2.4.4 Kernel Oops and ls+rm segfaults

2.4.4 Kernel Oops and ls+rm segfaults

[Gregor Jasny]

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Hi!

Can anyone tell me, where this oops came from?
The machine is a HP NetServer II lc (EISA+PCI architecture).
The distribution is a slackware 7.0 with parts of 7.1 and current.
gcc: 2.95.4 20010319 (Debian prerelease)

I hope you can help me.

Regards, 

-Gregor

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ksymoops 2.4.1 on i586 2.4.4-csfddi.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.4-csfddi/ (default)
     -m /boot/System.map-2.4.4-csfddi (specified)

Unable to handle kernel paging request at virtual address c936d300
c0122d8c
*pde = 00000000
Oops: 0002
CPU:    0
EIP:    0010:[<c0122d8c>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010087
eax: 338b95ef   ebx: 01f954ba   ecx: c1518000   edx: 00000023
esi: c119fcdc   edi: 00000202   ebp: c105be90   esp: c1ea1ec4
ds: 0018   es: 0018   ss: 0018
Process rm (pid: 3877, stackpage=c1ea1000)
Stack: c1518ba0 c1518360 c150dbc0 c105be90 c012e3d9 c119fcdc c1518ba0 c150dbc0 
       00001000 c150dbc0 00001000 00000000 00000001 c012ce08 c105be90 00000000 
       c105be90 000011c0 c5d264c4 00000000 c011d9fe c105be90 00000000 c1ea1f48 
Call Trace: [<c012e3d9>] [<c012ce08>] [<c011d9fe>] [<c011dacc>] [<c013dda6>] [<c013c398>] [<c0136194>] 
       [<c013626b>] [<c858b8cc>] [<c0106ac3>] 
Code: 89 44 99 18 89 59 14 8b 56 14 8b 41 10 ff 49 10 39 d0 74 08 

>>EIP; c0122d8c <kmem_cache_free+38/ac>   <=====
Trace; c012e3d9 <try_to_free_buffers+c1/15c>
Trace; c012ce08 <block_flushpage+70/94>
Trace; c011d9fe <truncate_list_pages+f6/184>
Trace; c011dacc <truncate_inode_pages+40/6c>
Trace; c013dda6 <iput+96/15c>
Trace; c013c398 <d_delete+4c/6c>
Trace; c0136194 <vfs_unlink+114/144>
Trace; c013626b <sys_unlink+a7/11c>
Trace; c858b8cc <END_OF_CODE+1d48788/????>
Trace; c0106ac3 <system_call+33/40>
Code;  c0122d8c <kmem_cache_free+38/ac>
0000000000000000 <_EIP>:
Code;  c0122d8c <kmem_cache_free+38/ac>   <=====
   0:   89 44 99 18               mov    %eax,0x18(%ecx,%ebx,4)   <=====
Code;  c0122d90 <kmem_cache_free+3c/ac>
   4:   89 59 14                  mov    %ebx,0x14(%ecx)
Code;  c0122d93 <kmem_cache_free+3f/ac>
   7:   8b 56 14                  mov    0x14(%esi),%edx
Code;  c0122d96 <kmem_cache_free+42/ac>
   a:   8b 41 10                  mov    0x10(%ecx),%eax
Code;  c0122d99 <kmem_cache_free+45/ac>
   d:   ff 49 10                  decl   0x10(%ecx)
Code;  c0122d9c <kmem_cache_free+48/ac>
  10:   39 d0                     cmp    %edx,%eax
Code;  c0122d9e <kmem_cache_free+4a/ac>
  12:   74 08                     je     1c <_EIP+0x1c> c0122da8 <kmem_cache_free+54/ac>

Re: 2.4.4 Kernel Oops and ls+rm segfaults

[Alexander Viro]

On Fri, 1 Jun 2001, Gregor Jasny wrote:

> Hi!
> 
> Can anyone tell me, where this oops came from?
> The machine is a HP NetServer II lc (EISA+PCI architecture).
> The distribution is a slackware 7.0 with parts of 7.1 and current.
> gcc: 2.95.4 20010319 (Debian prerelease)
> 
> I hope you can help me.

Pagecache corruption somewhere.
	a) what filesystems do you have?
	b) is the thing reproducable?

Re: 2.4.4 Kernel Oops and ls+rm segfaults

[Gregor Jasny]

Am Freitag,  1. Juni 2001 10:52 schrieb Alexander Viro:
> On Fri, 1 Jun 2001, Gregor Jasny wrote:
> > Can anyone tell me, where this oops came from?
> > The machine is a HP NetServer II lc (EISA+PCI architecture).
> > The distribution is a slackware 7.0 with parts of 7.1 and current.
> > gcc: 2.95.4 20010319 (Debian prerelease)
> >
>
> Pagecache corruption somewhere.
> 	a) what filesystems do you have?
> 	b) is the thing reproducable?
a) pure ext2-fs (sometimes a mounted nfs)
b) Not really. It happend with earlier kernel revisions, too.

I alredy replaced the fs-utils and compiled the kernel at my workstation 
(with gcc-2.95.3)

If it matters: we have the Compushack FDDI driver installed. It can be found 
at: http://hell.wh8.tu-dresden.de/~gjadm/csfddi-3.0.0-5.diff.gz

Regards,
-Gregor