On Thu, 11 Sep 2008 16:44:20 +0300 (EEST) "Ilpo Järvinen" <ilpo.jarvinen@xxxxxxxxxxx> wrote: > ...I guess it would be possible to remove SCHED_FEAT_HRTICK from > /proc/sys/kernel/sched_features then while keeping the hrtimers > otherwise enabled to test this. > > It's possible that hrtimers just affect on how easy it is to trigger > but at least it seems an useful lead until proven otherwise. You're right Ilpo. After days and days without the problem, today it triggered (but I wasn't online at the time, so I couldn't grab any data). So, you're correct. HRtimers just affect on how easy it is to trigger the issue. In other words: with high resolution timer enabled, the problem appears more frequently. At least if we discovered a way how to trigger this, we could test it more easily. The problem is to wait a long time for it to happen. Just a curiosity: on your servers, do you use x86_64? It seems this problem is very specific to x86_64 or appear more often on x86_64 than x86_32. It never happens on my x86_32 bit servers. -- -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html