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From: Andrew Morton <akpm@digeo.com>
To: george anzinger <george@mvista.com>
Cc: tim@physik3.uni-rostock.de, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fix nanosleep() granularity bumps
Date: Tue, 18 Mar 2003 18:59:35 -0800	[thread overview]
Message-ID: <20030318185935.2735c583.akpm@digeo.com> (raw)
In-Reply-To: <3E77D7DE.6090004@mvista.com>

george anzinger <george@mvista.com> wrote:
>
> > There is currently a mysterious timer lockup happening on power4 machines. 
> > I'd like to keep these changes well-separated in time so we can get an
> > understanding of what code changes correlate with changed behaviour.
> 
> Tell me more...

Don't know much more really.  Anton has a machine which fairly repeatably
locks up at jiffies = 0x100104100.

> Latest BK. Ive been getting this lockup for a while,
> It _always_ triggers when jiffies = 0x100104100.
> 
> c000000000068a14 cascade+0x74
> c0000000000694a4 run_timer_softirq+0x244
> c0000000000614f0 do_softirq+0x174
> c000000000012c10 timer_interrupt+0x1a8
> c000000000012a0c cpu_idle+0xc0

This _might_ be the timer-handler-does-add_timer(right now) lockup which was
fixed in Linus's tree today.

  reply	other threads:[~2003-03-19  2:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.33.0303181251130.28123-100000@gans.physik3.uni-rostock.de>
2003-03-18 20:26 ` Tim Schmielau
2003-03-19  2:08   ` george anzinger
2003-03-19  4:31     ` Andrew Morton
2003-03-19  2:37       ` george anzinger
2003-03-19  2:59         ` Andrew Morton [this message]
2003-03-19  7:51       ` Tim Schmielau
2003-03-19  8:35         ` george anzinger
2003-03-19  9:28         ` george anzinger
2003-03-19  9:40           ` Tim Schmielau
2003-03-19 21:30             ` george anzinger
     [not found]               ` <20030319155258.64cbc43d.akpm@digeo.com>
2003-03-19 22:25                 ` [PATCH] Remove defered timer list in favor of moving the list time update george anzinger
2003-03-20  7:36               ` [PATCH] fix nanosleep() granularity bumps Tim Schmielau
2003-03-19  9:42           ` Andrew Morton
2003-03-19 18:08             ` george anzinger
2003-03-19 18:51               ` Andrew Morton
2003-03-19 20:29                 ` george anzinger
2003-03-17 19:42 [BUG & WORKAROUND] nanosleep() granularity bumps up in 2.5.64 Tim Schmielau
2003-03-18  9:05 ` [PATCH] fix nanosleep() granularity bumps Tim Schmielau
2003-03-24 12:06   ` Finn Arne Gangstad
2003-03-24 12:10     ` Tim Schmielau

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