Re: [PATCH] compilation fix of ia64 hypervisor.c, utils.c (was Re:[Xen-ia64-devel] latest tree building fail.)

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

Hi.

Maybe I understand the cause.
It's side effect of CONFIG_VIRTUAL_FRAME_TABLE.
If CONFIG_VIRTUAL_FRAME_TABLE is defined, there is no page_info's
corresponding to ACPI table pages.
Thus set_gpfn_from_mfn() in assign_domain_page() causes dtlb fault
and xen dtlb miss handler falls to frame_table_fault and then
dispatch_to_fault_handler().

This is fixed by the patch balloon_driver_xen.patch
which I will post soon.


BTW
ia64_fault()
            case 4:
                printk("Alt ITLB.\n");
                break;
          
Should This be "Alt DTLB"?

Thanks.

On Wed, May 10, 2006 at 09:18:06PM -0600, Alex Williamson wrote:
> On Thu, 2006-05-11 at 10:52 +0800, Tian, Kevin wrote:
> > Have to say it's bad news. When I turned on 
> > xen_ia64_dom0_virtual_physical in xen, it halts even before starting 
> > dom0. Based on tip (Rev 9992). Maybe we should try this feature later 
> > when all patch sets are checked in. :-(
> 
> Hi Kevin,
> 
>    This looks exactly like what I'm seeing except mine is an MCA.  It's
> in the same area of xen bootup and the XIP of the MCA log is also
> pointing at assign_domain_page called from dom_fw_dom0_passthrough.
> Looks like Tetsu's patch provides a nice stack dump for helping to debug
> this now.  Thanks,
> 
>       Alex
> 
> > (XEN) assign_domain_page: mpaddr 7ff80000 already mapped!
> > 
> > (XEN) assign_domain_page: mpaddr 7ff84000 already mapped!
> > 
> > (XEN) ia64_fault, vector=0x0000000000000004, ifa=f3ffffffffd00000, 
> > iip=f00000000404b580, ipsr=0000101008622030, isr=0000080200000000
> > 
> > (XEN) Alt ITLB.
> > 
> > (XEN) d 0xf000000007ff8018 domid 32767
> > 
> > (XEN) vcpu 0xf0000000040c4000 vcpu 0
> > 
> > (XEN) 
> > 
> > (XEN) CPU 0
> > 
> > (XEN) psr : 0000101008622030 ifs : 8000000000000308 ip  : 
> > [<f00000000404b580>]
> > 
> > (XEN) ip is at assign_domain_page+0xd0/0x120
> > 
> > (XEN) unat: 0000000000000000 pfs : 0000000000000309 rsc : 0000000000000003
> > 
> > (XEN) rnat: effffffff1000000 bsps: 000000000000fffe pr  : 10a0808800c51a9b
> > 
> > (XEN) ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f
> > 
> > (XEN) csd : 0930ffff00090000 ssd : 0930ffff00090000
> > 
> > (XEN) b0  : f00000000404bb40 b6  : f000000004044010 b7  : f00000007fb1c7a0
> > 
> > (XEN) f6  : 0fffafffffffff0000000 f7  : 0ffdde000000000000000
> > 
> > (XEN) f8  : 10001e000000000000000 f9  : 100038000000000000000
> > 
> > (XEN) f10 : 0fffddffffffff2000000 f11 : 1003e0000000000000000
> > 
> > (XEN) r1  : f000000004302a90 r2  : 000000007ffb8000 r3  : f000000004164000
> > 
> > (XEN) r8  : 0000000000000000 r9  : f000000004164020 r10 : f000000004164030
> > 
> > (XEN) r11 : f000000004164040 r12 : f0000000040cbcb0 r13 : f0000000040c4000
> > 
> > (XEN) r14 : f3ffffffffd00000 r15 : 001000007ffb4761 r16 : 0000000000000000
> > 
> > (XEN) r17 : 000000000001ffed r18 : ffffffffffffe551 r19 : f000000004104f10
> > 
> > (XEN) r20 : 0000000000000001 r21 : f00000000410bf10 r22 : ffffc0000000001f
> > 
> > (XEN) r23 : 0000000000000053 r24 : 0000000000000053 r25 : 0000000000000054
> > 
> > (XEN) r26 : 000000000000005f r27 : 0000000000000000 r28 : 0000000000000000
> > 
> > (XEN) r29 : 0000000000000000 r30 : 0000000000000000 r31 : f000000004113aa0
> > 
> > (XEN) 
> > 
> > (XEN) Call Trace:
> > 
> > (XEN)  [<f00000000408a100>] show_stack+0x80/0xa0
> > 
> > (XEN)                                 sp=f0000000040cb860 
> > bsp=f0000000040c51e0
> > 
> > (XEN)  [<f000000004060f70>] ia64_fault+0x290/0x680
> > 
> > (XEN)                                 sp=f0000000040cba30 
> > bsp=f0000000040c51a8
> > 
> > (XEN)  [<f000000004088da0>] ia64_leave_kernel+0x0/0x310
> > 
> > (XEN)                                 sp=f0000000040cbab0 
> > bsp=f0000000040c51a8
> > 
> > (XEN)  [<f00000000404b580>] assign_domain_page+0xd0/0x120
> > 
> > (XEN)                                 sp=f0000000040cbcb0 
> > bsp=f0000000040c5168
> > 
> > (XEN)  [<f00000000404bb40>] assign_domain_same_page+0x60/0xa0
> > 
> > (XEN)                                 sp=f0000000040cbcb0 
> > bsp=f0000000040c5138
> > 
> > (XEN)  [<f00000000404bc00>] assign_domain_mach_page+0x30/0x50
> > 
> > (XEN)                                 sp=f0000000040cbcc0 
> > bsp=f0000000040c5108
> > 
> > (XEN)  [<f000000004051e70>] dom_fw_dom0_passthrough+0x2b0/0x2c0
> > 
> > (XEN)                                 sp=f0000000040cbcc0 
> > bsp=f0000000040c50c8
> > 
> > (XEN)  [<f000000004087ba0>] efi_memmap_walk_type+0xc0/0xf0
> > 
> > (XEN)                                 sp=f0000000040cbcc0 
> > bsp=f0000000040c5080
> > 
> > (XEN)  [<f000000004054080>] dom_fw_setup+0x21c0/0x2ae0
> > 
> > (XEN)                                 sp=f0000000040cbcc0 
> > bsp=f0000000040c4ec0
> > 
> > (XEN)  [<f00000000404a8f0>] new_thread+0x2e0/0x4a0
> > 
> > (XEN)                                 sp=f0000000040cbd00 
> > bsp=f0000000040c4e70
> > 
> > (XEN)  [<f00000000404df40>] construct_dom0+0x8a0/0x1000
> > 
> > (XEN)                                 sp=f0000000040cbd00 
> > bsp=f0000000040c4d80
> > 
> > (XEN)  [<f00000000406d2d0>] start_kernel+0xf10/0x1180
> > 
> > (XEN)                                 sp=f0000000040cbde0 
> > bsp=f0000000040c4d28
> > 
> > (XEN)  [<f00000000401a0a0>] _start+0x340/0x360
> > 
> > (XEN)                                 sp=f0000000040cbe00 
> > bsp=f0000000040c4cc0
> > 
> > (XEN) 
> > 
> > (XEN) ****************************************
> > 
> > (XEN) Panic o
> 
> -- 
> Alex Williamson                             HP Linux & Open Source Lab
> 
> 
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> 

-- 
yamahata

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