Re: 2.6.39: crash w/threadirqs option enabled

From: Justin Piszcz
Date: Thu May 26 2011 - 12:30:20 EST




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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