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    SubjectRe: What's left over.
    Date
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    Hugh Dickins <hugh@veritas.com> said:

    [...]

    > I dealt with crash dumps quite a lot over 10 years with SCO UNIX,
    > OpenServer and UnixWare: which were addressing the PC market, not
    > own hardware.

    What I remember about hardware compatibility for SCO Unix and Solaris on
    ia32 is _not_ funny. Lightyears from what Linux handles today without
    breaking a sweat.

    > It's a real worry that writing a crash dump to disk might stomp in the
    > wrong place, but I don't recall it ever happening in practice. But
    > occasionally, yes, a dump was not generated at all, or not completed.

    How do you test that? Not in some contrieved situation, under real crashes.
    Don't just consider crashes in the official $DISTRIBUTION kernel, but in
    Linus' BK tree, or some of the random, two-or-three-letter-trees of the day
    (_that_ is where crashes happen, _that_ is where the info would be most
    valuable). It gets _real_ hairy _real_ fast to make sure you don't scribble
    over /home or /etc on the user's disk...

    > Of course, you could argue that SCO's disk drivers were more stable :-)

    If you only handle a few, thoroughly tested, high-end controllers and
    disks, that is not too hard to do.
    --
    Dr. Horst H. von Brand User #22616 counter.li.org
    Departamento de Informatica Fono: +56 32 654431
    Universidad Tecnica Federico Santa Maria +56 32 654239
    Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513
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