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* Kernel 2.4.19 Oops error
@ 2002-09-12  3:23 Syam Sundar V Appala
  2002-09-13  9:59 ` Richard Zidlicky
  0 siblings, 1 reply; 6+ messages in thread
From: Syam Sundar V Appala @ 2002-09-12  3:23 UTC (permalink / raw)
  To: linux-kernel; +Cc: syam

Hello,
I am relatively new to linux and I am facing the following problem. Can
someone explain what is going on?

Oops:
---
EXT2-fs error (device ide0(3,1)): ext2_check_page: bad entry in directory
#21179
6: unaligned directory entry - offset=0, inode=4294967295, rec_len=65535,
name_l
en=255
Unable to handle kernel NULL pointer dereference at virtual address
00000003
 printing eip:
c0112b23
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c0112b23>]    Not tainted
EFLAGS: 00010286
eax: c0fe2000   ebx: cfc66000   ecx: 00000000   edx: ffffffff
esi: cfc665a0   edi: c0fe25a0   ebp: c0fe2000   esp: cfc67f78
ds: 0018   es: 0018   ss: 0018
Process rpm (pid: 47, stackpage=cfc67000)
Stack: fffffff5 cfffcba0 bfffe1d8 c013b723 c013b73f 00000013 cfffcba0
cfff03a0
       00000206 cfc66000 08532ed8 00000001 bfffe1e8 c01073e5 00000011
bfffe1dc
       cfc67fc4 00000000 c01087eb 00000000 00000001 00000001 08532ed8
00000001
Call Trace:    [<c013b723>] [<c013b73f>] [<c01073e5>] [<c01087eb>]

Code: 8b 42 04 3b 85 18 02 00 00 72 52 f6 83 d6 01 00 00 20 74 0e


Ksymoops output:
---------------
bash-2.05a# ksymoops -v vmlinux -k /proc/ksyms -m System.map crash
ksymoops 2.4.5 on i686 2.4.19.  Options used
     -v vmlinux (specified)
     -k /proc/ksyms (specified)
     -l /proc/modules (default)
     -o /lib/modules/2.4.19/ (default)
     -m System.map (specified)

No modules in ksyms, skipping objects
Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod
file?
Unable to handle kernel NULL pointer dereference at virtual address
00000003
c0112b23
*pde = 00000000
Oops: 0000
CPU:    0
EIP:    0010:[<c0112b23>]    Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286
eax: c0fe2000   ebx: cfc66000   ecx: 00000000   edx: ffffffff
esi: cfc665a0   edi: c0fe25a0   ebp: c0fe2000   esp: cfc67f78
ds: 0018   es: 0018   ss: 0018
Process rpm (pid: 47, stackpage=cfc67000)
Stack: fffffff5 cfffcba0 bfffe1d8 c013b723 c013b73f 00000013 cfffcba0
cfff03a0
       00000206 cfc66000 08532ed8 00000001 bfffe1e8 c01073e5 00000011
bfffe1dc
       cfc67fc4 00000000 c01087eb 00000000 00000001 00000001 08532ed8
00000001
Call Trace:    [<c013b723>] [<c013b73f>] [<c01073e5>] [<c01087eb>]
Code: 8b 42 04 3b 85 18 02 00 00 72 52 f6 83 d6 01 00 00 20 74 0e


>>EIP; c0112b23 <do_fork+83/730>   <=====

>>eax; c0fe2000 <END_OF_CODE+d810e4/????>
>>ebx; cfc66000 <END_OF_CODE+fa050e4/????>
>>edx; ffffffff <END_OF_CODE+3fd9f0e3/????>
>>esi; cfc665a0 <END_OF_CODE+fa05684/????>
>>edi; c0fe25a0 <END_OF_CODE+d81684/????>
>>ebp; c0fe2000 <END_OF_CODE+d810e4/????>
>>esp; cfc67f78 <END_OF_CODE+fa0705c/????>

Trace; c013b723 <dupfd+23/60>
Trace; c013b73f <dupfd+3f/60>
Trace; c01073e5 <sys_fork+15/20>
Trace; c01087eb <system_call+33/38>

Code;  c0112b23 <do_fork+83/730>
00000000 <_EIP>:
Code;  c0112b23 <do_fork+83/730>   <=====
   0:   8b 42 04                  mov    0x4(%edx),%eax   <=====
Code;  c0112b26 <do_fork+86/730>
   3:   3b 85 18 02 00 00         cmp    0x218(%ebp),%eax
Code;  c0112b2c <do_fork+8c/730>
   9:   72 52                     jb     5d <_EIP+0x5d> c0112b80
<do_fork+e0/730>
Code;  c0112b2e <do_fork+8e/730>
   b:   f6 83 d6 01 00 00 20      testb  $0x20,0x1d6(%ebx)
Code;  c0112b35 <do_fork+95/730>
  12:   74 0e                     je     22 <_EIP+0x22> c0112b45
<do_fork+a5/730>


1 warning issued.  Results may not be reliable.


Objdump  -d kernel/fork.o:
-------------------------
     998:       c7 04 24 ff ff ff ff    movl   $0xffffffff,(%esp,1)
     99f:       74 12                   je     9b3 <do_fork+0x43>
     9a1:       b8 00 e0 ff ff          mov    $0xffffe000,%eax
     9a6:       21 e0                   and    %esp,%eax
     9a8:       8b 58 7c                mov    0x7c(%eax),%ebx
     9ab:       85 db                   test   %ebx,%ebx
     9ad:       0f 85 0c 06 00 00       jne    fbf <do_fork+0x64f>
     9b3:       c7 04 24 f4 ff ff ff    movl   $0xfffffff4,(%esp,1)
     9ba:       ba 01 00 00 00          mov    $0x1,%edx
     9bf:       b8 f0 01 00 00          mov    $0x1f0,%eax
     9c4:       e8 fc ff ff ff          call   9c5 <do_fork+0x55>
     9c9:       89 c5                   mov    %eax,%ebp
     9cb:       85 ed                   test   %ebp,%ebp
     9cd:       0f 84 ec 05 00 00       je     fbf <do_fork+0x64f>
     9d3:       bb 00 e0 ff ff          mov    $0xffffe000,%ebx
     9d8:       21 e3                   and    %esp,%ebx
     9da:       fc                      cld
     9db:       b9 68 01 00 00          mov    $0x168,%ecx
     9e0:       89 ef                   mov    %ebp,%edi
     9e2:       89 de                   mov    %ebx,%esi
     9e4:       f3 a5                   repz movsl %ds:(%esi),%es:(%edi)
     9e6:       c7 04 24 f5 ff ff ff    movl   $0xfffffff5,(%esp,1)
     9ed:       8b 95 e4 01 00 00       mov    0x1e4(%ebp),%edx
=>   9f3:       8b 42 04                mov    0x4(%edx),%eax



Thanks,
Syam
----


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Kernel 2.4.19 Oops error
  2002-09-12  3:23 Kernel 2.4.19 Oops error Syam Sundar V Appala
@ 2002-09-13  9:59 ` Richard Zidlicky
  2002-09-13 15:01   ` syam
  0 siblings, 1 reply; 6+ messages in thread
From: Richard Zidlicky @ 2002-09-13  9:59 UTC (permalink / raw)
  To: Syam Sundar V Appala; +Cc: linux-kernel

On Wed, Sep 11, 2002 at 08:23:09PM -0700, Syam Sundar V Appala wrote:
> Hello,
> I am relatively new to linux and I am facing the following problem. Can
> someone explain what is going on?
> 
> Oops:
> ---
> EXT2-fs error (device ide0(3,1)): ext2_check_page: bad entry in directory
> #21179
> 6: unaligned directory entry - offset=0, inode=4294967295, rec_len=65535,
> name_l
> en=255

some inode was ovewritten by 0xfffffff...., look back in the log for other
strange messages. Run memtest.

Richard


^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: Kernel 2.4.19 Oops error
  2002-09-13  9:59 ` Richard Zidlicky
@ 2002-09-13 15:01   ` syam
  2002-09-13 15:12     ` Thunder from the hill
  2002-09-13 22:29     ` Richard Zidlicky
  0 siblings, 2 replies; 6+ messages in thread
From: syam @ 2002-09-13 15:01 UTC (permalink / raw)
  To: Richard Zidlicky; +Cc: linux-kernel

Hi Richard,
Will running memtest fix the corruption? How to avoid such corruptions for
kernel 2.4.19?

Regards,
Syam

-----Original Message-----
From: Richard Zidlicky [mailto:rz@linux-m68k.org]
Sent: Friday, September 13, 2002 3:00 AM
To: Syam Sundar V Appala
Cc: linux-kernel@vger.kernel.org
Subject: Re: Kernel 2.4.19 Oops error


On Wed, Sep 11, 2002 at 08:23:09PM -0700, Syam Sundar V Appala wrote:
> Hello,
> I am relatively new to linux and I am facing the following problem. Can
> someone explain what is going on?
>
> Oops:
> ---
> EXT2-fs error (device ide0(3,1)): ext2_check_page: bad entry in directory
> #21179
> 6: unaligned directory entry - offset=0, inode=4294967295, rec_len=65535,
> name_l
> en=255

some inode was ovewritten by 0xfffffff...., look back in the log for other
strange messages. Run memtest.

Richard


^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: Kernel 2.4.19 Oops error
  2002-09-13 15:01   ` syam
@ 2002-09-13 15:12     ` Thunder from the hill
  2002-09-15 16:48       ` syam
  2002-09-13 22:29     ` Richard Zidlicky
  1 sibling, 1 reply; 6+ messages in thread
From: Thunder from the hill @ 2002-09-13 15:12 UTC (permalink / raw)
  To: syam; +Cc: Richard Zidlicky, linux-kernel

Hi,

On Fri, 13 Sep 2002, syam wrote:
> Will running memtest fix the corruption?

No, but it will detect holes in your memory. Sometimes this bad memory can 
be blacklisted, but badness is known to spread...

If the memory is just too hot, youre well off. Otherwise you might have to 
get some new.


			Thunder
-- 
--./../...-/. -.--/---/..-/.-./..././.-../..-. .---/..-/.../- .-
--/../-./..-/-/./--..-- ../.----./.-../.-.. --./../...-/. -.--/---/..-
.- -/---/--/---/.-./.-./---/.--/.-.-.-
--./.-/-.../.-./.././.-../.-.-.-


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: Kernel 2.4.19 Oops error
  2002-09-13 15:01   ` syam
  2002-09-13 15:12     ` Thunder from the hill
@ 2002-09-13 22:29     ` Richard Zidlicky
  1 sibling, 0 replies; 6+ messages in thread
From: Richard Zidlicky @ 2002-09-13 22:29 UTC (permalink / raw)
  To: syam; +Cc: linux-kernel

On Fri, Sep 13, 2002 at 08:01:16AM -0700, syam wrote:
> Hi Richard,
> Will running memtest fix the corruption? How to avoid such corruptions for
> kernel 2.4.19?

the kind of error you have seen is very often caused by hardware 
problems, you need to find out what is at fault.

Richard

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: Kernel 2.4.19 Oops error
  2002-09-13 15:12     ` Thunder from the hill
@ 2002-09-15 16:48       ` syam
  0 siblings, 0 replies; 6+ messages in thread
From: syam @ 2002-09-15 16:48 UTC (permalink / raw)
  To: Thunder from the hill; +Cc: Richard Zidlicky, linux-kernel

I ran memtest on my system and it didn't complain about any holes in it. I
still keep getting ext2_check_page() error. Any suggestions?

- Syam

-----Original Message-----
From: Thunder from the hill [mailto:thunder@lightweight.ods.org]
Sent: Friday, September 13, 2002 8:13 AM
To: syam
Cc: Richard Zidlicky; linux-kernel@vger.kernel.org
Subject: RE: Kernel 2.4.19 Oops error


Hi,

On Fri, 13 Sep 2002, syam wrote:
> Will running memtest fix the corruption?

No, but it will detect holes in your memory. Sometimes this bad memory can
be blacklisted, but badness is known to spread...

If the memory is just too hot, youre well off. Otherwise you might have to
get some new.


			Thunder
--
--./../...-/. -.--/---/..-/.-./..././.-../..-. .---/..-/.../- .-
--/../-./..-/-/./--..-- ../.----./.-../.-.. --./../...-/. -.--/---/..-
.- -/---/--/---/.-./.-./---/.--/.-.-.-
--./.-/-.../.-./.././.-../.-.-.-


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2002-09-15 16:44 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-09-12  3:23 Kernel 2.4.19 Oops error Syam Sundar V Appala
2002-09-13  9:59 ` Richard Zidlicky
2002-09-13 15:01   ` syam
2002-09-13 15:12     ` Thunder from the hill
2002-09-15 16:48       ` syam
2002-09-13 22:29     ` Richard Zidlicky

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