Andrew Morton wrote:
> On Sun, 02 Jul 2006 11:03:16 +0100
> Andy Whitcroft <[email protected]> wrote:
>
>
>>Seems that we have some kind of schedular balance panic, I want to say
>>back as this seems very familiar. Seems to be affecting the multi-node
>>NUMA-Q systems here. The single node ones appear unaffected.
>>
>>Nothing jumps out of the patch list. Any suggestions as to what to rip
>>out :)
>>
>>-apw
>>
>>divide error: 0000 [#1]
>>8K_STACKS SMP
>>last sysfs file:
>>Modules linked in:
>>CPU: 3
>>EIP: 0060:[<c0112b6e>] Not tainted VLI
>>EFLAGS: 00010046 (2.6.17-mm5-autokern1 #1)
>>EIP is at find_busiest_group+0x1a3/0x47c
>>eax: 00000000 ebx: 00000007 ecx: 00000000 edx: 00000000
>>esi: 00000000 edi: e7677264 ebp: e74a3ec8 esp: e74a3e58
>>ds: 007b es: 007b ss: 0068
>>Process swapper (pid: 0, ti=e74a2000 task=e7485030 task.ti=e74a2000)
>>Stack: e7677264 00000010 c0119020 00000000 00000000 00000000 00000000
>>00000000
>> ffffffff 00000000 00000000 00000001 00000001 00000001 00000080
>>00000000
>> 00000000 00000200 00000020 00000080 00000000 00000000 e7677260
>>c13dc960
>>Call Trace:
>> [<c0119020>] vprintk+0x5f/0x213
>> [<c0112efb>] load_balance+0x54/0x1d6
>> [<c011332d>] rebalance_tick+0xc5/0xe3
>> [<c01137a3>] scheduler_tick+0x2cb/0x2d3
>> [<c01215b4>] update_process_times+0x51/0x5d
>> [<c010c224>] smp_apic_timer_interrupt+0x5a/0x61
>> [<c0102d5b>] apic_timer_interrupt+0x1f/0x24
>> [<c01006c0>] default_idle+0x0/0x59
>> [<c01006f1>] default_idle+0x31/0x59
>> [<c0100791>] cpu_idle+0x64/0x79
>>Code: 00 5b 83 f8 1f 89 c6 5f 0f 8e 63 ff ff ff 8b 45 e0 8b 55 e8 01 45
>>dc 8b 4a 08 89 c2 01 4d d4 c1 e2 07 89 d0 31 d2 89 ce c1 ee 07 <f7> f1
>>83 7d 9c 00 89 45 e0 74 17 89 45 d8 8b 55 e8 8b 4d a4 8b
>>EIP: [<c0112b6e>] find_busiest_group+0x1a3/0x47c SS:ESP 0068:e74a3e58
>> <0>Kernel panic - not syncing: Fatal exception in interrupt
>
>
> Well there are only a handful of divides in find_busiest_group(). Wanna
> have a poke around in gdb and work out which one you're hitting?
Sure I'll see what information I can get on this one.
-apw
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