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    SubjectRe: [2.6.21.1] soft lockup when removing netconsole module
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    On Sat, 2007-05-26 at 18:49 +0200, Folkert van Heusden wrote:
    > > > > > Seems to be hrtimers related - CC'ed Thomas.
    > > > > I doubt that. The tick interrupt just finds out, that the machine is
    > > > > stuck in rmmod.
    > > > > > > Also the rmmod hangs and would not exit even with kill -9. It also
    > > > > > > sucks up 100% cpu.
    > > > > Can you please enable CONFIG_PROVE_LOCKING ?
    > > > Luckily I already had :-)
    > > > Here is its output:
    > > So there is no output from lockdep, during the rmmod hang ? The rmmod
    >
    > Nope, just other subsystems (nfs, usb) minutes before that.

    Hmm. Can you provide the output of that ? Might be some stale stuff
    leading to the hang later.

    tglx


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