Re: stuck on TLB IPI wait (CPU#0) at 2.2.17+reiserfs+ide+raid

From: Hisaaki Shibata (shibata@luky.org)
Date: Tue Sep 19 2000 - 13:17:44 EST


Thanks, Chris Mason,

> > few weeks ago, I installed a PROMISE Ultra66 IDE card into my SMP Linux
> > box. But my box sometimes hang up at high load average with "stuck on TLB
> > IPI wait (CPU#0)" messages.

> > My kernel is linux-2.2.17 with following patches.
> > linux-2.2.17-reiserfs-3.5.25-patch.gz
> > ide.2.2.17.all.20000904.patch.bz2
> > raid-2.2.17-A0

> This is a known issue with the way reiserfs uses the scheduler task queue.
> The following patch from Andi Kleen should take care of it for you:
>
> --- linux/kernel/sched.c-o Wed Feb 9 14:27:20 2000
> +++ linux/kernel/sched.c Wed Mar 29 12:53:41 2000
> @@ -803,6 +803,7 @@
> goto handle_bh_back;
>
> handle_tq_scheduler:
> + __sti();
> run_task_queue(&tq_scheduler);
> goto tq_scheduler_back;

After using this patch, My linux box work very well with high load average
and heavy disk access application like encoding MP3s.

Thank you very much and best regards,

-- 
 WWWWW  shibata@luky.org
 |O-O|  Hisaaki Shibata @ Fukuoka-shi JAPAN
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   ~    http://his.luky.org/ last update:2000.3.12
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