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From: John Baldwin <jhb@FreeBSD.org>
To: freebsd-current@freebsd.org
Date: Wed, 21 Sep 2005 16:51:08 -0400
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Cc: Harald Schmalzbauer <harry@schmalzbauer.de>
Subject: Re: nvidia kld panic with debug kernel
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On Tuesday 20 September 2005 03:41 pm, Harald Schmalzbauer wrote:
> Hello,
>
> I get the following panic when using the nvidia driver with a debug
> kernel, when I disable INVARIANTS and WITNESS everything is working
> fine!
>
> Here's the trace:
>
> ACPI APIC Table: <D815EA EA81510A>
> ioapic0: Changing APIC ID to 1
> ioapic0 <Version 2.0> irqs 0-23 on motherboard
> panic: spin lock rm.mutex_mtx not in order list

You need to add an entry for "rm.mutex_mtx" to the static spin lock order list 
in sys/kern/subr_witness.c.  Something like this:

Index: subr_witness.c
===================================================================
RCS file: /usr/cvs/src/sys/kern/subr_witness.c,v
retrieving revision 1.201
diff -u -r1.201 subr_witness.c
--- subr_witness.c      15 Sep 2005 19:07:14 -0000      1.201
+++ subr_witness.c      21 Sep 2005 20:50:45 -0000
@@ -363,6 +363,7 @@
 #ifdef SMP
        { "ap boot", &lock_class_mtx_spin },
 #endif
+       { "rm.mutex_mtx", &lock_class_mtx_spin },
        { "sio", &lock_class_mtx_spin },
 #ifdef __i386__
        { "cy", &lock_class_mtx_spin },

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