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Date: Tue, 21 Nov 2017 14:55:07 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Fengguang Wu <fengguang.wu@intel.com>
cc: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@redhat.com>,
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        Michael Sartain <mikesart@fastmail.com>, linux-kernel@vger.kernel.org,
        lkp@01.org
Subject: Re: [tracer_init_tracefs] watchdog: BUG: soft lockup - CPU#0 stuck
 for 23s! [swapper/0:1]
In-Reply-To: <20171121122745.uaot43rwpv2qqdvq@wfg-t540p.sh.intel.com>
Message-ID: <alpine.DEB.2.20.1711211454240.1782@nanos>
References: <20171121090529.p3bcdz5y5bs5mqk2@wfg-t540p.sh.intel.com> <20171121110736.xcljt5qcdwjzqbhp@wfg-t540p.sh.intel.com> <20171121122745.uaot43rwpv2qqdvq@wfg-t540p.sh.intel.com>
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On Tue, 21 Nov 2017, Fengguang Wu wrote:

> On Tue, Nov 21, 2017 at 07:07:36PM +0800, Fengguang Wu wrote:
> > Hello,
> > 
> > FYI this happens in mainline kernel 4.14.0-03308-g670ffcc.
> > It looks like a new regression after 4.14.
> 
> Sorry it actually shows up since 4.12.

tracer_init_tracefs is probably a red herring. That's just a victim of some
sorts.

Thanks,

	tglx

From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Thomas Gleixner <tglx@linutronix.de>
To: lkp@lists.01.org
Subject: Re: [tracer_init_tracefs] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1]
Date: Tue, 21 Nov 2017 14:55:07 +0100
Message-ID: <alpine.DEB.2.20.1711211454240.1782@nanos>
In-Reply-To: <20171121122745.uaot43rwpv2qqdvq@wfg-t540p.sh.intel.com>
List-Id: <oe-lkp.lists.linux.dev>

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On Tue, 21 Nov 2017, Fengguang Wu wrote:

> On Tue, Nov 21, 2017 at 07:07:36PM +0800, Fengguang Wu wrote:
> > Hello,
> > =

> > FYI this happens in mainline kernel 4.14.0-03308-g670ffcc.
> > It looks like a new regression after 4.14.
> =

> Sorry it actually shows up since 4.12.

tracer_init_tracefs is probably a red herring. That's just a victim of some
sorts.

Thanks,

	tglx

--===============4505660740648415328==--