Message-ID: <5165C087.4060404@sr71.net>
Date: Wed, 10 Apr 2013 12:41:59 -0700
From: Dave Hansen <dave@sr71.net>
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MIME-Version: 1.0
To: Thomas Gleixner <tglx@linutronix.de>
CC: Borislav Petkov <bp@alien8.de>,
        "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
        LKML <linux-kernel@vger.kernel.org>, Dave Jones <davej@redhat.com>,
        dhillf@gmail.com, Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH] kthread: Prevent unpark race which puts threads on the
 wrong cpu
References: <515F457E.5050505@sr71.net> <515FCAC6.8090806@linux.vnet.ibm.com> <alpine.LFD.2.02.1304061019000.21884@ionos> <alpine.LFD.2.02.1304071119100.21884@ionos> <20130407095025.GA31307@pd.tnic> <alpine.LFD.2.02.1304081122040.21884@ionos> <20130408115553.GA4395@pd.tnic> <alpine.LFD.2.02.1304081415570.21884@ionos> <alpine.LFD.2.02.1304091635430.21884@ionos> <516439DF.3050901@sr71.net> <alpine.LFD.2.02.1304092036431.21884@ionos> <alpine.LFD.2.02.1304092126150.21884@ionos> <51647C30.3050109@sr71.net> <alpine.LFD.2.02.1304101024010.21884@ionos> <alpine.LFD.2.02.1304101250320.21884@ionos>
In-Reply-To: <alpine.LFD.2.02.1304101250320.21884@ionos>
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I think I got a full trace this time:

	http://sr71.net/~dave/linux/bigbox-trace.1365621899.txt.gz

The last timestamp is pretty close to the timestamp on the console:

[ 2071.033434] smpboot_thread_fn():
[ 2071.033455] smpboot_thread_fn() cpu: 22 159
[ 2071.033470] td->cpu: 22
[ 2071.033475] smp_processor_id(): 21
[ 2071.033486] comm: migration/%u


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