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On Tue, 2005-10-11 at 12:28 -0400, Lee Revell wrote: > On Tue, 2005-10-11 at 13:20 +0200, Ingo Molnar wrote: > > * Lee Revell <rlrevell@joe-job.com> wrote: > > > > > Something appears to have disabled IRQs for 657 usecs. > > > > how hard is it to reproduce this latency? > > Very easy. Here's the current max latency. > > The max latency is close to the period of the timer IRQ. So either it's > an instrumentation bug or something really disables IRQs for up to 1/HZ > seconds. I can no longer reproduce this with 2.6.14-rc4-rt1. It seems to have been a real IRQs disabled bug (not an instrumentation bug) as I was also getting xruns with 2.6.13-rt12. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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