linux-kernel - Re: 2.6.39: crash w/threadirqs option enabled

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Message-ID: <alpine.DEB.2.02.1105261228570.8379@p34.internal.lan>
Date:	Thu, 26 May 2011 12:30:14 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	Thomas Gleixner <tglx@...utronix.de>
cc:	linux-kernel@...r.kernel.org, Alan Piszcz <ap@...arrain.com>
Subject: Re: 2.6.39: crash w/threadirqs option enabled



On Fri, 20 May 2011, Justin Piszcz wrote:

>
>
> On Fri, 20 May 2011, Thomas Gleixner wrote:
>
>> On Fri, 20 May 2011, Justin Piszcz wrote:
>>> On Fri, 20 May 2011, Thomas Gleixner wrote:
>>>> Does it crash right away or just when doing something particular?
>>> It crashed at 2100, this is when I run a few I/O intensive processes:
>>> - backup (dump ext4 filesystem -> to a separate raid device)
>>> - backup (dump ext4 on remote host -> to separate raid device)
>>> - backup (dump xfs on remote host -> to separate raid device)
>>> 
>>> This looks like it is what caused it to crash.
>> 
>> That narrows it down somewhat, but does not give us a clue at all :(
>> 
>>>> Is the box fully dead after the crash ?
>>> The host was online and I went away for awhile, when I came back the 
>>> system
>>> had rebooted on its own (as I lost all of my X windows/etc).
>> 
>> Hmm. Did you have panic_timeout set ?
>
> Hi,
>
> No, I do not use panic_timeout or any type of watchdog that would reboot
> the system upon a lockup/crash.
>
> Justin.
>
>

Hi,

I like to be as accurate as possible, since this occurred, I've removed 
threadirqs..

Please disregard this, I also updated the BIOS on the same day (BIOS 
update + kernel update), I'm re-running w/thread irqs enabled again, and 
I'll update you if there are any issues, thanks.

(I've set the bios to factory defaults -> tweaked), we'll see what 
happens.

Justin.
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