Same problem, new year 2100A machine check

[John Baldwin]

On Tuesday 27 January 2004 07:50 pm, Andrew Gallatin wrote:
> Tom Ponsford writes:
>  > It DOES NOT boot:
>  >
>  > FreeBSD 4.xx MP kernel -machine check as it probes PCI/EISA bus
>
> Interesting.  FreeBSD 4 never supported MP on alpha.
>
>  > FreeBSD 5.0, 5.2 uniprocessor kernel or MP kernel--machine check as it
>  > probes
>
> Here are some things to do/try.
>
> 1) Build a kernel with ddb and get a stack trace.
> When the machine crashes and you land at the "db>" prompt, type 'tr'
>
> This might not be incredibly helpful because machine checks
> are not synchronous, but it may narrow things down a little bit.
>
> 2) Disable all but CPU0 from the SRM console.  There's a bitmask
> you can set from SRM (I don't remember off the top of my head what it
> is, but its probably set to 0xfff now).

You can also do 'kern.smp.disabled=1'

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org