Subject: Re: sun4m install problem (kernel panic)
To: Pavlin Ivanov Radoslavov <pavlin@catarina.usc.edu>
From: Aaron Brown <abrown@eecs.harvard.edu>
List: port-sparc
Date: 10/16/1996 22:57:04
> Hi!
> 
> I am trying to install a SparcStation10(sun4m) machine to boot from
> the net, but get the following error: 
> 
> trap type 0x7: pc=f8024e24 npc=f8024e28 psr=41401fc7<EF,S,PS>
> panic: alignment fault
> halted
> 
> Any ideas how to fix it?
> Thanks

How far does it get before this happens? Does it print the kernel banner?
Probe the devices? Fork init?

Does your SS10 have a SuperSPARC processor? Does it have a "MXCC" (1-MB
level-2 "ecache")? If it is a hypersparc, it won't work. If it is a super-
sparc without a MXCC, it also won't work under NetBSD-1.2 unless you add
a hack to the kernel to disable the cache...[perhaps this should go into
the first 1.2 patch...]

--Aaron