Date: Wed, 11 Sep 2013 12:34:31 +0200
From: Jochen Striepe <jochen@tolot.escape.de>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: 3.10.5: rcu_sched detected stalls on CPUs/tasks
Message-ID: <20130911103430.GA1509@pompeji.miese-zwerge.org>
References: <20130813103202.GB2338@pompeji.miese-zwerge.org>
 <20130818180232.GL29406@linux.vnet.ibm.com>
 <20130818184848.GA2398@pompeji.miese-zwerge.org>
 <20130909215836.GD17483@pompeji.miese-zwerge.org>
 <20130909222751.GL3966@linux.vnet.ibm.com>
 <20130910074550.GE17483@pompeji.miese-zwerge.org>
 <20130910175453.GQ3966@linux.vnet.ibm.com>
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	Hello,

On Tue, Sep 10, 2013 at 10:54:53AM -0700, Paul E. McKenney wrote:
> Their stall was due to old-style creation of sysfs entries for memory.
> Yours might be having a similar issue with the creation of /dev entries,
> so it would be worth trying it.

OK, compiling 3.10.11 with your patch right now.

> One thing to try would be to insert delays into the code involved in
> creating the /dev entries.  These delays will need to be busy-waits
> rather than sleeps.

Uh, I will have a look. But I'm no kernel developer. :)


Best greetings,
Jochen.
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