Re: Crash during boot in Debian lenny default dom0 kernel (2.6.26-2-xen-686)

[George Dunlap <George.Dunlap@eu.citrix.com>]

pci=nomsi in the guest command line?

I realize dom0 is a privileged guest, but it still seems like we
should try not to crash Xen as a result on guest input. :-)

Thanks for the work-around,
 -George

On Wed, Feb 24, 2010 at 8:20 PM, Pasi Kärkkäinen <pasik@iki.fi> wrote:
> On Wed, Feb 24, 2010 at 08:08:10PM +0100, Sander Eikelenboom wrote:
>>
>> Wasn't pci=nomsi required for those kernels ?
>>
>
> Yeah, pci=nomsi has been the workaround for this bug..
> Many people have seen (and reported) this bug in the lenny kernel.
>
> Would be good to hunt down the actual reason..
>
> -- Pasi
>
>>
>> Wednesday, February 24, 2010, 7:47:09 PM, you wrote:
>>
>> > I recenty tried to boot my Debian lenny distro on a newer Intel
>> > Nehalem box using Debian Lenny's default xen kernel
>> > (2.6.26-2-xen-686), and it crashed during boot.  Full log attached,
>> > but the key info is here:
>>
>> > I tried doing a "binary search" to see where this was introduced, but
>> > it fails the same way all the way back to c/s 20000.
>>
>> > The same kernel/hypervisor combination boots fine on a different box I have.
>>
>> >  -George
>>
>> > (XEN) ----[ Xen-4.0.0-rc4  x86_64  debug=n  Tainted:    C ]----
>> > (XEN) CPU:    15
>> > (XEN) RIP:    e008:[<ffff82c4801535a9>] pci_enable_msi+0x4c9/0x580
>> > (XEN) RFLAGS: 0000000000010282   CONTEXT: hypervisor
>> > (XEN) rax: ffff82c3ffeb6141   rbx: 0000000000000000   rcx: ffff830828b0e690
>> > (XEN) rdx: ffff830828b0e718   rsi: ffff8300bf6975b0   rdi: ffff830828b0e6e0
>> > (XEN) rbp: ffff83082cd7fec8   rsp: ffff83082cd7fd88   r8:  0000000000000005
>> > (XEN) r9:  ffff830828b0e700   r10: 00000000000000a8   r11: 0000000000000040
>> > (XEN) r12: ffff830828b0e710   r13: ffff830828b0e670   r14: ffff83082cd7fe38
>> > (XEN) r15: 0000000000000000   cr0: 000000008005003b   cr4: 00000000000026f0
>> > (XEN) cr3: 000000043fdcf000   cr2: ffff82c3ffeb614d
>> > (XEN) ds: 007b   es: 007b   fs: 00d8   gs: 0000   ss: 0000   cs: e008
>> > (XEN) Xen stack trace from rsp=ffff83082cd7fd88:
>> > (XEN)    0000000000000246 ffff830828b0e6e0 0000000080000000 0000000100000000
>> > (XEN)    3408000000000000 0000000200000000 000f5861e4a00100 0000000000000141
>> > (XEN)    ffff83082cd71ec8 ffff83082cd7fec8 0000000000000136 ffff83082cd60000
>> > (XEN)    0000000000000038 00000000ffffffed 0000000000000000 ffff82c480154832
>> > (XEN)    00000000000004d8 0000000000000038 00000000000000e0 ffff83083fd81c80
>> > (XEN)    ffff830828b0e670 00000000f5861e0c 0000000000000000 ffff83082cd60000
>> > (XEN)    ffff83082cd400f0 00000000f5861e0c 0000000000000136 0000000000000038
>> > (XEN)    ffff83082cd7fec8 ffff82c4801ede5f 7265646e776f206f ffff82c48024c080
>> > (XEN)    ffff83082cd60180 ffff83082cd7fe98 0000000000007ff0 ffffffffffffffff
>> > (XEN)    0000000800000000 0000000100000000 ffff8308f5861e4a ffff82c4802eaa80
>> > (XEN)    0000000800000000 0000000000000038 f5861e4a00000001 000000000000000f
>> > (XEN)    ffffffffffffffff ffff8300bf2e8000 0000000000000035 0000000000000000
>> > (XEN)    0000000000000000 0000000000000000 0000000000000000 ffff82c4801ef863
>> > (XEN)    0000000000000000 0000000000000000 0000000000000000 0000000000000000
>> > (XEN)    0000000000000035 000000000000000d 0000000000000000 0000000000000000
>> > (XEN)    0000000000000000 0000000000000000 0000000000000021 00000000f5861e0c
>> > (XEN)    00000000c033741f 00000000ffffffff 0000000000000000 0000010000000000
>> > (XEN)    00000000c0101427 0000000000000061 0000000000000286 00000000f5861e08
>> > (XEN)    0000000000000069 0000000000000000 0000000000000000 0000000000000000
>> > (XEN)    0000000000000000 000000000000000f ffff8300bf2e8000
>> > (XEN) Xen call trace:
>> > (XEN)    [<ffff82c4801535a9>] pci_enable_msi+0x4c9/0x580
>> > (XEN)    [<ffff82c480154832>] map_domain_pirq+0x242/0x2f0
>> > (XEN)    [<ffff82c4801ede5f>] compat_physdev_op+0xc8f/0x1010
>> > (XEN)    [<ffff82c4801ef863>] compat_hypercall+0x83/0x90
>> > (XEN)
>> > (XEN) Pagetable walk from ffff82c3ffeb614d:
>> > (XEN)  L4[0x105] = 00000000bf4e2027 5555555555555555
>> > (XEN)  L3[0x10f] = 00000000bf698063 5555555555555555
>> > (XEN)  L2[0x1ff] = 00000000bf697063 5555555555555555
>> > (XEN)  L1[0x0b6] = f5861e4a00100173 ffffffffffffffff
>> > (XEN)
>> > (XEN) ****************************************
>> > (XEN) Panic on CPU 15:
>> > (XEN) FATAL PAGE FAULT
>> > (XEN) [error_code=000b]
>> > (XEN) Faulting linear address: ffff82c3ffeb614d
>> > (XEN) ****************************************
>>
>>
>>
>> --
>> Best regards,
>>  Sander                            mailto:linux@eikelenboom.it
>>
>>
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