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    SubjectRe: NFS oops in 2.6.26rc4

    On Jun 4, 2008, at 10:19 AM, Dave Jones wrote:

    > On Fri, May 30, 2008 at 03:37:01PM -0400, Chuck Lever wrote:
    >>> Something else of note which I hadn't seen before, usually things
    >>> lock
    >>> up just after that first oops. For some reason, today it survived
    >>> a little longer, but things really went downhill fast.
    >>> It survived a 'dmesg ; scp dmesg davej@gelk', and then wedged solid.
    >>> So as well as the oops, it seems we're corrupting memory too.
    >>> For reference, this kernel has both SLUB_DEBUG and PAGEALLOC_DEBUG
    >>> enabled.
    >> I haven't seen this kind of problem here with .26, but yes, it does
    >> look like something is clobbering memory during an NFS mount.
    >> I introduced some NFS mount parsing changes in this commit range:
    >> 2d767432..82d101d5
    >> A quick bisect should show which, if any of these, is the guilty
    >> party. If any of these are the problem, I suspect it's 3f8400d1.
    > I didn't get time to try this out yet (hopefully tomorrow).
    > In the meantime, we've just gotten word of another user seeing memory
    > corruption with nfs -

    449958 could very well be the same problem. The stack traceback is a
    lot cleaner than the one you originally sent, but there are a lot of
    similarities. (I doubt this is related to symlinks, as the comment

    Is commit 86d61d863 applied to the current rawhide kernel?

    Chuck Lever

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