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    SubjectRe: fork: out of memory
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    Date
    Pavel Machek <pavel@Elf.mj.gts.cz> writes:

    > Hi!
    >
    > Seems to me that newer kernel (2.1.46) have bad problems with above
    > error... Is someone else experiencing this? It is bad when running cvs
    > (in way export CVSROOT=localhost:/...), cvs can not fork sometimes and
    > it is _bad_.

    That's caused by the new two page kernel stack/current task struct
    allocation. Every process needs two consecutive pages now
    (get_free_pages(2)). When your memory fragments fork() often can't
    find two consecutive pages anymore. Unfortunately do_fork() doesn't
    try to call the swapper to free some pages or buffers and just return
    -ENOMEM.

    -Andi

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