Re: [Xen-devel] [Xen-users] kernel 3.9.2 - xen 4.2.2/4.3rc1 => BUG unable to handle kernel paging request netif_poll+0x49c/0xe8

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 17.05.13 at 14:30, Eugene Istomin <e.istomin@xxxxxxx> wrote:
>>  That's quite big a jump.
> Kernels from 3.5 to 3.8 had OCFS2 bugs, in 3.9 all OCFS2 patches are 
> merged.
> 
>> Did you look at these before sending - there's no sign of an oops
>> anywhere afaict.
> Yes, there are no oops in logs. oop is listed only in xl console, and this 
> is 
> looks strage to me.

That likely depends on some configuration setting within the guest.

> [  221.826637] BUG: unable to handle kernel paging request at 
> ffff880078b85000
> [  221.826674] IP: [<ffffffffa001a75c>] netif_poll+0x49c/0xe80 [xennet]
> [  221.826703] PGD a83067 PUD a93067 PMD 7fc2c067 PTE 
> 8010000078b85065
> [  221.826732] Oops: 0003 [#1] SMP 
> [  221.826748] Modules linked in: af_packet hwmon domctl crc32_pclmul 
> crc32c_intel ghash_clmulni_intel joydev aesni_intel ablk_helper cryptd lrw 
> aes_x86_64 xts gf128mul autofs4 scsi_dh_emc scsi_dh_alua scsi_dh_rdac 
> scsi_dh_hp_sw scsi_dh xenblk cdrom xennet ata_generic ata_piix
> [  221.826875] CPU 0 
> [  221.826885] Pid: 0, comm: swapper/0 Not tainted 3.9.2-4.756ee56-xen 
> #1  
> [  221.826911] RIP: e030:[<ffffffffa001a75c>]  [<ffffffffa001a75c>] 
> netif_poll+0x49c/0xe80 [xennet]
> [  221.826945] RSP: e02b:ffff88007b403d18  EFLAGS: 00010286
> [  221.826964] RAX: ffff88007da9b438 RBX: ffff880078b84ec0 RCX: 
> ffff880078b85000
> [  221.826989] RDX: ffff880078bdf7c0 RSI: ffff880078b84ec0 RDI: 
> ffff880078536580
> [  221.827014] RBP: ffff880078479a80 R08: 0000000000000248 R09: 
> 0000000000000000
> [  221.827039] R10: 0000000000000000 R11: 0000000000000001 R12: 
> 0000000000000011
> [  221.827064] R13: 00000000000030f0 R14: ffff88007b403dd8 R15: 
> ffff880078be8800

Sorry, but as said before, this is incomplete (stack dump, no call stack).

Jan


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