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    SubjectRe: VM-related Oops: 2.4.15pre1
    On Sat, Nov 17, 2001 at 07:12:51PM -0800, Linus Torvalds wrote:
    > In article <> you write:
    > >
    > >I think this one liner (diffed against 2.4.14) could fix this Oops:
    > It really shouldn't matter - at that point we have the page locked, and

    I also agree the patch shouldn't matter, but one suspect thing is the
    fact add_to_swap_cache goes to clobber in a non atomic manner the page
    lock. so yes, we hold the page lock both in swap_out and in
    shrink_cache, but swap_out can drop it for a moment and then later
    pretend to be the onwer again without a real trylock.

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