Date: Wed, 9 Nov 2005 12:22:47 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU>
Cc: linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
       Steven Rostedt <rostedt@goodmis.org>,
       Mark Knecht <markknecht@gmail.com>, john stultz <johnstul@us.ibm.com>,
       Florian Schmidt <mista.tapas@gmx.net>, "K.R. Foley" <kr@cybsft.com>,
       Rui Nuno Capela <rncbc@rncbc.org>
Subject: Re: 2.6.14-rt1 (now rt6)
Message-ID: <20051109112247.GA31536@elte.hu>
References: <20051017160536.GA2107@elte.hu> <20051020195432.GA21903@elte.hu> <20051030133316.GA11225@elte.hu> <1131158124.4834.24.camel@cmn3.stanford.edu>
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* Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU> wrote:

> I've been running 2.6.14-rt6 fine in my smp system the whole day and 
> suddenly, just a moment ago, I suddenly started getting key repeats 
> and screensaver bliiiinks [not my typo]. No HIGH_RES_TIMERS, with 
> PREEMPT_RT. No messages in the logs or dmesg.
> 
> Doing a loop with "sleep 10" bbracketed by calls to date gives me 
> sporadic results:
> 
> --- Fri Nov  4 18:30:25 PST 2005
> 10
> ---
> --- Fri Nov  4 19:43:53 PST 2005
> 10
> ---
> --- Fri Nov  4 19:44:03 PST 2005
> 3

hm ... could you try the -rt9 kernel, does it still produce these short 
timeouts? If yes, then could you strace the 'sleep 10' processes and 
send me the strace output of such a short sleep? (does it still return 
-516, aka -ERESTART_RESTARTBLOCK?)

	Ingo
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