Re: [Xen-devel] kernel BUG at drivers/net/xen-netfront.c:305

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, 2013-02-28 at 13:20 +0000, annie li wrote:
> On 2013-2-28 20:23, Wei Liu wrote:
> > Drop Xen-user, add Xen-devel
> >
> > Annie, this is the bug report I talked about. Have you encountered this
> > before?
> 
> No, I didn't.
> Probably it is what Konrad hit when he run netperf test with bunch of 
> your patches? I did not check the issue you fixed in Konrad's tree at 
> that time.
> 

Could be. But this is a kernel without my patches, so I'm suspecting it
is a vanilla bug.


Wei.

> Thanks
> Annie
> >
> >
> > Wei.
> >
> > On Wed, 2013-02-27 at 19:37 +0000, David Olsen wrote:
> >> Hello,
> >>
> >> I've been having an issue with a particular DomU on a server. The Dom0 runs
> >> other instances just fine, this particular instance will run just fine for 
> >> a
> >> few hours to a few days, then it will just die out with the following 
> >> error:
> >>
> >> ---
> >> kernel BUG at drivers/net/xen-netfront.c:305!
> >> invalid opcode: 0000 [#1] SMP
> >> Modules linked in:
> >> CPU 0
> >> Pid: 0, comm: swapper/0 Not tainted 3.6.6-gentoo #1
> >> RIP: e030:[<ffffffff812c14ad>]  [<ffffffff812c14ad>] 
> >> xennet_alloc_rx_buffers+0x1d7/0x2fe
> >> RSP: e02b:ffff88006da03d80  EFLAGS: 00010286
> >> RAX: 00000000000001ff RBX: ffff880066f88000 RCX: 0000000000000001
> >> RDX: 0000000000000057 RSI: 0000000000000000 RDI: 0000000000004fc0
> >> RBP: 000000000cc1323f R08: 0000000000000000 R09: 00000000000038df
> >> R10: 00000000000004f1 R11: 0000000000003431 R12: 000000000cc13257
> >> R13: ffff8800669c0600 R14: 00000000000004fc R15: 0000000000000057
> >> FS:  00007fcb35820740(0000) GS:ffff88006da00000(0000) 
> >> knlGS:0000000000000000
> >> CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> >> CR2: 00007fcb3052e260 CR3: 000000005aa3a000 CR4: 0000000000042660
> >> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> >> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> >> Process swapper/0 (pid: 0, threadinfo ffffffff81586000, task 
> >> ffffffff81599410)
> >> Stack:
> >>   0000000000000056 0000001864b24900 ffff880066f89430 ffff880066f89c80
> >>   ffff880066f88000 0000000000000001 ffff880066f88758 ffff88006da18d30
> >>   ffff880066f88000 0000000000000000 ffff88006da03e28 ffffffff812c2a61
> >> Call Trace:
> >>   <IRQ>
> >>   [<ffffffff812c2a61>] ? xennet_poll+0xa0a/0xa98
> >>   [<ffffffff8104e45d>] ? hrtimer_interrupt+0x112/0x1c9
> >>   [<ffffffff81326920>] ? net_rx_action+0x6e/0x139
> >>   [<ffffffff8103a91a>] ? __do_softirq+0x9c/0x145
> >>   [<ffffffff81281e9d>] ? __xen_evtchn_do_upcall+0x1b0/0x1ed
> >>   [<ffffffff8141973c>] ? call_softirq+0x1c/0x30
> >>   [<ffffffff8100be36>] ? do_softirq+0x3c/0x7a
> >>   [<ffffffff8103ab82>] ? irq_exit+0x42/0x9a
> >>   [<ffffffff812838cb>] ? xen_evtchn_do_upcall+0x27/0x32
> >>   [<ffffffff8141978e>] ? xen_do_hypervisor_callback+0x1e/0x30
> >>   <EOI>
> >>   [<ffffffff810013aa>] ? hypercall_page+0x3aa/0x1000
> >>   [<ffffffff810013aa>] ? hypercall_page+0x3aa/0x1000
> >>   [<ffffffff81006836>] ? xen_safe_halt+0xc/0x13
> >>   [<ffffffff81011003>] ? default_idle+0x23/0x3f
> >>   [<ffffffff8101182c>] ? cpu_idle+0x60/0xa2
> >>   [<ffffffff8161baca>] ? start_kernel+0x32e/0x339
> >>   [<ffffffff8161b5b5>] ? repair_env_string+0x54/0x54
> >>   [<ffffffff8161e2b2>] ? xen_start_kernel+0x465/0x46b
> >> Code: 45 08 49 c7 45 08 00 00 00 00 48 89 42 08 48 89 10 41 0f b6 d7 49 89 
> >> 5d 20 48 8d 82 a8 01 00 00 48 83 bc c3 40 07 00 00 00 74 02 <0f> 0b 48 8b 
> >> 7c 24 18 4c 89 ac c3 40 07 00 00 48 89 14 24 e8 e2
> >> RIP  [<ffffffff812c14ad>] xennet_alloc_rx_buffers+0x1d7/0x2fe
> >>   RSP <ffff88006da03d80>
> >> ---[ end trace 77f364e88037c131 ]---
> >> Kernel panic - not syncing: Fatal exception in interrupt
> >> ---
> >>
> >> Here's the config for that instance:
> >> kernel = "/xen/kernels/kernel-linux-3.6.11-domU"
> >> memory = 6144
> >> maxmem = 16384
> >> maxvcpus = 24
> >> vcpus = 2
> >> name   = "REDACTED"
> >> disk   = 
> >> ['phy:/dev/vg/REDACTED-root,sda1,w','phy:/dev/swap/REDACTED-swap,sdb1,w']
> >> root   = "/dev/xvda1 ro"
> >> extra  = "console=hvc0 xencons=tty"
> >> vif    = [ 'bridge=eth0,mac=00:16:3e:52:ca:47', 
> >> 'bridge=eth1,mac=00:16:3e:d4:b7:d8' ]
> >>
> >> It's just a basic LAMP setup, with the MySQL being external to the 
> >> instance.
> >>
> >> Running xen version 4.2.0 on a Gentoo Linux box.
> >>
> >> Let me know if the error looks familiar to anyone, or if there is any more
> >> information I can provide.
> >>
> >> -d
> >>
> >>
> >> _______________________________________________
> >> Xen-users mailing list
> >> Xen-users@xxxxxxxxxxxxx
> >> http://lists.xen.org/xen-users
> >
> 



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