Re: nvidia kld panic with debug kernel

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
> ===================================================================
> 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
> _at__at_ -363,6 +363,7 _at__at_
>  #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 
should add this spinlock exclude, I posted this error because somewhere 
between early BETA4 and late BETA4 I could run the nvidia driver with 
debug kernels without this panic. Short before BETA5 this changed back to 
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 
which reflects a bug I hope I could help.

Thanks,

-Harry