From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Sasha Levin <levinsasha928@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Dave Jones <davej@redhat.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: rcu: BUG: spinlock recursion on CPU#3, trinity-child19/5970
Date: Wed, 4 Jul 2012 12:07:31 -0700 [thread overview]
Message-ID: <20120704190731.GE2522@linux.vnet.ibm.com> (raw)
In-Reply-To: <1341413691.18786.0.camel@lappy>
On Wed, Jul 04, 2012 at 04:54:51PM +0200, Sasha Levin wrote:
> On Mon, 2012-07-02 at 07:59 -0700, Paul E. McKenney wrote:
> > On Mon, Jul 02, 2012 at 04:36:53PM +0200, Sasha Levin wrote:
> > > Looks like its running fine for a bit now (~10 min). I'll ping if
> > > anything changes, but on the other tests it has usually failed at this
> > > point.
> > If testing goes well (both yours and mine), I will be submitting this
> > as urgent, since it is a 3.5 regression. If they don't take it, I will
> > queue it for 3.6.
>
> 2 days later, and this didn't reproduce. I think we can say it's solved.
Very good, and thank you very much for all your testing efforts!
I have added a ten-microsecond delay to __rcu_read_unlock() under a
new CONFIG_RCU_PROVE_DELAY, and have added this to my testing regimen.
And I guess I have also added it in a probabilistic manner to the various
randconfig testing out there. ;-)
Or will have when it hits mainline, probably 3.7.
Thanx, Paul
next prev parent reply other threads:[~2012-07-04 19:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-29 10:09 rcu: BUG: spinlock recursion on CPU#3, trinity-child19/5970 Sasha Levin
2012-06-29 17:23 ` Paul E. McKenney
2012-06-29 21:40 ` Sasha Levin
2012-06-29 22:27 ` Paul E. McKenney
2012-06-29 22:40 ` Sasha Levin
2012-06-29 23:01 ` Paul E. McKenney
2012-07-02 10:32 ` Peter Zijlstra
2012-07-02 11:35 ` Paul E. McKenney
2012-07-02 11:59 ` Peter Zijlstra
2012-07-02 13:12 ` Sasha Levin
2012-07-02 13:33 ` Paul E. McKenney
2012-07-02 14:22 ` Paul E. McKenney
2012-07-02 14:36 ` Sasha Levin
2012-07-02 14:59 ` Paul E. McKenney
2012-07-04 14:54 ` Sasha Levin
2012-07-04 19:07 ` Paul E. McKenney [this message]
2012-06-30 11:36 ` Sasha Levin
2012-06-30 13:14 ` Paul E. McKenney
2012-06-30 13:28 ` Sasha Levin
2012-06-30 13:58 ` Paul E. McKenney
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