netdev - Re: Strange Panic (Deadlock)

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Date:	Mon, 24 Dec 2007 21:23:30 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	slavon@...telecom.ru
CC:	netdev@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: Strange Panic (Deadlock)

slavon@...telecom.ru wrote, On 12/24/2007 07:18 PM:

> Hello again.
> Its bug depend to
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4aae07025265151e3f7041dfbf0f529e122de1d8
> ?


Hello Vyacheslav!

I wonder why do you think there is such a dependency, and why do you report
timer.c bug to netdev after all? I added some CCs here, but IMHO you would
better open a new bug at bugzilla.kernel.org, adding some more details like
.config, and reply back to this thread with the bug's number. BTW, if it's
patched by Gentoo or otherwise, you should try and report on 'vanilla' one
only.

Regards,
Jarek P.

> Its very critical bug to us. This PC must be HA. Server place so far  
> for me to go and reboot server. I go to it 1-3 times in week =(
> Please help to fix it =)
> 
>> Hello all. Some time machine freeze. No information on monitor. No
>> rebooting on sysctl "kernel.panic".
>> Any idea?
>>
>> Catched by netconsole:
>> [91922.085864] ------------[ cut here ]------------
>> [91922.085975] kernel BUG at kernel/timer.c:606!
>> [91922.086058] invalid opcode: 0000 [#1]
>> [91922.086127] SMP
>> [91922.086201] Modules linked in: netconsole cls_u32 sch_sfq sch_htb
>> xt_tcpudp iptable_filter ip_tables x_tables i2c_i801 i2c_core
>> [91922.086386] CPU:    1
>> [91922.086387] EIP:    0060:[<c0127387>]    Not tainted VLI
>> [91922.086389] EFLAGS: 00010087   (2.6.23-gentoo-r4-fw #4)
>> [91922.086600] EIP is at cascade+0x34/0x4f
>> [91922.086669] eax: c0452200   ebx: f450408c   ecx: 00000022   edx: f3c6e08c
>> [91922.086740] esi: 00000022   edi: c21ce000   ebp: 00000001   esp: c21c3ef8
>> [91922.086815] ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
>> [91922.086885] Process swapper (pid: 0, ti=c21c2000 task=c21af000
>> task.ti=c21c2000)
>> [91922.086954] Stack: f3c6e08c c21bfb74 00000000 c21ce000 0000000a
>> c012767a c21af000 00000001
>> [91922.087119]        c21c3f18 c0106963 c21c3f68 00000001 00000021
>> c03c0b08 0000000a c0124556
>> [91922.087285]        00000046 00000000 c21c2008 00000000 c01245ec
>> c2015120 c0114a11 00000046
>> [91922.087451] Call Trace:
>> [91922.087586]  [<c012767a>] run_timer_softirq+0x51/0x154
>> [91922.087669]  [<c0106963>] profile_pc+0x21/0x46
>> [91922.087752]  [<c0124556>] __do_softirq+0x5d/0xc1
>> [91922.087833]  [<c01245ec>] do_softirq+0x32/0x36
>> [91922.087915]  [<c0114a11>] smp_apic_timer_interrupt+0x74/0x80
>> [91922.087997]  [<c010484c>] apic_timer_interrupt+0x28/0x30
>> [91922.088076]  [<c0102255>] mwait_idle_with_hints+0x3b/0x3f
>> [91922.088162]  [<c0102259>] mwait_idle+0x0/0xa
>> [91922.088237]  [<c0102398>] cpu_idle+0x91/0xaa
>> [91922.088319]  =======================
>> [91922.088390] Code: 08 8d 04 ca 8b 10 89 62 04 89 14 24 8b 50 04 89 22
>> 89 00 89 54 24 04 8b 14 24 89 40 04 8b 1a eb 19 8b 42 14 83 e0 fe 39 f8
>> 74 04 <0f> 0b eb fe 89 f8 e8 d8 fe ff ff 89 da 8b 1b 39 e2 75 e3 59 89
>> [91922.088864] EIP: [<c0127387>] cascade+0x34/0x4f SS:ESP 0068:c21c3ef8
>>
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> 
> 
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