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    SubjectReproducible nastiness in 2.0.3[2,3,4pre2] SMP
    Hi all,

    None of the latest 2.0 kernels seem to work in SMP on our Quad PPro boxen.
    To summarize:

    We have
    - AMI Goliath with four 200MHz 256k PPros
    - KNE100TX on 100Mbps half duplex
    - 3.2 GB IDE Quantum Fireball, firmware A0F.0800 with all hdparm options
    off except readahead
    - simple S3 video card, no X
    - user home directories are mounted from another Linux box
    - base RedHat 5.0 distribution, updated to all RH fixes as of today
    (including glibc 2.0.6);
    - upgraded to support 2.1.89-pre5 (this shouldn't make a difference, as
    tools like modutils should be backward compatible, right ?)

    I tried
    - base 2.0.32 as included in RH 5.0
    - clean 2.0.33
    - 2.0.33 patched with Alan's 2.0.34pre2-patch
    - both the 0.79 tulip as included in the kernel as the 0.83 tulip

    Symptoms:
    - (on all:) Too much work in interrupt
    - (on 3[23]:) Aiee: scheduling in interrupt (no keyboard response, fsck all
    disks)
    - (on 34pre2:) CP: U #3Attempted flush tlb IPI when not AKP (=255)
    (followed by:)
    - IRQ DEADLOCK DETECTED BY CPU [012] (and locked again...)

    2.1.89pre5 works great, even with IO-APIC, but I need stable TCP/IP for my
    sims...

    Extra data can be provided, of course.

    Sincerely,

    Jan-Derk Bakker.

    --
    Jan-Derk Bakker, bakker@mmc.et tudelft.nl

    The lazy man's proverb:
    'There's no business like slow business !'



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