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SubjectRe: USB misbehavior causes system hang
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.


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