linux-kernel - Re: 4.10-rc1: thinkpad x60: who ate my cpu?

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Message-ID: <20170213094236.GA2924@amd>
Date:   Mon, 13 Feb 2017 10:42:36 +0100
From:   Pavel Machek <pavel@....cz>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Woody Suwalski <terraluna977@...il.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        kernel list <linux-kernel@...r.kernel.org>, mingo@...hat.com,
        hpa@...or.com
Subject: Re: 4.10-rc1: thinkpad x60: who ate my cpu?

Hi!

On Mon 2017-02-13 09:48:41, Thomas Gleixner wrote:
> On Mon, 13 Feb 2017, Pavel Machek wrote:
> > cd /sys/devices/system/cpu/cpu1
> > while true; do echo 0 > online; echo 1 > online; done
> > 
> > ...crashes x60 with 4.10-rc in few minutes. [Which is bad -- it should
> > not die, but also good -- this is easier to reproduce then running 100
> > suspend cycles.]
> 
> Can you tell where it crashes?

I did not expect a crash, so I was in X... I have a feeling that this
will be reproducible on a lot of hardware, but let me try.

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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