Messages in this thread | | | Date | Fri, 4 Nov 2005 19:46:23 -0800 | From | Mark Knecht <> | Subject | Re: 2.6.14-rt1 (now rt6) |
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On 11/4/05, Fernando Lopez-Lezcano <nando@ccrma.stanford.edu> wrote: > On Sun, 2005-10-30 at 14:33 +0100, Ingo Molnar wrote: > > i have released the 2.6.14-rt1 tree, which can be downloaded from the > > usual place: > > > > http://redhat.com/~mingo/realtime-preempt/ > > > > this release is mainly about ktimer fixes: it updates to the latest > > ktimer tree from Thomas Gleixner (which includes John Stultz's latest > > GTOD tree), it fixes TSC synchronization problems on HT systems, and > > updates the ktimers debugging code. > > > > These together could fix most of the timer warnings and annoyances > > reported for 2.6.14-rc5-rt kernels. In particular the new > > TSC-synchronization code could fix SMP systems: the upstream TSC > > synchronization method is fine for 1 usec resolution, but it was not > > good enough for 1 nsec resolution and likely caused the SMP bugs > > reported by Fernando Lopez-Lezcano and Rui Nuno Capela. > > > > Please re-report any bugs that remain. > > I've been running 2.6.14-rt6 fine in my smp system the whole day and > suddenly, just a moment ago, I suddenly started getting key repeats and > screensaver bliiiinks [not my typo]. No HIGH_RES_TIMERS, with > PREEMPT_RT. No messages in the logs or dmesg.
This sounds so familiar and similar to me, but with such a different presentation. I ran about 15 hours yesterday with no xruns. Suddenly at the end of the day I get about 8. I start up again this morning, get two almost immediately, and then run the rest of the day with none.
No HIGH_RES_TIMERS, with RT_PREEMPT.
Very strange.
Yesterday was 2.6.14-rt4. Today was -rt6.
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