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Date: Tue, 7 Sep 2004 14:13:57 -0700
From: Marcel Moolenaar <marcel@xcllnt.net>
To: Gheorghe Ardelean <ardelean@ww.uni-erlangen.de>
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cc: freebsd-alpha@freebsd.org
Subject: Re: 5.3-BETA3 and tga...
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On Tue, Sep 07, 2004 at 10:14:00PM +0200, Gheorghe Ardelean wrote:
> 
> > tga0: <DEC TGA (21030) 2D Graphics Accelerator> mem
> > 0x88000000-0x8fffffff irq 9 at device 13.0 on pci0
> >
> > unexpected machine check:
> >
> >     mces    = 0x1
> >     vector  = 0x660
> >     param   = 0xfffffc0000006000
> >     pc      = 0xfffffc000072d214
> >     ra      = 0xfffffc0000732940
> >     curproc = 0xfffffc00008c2b70
> >         pid = 0, comm = swapper
> >
> > [thread 0]
> > Stopped at      tga_init+0x74:  and     t0,#0x1c,t1
> > <t0=0x75555555,t1=0xfffffe0000016000>

Just to make sure we're on the same page: this used to be a MMU fault
before, right?

Some background: The machine check is caused by the load prior to
the and instruction and it's this load that used to cause a MMU
fault. The load is the very first register access for the TGA card.
I'll see if newbusification makes a difference...

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel@xcllnt.net