Fourth one sent to list.. Please advise if any other information is needed.
A reply would be appreciated even if it is to say that this is the wrong
place.
May 21 03:23:50 nicebox kernel: Unable to handle kernel paging request at
virtual address 938a909e
May 21 03:23:50 nicebox kernel: c013670c
May 21 03:23:50 nicebox kernel: *pde = 00000000
May 21 03:23:50 nicebox kernel: Oops: 0002
May 21 03:23:50 nicebox kernel: CPU: 1
May 21 03:23:50 nicebox kernel: EIP: 0010:[<c013670c>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
May 21 03:23:50 nicebox kernel: EFLAGS: 00210046
May 21 03:23:50 nicebox kernel: eax: 938a909a ebx: d7d0b000 ecx:
0000000a edx: da851000
May 21 03:23:50 nicebox kernel: esi: c1577268 edi: c1577268 ebp:
00000954 esp: df6d5f08
May 21 03:23:50 nicebox kernel: ds: 0018 es: 0018 ss: 0018
May 21 03:23:50 nicebox kernel: Process kswapd (pid: 5, stackpage=df6d5000)
May 21 03:23:50 nicebox kernel: Stack: 0000003d df6df304 c01359b2 c1577268
d7d0b600 df6df000 00200292 da687900
May 21 03:23:50 nicebox kernel: c0135a94 c1577268 df6df200 0000007e
c602ab80 c67f8100 c602ab80 c015507a
May 21 03:23:50 nicebox kernel: c1577268 c602ab80 0000000c 000001d0
00000020 00000006 c0155444 0000169c
May 21 03:23:50 nicebox kernel: Call Trace: [<c01359b2>] [<c0135a94>]
[<c015507a>] [<c0155444>] [<c01370a7>]
May 21 03:23:50 nicebox kernel: [<c0137106>] [<c013721c>] [<c0137298>]
[<c01373cd>] [<c0105000>] [<c01058ce>]
May 21 03:23:50 nicebox kernel: [<c0137330>]
May 21 03:23:50 nicebox kernel: Code: 89 50 04 8b 46 08 8d 56 08 89 58 04 89
03 89 53 04 89 5e 08
>>EIP; c013670c <kmem_cache_free_one+6c/a5> <=====
>>eax; 938a909a Before first symbol
>>ebx; d7d0b000 <_end+179a4a28/1fea4a88>
>>edx; da851000 <_end+1a4eaa28/1fea4a88>
>>esi; c1577268 <_end+1210c90/1fea4a88>
>>edi; c1577268 <_end+1210c90/1fea4a88>
>>ebp; 00000954 Before first symbol
>>esp; df6d5f08 <_end+1f36f930/1fea4a88>
Trace; c01359b2 <free_block+32/50>
Trace; c0135a94 <kmem_cache_free+64/90>
Trace; c015507a <prune_dcache+10a/1a0>
Trace; c0155444 <shrink_dcache_memory+24/40>
Trace; c01370a7 <shrink_caches+77/a0>
Trace; c0137106 <try_to_free_pages_zone+36/50>
Trace; c013721c <kswapd_balance_pgdat+5c/b0>
Trace; c0137298 <kswapd_balance+28/40>
Trace; c01373cd <kswapd+9d/c0>
Trace; c0105000 <_stext+0/0>
Trace; c01058ce <kernel_thread+2e/40>
Trace; c0137330 <kswapd+0/c0>
Code; c013670c <kmem_cache_free_one+6c/a5>
00000000 <_EIP>:
Code; c013670c <kmem_cache_free_one+6c/a5> <=====
0: 89 50 04 mov %edx,0x4(%eax) <=====
Code; c013670f <kmem_cache_free_one+6f/a5>
3: 8b 46 08 mov 0x8(%esi),%eax
Code; c0136712 <kmem_cache_free_one+72/a5>
6: 8d 56 08 lea 0x8(%esi),%edx
Code; c0136715 <kmem_cache_free_one+75/a5>
9: 89 58 04 mov %ebx,0x4(%eax)
Code; c0136718 <kmem_cache_free_one+78/a5>
c: 89 03 mov %eax,(%ebx)
Code; c013671a <kmem_cache_free_one+7a/a5>
e: 89 53 04 mov %edx,0x4(%ebx)
Code; c013671d <kmem_cache_free_one+7d/a5>
11: 89 5e 08 mov %ebx,0x8(%esi)
David Lewis
Senior Security Engineer
VNX Solutions, Inc
[email protected]
410-459-7428 Cell
On Wednesday 21 May 2003 16:45, David Lewis wrote:
Hi David,
> Fourth one sent to list.. Please advise if any other information is needed.
> A reply would be appreciated even if it is to say that this is the wrong
> place.
> May 21 03:23:50 nicebox kernel: Unable to handle kernel paging request at
> virtual address 938a909e
> May 21 03:23:50 nicebox kernel: Process kswapd (pid: 5, stackpage=df6d5000)
I really don't know how often I've seen this in recent 2.4 kernels
(.17,.18,.19,.20 (mainstream) and so on).
For me, I use the rmap VM. The problem is eliminated in that tree. Also the
-aa VM does not have that problem.
I am pretty sure Andrea sent a fix for this issue more than once a while ago
to the list cc'ed Marcelo (correct me if I am wrong), but to quote Andrea:
"We are here to fix bugs. If bug fixes are not accepted we can stop right here
to fix bugs".
ciao, Marc
Hiya Marc,
Thanks for the pointers to the new VM systems. I changed the kernel over to
2.4.21-rc2-ac2 (has rmap in it, right?) and I am rerunning my tests to see
if that solves the problem.
I agree with Andrea about bugs.. I certainly accept them as a necessary
evil. I tend to get frustrated when faced with something that I dont have
the skill to solve myself however. Especially so when I cant seem to get
pointed in the right direction by anyone. :)
Thanks again for your suggestion, and I will let you know if it works out!
David Lewis
Senior Security Engineer
VNX Solutions, Inc <http://www.vnxsolutions.com>
[email protected] <mailto:[email protected]>
410-459-7428 Cell
-----Original Message-----
From: Marc-Christian Petersen [mailto:[email protected]]
Sent: Thursday, May 22, 2003 4:41 AM
To: David Lewis; [email protected]
Cc: Erin Britz
Subject: Re: [OOPS] kswapd 2.4.20
On Wednesday 21 May 2003 16:45, David Lewis wrote:
Hi David,
> Fourth one sent to list.. Please advise if any other information is
needed.
> A reply would be appreciated even if it is to say that this is the wrong
> place.
> May 21 03:23:50 nicebox kernel: Unable to handle kernel paging request at
> virtual address 938a909e
> May 21 03:23:50 nicebox kernel: Process kswapd (pid: 5,
stackpage=df6d5000)
I really don't know how often I've seen this in recent 2.4 kernels
(.17,.18,.19,.20 (mainstream) and so on).
For me, I use the rmap VM. The problem is eliminated in that tree. Also the
-aa VM does not have that problem.
I am pretty sure Andrea sent a fix for this issue more than once a while ago
to the list cc'ed Marcelo (correct me if I am wrong), but to quote Andrea:
"We are here to fix bugs. If bug fixes are not accepted we can stop right
here
to fix bugs".
ciao, Marc
David Lewis wrote:
> Hiya Marc,
>
> Thanks for the pointers to the new VM systems. I changed the kernel over to
> 2.4.21-rc2-ac2 (has rmap in it, right?)
No. IIRC, rmap was dropped from -ac
Carl-Daniel
--
http://www.hailfinger.org/
On Thursday 22 May 2003 18:01, David Lewis wrote:
Hi David,
> Thanks for the pointers to the new VM systems. I changed the kernel over to
np.
> 2.4.21-rc2-ac2 (has rmap in it, right?) and I am rerunning my tests to see
> if that solves the problem.
Nope, -ac dropped rmap some weeks ago (or even months). Carldani is right :)
> I agree with Andrea about bugs.. I certainly accept them as a necessary
> evil. I tend to get frustrated when faced with something that I dont have
> the skill to solve myself however. Especially so when I cant seem to get
> pointed in the right direction by anyone. :)
hehe :) ... Well, some people including me are frustrated about sending
patches (bugfixes) again and again to only see silent ignores, thus also
frustrated about telling the issues, pointing to fixes etc.
> Thanks again for your suggestion, and I will let you know if it works out!
thanks :) Would be great to hear from you if it'll work (I'll bet it will ;)
ciao, Marc