On Thu, 2007-05-17 at 12:11 +0530, Anant Nitya wrote: > On Friday 11 May 2007 03:28:46 Thomas Gleixner wrote: > > > Ok, that's consistent with earlier reports. The problem surfaces when > > one of the SMT-"cpus" goes idle. The problem goes away when you disable > > hyperthreading. > Yes with HT disabled in BIOS there is no local_softirq_pending messages. BTW > why does this problem persist only with X ?
No idea. I uploaded a debug patch against 2.6.22-rc1 to http://www.tglx.de/private/tglx/2.6.22-rc1-hrt-debug.patch Can you give it a try and report the output ? > > When you apply the ratelimit patch, does the softlockup problem > > persist ? > > > Yes, though softlockup is rare and mostly hit when system is under high load. > Apart of that I am also getting following messages consistently across > multiple boot cycles with NOHZ=y and ratelimit patch applied. > > May 15 11:51:22 rudra kernel: [ 2594.341068] Clocksource tsc unstable (delta > = > 28111260302 ns) > May 15 11:51:22 rudra kernel: [ 2594.343194] Time: acpi_pm clocksource has > been installed. That's informal. The TSC is detected to be unstable and replaced by the pm timer. Nothing to worry about. It happens with NOHZ=n as well, right ? tglx - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
