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    SubjectRe: Kernel BUG at fs/mpage.c:489
    On Wed, 13 Feb 2008 20:24:03 +1100 Nick Piggin <nickpiggin@yahoo.com.au> wrote:

    > BTW is it really true that the buffer can never be locked by
    > anything else at this point?

    It has been for the past five or six years. With the page locked, nobody
    else can get at that page.

    > What about fsync_buffers_list?

    They're metadata buffers, not regular file data. Things might get ugly if
    IO to /dev/sda went via that path, but it doesn't.



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