Re: kswapd 2.4.2? ext3

From: John Duthie (john@beyondhelp.co.nz)
Date: Sun Jun 22 2003 - 17:29:14 EST

On Sat, 21 Jun 2003, Andrew Morton wrote:

yes there is one......

would it have somthign to do with a 50 Gb partition ?? (ext3)

spudgun@hades:/var/log$ df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/hda1 1015704 268580 694516 28% /
/dev/hda3 8131028 2991132 4720200 39% /usr
/dev/hda5 1523568 534240 910612 37% /tmp
/dev/hda8 54396016 47058196 4530064 92% /share
/dev/hda7 8130996 2646480 5064820 35% /home
/dev/hda6 4069296 2207180 1652068 58% /usr/local

 Unable to handle kernel NULL pointer dereference at virtual address
00000028
 c0161203
 *pde = 00000000
 Oops: 0000
 CPU: 0
 EIP: 0010:[<c0161203>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
 EFLAGS: 00010207
 eax: 00000000 ebx: 00000000 ecx: c1163f18 edx: 00000000
 esi: c3cac860 edi: 00000000 ebp: c0286b90 esp: c1163f18
 ds: 0018 es: 0018 ss: 0018
 Process kswapd (pid: 4, stackpage=c1163000)
 Stack: 00000000 c10d7bb4 000001d0 000009f1 c0158622 c11fda60 c10d7bb4
000001d0
        c013439a c10d7bb4 000001d0 000001d0 c10d7bb4 c012b4c8 c10d7bb4
000001d0
        c1162000 00000101 000001d0 00000003 00000020 000001d0 00000020
00000006
 Call Trace: [<c0158622>] [<c013439a>] [<c012b4c8>] [<c012b6b0>]
[<c012b710>]
  [<c012b820>] [<c012b886>] [<c012b9ad>] [<c0105000>] [<c0105676>]
[<c012b910>]
 Code: 8b 5b 28 f6 42 19 04 75 24 39 f3 75 f1 f7 44 24 1c 50 00 00

>>EIP; c0161203 <journal_try_to_free_buffers+23/a0> <=====

>>ecx; c1163f18 <_end+e56694/65517dc>
>>esi; c3cac860 <_end+399efdc/65517dc>
>>ebp; c0286b90 <contig_page_data+b0/340>
>>esp; c1163f18 <_end+e56694/65517dc>
Trace; c0158622 <ext3_releasepage+22/30>
Trace; c013439a <try_to_release_page+3a/50>
Trace; c012b4c8 <shrink_cache+258/300>
Trace; c012b6b0 <shrink_caches+50/80>
Trace; c012b710 <try_to_free_pages_zone+30/50>
Trace; c012b820 <kswapd_balance_pgdat+50/a0>
Trace; c012b886 <kswapd_balance+16/30>
Trace; c012b9ad <kswapd+9d/c0>
Trace; c0105000 <_stext+0/0>
Trace; c0105676 <arch_kernel_thread+26/30>
Trace; c012b910 <kswapd+0/c0>

Code; c0161203 <journal_try_to_free_buffers+23/a0>
00000000 <_EIP>:
Code; c0161203 <journal_try_to_free_buffers+23/a0> <=====
   0: 8b 5b 28 mov 0x28(%ebx),%ebx <=====
Code; c0161206 <journal_try_to_free_buffers+26/a0>
   3: f6 42 19 04 testb $0x4,0x19(%edx)
Code; c016120a <journal_try_to_free_buffers+2a/a0>
   7: 75 24 jne 2d <_EIP+0x2d>
Code; c016120c <journal_try_to_free_buffers+2c/a0>
   9: 39 f3 cmp %esi,%ebx
Code; c016120e <journal_try_to_free_buffers+2e/a0>
   b: 75 f1 jne fffffffe <_EIP+0xfffffffe>
Code; c0161210 <journal_try_to_free_buffers+30/a0>
   d: f7 44 24 1c 50 00 00 testl $0x50,0x1c(%esp,1)
Code; c0161217 <journal_try_to_free_buffers+37/a0>
  14: 00

-> Date: Sat, 21 Jun 2003 20:06:17 -0700
-> From: Andrew Morton <akpm@digeo.com>
-> To: john@beyondhelp.co.nz
-> Cc: linux-kernel@vger.kernel.org
-> Subject: Re: kswapd 2.4.2? ext3
->
-> John Duthie <john@beyondhelp.co.nz> wrote:
-> >
-> >
-> > I don't think kswap should be doing this ....
-> >
-> > 4 ? Z 0:14 [kswapd] <defunct>
->
-> That means kswapd oopsed and then exitted. It should be in the logs
-> somewhere.
->
-> -
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-- 
John Duthie
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