From: Herbert Poetzl (herbert_at_13thfloor.at)
Date: Thu 17 Apr 2003 - 00:14:16 BST
On Wed, Apr 16, 2003 at 10:31:05AM -0400, Dinesh Mistry wrote:
> I recently upgraded my host server to a Dual AMD 2100 XP system I installed
> a clean 2.4.20 kernel with the ctx-17 patch, now at least 2 times a day the
> VPS seems to crash. I was able to recover this from the console can aby one
> try and help be trouble shoot what is happening.
run it through ksymoops (on the crashing machine)
line 100 means that page->buffers isn't empty on _free_pages_ok ...
take a look at the changelogs, if I remember correctly
this is fixed in one of the 2.4.21 prereleases ...
best,
Herbert
> Thanks.
>
> kernel BUG at page_alloc.c:100!
> invalid operand: 0000
> CPU: 1
> EIP: 0010:[<c0135076>] Not tainted
> EFLAGS: 00010206
> eax: c1b6e23c ebx: c1b6a8f0 ecx: 00000800 edx: c1b600dc
> esi: 00000001 edi: 00000000 ebp: 00010000 esp: cfd93ec4
> ds: 0018 es: 0018 ss: 0018
> Process mysqld (pid: 2077, stackpage=cfd93000)
> Stack: cfd93fc4 fffbfeef 08404a68 cfd93fc4 d22a8804 00000021 cfd92664
> c02f5110
> 00000001 00000003 00010000 c0129a58 c1b6a8f0 00010000 00000003
> cfec9a48
> 00000003 41692000 d0330418 41800000 c02f5100 00000003 41692000
> d0330418
> Call Trace: [<c0129a58>] [<c0246d8f>] [<c0246f32>] [<c012c03d>]
> [<c012c0f3>]
> [<c0108c03>]
>
> Code: 0f 0b 64 00 e8 89 25 c0 8b 53 08 85 d2 74 08 0f 0b 66 00 e8
> <1>Unable to handle kernel NULL pointer dereference at virtual address
> 00000000
> printing eip:
> c0245696
> *pde = 00000000
> Oops: 0002
> CPU: 1
> EIP: 0010:[<c0245696>] Not tainted
> EFLAGS: 00010212
> eax: 00000000 ebx: 00000000 ecx: 00000000 edx: d36be000
> esi: e723b000 edi: 00000040 ebp: 00001000 esp: d36bfe68
> ds: 0018 es: 0018 ss: 0018
> Process loop6 (pid: 1852, stackpage=d36bf000)
> Stack: 00000000 00000000 c1756b30 00000000 00001000 c01a33cf 00000000
> e723b000
> 00001000 00000000 c1c17fac c0117534 d36bfee8 00000000 00000000
> 00001000
> c1756b30 00000000 c01a37b0 f7e9b6a8 00000000 e723b000 00000000
> 00001000
> Call Trace: [<c01a33cf>] [<c0117534>] [<c01a37b0>] [<c0140dd9>]
> [<c012d3d5>]
> [<c012dc01>] [<c0117534>] [<c01a38b0>] [<c01a3700>] [<c01a3944>]
> [<c01a3ed6>]
> [<c01a3de0>] [<c0107266>] [<c01a3de0>]
>
> Code: 0f 7f 03 0f 7f 4b 08 0f 7f 53 10 0f 7f 5b 18 0f 6f 46 20 0f
>
>