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Date: Sat, 23 Oct 2004 00:58:44 -0500
From: Ryan Sommers <ryans@gamersimpact.com>
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To: Garance A Drosihn <drosih@rpi.edu>
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cc: Scott Long <scottl@freebsd.org>
Subject: Re: Panic during 'shutdown -p' on 5.3-RC1
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Garance A Drosihn wrote:

> #25 0xc05899e5 in ithread_loop (arg=0xc2141d80)
>     at /usr/src/sys/kern/kern_intr.c:547
> #26 0xc0588a95 in fork_exit (callout=0xc058988c <ithread_loop>,
>     arg=0xc2141d80, frame=0xe2281d48) at 
> /usr/src/sys/kern/kern_fork.c:811
> #27 0xc06f465c in fork_trampoline () at 
> /usr/src/sys/i386/i386/exception.s:209


Are you using ULE with preemption by chance?

-- 
Ryan Sommers
ryans@gamersimpact.com