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From: J Freyensee <james_p_freyensee@linux.intel.com>
To: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>,
	Dmitry Vyukov <dvyukov@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>, LKML <linux-kernel@vger.kernel.org>,
	syzkaller <syzkaller@googlegroups.com>,
	Kostya Serebryany <kcc@google.com>,
	Alexander Potapenko <glider@google.com>,
	Sasha Levin <sasha.levin@oracle.com>,
	Eric Dumazet <edumazet@google.com>
Subject: Re: tty: deadlock between n_tracerouter_receivebuf and flush_to_ldisc
Date: Tue, 19 Jan 2016 18:09:06 -0800	[thread overview]
Message-ID: <1453255746.3122.44.camel@linux.intel.com> (raw)
In-Reply-To: <20160115163300.063c224d@lxorguk.ukuu.org.uk>

On Fri, 2016-01-15 at 16:33 +0000, One Thousand Gnomes wrote:
> On Fri, 15 Jan 2016 08:51:39 +0100
> Dmitry Vyukov <dvyukov@google.com> wrote:
> 
> > On Wed, Dec 30, 2015 at 11:44 AM, Dmitry Vyukov <dvyukov@google.com
> > > wrote:
> > > Hello,
> > > 
> > > I've got the following lock order inversion report on
> > > 8513342170278468bac126640a5d2d12ffbff106 (Dec 28). Unfortunately
> > > I
> > > failed to find a reproducer for it.
> > 
> > Ping. This is the most frequent failure during my testing now. J
> > Freyensee, you seem to wrote drivers/tty/n_tracerouter.c. Please
> > take
> > a look. Thanks.

I did look at the report but didn't see how n_tracerouter could be
causing the issue.  I apologize for not responding, and I thank you so
very much for providing the thorough explanation, Alan.

Jay

> 
> Alan

  parent reply	other threads:[~2016-01-20  2:09 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-30 10:44 tty: deadlock between n_tracerouter_receivebuf and flush_to_ldisc Dmitry Vyukov
2016-01-15  7:51 ` Dmitry Vyukov
2016-01-15 16:33   ` One Thousand Gnomes
2016-01-15 17:22     ` Dmitry Vyukov
2016-01-20  9:36       ` Dmitry Vyukov
2016-01-20 11:44         ` Peter Zijlstra
2016-01-20 11:54           ` Dmitry Vyukov
2016-01-20 12:07             ` Peter Zijlstra
2016-01-20 14:58               ` One Thousand Gnomes
2016-01-20 15:16                 ` Dmitry Vyukov
2016-01-20 16:32                   ` Peter Zijlstra
2016-01-20  2:09     ` J Freyensee [this message]
2016-01-20 12:47 ` Jiri Slaby
2016-01-20 13:02 ` Peter Zijlstra
2016-01-20 13:07   ` Dmitry Vyukov
2016-01-20 16:08   ` Peter Hurley
2016-01-20 20:47     ` Peter Hurley
2016-01-21 10:06     ` Dmitry Vyukov
2016-01-21 10:20       ` Peter Zijlstra
2016-01-21 17:51         ` Peter Hurley
2016-01-22 14:10           ` Dmitry Vyukov
2016-01-25 16:56             ` Peter Hurley
2016-01-21 17:43       ` Peter Hurley
2016-02-03  4:24         ` Peter Hurley
2016-02-03 17:32           ` Dmitry Vyukov
2016-02-03 19:09             ` Peter Hurley
2016-02-04 12:39               ` Dmitry Vyukov
2016-02-04 13:17                 ` Dmitry Vyukov
2016-02-04 18:46                   ` Peter Hurley
2016-02-04 18:48                     ` Dmitry Vyukov
2016-02-05 21:22                       ` Dmitry Vyukov

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