page fault in propagate_priority

[John Baldwin]

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