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Date:      Tue, 28 Oct 2003 18:12:07 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Dan Nelson <dnelson@allantgroup.com>
Cc:        current@freebsd.org
Subject:   RE: page fault in propagate_priority
Message-ID:  <XFMail.20031028181207.jhb@FreeBSD.org>
In-Reply-To: <20031028224604.GA2284@dan.emsphone.com>

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On 28-Oct-2003 Dan Nelson wrote:
> 
> I've gotten the following panic twice in the last few days.  I'm pretty
> sure truss has something to do with it, since I just started trussing
> something when it paniced.  No crashdumps unfortunately, and the system
> locks up hard so I have to reset it.
> 
> The fault address is 0x24 so it looks like a null pointer dereference
> of some sort.  I've added asserts to propagate_priority any place a
> pointer to a structure is dereferenced, so if it happens again I should
> have the line number at least.
> 
> panic1 was on an Oct 15 kernel, panic2 was on an Oct 27 kernel.

It might help some if you could use gdb -k on your kernel.debug and
do 'l *propagate_priority+0x66' to see where it is dying.

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/



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