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From: Mike Galbraith <efault@gmx.de>
To: paulmck@linux.vnet.ibm.com
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>
Subject: Re: rcu  stalls running 3.0.1-rt8
Date: Tue, 09 Aug 2011 03:14:28 +0200	[thread overview]
Message-ID: <1312852468.5977.10.camel@marge.simson.net> (raw)
In-Reply-To: <20110808231039.GP4435@linux.vnet.ibm.com>

On Mon, 2011-08-08 at 16:10 -0700, Paul E. McKenney wrote:
> On Mon, Aug 08, 2011 at 03:55:18PM +0200, Mike Galbraith wrote:
> > Greetings,
> > 
> > I've had no time to tinker with this but though I should get it posted,
> > so build latest/greatest to make sure it's still there.  It is.
> > 
> > Box can be idling along, and pow.  If RCU_BOOST is enabled, I get a hung
> > task panic after the stall.  If RCU_BOOST is off, and debugging options
> > are cut to the bone, box will stay up despite periodic gripes.
> 
> Yow!
> 
> Is this new in -rt8?  I wasn't seeing it in earlier versions.  Then
> again, I was running 32 bits.

No, I saw it in earlier releases too.  The only thing I've done since
first seeing it is a quick build to see if it was still alive, or had
died of boredom while waiting for me to come out and play ;-)

	-Mike


  reply	other threads:[~2011-08-09  1:15 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-05 21:44 [ANNOUNCE] 3.0.1-rt8 Peter Zijlstra
2011-08-08 13:55 ` rcu stalls running 3.0.1-rt8 Mike Galbraith
2011-08-08 23:10   ` Paul E. McKenney
2011-08-09  1:14     ` Mike Galbraith [this message]
2011-08-09 15:13 ` [ANNOUNCE] 3.0.1-rt8 - Regression to 3.0-rt7 Tim Sander
2011-08-11  9:43   ` Peter Zijlstra
2011-08-11 11:30     ` Tim Sander
2011-08-11 12:02       ` Peter Zijlstra
2011-08-11 12:52         ` Tim Sander
2011-08-11 12:52           ` Tim Sander
2011-08-11 15:28         ` Tim Sander
2011-08-11 15:28           ` Tim Sander
2011-08-11 12:41       ` Peter Zijlstra
2011-08-11 16:04         ` Tim Sander
2011-08-11 16:04           ` Tim Sander
2011-08-11 16:14           ` Peter Zijlstra
2011-08-11 16:22             ` Tim Sander
2011-08-11 16:41               ` Tim Sander
2011-08-11 16:41                 ` Tim Sander
2011-08-11 16:39           ` Peter Zijlstra
2011-08-11 17:08             ` Tim Sander
2011-08-11 17:08               ` Tim Sander
2011-08-11 18:05           ` Peter Zijlstra
2011-08-11 18:05             ` Peter Zijlstra
2011-08-12  8:59             ` Tim Sander
2011-08-12  8:59               ` Tim Sander
2011-08-11 10:45   ` Peter Zijlstra
2011-08-11 15:36     ` Tim Sander
2011-08-11 15:36       ` Tim Sander
2011-08-09 18:31 ` [ANNOUNCE] 3.0.1-rt8 Fernando Lopez-Lezcano
2011-08-09 18:47   ` Peter Zijlstra
2011-08-10  1:08     ` Paul E. McKenney
2011-08-10  1:07   ` Paul E. McKenney

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