Re: Unable to handle kernel paging request at virtual address e9042464

[Nivedita Singhvi <nsnix@comcast.net>]

Christopher S. Aker wrote:
> During testing of unstable as of a few minutes ago, starting a domU:

Might not be the same thing, but I ran into this on the
April 1 nightly snapshot on the 13th of April:

http://marc.theaimsgroup.com/?l=xen-devel&m=111341790309372&w=2

thanks,
Nivedita

> Unable to handle kernel paging request at virtual address e9042464
>  printing eip:
> c01362fe
> *pde = ma 00000000 pa 55555000
>  [<c013f244>] do_anonymous_page+0x1ab/0x1fc
>  [<c013d654>] zap_pmd_range+0x57/0x75
>  [<c013d6ac>] zap_pud_range+0x3a/0x5e
>  [<c013d744>] unmap_page_range+0x74/0x8b
>  [<c013d858>] unmap_vmas+0xfd/0x1ff
>  [<c0141d7a>] unmap_region+0x7b/0xe5
>  [<c0142025>] do_munmap+0xfd/0x14f
>  [<c01420b5>] sys_munmap+0x3e/0x58
>  [<c0109074>] syscall_call+0x7/0xb
> Oops: 0000 [#1]
> Modules linked in:
> CPU:    0
> EIP:    0061:[<c01362fe>]    Not tainted VLI
> EFLAGS: 00010286   (2.6.11-xen0)
> EIP is at set_page_dirty+0x1d/0x50
> eax: e9042454   ebx: 00000000   ecx: c100dfe0   edx: c0257dfc
> esi: c312f22c   edi: 086ff067   ebp: 00001000   esp: c098de50
> ds: 007b   es: 007b   ss: 0069
> Process python (pid: 1620, threadinfo=c098c000 task=c59b0020)
> Stack: 00000061 c013d55b c1056520 c1056520 c013f244 00000010 c100dfe0 00000000
>        b708b000 c044e71c b748b000 c00d9b74 b708c000 00000000 c013d654 c044e71c
>        c00d9b70 b708b000 00001000 00000000 b708b000 c00d9b74 b708c000 00000000
> Call Trace:
>  [<c013d55b>] zap_pte_range+0x252/0x2f4
>  [<c013f244>] do_anonymous_page+0x1ab/0x1fc
>  [<c013d654>] zap_pmd_range+0x57/0x75
>  [<c013d6ac>] zap_pud_range+0x3a/0x5e
>  [<c013d744>] unmap_page_range+0x74/0x8b
>  [<c013d858>] unmap_vmas+0xfd/0x1ff
>  [<c0141d7a>] unmap_region+0x7b/0xe5
>  [<c0142025>] do_munmap+0xfd/0x14f
>  [<c01420b5>] sys_munmap+0x3e/0x58
>  [<c0109074>] syscall_call+0x7/0xb
> Code: 01 8b 44 24 08 89 44 24 04 e9 e1 fe ff ff 83 ec 04 89 c1 8b 50 10 8b 00 a9 00
> 00 01 00 75 38 f6 c2 01 75 17 85 d2 74 13 8b 42 30 <8b> 40 10 85 c0 74 19 89 0c 24 ff
> d0 83 c4 04 c3 8b 01 a8 10 75
> 
> -Chris
> 
> 
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