 build
PING build.dumpdata.com (192.168.102.1) 56(84) bytes of data.

--- build.dumpdata.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 1ms
rtt min/avg/max/mdev = 0.355/0.355/0.355/0.000 ms
+ '[' 0 -eq 0 ']'
+ mount build:/srv/tftpboot/lab /mnt/lab -o vers=3
[   30.862767] mount.nfs (3378) used greatest stack depth: 11880 bytes left
+ iscsiadm -m discovery -t st -p build
192.168.102.1:3260,1 
iqn.2003-01.org.linux-iscsi.target:sn.bd5777dc54e541e0bd772761999275e6
+ iscsiadm -m node -L all
Logging in to [iface: default, target: 
iqn.2003-01.org.linux-iscsi.target:sn.bd5777dc54e541e0bd772761999275e6, portal: 
192.168.102.1,3260]
[   31.160493] scsi host6: iSCSI Initiator over TCP/IP
[   31.463476] scsi 6:0:0:0: Direct-Access     LIO-ORG  IBLOCK           4.0  
PQ: 0 ANSI: 5
[   31.475971] sd 6:0:0:0: [sdb] 1953380352 512-byte logical blocks: (1.00 
TB/931 GiB)
[   31.478135] sd 6:0:0:0: Attached scsi generic sg2 type 0
[   31.480213] sd 6:0:0:0: [sdb] Write Protect is off
[   31.480230] sd 6:0:0:0: [sdb] Mode Sense: 43 00 10 08
Login to [iface: default, target: 
iqn.2003-01.org.linux-iscsi.target:sn.bd5777dc54e541e0bd772761999275e6, portal: 
192.168.102.1,3260] successful.
[   31.482634] sd 6:0:0:0: [sdb] Write cache: enabled, read cache: enabled, 
supports DPO and FUA
+ modprobe dm-multipath
[   31.504309] device-mapper: ioctl: 4.30.0-ioctl (2014-12-22) initialised: 
dm-devel@xxxxxxxxxx
[   31.509043] sd 6:0:0:0: [sdb] Attached SCSI disk
[   31.510628] device-mapper: multipath: version 1.8.0 loaded
+ sleep 5
Apr 15 18:40:15 tst039 iscsid: Connection1:0 to [target: 
iqn.2003-01.org.linux-iscsi.target:sn.bd5777dc54e541e0bd772761999275e6, portal: 
192.168.102.1,3260] through [iface: default] is operational now
+ pvscan
  PV /dev/sdb   VG guests   lvm2 [931.44 GiB / 93.44 GiB free]
  Total: 1 [931.44 GiB] / in use: 1 [931.44 GiB] / in no VG: 0 ^G  32 logical 
volume(s) in volume group "guests" now active
+ echo 'NFS done'
NFS done
+ xl info
host                   : tst039.dumpdata.com
release                : 4.0.0upstream-00001-g11c2120
version                : : 8
threads_per_core       : 2
cpu_mhz                : 2100
hw_caps                : 
178bf3ff:2fd3fbff:00000000:00001700:16982203:00000000:01c9bfff:00000000
virt_caps              : hvm hvm_directio
total_memory           : 14334
free_memory            : 13168
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 6
xen_extra              : -unstable
xen_version            : 4.6-unstable
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Tue Apr 14 16:51:18 2015 +0200 git:df9f567
xen_commandline        : scrubber=ceiling com1=115200,8n1 
dom0_mem=999M,max:1232M dom0_max_vcpus=3 cpufreq=performance,verbose 
iommu=verbose,no-intremap console=com1,vga loglvl=all guest_loglvl=all
cc_compiler            : gcc (GCC) 4.4.4 20100503 (Red Hat 4.4.4-2)
cc_compile_by          : konrad
cc_compile_domain      : (none)
cc_compile_date        : Wed Apr 15 14:50:14 EDT 2015
xend_config_format     : 4
+ '[' -e /sys/kernel/debug/xen/mmu/p2m ']'
+ cat /sys/kernel/debug/xen/mmu/p2m
 [0x0->0x96] pfn
 [0x96->0x100] identity
 [0x100->0x3e76a] pfn
 [0x3e76a->0x4d06a] missing
 [0x4d06a->0x4d200] identity
 [0x4d200->0x80000] missing
^G^G^G++ boot_parameter cpuplug
^G++ local param
++ local value
^G^G^G^G^G^G^G^G^G^G^G^G^G^G^G+++ cat /proc/cmdline
^G^G^G^G^G^G+++ tr -s ' \t' '\n'
^G^G^G^G^G^G^G^G^G^G+++ egrep '^cpuplug=|^cpuplug$'
^G^G^G^G^G^G^G^G^G^G^G+++ tail -1
++ param=
++ '[' -z '' ']'
++ return 1
+ HOTPLUG=
+ '[' 1 -eq 0 ']'
+ TMEM_LOADED=0
+ swapon /dev/xvda
swapon: /dev/xvda: stat failed: No such file or directory
+ '[' 255 -eq 0 ']'
++ boot_parameter run
++ local param
++ local value
+++ cat /proc/cmdline
+++ tr -s ' \t' '\n'
+++ egrep '^run=|^run$'
+++ tail -1
++ param=
++ '[' -z '' ']'
++ return 1
+ HOTPLUG=
+ '[' 1 -eq 0 ']'
++ ethtool -i eth0
++ grep driver
++ sed 's/.*: //'
+ DRIVER=igb
++ ethtool -i eth0
++ grep bus
++ sed 's/.*: //'
+ BUS=0000:02:00.0
+ '[' igb == igbvf ']'
Apr 15 18:40:22 tst039 init: starting pid 3610, tty '/dev/tty1': '/bin/sh'
[   39.910280] switch: port 1(eth0) entered forwarding state
Apr 15 18:40:24 tst039 init: reloading /etc/inittab
Apr 15 18:40:24 tst039 init: starting pid 3614, tty '/dev/hvc0': '/bin/sh







Apr 15 18:40:43 tst039 sshd[3616]: WARNING: /etc/ssh/moduli does not exist, 
using fixed modulus
Apr 15 18:40:43 tst039 sshd[3616]: Accepted publickey for root from 
192.168.102.1 port 37475 ssh2
Apr 15 18:40:43 tst039 sshd[3618]: lastlog_openseek: Couldn't stat 
/var/log/lastlog: No such file or directory
[   77.449932] pci 0000:02:10.0: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.0
[   77.453957I add virtual function 0000:02:10.4
[   77.461839] pci 0000:02:10.6: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.6
[   77.465780] pci 0000:02:11.0: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:11.0
[   77.469735] pci 0000:02:11.2: [8086:10ca] type 00 class 0x020000
[   77.471043] igbvf: Intel(R) Gigabit Virtual Function Network Driver - 
version 2.0.2-k
[   77.471055] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[   77.471271] igbvf 0000:02:10.0: enabling device (0000 -> 0002)
(XEN) PCI add virtual function 0000:02:11.2
[   77.473381] igbvf 0000:02:11.2: enabling device (0000 -> 0002)
[   77.473906] igbvf 0000:02:10.0: PF still in reset state. Is the PF interface 
up?
[   77.473915] igbvf 0000:02:10.0: Assigning random MAC address.
[   77.475181] igbvf 0000:02:10.0: PF still resetting
[   77.477005] igbvf 0000:02:11.2: PF still in reset state. Is the PF interface 
up?
[   77.477018] igbvf 0000:02:11.2: Assigning random MAC address.
[   77.478433] igbvf 0000:02:11.2: PF still resetting

[   77.479767] igbvf 0000:02:10.0: Intel(R) 82576 Virtual Function
[   77.479793] igbvf 0000:02:10.0: Address: 72:36:fc:d3:6d:70
[   77.479919] igbvf 0000:02:10.2: enabling device (0000 -> 0002)
[   77.482526] igbvf 0000:02:10.2: PF still in reset state. Is the PF interface 
up?
[   77.482535] igbvf 0000:02:10.2: Assigning random MAC address.
[   77.483806] igbvf 0000:02:10.2: PF still resetting
[   77.485982] igbvf 0000:02:11.2: Intel(R) 82576 Virtual Function
[   77.485992] igbvf 0000:02:11.2: Address: ee:86:13:c0:18:76
[   77.486303] pci 0000:02:11.4: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:11.4
[   77.489015] igbvf 0000:02:11.4: enabling device (0000 -> 0002)
[   77.491911] igbvf 0000:02:11.4: PF still in reset state. Is the PF interface 
up?
[   77.491920] igbvf 0000:02:11.4: Assigning random MAC address.
[   77.493211] igbvf 0000:02:11.4: PF still resetting
[   77.498737] igbvf 0000:02:11.4: Intel(R) 82576 Virtual Function
[   77.498749] igbvf 0000:02:11.4: Address: 76:d3:41:ae:03:d3
[   77.499088] igb 0000:02:00.0: 7 VFs allocated
[   77.503966] igbvf 0000:02:10.2: Intel(R) 82576 Virtual Function
[   77.503980] igbvf 0000:02:10.2: Address: ca:45:20:ab:82:3f
[   77.504114] igbvf 0000:02:10.4: enabling device (0000 -> 0002)
[   77.506738] igbvf 0000:02:10.4: PF still in reset state. Is the PF interface 
up?
[   77.506747] igbvf 0000:02:10.4: Assigning random MAC address.
[   77.508030] igbvf 0000:02:10.4: PF still resetting
[   77.512856] igbvf 0000:02:10.4: Intel(R) 82576 Virtual Function
[   77.512864] igbvf 0000:02:10.4: Address: ca:9d:8a:88:9d:92
[   77.512989] igbvf 0000:02:10.6: enabling device (0000 -> 0002)
[   77.515641] igbvf 0000:02:10.6: PF still in reset state. Is the PF interface 
up?
[   77.515650] igbvf 0000:02:10.6: Assigning random MAC address.
[   77.516932] igbvf 0000:02:10.6: PF still resetting
[   77.871965] igbvf 0000:02:10.6: Intel(R) 82576 Virtual Function
[   77.871993] igbvf 0000:02:10.6: Address: 46:e1:cf:99:e1:3c
[   77.872218] igbvf 0000:02:11.0: enabling device (0000 -> 0002)
[   77.885972] igbvf 0000:02:11.0: PF still in reset state. Is the PF interface 
up?
[   77.885990] igbvf 0000:02:11.0: Assigning random MAC address.
[   77.896931] igbvf 0000:02:11.0: PF still resetting
[   77.905687] igbvf 0000:02:11.0: Intel(R) 82576 Virtual Function
[   77.905700] igbvf 0000:02:11.0: Address: e6:73:16:5c:6e:83
[   78.044934] pci 0000:02:10.1: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.1
[   78.047438:10.1: PF still resetting
[   78.056009] igbvf 0000:02:10.1: Intel(R) 82576 Virtual Function
[   78.056018] igbvf 0000:02:10.1: Address: 5e:b9:31:f9:7d:ed
[   78.056317] pci 0000:02:10.3: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.3
[   78.058757] igbvf 0000:02:10.3: enabling device (0000 -> 0002)
[   78.061456] igbvf 0000:02:10.3: PF still in reset state. Is the PF interface 
up?
[   78.061465] igbvf 0000:02:10.3: Assigning random MAC address.
[   78.062725] igbvf 0000:02:10.3: PF still resetting
[   78.068294] igbvf 0000:02:10.3: Intel(R) 82576 Virtual Function
[   78.068303] igbvf 0000:02:10.3: Address: ce:57:55:0c:d9:7e
[   78.068558] pci 0000:02:10.5: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.5
[   78.071025] igbvf 0000:02:10.5: enabling device (0000 -> 0002)
[   78.073572] igbvf 0000:02:10.5: PF still in reset state. Is the PF interface 
up?
[   78.073581] igbvf 0000:02:10.5: Assigning random MAC address.
[   78.074871] igbvf 0000:02:10.5: PF still resetting
[   78.079814] igbvf 0000:02:10.5: Intel(R) 82576 Virtual Function
[   78.079823] igbvf 0000:02:10.5: Address: 4a:35:04:b6:fd:85
[   78.080137] pci 0000:02:10.7: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:10.7
[   78.085157] igbvf 0000:02:10.7: enabling device (0000 -> 0002)
[   78.087892] igbvf 0000:02:10.7: PF still in reset state. Is the PF interface 
up?
[   78.087901] igbvf 0000:02:10.7: Assigning random MAC address.
[   78.089184] igbvf 0000:02:10.7: PF still resetting
[   78.094055] igbvf 0000:02:10.7: Intel(R) 82576 Virtual Function
[   78.094064] igbvf 0000:02:10.7: Address: 46:be:c0:21:4c:71
[   78.094668] pci 0000:02:11.1: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:11.1
[   78.097061] igbvf 0000:02:11.1: enabling device (0000 -> 0002)
[   78.099800] igbvf 0000:02:11.1: PF still in reset state. Is the PF interface 
up?
[   78.099809] igbvf 0000:02:11.1: Assigning random MAC address.
[   78.101116] igbvf 0000:02:11.1: PF still resetting
[   78.106341] igbvf 0000:02:11.1: Intel(R) 82576 Virtual Function
[   78.106350] igbvf 0000:02:11.1: Address: 16:59:c9:5c:49:7f
[   78.106879] pci 0000:02:11.3: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:11.3
[   78.109316] igbvf 0000:02:11.3: enabling device (0000 -> 0002)
[   78.111982] igbvf 0000:02:11.3: PF still in reset state. Is the PF interface 
up?
[   78.111995] igbvf 0000:02:11.3: Assigning random MAC address.
[   78.113271] igbvf 0000:02:11.3: PF still resetting
[   78.118440] igbvf 0000:02:11.3: Intel(R) 82576 Virtual Function
[   78.118449] igbvf 0000:02:11.3: Address: e2:c1:d1:67:b6:f2
[   78.118879] pci 0000:02:11.5: [8086:10ca] type 00 class 0x020000
(XEN) PCI add virtual function 0000:02:11.5
[   78.121635] igbvf 0000:02:11.5: enabling device (0000 -> 0002)
[   78.124276] igbvf 0000:02:11.5: PF still in reset state. Is the PF interface 
up?
[   78.124285] igbvf 0000:02:11.5: Assigning random MAC address.
[   78.125577] igbvf 0000:02:11.5: PF still resetting
[   78.131068] igbvf 0000:02:11.5: Intel(R) 82576 Virtual Function
[   78.131079] igbvf 0000:02:11.5: Address: 46:4c:af:f8:2d:59
[   78.131384] igb 0000:02:00.1: 7 VFs allocated
[   78.489063] switch: port 1(eth0) entered disabled state
[   79.048280] igb 0000:02:00.1: setting MAC 00:0f:4b:01:01:00 on VF 0
[   79.048309] igb 0000:02:00.1: Reload the VF driver t[   79.103667] igb 
0000:02:00.1: setting MAC 00:0f:4b:01:01:01 on VF 1
[   79.103693] igb 0000:02:00.1: Reload the VF driver tffective.
[   79.158547] igb 0000:02:00.1: setting MAC 00:0f:4b:01:01:02 on VF 2
[   79.158573] igb 0000:02:00.1: Reload the VF driver t[   79.213101] igb 
0000:02:00.1: setting MAC 00:0f:4b:01:01:03 on VF 3
[   79.213127] igb 0000:02:00.1: Reload the VF driver to make this change 
effective.
[   79.267426] igb 0000:02:00.1: setting MAC 00:0f:4b:01:01:04 on VF 4
[   79.267453] igb 0000:02:00.1: Reload the VF driver to make this change 
effective.
[   79.321723] igb 0000:02:00.1: setting MAC 00:0f:4b:01:01:05 on VF 5
[   79.321749] igb 0000:02:00.1: Reload the VF driver t[   79.376735] igb 
0000:02:00.1: setting MAC 00:0f:4b:01:01:06 on VF 6
[   79.376761] igb 0000:02:00.1: Reload the VF driver t[   79.452790] igb 
0000:02:00.0: setting MAC 00:0f:4b:01:01:07 on VF 0
[   79.452816] igb 0000:02:00.0: Reload the VF driver t[   79.507779] igb 
0000:02:00.0: setting MAC 00:0f:4b:01:01:08 on VF 1
[   79.507805] igb 0000:02:00.0: Reload the VF driver to make this change 
effective.
[   79.561961] igb 0000:02:00.0: setting MAC 00:0f:4b:01:01:09 on VF 2
[   79.561986] igb 0000:02:00.0: Reload the VF driver t[   79.616586] igb 
0000:02:00.0: setting MAC 00:0f:4b:01:01:0a on VF 3
[   79.616612] igb 0000:02:00.0: Reload the VF driver t[   79.670779] igb 
0000:02:00.0: setting MAC 00:0f:4b:01:01:0b on VF 4
[   79.670805] igb 0000:02:00.0: Reload the VF driver to make this change 
effective.
[   79.725128] igb 0000:02:00.0: setting MAC 00:0f:4b:01:01:0c on VF 5
[   79.725154] igb 0000:02:00.0: Reload the VF driver t[   79.780473] igb 
0000:02:00.0: setting MAC 00:0f:4b:01:01:0d on VF 6
[   79.780504] igb 0000:02:00.0: Reload the VF driver t[   80.131878] igbvf: 
Intel(R) Gigabit Virtual Function Network Driver - version 2.0.2-k
[   80.131925] igbvf: Copyright (c) 2.155993] igb 0000:02:00.0: VF 0 attempted 
to override administratively set MAC address
[   80.155993] Reload the VF driver to resume operations
[   80.163063] igbvf 0000:02:10.0: Intel(R) 82576 Virtual Function
[   80.163078] igbvf 0000:02:10.0: Address: 00:0f:4b:01:01:07
[   80.163257] igbvf 0000:02:10.2: enabling device (0000 -> 0002)
[   80.187094] igb 0000:02:00.0: VF 1 attempted to override administratively 
set MAC address
[   80.187094] Reload the VF driver to resume operations
[   80.194394] igbvf 0000:02:10.2: Intel(R) 82576 Virtual Function
[   80.194410] igbvf 0000:02:10.2: Address: 00:0f:4b:01:01:08
[   80.194584] igbvf 0000:02:10.4: enabling device (0000 -> 0002)
[   80.219218] igb 0000:02:00.0: VF 2 attempted to override administratively 
set MAC address
[   80.219218] Reload the VF driver to resume operations
[   80.224947] igbvf 0000:02:10.4: Intel(R) 82576 Virtual Function
[   80.224955] igbvf 0000:02:10.4: Address: 00:0f:4b:01:01:09
[   80.225080] igbvf 0000:02:10.6: enabling device (0000 -> 0002)
[   80.250026] igb 0000:02:00.0: VF 3 attempted to override administratively 
set MAC address
[   80.250026] Reload the VF driver to resume operations
[   80.255736] igbvf 0000:02:10.6: Intel(R) 82576 Virtual Function
[   80.255745] igbvf 0000:02:10.6: Address: 00:0f:4b:01:01:0a
[   80.255878] igbvf 0000:02:11.0: enabling device (0000 -> 0002)
[   80.281012] igb 0000:02:00.0: VF 4 attempted to override administratively 
set MAC address
[   80.281012] Reload the VF driver to resume operations
[   80.286402] igbvf 0000:02:11.0: Intel(R) 82576 Virtual Function
[   80.286413] igbvf 0000:02:11.0: Address: 00:0f:4b:01:01:0b
[   80.286536] igbvf 0000:02:11.2: enabling device (0000 -> 0002)
[   80.310050] igb 0000:02:00.0: VF 5 attempted to override administratively 
set MAC address
[   80.310050] Reload the VF driver to resume operations
[   80.315239] igbvf 0000:02:11.2: Intel(R) 82576 Virtual Function
[   80.315250] igbvf 0000:02:11.2: Address: 00:0f:4b:01:01:0c
[   80.315373] igbvf 0000:02:11.4: enabling device (0000 -> 0002)
[   80.339053] igb 0000:02:00.0: VF 6 attempted to override administratively 
set MAC address
[   80.339053] Reload the VF driver to resume operations
[   80.344504] igbvf 0000:02:11.4: Intel(R) 82576 Virtual Function
[   80.344514] igbvf 0000:02:11.4: Address: 00:0f:4b:01:01:0d
[   80.344641] igbvf 0000:02:10.1: enabling device (0000 -> 0002)
[   80.368991] igb 0000:02:00.1: VF 0 attempted to override administratively 
set MAC address
[   80.368991] Reload the VF driver to resume operations
[   80.374383] igbvf 0000:02:10.1: Intel(R) 82576 Virtual Function
[   80.374394] igbvf 0000:02:10.1: Address: 00:0f:4b:01:01:00
[   80.374519] igbvf 0000:02:10.3: enabling device (0000 -> 0002)
[   80.397968] igb 0000:02:00.1: VF 1 attempted to override administratively 
set MAC address
[   80.397968] Reload the VF driver to resume operations
[   80.403313] igbvf 0000:02:10.3: Intel(R) 82576 Virtual Function
[   80.403325] igbvf 0000:02:10.3: Address: 00:0f:4b:01:01:01
[   80.403452] igbvf 0000:02:10.5: enabling device (0000 -> 0002)
[   80.426992] igb 0000:02:00.1: VF 2 attempted to override administratively 
set MAC address
[   80.426992] Reload the VF driver to resume operations
[   80.432304] igbvf 0000:02:10.5: Intel(R) 82576 Virtual Function
[   80.432315] igbvf 0000:02:10.5: Address: 00:0f:4b:01:01:02
[   80.432435] igbvf 0000:02:10.7: enabling device (0000 -> 0002)
[   80.455975] igb 0000:02:00.1: VF 3 attempted to override administratively 
set MAC address
[   80.455975] Reload the VF driver to resume operations
[   80.461142] igbvf 0000:02:10.7: Intel(R) 82576 Virtual Function
[   80.461156] igbvf 0000:02:10.7: Address: 00:0f:4b:01:01:03
[   80.461303] igbvf 0000:02:11.1: enabling device (0000 -> 0002)
[   80.485088] igb 0000:02:00.1: VF 4 attempted to override administratively 
set MAC address
[   80.485088] Reload the VF driver to resume operations
[   80.490390] igbvf 0000:02:11.1: Intel(R) 82576 Virtual Function
[   80.490401] igbvf 0000:02:11.1: Address: 00:0f:4b:01:01:04
[   80.490529] igbvf 0000:02:11.3: enabling device (0000 -> 0002)
[   80.514003] igb 0000:02:00.1: VF 5 attempted to override administratively 
set MAC address
[   80.514003] Reload the VF driver to resume operations
[   80.519140] igbvf 0000:02:11.3: Intel(R) 82576 Virtual Function
[   80.519151] igbvf 0000:02:11.3: Address: 00:0f:4b:01:01:05
[   80.519290] igbvf 0000:02:11.5: enabling device (0000 -> 0002)
[   80.543047] igb 0000:02:00.1: VF 6 attempted to override administratively 
set MAC address
[   80.543047] Reload the VF driver to resume operations
[   80.548333] igbvf 0000:02:11.5: Intel(R) 82576 Virtual Function
[   80.548344] igbvf 0000:02:11.5: Address: 00:0f:4b:01:01:06
[   80.734105] igbvf: Intel(R) Gigabit Virtual Function Network Driver - 
version 2.0.2-k
[   80.734133] igbvf: Copyright (c) 2[   80.759074] igb 0000:02:00.0: VF 0 
attempted to override administratively set MAC address
[   80.759074] Reload the VF driver to resume operations
[   80.766452] igbvf 0000:02:10.0: Intel(R) 82576 Virtual Function
[   80.766465] igbvf 0000:02:10.0: Address: 00:0f:4b:01:01:07
[   80.766639] igbvf 0000:02:10.2: enabling device (0000 -> 0002)
[   80.784496] igb 0000:02:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full 
Duplex, Flow Control: RX/TX
[   80.784740] switch: port 1(eth0) entered forwarding state
[   80.784807] switch: port 1(eth0) entered forwarding state
[   80.791091] igbvf 0000:02:10.2: PF still resetting
[   80.791137] igb 0000:02:00.0: VF 1 attempted to override administratively 
set MAC address
[   80.791137] Reload the VF driver to resume operations
[   80.798798] igbvf 0000:02:10.2: Intel(R) 82576 Virtual Function
[   80.798811] igbvf 0000:02:10.2: Address: 00:0f:4b:01:01:08
[   80.799011] igbvf 0000:02:10.4: enabling device (0000 -> 0002)
[   80.823084] igb 0000:02:00.0: VF 2 attempted to override administratively 
set MAC address
[   80.823084] Reload the VF driver to resume operations
[   80.830386] igbvf 0000:02:10.4: Intel(R) 82576 Virtual Function
[   80.830398] igbvf 0000:02:10.4: Address: 00:0f:4b:01:01:09
[   80.830571] igbvf 0000:02:10.6: enabling device (0000 -> 0002)
[   80.856095] igb 0000:02:00.0: VF 3 attempted to override administratively 
set MAC address
[   80.856095] Reload the VF driver to resume operations
[   80.863555] igbvf 0000:02:10.6: Intel(R) 82576 Virtual Function
[   80.863568] igbvf 0000:02:10.6: Address: 00:0f:4b:01:01:0a
[   80.863740] igbvf 0000:02:11.0: enabling device (0000 -> 0002)
[   80.888127] igb 0000:02:00.0: VF 4 attempted to override administratively 
set MAC address
[   80.888127] Reload the VF driver to resume operations
[   80.895412] igbvf 0000:02:11.0: Intel(R) 82576 Virtual Function
[   80.895424] igbvf 0000:02:11.0: Address: 00:0f:4b:01:01:0b
[   80.895598] igbvf 0000:02:11.2: enabling device (0000 -> 0002)
[   80.920197] igb 0000:02:00.0: VF 5 attempted to override administratively 
set MAC address
[   80.920197] Reload the VF driver to resume operations
[   80.927739] igbvf 0000:02:11.2: Intel(R) 82576 Virtual Function
[   80.927752] igbvf 0000:02:11.2: Address: 00:0f:4b:01:01:0c
[   80.927930] igbvf 0000:02:11.4: enabling device (0000 -> 0002)
[   80.952063] igb 0000:02:00.0: VF 6 attempted to override administratively 
set MAC address
[   80.952063] Reload the VF driver to resume operations
[   80.959337] igbvf 0000:02:11.4: Intel(R) 82576 Virtual Function
[   80.959350] igbvf 0000:02:11.4: Address: 00:0f:4b:01:01:0d
[   80.959527] igbvf 0000:02:10.1: enabling device (0000 -> 0002)
[   80.984062] igb 0000:02:00.1: VF 0 attempted to override administratively 
set MAC address
[   80.984062] Reload the VF driver to resume operations
[   80.991606] igbvf 0000:02:10.1: Intel(R) 82576 Virtual Function
[   80.991619] igbvf 0000:02:10.1: Address: 00:0f:4b:01:01:00
[   80.991791] igbvf 0000:02:10.3: enabling device (0000 -> 0002)
[   81.016063] igb 0000:02:00.1: VF 1 attempted to override administratively 
set MAC address
[   81.016063] Reload the VF driver to resume operations
[   81.023512] igbvf 0000:02:10.3: Intel(R) 82576 Virtual Function
[   81.023525] igbvf 0000:02:10.3: Address: 00:0f:4b:01:01:01
[   81.023703] igbvf 0000:02:10.5: enabling device (0000 -> 0002)
[   81.048077] igb 0000:02:00.1: VF 2 attempted to override administratively 
set MAC address
[   81.048077] Reload the VF driver to resume operations
[   81.055680] igbvf 0000:02:10.5: Intel(R) 82576 Virtual Function
[   81.055694] igbvf 0000:02:10.5: Address: 00:0f:4b:01:01:02
[   81.055911] igbvf 0000:02:10.7: enabling device (0000 -> 0002)
[   81.080078] igb 0000:02:00.1: VF 3 attempted to override administratively 
set MAC address
[   81.080078] Reload the VF driver to resume operations
[   81.087420] igbvf 0000:02:10.7: Intel(R) 82576 Virtual Function
[   81.087432] igbvf 0000:02:10.7: Address: 00:0f:4b:01:01:03
[   81.087613] igbvf 0000:02:11.1: enabling device (0000 -> 0002)
[   81.112085] igb 0000:02:00.1: VF 4 attempted to override administratively 
set MAC address
[   81.112085] Reload the VF driver to resume operations
[   81.119320] igbvf 0000:02:11.1: Intel(R) 82576 Virtual Function
[   81.119336] igbvf 0000:02:11.1: Address: 00:0f:4b:01:01:04
[   81.119512] igbvf 0000:02:11.3: enabling device (0000 -> 0002)
[   81.143084] igb 0000:02:00.1: VF 5 attempted to override administratively 
set MAC address
[   81.143084] Reload the VF driver to resume operations
[   81.150051] igbvf 0000:02:11.3: Intel(R) 82576 Virtual Function
[   81.150065] igbvf 0000:02:11.3: Address: 00:0f:4b:01:01:05
[   81.150247] igbvf 0000:02:11.5: enabling device (0000 -> 0002)
[   81.175088] igb 0000:02:00.1: VF 6 attempted to override administratively 
set MAC address
[   81.175088] Reload the VF driver to resume operations
[   81.182712] igbvf 0000:02:11.5: Intel(R) 82576 Virtual Function
[   81.182725] igbvf 0000:02:11.5: Address: 00:0f:4b:01:01:06
[   81.195556] pciback 0000:02:10.0: seizing device
[   81.196159] pciback 0000:02:10.0: enabling device (0000 -> 0002)
[   81.271550] igb 0000:02:00.1 eth1: igb: eth1 NIC Link is Up 1000 Mbps Full 
Duplex, Flow Control: RX/TX
[   81.312351] pciback 0000:02:10.1: seizing device
[   81.312879] pciback 0000:02:10.1: enabling device (0000 -> 0002)
[   81.431229] pciback 0000:02:10.2: seizing device
[   81.431701] pciback 0000:02:10.2: enabling device (0000 -> 0002)
[   81.543943] pciback 0000:02:10.3: seizing device
[   81.544359] pciback 0000:02:10.3: enabling device (0000 -> 0002)
[   81.660080] pciback 0000:02:10.4: seizing device
[   81.660574] pciback 0000:02:10.4: enabling device (0000 -> 0002)
[   81.775075] pciback 0000:02:10.5: seizing device
[   81.775555] pciback 0000:02:10.5: enabling device (0000 -> 0002)
[   81.891089] pciback 0000:02:10.6: seizing device
[   81.891612] pciback 0000:02:10.6: enabling device (0000 -> 0002)
[   82.005138] pciback 0000:02:10.7: seizing device
[   82.005618] pciback 0000:02:10.7: enabling device (0000 -> 0002)
[   82.122130] pciback 0000:02:11.0: seizing device
[   82.122607] pciback 0000:02:11.0: enabling device (0000 -> 0002)
[   82.237106] pciback 0000:02:11.1: seizing device
[   82.237601] pciback 0000:02:11.1: enabling device (0000 -> 0002)
[   82.351138] pciback 0000:02:11.2: seizing device
[   82.351667] pciback 0000:02:11.2: enabling device (0000 -> 0002)
[   82.467115] pciback 0000:02:11.3: seizing device
[   82.467594] pciback 0000:02:11.3: enabling device (0000 -> 0002)
[   82.583114] pciback 0000:02:11.4: seizing device
[   82.583666] pciback 0000:02:11.4: enabling device (0000 -> 0002)
[   82.698144] pciback 0000:02:11.5: seizing device
[   82.698623] pciback 0000:02:11.5: enabling device (0000 -> 0002)
#cat /g-vm0.cfg
memory=768
boot='d'
vcpus=2
vnclisten='0.0.0.0'
name='g-vm0'
on_crash='preserve'
# IP:192.168.102.90
# MAC:00:0f:4
pci= [ '0000:02:10.1' ]
builder='hvm'
disk = [ 'file:/mnt/lab/bootstrap-x86_64/root_image.iso,hdc:cdrom,r']
kernel = 'hvmloader'
serial='pty'
#lspci -s 02:10.1 -vvv
Ethernet controller: Intel Corporation 82576 Virtual Function (rev 01)
        Subsystem: Super Micro Computer Inc Device 10c9
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Region 0: [virtual] Memory at dfea0000 (64-bit, non-prefetchable) 
[size=16K]
        Region 3: [virtual] Memory at dfe80000 (64-bit, non-prefetchable) 
[size=16K]
        Capabilities: [70] MSI-X: Enable- Count=3 Masked-
                Vector table: BAR=3 offset=00000000
                PBA: BAR=3 offset=00002000
        Capabilities: [a0] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, 
L1 <64us
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- 
Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- FLReset-
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- 
TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x4, ASPM L0s L1, Latency 
L0 <4us, L1 <64us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- 
DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range ABCD, TimeoutDis+
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
                LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- 
SpeedDis-, Selectable De-emphasis: -6dB
                         Transmit Margin: Normal Operating Range, 
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB
        Capabilities: [100 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- 
RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
        Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
                ARICap: MFVC- ACS-, Next Function: 0
                ARICtl: MFVC- ACS-, Function Group: 0
        Kernel driver in use: pciback

# xl create /g-vm0.cfg
Apr 15 18:42:33 tst039 logger: /etc/xen/scripts/block: add 
XENBUS_PATH=backend/vbd/1/5632
(XEN) Xen BUG at iommu_map.c:455
(XEN) ----[ Xen-4.6-unstable  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    4
(XEN) RIP:  iommu_pde_from_gfn+0x38/0x408
(XEN) RFLAGS: 0000000000010202   CONTEXT: hypervisor (d0v2)
(XEN) rax: ffff82e00241aae0   rbx: 0000000000000008   rcx: ffff82c000203020
(XEN) rdx: ffff830226077b08   rsi: ffffffffffffffff   rdi: ffff830225fd7000
(XEN) rbp: ffff830226077ab8   rsp: ffff830226077a48   r8:  ffff8302260d79f0
(XEN) r9:  0000000000000000   r10: 0000000000000000   r11: 0000000000000001
(XEN) r12: ffff82e004496f60   r13: 0000000000000000   r14: 00000000000000e9
(XEN) r15: 00007d2000000000   cr0: 0000000080050033   cr4: 00000000000406f0
(XEN) cr3: 0000000273ed0000   cr2: ffff880029e96fc0
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e010   cs: e008
(XEN) Xen stack trace from rsp=ffff830226077a48:
(XEN)    ffff830226077a58 ffff82d080158b70 ffff830225fd7000 ffff830226077b08
(XEN)    ffffffffffffffff ffff830225fd7190 ffff820000000fff ffff82e00241ab00
(XEN)    ffff82e004496f80 0000000000000003 ffff82e004496f60 0000000000000000
(XEN)    00000000000000e9 00007d2000000000 ffff830226077b78 ffff82d0801561a8
(XEN)    00007cfdd9f88507 0000000100000001 0000000000224b7b ffff830225fd7938
(XEN)    ffffffffffffffff ffff82004002c000 0000000926077bd8 ffff830225fd7000
(XEN)    0000000000000000 0000000000000000 0000000000000000 0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000 0000000000000015
(XEN)    ffff830226077b58 ffff830225fd7000 ffff82e004496f60 0000000000000000
(XEN)    00000000000000e9 00007d2000000000 ffff830226077bd8 ffff82d08015a548
(XEN)    ffff830225fd7020 ffff830226077f18 ffff830226077f18 0000000000224b7b
(XEN)    ffff830226077bd8 00000000ffffffab 0000000000000002 ffff830225fd7000
(XEN)    0000000000000081 0000000000000281 ffff830226077c88 ffff82d08014c50d
(XEN)    ffff82d080313260 0000000000000282 ffff830226077cf8 ffff82d08011fef8
(XEN)    ffff830226077c18 ffff82d08018970c ffff830226077c58 ffff82d0801297cb
(XEN)    0000000000800067 ffff830225fe3430 ffff830200000000 00007f27151fe004
(XEN)    ffff83022607f334 ffff830225fe31c0 ffff830226077c98 fffffffffffffffd
(XEN)    00007f27151fe004 ffff830225fd7000 ffff830226077e38 0000000000000005
(XEN)    ffff830226077c98 ffff82d080148c2f ffff830226077d78 ffff82d080162210
(XEN)    ffff830226077dc8 ffff82d080120fe6 00ff830225fe3430 ffff82d08027cd20
(XEN) Xen call trace:
(XEN)    [<ffff82d0801557a3>] iommu_pde_from_gfn+0x38/0x408
(XEN)    [<ffff82d0801561a8>] amd_iommu_map_page+0x114/0x4cc
(XEN)    [<ffff82d08015a548>] arch_iommu_populate_page_table+0x17e/0x4e6
(XEN)    [<ffff82d08014c50d>] iommu_do_pci_domctl+0x3cb/0x60e
(XEN)    [<ffff82d080148c2f>] iommu_do_domctl+0x17/0x19
(XEN)    [<ffff82d080162210>] arch_do_domctl+0x222e/0x241e
(XEN)    [<ffff82d080104a1c>] do_domctl+0x19eb/0x1b4f
(XEN)    [<ffff82d08022f7cb>] syscall_enter+0xeb/0x145
(XEN) 
(XEN) 
(XEN) ****************************************
(XEN) Panic on CPU 4:
(XEN) Xen BUG at iommu_map.c:455
(XEN) ****************************************
(XEN) 
(XEN) Reboot in five seconds...
telnet> Connection closed.
[Connecting to system 39 ]


While if I have this in the guest config:

device_model_version = 'qemu-xen-traditional'

it loads and runs the guest without issues.


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