From: Jiri Slaby <jslaby@suse.cz>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: WARNING: at drivers/tty/tty_buffer.c:476 flush_to_ldisc()
Date: Tue, 13 Nov 2012 20:55:34 +0100 [thread overview]
Message-ID: <50A2A5B6.4080600@suse.cz> (raw)
In-Reply-To: <20121113052026.GA26289@localhost>
On 11/13/2012 06:20 AM, Fengguang Wu wrote:
> Hi Jiri,
Hi,
> I got the following warning
>
> cat: /proc/1/maps: No such file or directory
> [ 72.249806] ------------[ cut here ]------------
> [ 72.250807] WARNING: at /c/kernel-tests/src/tip/drivers/tty/tty_buffer.c:476 flush_to_ldisc+0x5a/0x1ad()
> [ 72.252674] tty is NULL
> [ 72.253182] Pid: 15, comm: kworker/0:1 Not tainted 3.7.0-rc4-05821-gdb38463 #166
> [ 72.253672] Call Trace:
> [ 72.253672] [<ffffffff8103ccee>] warn_slowpath_common+0x62/0x79
> [ 72.256297] [<ffffffff8103cd73>] warn_slowpath_fmt+0x46/0x48
> [ 72.257292] [<ffffffff811e66c3>] flush_to_ldisc+0x5a/0x1ad
> [ 72.258478] [<ffffffff81053a6d>] process_one_work+0x246/0x44f
> [ 72.259640] [<ffffffff810539da>] ? process_one_work+0x1b3/0x44f
> [ 72.260817] [<ffffffff811e6669>] ? tty_buffer_free+0x61/0x61
> [ 72.261820] [<ffffffff81053fd2>] worker_thread+0x1ed/0x2c8
> [ 72.262883] [<ffffffff81053de5>] ? rescuer_thread+0x140/0x140
> [ 72.263878] [<ffffffff81058556>] kthread+0xd4/0xdc
> [ 72.264980] [<ffffffff810625d7>] ? finish_task_switch.constprop.79+0x7a/0xbf
> [ 72.266150] [<ffffffff81058482>] ? __kthread_parkme+0x61/0x61
> [ 72.267145] [<ffffffff81533bea>] ret_from_fork+0x7a/0xb0
> [ 72.268361] [<ffffffff81058482>] ? __kthread_parkme+0x61/0x61
>
> and it's bisected to
>
> commit ecbbfd44a08fa80e0d664814efd4c187721b85f6
Yes, I know about this already. Can you reproducible that easily given
you bisected that? I would love to be able to reproduce that...
thanks,
--
js
suse labs
next parent reply other threads:[~2012-11-13 19:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20121113052026.GA26289@localhost>
2012-11-13 19:55 ` Jiri Slaby [this message]
2012-11-14 13:52 ` Fengguang Wu
2013-01-19 22:44 Sedat Dilek
2013-01-19 22:51 ` Eric Sandeen
2013-01-19 22:57 ` Sedat Dilek
2013-01-20 0:14 ` Sedat Dilek
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