Subject: Re: Panic help
To: NetBSD/vax Discussion List <port-vax@NetBSD.org>
From: None <ragge@ludd.luth.se>
List: port-vax
Date: 01/01/2005 12:47:37
> [ On Wednesday, December 22, 2004 at 19:08:04 (-0800), John Klos wrote: ]
> > Subject: Panic help
> >
> > Anyone know what can cause this?
> > 
> > panic: Machine check
> > Stack traceback :
> > 0x802c5b58: ka46_mchk+0xf(0x802c5bd8)
> 
> likley only a reported hardware error....
> 
Can also be a DMA access to nonexisting memory (kernel bug), an 
ECC-corrected memory read, or similar.  Some of the Machine checks
shouldn't cause a panic.  Unfortunately the machine check code must
be written per-cpu type, and doing it correctly is difficult because
machine checks is hard to test.

-- Ragge