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    SubjectRe: Behavior under swap catastrophe?
    Dale R. Worley said:
    > In article <>
    > (Joe Fouche) writes:
    > I've noticed lately that the behavior of the kernel when some
    > process goes berserk and fills up all the swap is a little
    > strange. It seems to start sending SEGV's to many processes as the
    > large one grows. This wouldn't be so bad, except that init is often
    > killed. Is a modification to protect the life of init in order? Or
    > should we just make sure this never happens?
    > My suspicion is that it is not really the kernel sending SEGV's, but
    > rather that the programs are calling malloc, which discovers that it

    I don't know how to distinguish between those two. When this happened a
    few months ago, I assumed it was the kernel because I saw kernel messages
    which read "not enough memory for *" when each process died. But I
    suppose this could just be saying that the kernel couldn't satisfy malloc.
    In any case I can't find that printk in the source tree (though I just did
    grep */*/*, not all that thorough)

    > None of this explains why init dies. Perhaps init is not checking the
    > return value from malloc?

    Last time this happened it didn't die outright, but said something like
    "giving up". After that it was still nonfunctional, though :) I'll look
    through the source if I get a chance.
    _ ____ Joe Fouche (
    ___| |--- Deranged College Student
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      Last update: 2005-03-22 13:38    [W:0.017 / U:12.016 seconds]
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