Messages in this thread | | | Date | Tue, 25 May 2010 11:57:30 +0200 | From | Piotr Hosowicz <> | Subject | Re: BUG: using smp_processor_id() in preemptible [00000000] code: icedove-bin/5449 |
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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.
Regards,
Piotr Hosowicz
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