Linux-kernel mailing list archive 2000-26,: Oops Trace...

# Oops Trace...

Matt Fisher (mfisher@securityportal.com)
Mon, 26 Jun 2000 10:23:22 -0700

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Hello,

I have had a variety of kernel error messages on the console this weekend.
Below is the ksymoops output of the first one. Any idea what might be causing
these or what todo to prevent them.

Matt
--------------------

ksymoops 0.7c on i686 2.2.15. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.2.15/ (default)
-m /usr/src/linux/System.map (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.

No modules in ksyms, skipping objects
Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod
file?
Unable to handle kernel paging request at virtual address 0f6ae978
current->tss.cr3 = 1f3ae000, %cr3 = 1f3ae000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c0139a03>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010293
eax: 00000000 ebx: 01ed5d2f ecx: df7a9aa0 edx: 00000000
esi: 0000000f edi: c3598330 ebp: 00000401 esp: df51be64
ds: 0018 es: 0018 ss: 0018
Process syslogd (pid: 302, process nr: 10, stackpage=df51b000)
Stack: df51bf6c 00000005 00000051 00000000 df51be90 00000000 df3b7f6c df51bed4
00000000 00000000 dfe9b200 000058b7 00000000 01ed5d2f c3598330 00000000
c0148c9c df3b7f6c 00000000 c0148ce3 df7a9800 00000000 bffff918 bffffd19
Call Trace: [<c0148c9c>] [<c0148ce3>] [<c01113b7>] [<c0122558>] [<c012e41b>]
[<c012570e>] [<c013987c>]
[<c0125821>] [<c0109ef4>]
Code: 84 24 d8 00 00 00 79 25 c7 84 24 d8 00 00 00 ff ff ff 7f 8b

>>EIP; c0139a03 <ext2_file_write+187/62c> <=====
Trace; c0148c9c <sys_recvfrom+a4/100>
Trace; c0148ce3 <sys_recvfrom+eb/100>
Trace; c01113b7 <schedule+153/280>
Trace; c0122558 <free_pages+24/28>
Trace; c012e41b <free_wait+63/6c>
Trace; c012570e <do_readv_writev+196/1d4>
Trace; c013987c <ext2_file_write+0/62c>
Trace; c0125821 <sys_writev+69/90>
Trace; c0109ef4 <system_call+34/38>
Code; c0139a03 <ext2_file_write+187/62c>
00000000 <_EIP>:
Code; c0139a03 <ext2_file_write+187/62c> <=====
0: 84 24 d8 testb %ah,(%eax,%ebx,8) <=====
Code; c0139a06 <ext2_file_write+18a/62c>
3: 00 00 addb %al,(%eax)
Code; c0139a08 <ext2_file_write+18c/62c>
5: 00 79 25 addb %bh,0x25(%ecx)
Code; c0139a0b <ext2_file_write+18f/62c>
8: c7 84 24 d8 00 00 00 movl $0x7fffffff,0xd8(%esp,1)
Code; c0139a12 <ext2_file_write+196/62c>
f: ff ff ff 7f
Code; c0139a16 <ext2_file_write+19a/62c>
13: 8b 00 movl (%eax),%eax

2 warnings issued. Results may not be reliable.

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