On 06-Feb-01 Andrea Campi wrote:
>> Problem: I can't do anything at db> prompt? Backtrace is doing nothing
>> except
>> triggering a new register dump (another fault I assume).
> New kernel, new panic, new info:
> db> witness_list
>         "Giant" (0xc0279be0) locked at ../../i386/isa/ithread.c:191
> db> show registers
> cs              0x8
> ds              0x10
> es              0x10
> fs              0x18
> ss              0x10
> eax             0xdeadc0de
> ecx             0xc59eb4b4
> edx             0xc0279be0  Giant
> ebx             0xc0a7a480  _end+0x36f8
> esp             0xc65faf68
> ebp             0xc65faf78
> esi             0xc0a7a4e0  _end+0x3758
> edi             0xc01fc998  ithd_loop
> eax             0xdeadc0de
> efl             0x10282
> Besides the obvious need to fix this one problem, shouldn't we
> ASSERT ih->ih_handler != NULL before calling it?

It isn't null in this case, it is 0xdeadc0de.  Can you try a pre-preemption
kernel and see if that fixes it?

> Bye,
>       Andrea


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

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