[lkml]   [1998]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Yet more VM writable swap-cached pages
    Ganesh Sittampalam wrote:

    > Jul 9 18:27:30 munchkin kernel: VM: Found a writable swap-cached page!
    > Jul 9 18:27:30 munchkin kernel: pte 6a8042, vma flags 00000070, page
    > flags 0000028c, count 2
    > Jul 9 18:27:30 munchkin kernel: page=c0206f80@0017da00, found=c0206f80,
    > count=3

    The pte value above is very puzzling -- it says that the page is not
    present, in which case the "writable" bit means PROT_NONE, not writable.
    The pte value is tested immediately after dereferencing the page table
    to make sure it's present, so I don't see how we could reach this point
    without the page being present.

    Maybe this is a compiler bug after all ...


    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to

     \ /
      Last update: 2005-03-22 13:43    [W:0.017 / U:2.252 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site