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From: Eric Buddington <>
To: Pete Zaitcev <>
Subject: Re: USB misbehavior causes system hang
Date: Thu, 01 Mar 2007 08:39:07 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, Feb 27, 2007 at 01:49:40PM -0800, Pete Zaitcev wrote:
> However, the main issue here is the OOM with all the dirty data.
> We saw that before. For some weird reason, ext3 is especially good
> at producing the immense amounts of write-out. Are you on ext3 or
> VFAT on that drive?


> Please try to find the CPU traces by hitting SysRq-w, SysRq-p. CPU
> is looping under a lock somewhere and eventually it cases the watchdog
> to trigger. It may be a USB issue, maybe a VM issue. I can't tell
> until we get stack traces.

I can log the dmesg's via netconsole, but I'm often not at the
computer to use SysRq. I've just discovered /proc/sysrq-trigger, which
I can maybe use from a script that watches dmesg. I'll report back if
I can catch the dumps.


  reply	other threads:[~2007-03-01 13:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-27 14:06 Eric Buddington
2007-02-27 14:15 ` Oliver Neukum
2007-02-27 21:49 ` Pete Zaitcev
2007-03-01 13:39   ` Eric Buddington [this message]
2007-03-05 10:17 ` Andrew Morton
2007-03-05 16:55   ` Eric Buddington

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