Re: Swapoff w/regular file causes Oops

From: Steve G (linux_4ever@yahoo.com)
Date: Thu Jun 05 2003 - 16:13:28 EST


>You didn't run that through ksymoops...

Did you try the program? Does it Oops for you?

Here's the info from ksymoops:

>>EIP; c0149985 <path_release+15/30> <=====
                                                           
                    
>>eax; c1ac6f84 <_end+171cf04/10462fe0>
>>ebx; ce261f90 <_end+deb7f10/10462fe0>
>>ecx; ffffffff <END_OF_CODE+2f685ba0/????>
>>edx; 00200246 Before first symbol
>>edi; ffffffea <END_OF_CODE+2f685b8b/????>
>>ebp; c503f4e0 <_end+4c95460/10462fe0>
>>esp; ce261f84 <_end+deb7f04/10462fe0>
                                                           
                    
Trace; c013a831 <sys_swapoff+191/260>
Trace; c013f2f0 <sys_open+70/80>
Trace; c0109103 <system_call+33/40>
                                                           
                    
Code; c0149985 <path_release+15/30>
00000000 <_EIP>:
Code; c0149985 <path_release+15/30> <=====
   0: ff 4a 28 decl 0x28(%edx)
<=====
Code; c0149988 <path_release+18/30>
   3: 0f 94 c0 sete %al
Code; c014998b <path_release+1b/30>
   6: 84 c0 test %al,%al
Code; c014998d <path_release+1d/30>
   8: 75 02 jne c <_EIP+0xc>
Code; c014998f <path_release+1f/30>
   a: 5b pop %ebx
Code; c0149990 <path_release+20/30>
   b: c3 ret
Code; c0149991 <path_release+21/30>
   c: 89 54 24 08 mov %edx,0x8(%esp,1)
Code; c0149995 <path_release+25/30>
  10: 5b pop %ebx
Code; c0149996 <path_release+26/30>
  11: e9 65 c3 00 00 jmp c37b <_EIP+0xc37b>
                                                           
                    
                                                           
                 2 warnings and 3 errors issued. Results
may not be reliable.

Curiously, the brand new RH 2.4.20-18.9 kernel produces 2
Oops from the one program. When I run it from a gnome
terminal, this is what comes immediately after the first
Oops:

>>EIP; c0134973 <__kmem_cache_alloc+73/e0> <=====
                                                           
                    
>>eax; 84ac6f83 Before first symbol
>>ebx; c1a61000 <_end+16b6f80/10462fe0>
>>ecx; c1ac1f20 <_end+1717ea0/10462fe0>
>>edx; c1ac6f8c <_end+171cf0c/10462fe0>
>>esi; c1ac6f84 <_end+171cf04/10462fe0>
>>edi; 00200246 Before first symbol
>>ebp; c1a61000 <_end+16b6f80/10462fe0>
>>esp; c8caff40 <_end+8905ec0/10462fe0>
                                                           
                    
Trace; c013432f <kmem_cache_alloc+f/20>
Trace; c014972d <getname+1d/b0>
Trace; c014a5ee <__user_walk+e/40>
Trace; c0146aa6 <sys_readlink+26/90>
Trace; c011e9a2 <sys_gettimeofday+22/60>
Trace; c0109103 <system_call+33/40>
                                                           
                    Code; c0134973
<__kmem_cache_alloc+73/e0>
00000000 <_EIP>:
Code; c0134973 <__kmem_cache_alloc+73/e0> <=====
   0: 89 48 04 mov %ecx,0x4(%eax)
<=====
Code; c0134976 <__kmem_cache_alloc+76/e0>
   3: 89 71 04 mov %esi,0x4(%ecx)
Code; c0134979 <__kmem_cache_alloc+79/e0>
   6: eb d9 jmp ffffffe1
<_EIP+0xffffffe1>
Code; c013497b <__kmem_cache_alloc+7b/e0>
   8: 8d 46 10 lea 0x10(%esi),%eax
Code; c013497e <__kmem_cache_alloc+7e/e0>
   b: 8b 4e 10 mov 0x10(%esi),%ecx
Code; c0134981 <__kmem_cache_alloc+81/e0>
   e: 39 c1 cmp %eax,%ecx
Code; c0134983 <__kmem_cache_alloc+83/e0>
  10: 74 20 je 32 <_EIP+0x32>
Code; c0134985 <__kmem_cache_alloc+85/e0>
  12: 8b 41 00 mov 0x0(%ecx),%eax
                                                           
                    
                                                           
                   2 warnings and 3 errors issued. Results
may not be reliable.

It would be nice to get confirmation as to this being a
generic problem or just a RH problem. Can someone running
another distro or plain vanilla kernel > 2.4.18 give the
program a try?
http://marc.theaimsgroup.com/?l=linux-kernel&m=105388560111905&w=2

Thanks,
Steve Grubb

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