On 05-Nov-2002 Andrew Gallatin wrote:
> 
> Tom Ponsford writes:
>  > Hi All,
>  > 
>  > I'm getting a machine check on my new-toy:   an Alphaserver 2100A 4/275 RM.
>  > 
>  > It  boots and runs 4.6.2 fine with a single cpu. But after I supped the 
>  > current 5.0 sources from
>  > 10/29/2002 17:39 and did a buildworld and a Generic buildkernel, (plus 
>  > all the
>  > other steps in UPDATING with the exception of installing world) But after an
>  > installkernel, I get a machine check, just after the kernel loads and boots.
>  > 
> 
> Can you build a non-SMP kernel and see if that boots please?
> 
> Nobody has ever run an SMP kernel on a 2100A, AFAIK.  The 2100A has
> problems with multiple machine checks being reported for each machine
> check triggered.  I wonder if you're getting a machine check for each
> CPU.  Hmmm..

Remember that you had to disable machine checks when firing up the CPU's
on the 2100:

        /* lower the ipl and take any pending machine check */
        mc_expected = 1;
        alpha_mb(); alpha_mb();
        alpha_pal_wrmces(7);
        (void)alpha_pal_swpipl(ALPHA_PSL_IPL_HIGH);
        mc_expected = 0;

Maybe this is relevant to that?

-- 

John Baldwin <[EMAIL PROTECTED]>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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