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    SubjectRe: 2.6.38-rc3: FUSE (sshfs) hangs under load
    On Wed, Feb 02, 2011 at 08:52:36AM -0800, Dmitry Torokhov wrote:
    > On Wed, Feb 02, 2011 at 12:52:36PM +0100, Miklos Szeredi wrote:
    > > On Tue, 1 Feb 2011, Dmitry Torokhov wrote:
    > > > Hi,
    > > >
    > > > After installing 2.6.38-rc3 (plus a few input patches) sshfs started to
    > > > misbehave on me under load. It starts off fine but when I try to compile
    > > > a few modules against kernel sources residing on the other box the
    > > > processes go into 'D' state and just sit there doing nothing.
    > >
    > > Can you please post a stack trace from SysRq-T?
    > >
    >
    > Will do tonight. In the meantime I tried bisecting, but failure is not
    > always triggered on the first attempt so results are iffy. The log so
    > far:
    >
    > # bad: [7d44b0440147d83a65270205b22e7d365de28948] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
    > # good: [3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5] Linux 2.6.37
    > git bisect start '7d44b0440147d83a65270205b22e7d365de28948' 'v2.6.37'
    > # bad: [84b7290cca16c61a167c7e1912cd84a479852165] Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6
    > git bisect bad 84b7290cca16c61a167c7e1912cd84a479852165
    > # good: [fea9294c5f2902c45613681ad995ca27899d2016] pch_can: Optimize "if" condition in rx/tx processing
    > git bisect good fea9294c5f2902c45613681ad995ca27899d2016
    > # bad: [c96e96354a6c9456cdf1f150eca504e2ea35301e] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
    > git bisect bad c96e96354a6c9456cdf1f150eca504e2ea35301e
    > # good: [003ea98195eebdfcf476317b517e8c29a25b9d10] iwlwifi: remove reference to Gen2
    > git bisect good 003ea98195eebdfcf476317b517e8c29a25b9d10
    >
    > The last good must have been also bad as sshfs got stuck while I was
    > installing next bisect step over it.
    >

    OK, so here are the stack traces you requested. First one is snapshot of
    when compile got stuck, the 2nd one is when I interrupted make which
    caused gcc to go to 'D' state.

    Thanks.

    --
    Dmitry
    [unhandled content-type:application/x-bzip2]
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