linux-kernel - Re: rcu_prempt stalls / lockup

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Message-ID: <20140403223700.GA18353@redhat.com>
Date:	Thu, 3 Apr 2014 18:37:00 -0400
From:	Dave Jones <davej@...hat.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: rcu_prempt stalls / lockup

On Thu, Apr 03, 2014 at 05:44:30PM -0400, Dave Jones wrote:
 > On Thu, Apr 03, 2014 at 01:46:56PM -0700, Paul E. McKenney wrote:
 >  > 	git merge anti-fixes
 >  > 
 >  > Then bisect through these reverts.
 >  > 
 >  > I am assuming, perhaps naively, that changes under Documentation and
 >  > to torture testing should not be affecting you.
 >  > 
 >  > Does this make sense?
 > 
 > I tried reverting every one of those and could still hit it, which
 > seems to indicate the bug is elsewhere, and rcu is just a victim of it.
 > I'm going to start trying to revert the lockdep changes, given this seems
 > to happen after that has warned..

And that was also without any success.
Tomorrow I'll try a bisect on just arch/x86.

	Dave

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