linux-kernel - Re: rcu_prempt stalls / lockup

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Message-ID: <20140331233552.GB30019@redhat.com>
Date:	Mon, 31 Mar 2014 19:35:52 -0400
From:	Dave Jones <davej@...hat.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: rcu_prempt stalls / lockup

On Mon, Mar 31, 2014 at 04:22:21PM -0700, Paul E. McKenney wrote:
 > On Mon, Mar 31, 2014 at 07:02:41PM -0400, Dave Jones wrote:
 > > You can tell the merge window is open, because I'm back to breaking RCU.
 > > 
 > > ... 
 > > [ 3558.120739] INFO: Stall ended before state dump start
 > > 
 > > at that point, userspace stopped responding. cursor on console was blinking,
 > > but I couldn't even switch tty's, or sysrq dump.
 > > 
 > > rc8 was fine, so this is todays rcu changes.
 > 
 > New one on me!  Any chance of a .config file?

http://paste.fedoraproject.org/90449/30888213/raw/

	Dave

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