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    SubjectRe: 2.6.34.1+hacks: kernel deadlock related to file-IO?
    On Tue, 27 Jul 2010 17:14:53 -0700
    Ben Greear <greearb@candelatech.com> wrote:

    > On 07/27/2010 04:51 PM, Stephen Hemminger wrote:
    > > On Tue, 27 Jul 2010 16:11:47 -0700
    > > Ben Greear<greearb@candelatech.com> wrote:
    > >
    > >> NOTE: This is from a hacked 2.6.34.1 kernel, with
    > >> a module of my own devising loaded and in active use.
    > >
    > > Ben please don't ask LKML for help with problems when
    > > you have a binary only module loaded...
    >
    > Yeah, I know..but I spent all day hacking .34 enough to
    > run lockdep and get those backtraces..and they *might* be
    > valid. There's a small chance someone else has seen similar
    > things but not reported it for whatever reason, so maybe
    > they will chime in.
    >
    > And finally, I will attempt to reproduce with some official
    > kernels, and will report what I find one way or another.
    >
    > The .34 kernel has been a real bitch to get stable (You
    > know things must be bad when my name's on -stable patches),
    > so I wouldn't be surprised if I'm hitting another real bug.

    Understand your pain. The hardest problem is often finding a reproducible case.
    If the problem is not reproducible it is hard to add trace info
    or use bisection.


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