Re: 'Ghost' vr0 causes panic

[Stephen Borrill <netbsd%precedence.co.uk@localhost>]

On Wed, 7 Jan 2009, Jonathan A. Kollasch wrote:
> On Wed, Jan 07, 2009 at 12:04:02PM +0000, Stephen Borrill wrote:
> > There's a revision of motherboard we use in our products that has a
> > 'ghost' vr0 on it. I guess some but not all of the supporting logic is
> > wired. It shows up on the BIOS post and in NetBSD 4 and earlier, vr0
> > partly attaches but has a mac address of 00:00:00:00:00:00. With NetBSD
> > 5, it panics at boot time:
> >
> > vr0 at pci0 dev 18 function 0: VIA VT6102 (Rhine II) 10/100 Ethernet
> > panic: mpacpi_findintr_linkdev: irq mismatch
> > fatal breakpoint trap in supervisor mode
> > trap type 1 code 0 eip c053402c cs 8 eflags 246 cr2 0 ilevel 8
> > Stopped in pid 0.1 (system) at  netbsd:breakpoint+0x4:  popl    %ebp
>
> This is sounds something like kern/38540, but it could be different.

Sounds very much like it.

I've removed the panic and replaced it by a diagnostic message (as 
suggested by Christos), so see whether that helps.

cvs rdiff -r1.73 -r1.74 src/sys/arch/x86/x86/mpacpi.c

--
Stephen