Date: Wed, 21 Sep 2005 23:28:17 +0200 From: Harald Schmalzbauer <harry@schmalzbauer.de> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org, Harald Schmalzbauer <harry@schmalzbauer.de> Subject: Re: nvidia kld panic with debug kernel Message-ID: <200509212328.26394@harrymail> In-Reply-To: <200509211651.09666.jhb@FreeBSD.org> References: <1127245262.32486.1.camel@akima.flintsbach.schmalzbauer.de> <200509211651.09666.jhb@FreeBSD.org>
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Am Mittwoch, 21. September 2005 22:51 CEST schrieb John Baldwin:
> 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
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> 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 },
Thanks for your attention! I don't exactly know what this does and why I=20
should add this spinlock exclude, I posted this error because somewhere=20
between early BETA4 and late BETA4 I could run the nvidia driver with=20
debug kernels without this panic. Short before BETA5 this changed back to=20
the panic I've already seen before BETA4, so I posted it here.
If it is something harmless it's safe to ignore my post, if it's something=
=20
which reflects a bug I hope I could help.
Thanks,
=2DHarry
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