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    SubjectSS-10 -> Ultra Question...

    Well, those of you who have seen my postings before are probably familiar
    with my Sparc-32 SMP stability problems.

    To summarize, 4/670MP with quad Ross Hypersparc CPU's, 384MB of RAM,
    and a 10-base-T/SCSI combo card runs totally stable under 2.2.13 as long as I
    don't try to turn up two ethernet interfaces.

    SS-10 on the other hand won't run for more than a few hours before
    spin_lock hell. This is moving the exact same CPU modules, video card, and
    SCSI controller that are completely stable in the 4/670MP.

    Today I tried two things; I got an SS-20 chassis and tried that.
    Unfortunately, same spin_lock() hell, it seemed to happen even faster actually,
    longest uptime was 59 minutes.

    When I've bothered David about this before, answer I got was "Get an
    Ultra".. Ok, maybe that's truncated a bit but that's what it amounted to. So
    I got an Ultra-1. Probably not a screamer but if I can find a stable platform
    that doesn't raise the room temperature ten degrees I'll be elated.

    I was under the impression that the same kernel that would boot on an
    SS-10 would also boot on the Ultras. So I hooked up the disks that were
    connected to the 4/670MP / SS-10 / SS-20, to the Ultra-1 and attempted to boot.

    The cursor spins but then before even getting the SILO prompt I get:

    Fast Data Access MMU Miss

    ... and it returns to the PROM prompt.

    I tried booting a RedHat 6.0 CD and it boots fine. But I don't want to
    wipe out everything I have and start over. Since it doesn't even get to the
    SILO prompt I assume this is SILO related?

    Can anybody tell me what I need to do to get this machine to boot and run
    or do I have to re-install Linux and recompile all of my software?



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