lkml.org 
[lkml]   [2005]   [Jun]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00

* Ingo Molnar <mingo@elte.hu> wrote:

> > There doesn't seem to be any actual lockups, just messages. I will try
> > disabling the above when I get home this evening. Can't get to the
> > system right now.
>
> i tweaked the softlockup detector in the last patch a bit (to fix
> false positives under very high loads), might have broken it on SMP.

yeah - found a bug that could explain the symptoms on your system.
Called softlockup_tick() from the global timer interrupt, instead of the
per-CPU timer interrupt. So on SMP the other CPUs would not see any
softlockup ticks at all, and would incorrectly report soft lockups.
This bug is fixed in the -48-36 patch i just uploaded.

Ingo
-
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/

\
 
 \ /
  Last update: 2005-06-17 13:22    [W:0.230 / U:0.008 seconds]
©2003-2014 Jasper Spaans. Advertise on this site