• Rik van Riel's avatar
    [PATCH] temporarily disable swap token on memory pressure · f7b7fd8f
    Rik van Riel authored
    Some users (hi Zwane) have seen a problem when running a workload that
    eats nearly all of physical memory - th system does an OOM kill, even
    when there is still a lot of swap free.
    The problem appears to be a very big task that is holding the swap
    token, and the VM has a very hard time finding any other page in the
    system that is swappable.
    Instead of ignoring the swap token when sc->priority reaches 0, we could
    simply take the swap token away from the memory hog and make sure we
    don't give it back to the memory hog for a few seconds.
    This patch resolves the problem Zwane ran into.
    Signed-off-by: default avatarRik van Riel <riel@redhat.com>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
thrash.c 2.74 KB