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    SubjectRe: BUG: using smp_processor_id() in preemptible [00000000] code: icedove-bin/5449
    On 25.05.2010 16:13, Piotr Hosowicz wrote:
    > On 25.05.2010 12:29, Piotr Hosowicz wrote:
    >> On 25.05.2010 12:05, Piotr Hosowicz wrote:
    >>> On 25.05.2010 12:00, Peter Zijlstra wrote:
    >>>> On Tue, 2010-05-25 at 11:57 +0200, Piotr Hosowicz wrote:
    >>>>> On 25.05.2010 11:43, Ingo Molnar wrote:
    >>>>>> This doesnt fix the whole issue. cpu_clock() is local, while the
    >>>>>> measurements
    >>>>>> done in the blk code are global ...
    >>>>>> While the warning is fixed this way, the far more serious issue is
    >>>>>> still
    >>>>>> there: time can go backwards if two points of time measurement are on
    >>>>>> different CPUs and can mess up the statistics with negative values,
    >>>>>> etc...
    >>>>> How serious is this? Can it damage my data? I ask because the
    >>>>> machine is
    >>>>> my private computer, not any test machine.
    >>>> I'm not sure, since I didn't really look what they use the timestamps
    >>>> for, but a guess would say your data is safe, it might schedule the io
    >>>> funny, but it should not compromise integrity. At best its used purely
    >>>> for statistics and not even behaviour is affected.
    >>> Thanks.
    >> Seems to work like a charm.
    > Not exactly. I looked into the syslog. I's much better, but I rebooted
    > to single user mode to rebuild nvidia driver (new beta version) and I
    > see same error (BUG ... code: ???) on shuting down, mentioning sync,
    > umount and finally shutdown.

    Sorry, reversed order - shutdown, umount, finally sync.

    - Czy jest cukier w kostkach ?
    - Nie ma.
    - A jakas inna tania bombonierka? Dla tesciowej.
    NP: Chickenfoot - Soap On A Rope
    NB: 2.6.34-20100524-1752-patched

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      Last update: 2010-05-25 16:37    [W:0.024 / U:29.584 seconds]
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