Re: 2.4.22-pre lockups (decoded oops for pre8)

[Stephan von Krawczynski <skraw@ithnet.com>]

Hello Marcelo, hello andrea,

after some days of running 2.4.22-pre8 I finally got the crash (freeze as
usual). This time the debuggin setup worked and I got:


ksymoops 2.4.8 on i686 2.4.22-pre8.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.22-pre8/ (default)
     -m /boot/System.map-2.4.22-pre8 (default)

Warning: You did not tell me where to find symbol information.  I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc.  ksymoops -h explains the options.

Unable to handle kernel paging request at virtual address 4129b0fc
c0130084
*pde = 313f6067
Oops: 0002
CPU:    1
EIP:    0010:[<c0130084>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000   ebx: c2cfdba0   ecx: 00000000   edx: 4129b0fc
esi: d5fb0a24   edi: 0001ca22   ebp: c02eaaa8   esp: c345df30
ds: 0018   es: 0018   ss: 0018
Process kswapd (pid: 5, stackpage=c345d000)
Stack: c2cfdba0 d5fb0a24 c2cfdba0 c013924f c2cfdba0 000001d0 00000200 000001d0 
       00000006 00000020 000001d0 00000020 00000006 c0139493 00000006 00000001 
       c02eaaa8 000001d0 00000006 c02eaaa8 00000000 c013950e 00000020 c02eaaa8 
Call Trace:    [<c013924f>] [<c0139493>] [<c013950e>] [<c013961c>] [<c01396a8>]
  [<c01397d8>] [<c0139740>] [<c0105000>] [<c010592e>] [<c0139740>]
Code: 89 02 c7 43 24 00 00 00 00 f0 ff 0d 9c a5 37 c0 5a 5b 5e c3 


>>EIP; c0130084 <__remove_inode_page+44/60>   <=====

>>ebx; c2cfdba0 <_end+2952980/3852ee40>
>>esi; d5fb0a24 <_end+15c05804/3852ee40>
>>ebp; c02eaaa8 <contig_page_data+168/340>
>>esp; c345df30 <_end+30b2d10/3852ee40>

Trace; c013924f <shrink_cache+2df/3b0>
Trace; c0139493 <shrink_caches+63/a0>
Trace; c013950e <try_to_free_pages_zone+3e/60>
Trace; c013961c <kswapd_balance_pgdat+4c/b0>
Trace; c01396a8 <kswapd_balance+28/40>
Trace; c01397d8 <kswapd+98/c0>
Trace; c0139740 <kswapd+0/c0>
Trace; c0105000 <_stext+0/0>
Trace; c010592e <arch_kernel_thread+2e/40>
Trace; c0139740 <kswapd+0/c0>

Code;  c0130084 <__remove_inode_page+44/60>
00000000 <_EIP>:
Code;  c0130084 <__remove_inode_page+44/60>   <=====
   0:   89 02                     mov    %eax,(%edx)   <=====
Code;  c0130086 <__remove_inode_page+46/60>
   2:   c7 43 24 00 00 00 00      movl   $0x0,0x24(%ebx)
Code;  c013008d <__remove_inode_page+4d/60>
   9:   f0 ff 0d 9c a5 37 c0      lock decl 0xc037a59c
Code;  c0130094 <__remove_inode_page+54/60>
  10:   5a                        pop    %edx
Code;  c0130095 <__remove_inode_page+55/60>
  11:   5b                        pop    %ebx
Code;  c0130096 <__remove_inode_page+56/60>
  12:   5e                        pop    %esi
Code;  c0130097 <__remove_inode_page+57/60>
  13:   c3                        ret    


1 warning issued.  Results may not be reliable.


Hope this helps.
Anything further I can do?

Regards,
Stephan