Messages in this thread | | | Date | Mon, 21 Jan 2002 10:05:44 -0800 (PST) | From | Vasu Vuppala <> | Subject | random oops crashes |
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Hi,
Our firewall has been crashing a lot recently; it had been working fine for months. We replaced it with another machine but the problem remains. So it is definitely not a hardware issue. The crashes are very random. The machine would run for weeks without any crash but then will crash 10-15 times in a day.
ksymoops indicates that the crash always occurs at the same function (_free_pages) and instruction (lock decl 0x14(%ecx)). ksymoops output is attached.
The machine has minimal software on it. It only runs: sshd, crond, klogd, mingetty, syslogd, apart from kernel daemons and init. It uses iptables for NAT.
Info about the machine: Distribution: Red Hat 7.1 Kernel: 2.4.2-2smp
The two PCs that were used: Dell Dimension L667r, and DigiLink. Processor: Pentium III Memory: 128MB
Can anyone tell us what the problem is. Plese let me know if you need more information.
Thank you.
- vasu
__________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ksymoops 2.4.0 on i686 2.4.2-2smp. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.2-2smp/ (default) -m /boot/System.map-2.4.2-2smp (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.
Warning (compare_maps): ksyms_base symbol __VERSIONED_SYMBOL(shmem_file_setup) not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01bba60, System.map says c015d2a0. Ignoring ksyms_base entry Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore says c882ec60, /lib/modules/2.4.2-2smp/kernel/drivers/usb/usbcore.o says c882e780. Ignoring /lib/modules/2.4.2-2smp/kernel/drivers/usb/usbcore.o entry Unable to handle kernel paging request at virtual address d70f589b c0133c32 Oops: 0002 CPU: 0 EIP: 0010:[<c0133c32>] Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010202 eax: d70f5887 ebx: 00000001 ecx: d70f5887 edx: 00000000 esi: c1397bc0 edi: c4d36980 ebp: c4d36880 esp: c0293ccc ds: 0018 es: 0018 ss: 0018 Process swapper (pid: 0, stackpage=c0293000) Stack: c01c49fe c4d36980 c1397bc0 c01c5025 c1397bc0 00000060 c1397bc0 c425fc00 00000000 c7dffc20 c01c8738 c1397bc0 00000002 0000003c c1397bc0 c7dffc20 c01cc696 c0292000 0000003c c1397bc0 c7dffc20 c01cc716 c1397bc0 c425fc00 Call Trace: [<c01c49fe>] [<c01c5025>] [<c01c8738>] [<c01cc696>] [<c01cc716>] [<c 01dce20>] [<c01cea2e>] [<c01dcecb>] [<c01dce20>] [<c01ced33>] [<c01dce20>] [<c01ced6a>] [<c01da3 [<c8845740>] [<c01da427>] [<c01ced6a>] [<c01da348>] [<c01da3b0>] [<c01d94 [<c01d9350>] [<c01ced6a>] [<c01f62f4>] [<c01c8a2c>] [<c01d9196>] [<c01d93 [<c01c8ebb>] [<c010aa1e>] [<c011d51b>] [<c010ac65>] [<c0107290>] [<c01072 [<c0107290>] [<c01072bc>] [<c0107342>] [<c0105000>] [<c01001cf>] Code: f0 ff 49 14 0f 94 c0 84 c0 74 07 89 c8 e9 9c f5 ff ff c3 8d
>>EIP; c0133c32 <__free_pages+2/20> <===== Trace; c01c49fe <skb_release_data+4e/80> Trace; c01c5025 <skb_linearize+c5/130> Trace; c01c8738 <dev_queue_xmit+a8/2b0> Trace; c01cc696 <neigh_resolve_output+f6/1f0> Trace; c01cc716 <neigh_resolve_output+176/1f0> Code; c0133c32 <__free_pages+2/20> 00000000 <_EIP>: Code; c0133c32 <__free_pages+2/20> <===== 0: f0 ff 49 14 lock decl 0x14(%ecx) <===== Code; c0133c36 <__free_pages+6/20> 4: 0f 94 c0 sete %al Code; c0133c39 <__free_pages+9/20> 7: 84 c0 test %al,%al Code; c0133c3b <__free_pages+b/20> 9: 74 07 je 12 <_EIP+0x12> c0133c44 <__free_pages+14/20> Code; c0133c3d <__free_pages+d/20> b: 89 c8 mov %ecx,%eax Code; c0133c3f <__free_pages+f/20> d: e9 9c f5 ff ff jmp fffff5ae <_EIP+0xfffff5ae> c01331e0 <__free_pages_ok+0/380> Code; c0133c44 <__free_pages+14/20> 12: c3 ret Code; c0133c45 <__free_pages+15/20> 13: 8d 00 lea (%eax),%eax
Kernel panic: Aiee, killing interrupt handler!
4 warnings issued. Results may not be reliable.
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