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From: Jiri Slaby <jslaby@suse.cz>
To: Sasha Levin <levinsasha928@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>,
	gregkh@linuxfoundation.org, alan@linux.intel.com,
	linux-kernel@vger.kernel.org, Dave Jones <davej@redhat.com>
Subject: Re: [PATCH 21/21] TTY: move tty buffers to tty_port
Date: Wed, 31 Oct 2012 13:53:59 +0100	[thread overview]
Message-ID: <50911F67.3040303@suse.cz> (raw)
In-Reply-To: <50897E98.5080502@gmail.com>

On 10/25/2012 08:02 PM, Sasha Levin wrote:
> Fuzzing with trinity inside a KVM tools (lkvm) guest with -next kernel
> uncovered the following warning:

I cannot reproduce that :(. Do you still see it?

> [ 1339.448706] ------------[ cut here ]------------
> [ 1339.451224] WARNING: at drivers/tty/tty_buffer.c:476 flush_to_ldisc+0x60/0x200()
> [ 1339.454272] tty is NULLPid: 7147, comm: kworker/4:0 Tainted: G        W    3.7.0-rc2-next-20121025-sasha-00001-g673f98e-dirty #75
> [ 1339.458693] Call Trace:
> [ 1339.459410]  [<ffffffff81bb1ea0>] ? flush_to_ldisc+0x60/0x200
> [ 1339.461289]  [<ffffffff81109b86>] warn_slowpath_common+0x86/0xb0
> [ 1339.462992]  [<ffffffff81109c11>] warn_slowpath_fmt+0x41/0x50
> [ 1339.464772]  [<ffffffff81bb1ea0>] flush_to_ldisc+0x60/0x200

thanks,
-- 
js
suse labs

  parent reply	other threads:[~2012-10-31 12:54 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-18 20:26 [PATCH 00/21] TTY buffer in tty_port and other stuff Jiri Slaby
2012-10-18 20:26 ` [PATCH 01/21] TTY: devpts, don't care about TTY in devpts_get_tty Jiri Slaby
2012-10-18 20:26 ` [PATCH 02/21] TTY: devpts, return created inode from devpts_pty_new Jiri Slaby
2012-10-18 20:26 ` [PATCH 03/21] TTY: devpts, do not set driver_data Jiri Slaby
2012-10-18 20:26 ` [PATCH 04/21] TTY: devpts, document devpts inode operations Jiri Slaby
2012-10-18 20:26 ` [PATCH 05/21] TTY: move devpts kill to pty Jiri Slaby
2012-10-18 20:26 ` [PATCH 06/21] TTY: vt, fix paste_selection ldisc handling Jiri Slaby
2012-10-18 20:26 ` [PATCH 07/21] TTY: ldisc, wait for idle ldisc in release Jiri Slaby
2012-10-18 20:26 ` [PATCH 08/21] TTY: hci_ldisc, remove invalid check in open Jiri Slaby
2012-10-18 20:47   ` Marcel Holtmann
2012-10-18 20:26 ` [PATCH 09/21] TTY: n_tty, simplify read_buf+echo_buf allocation Jiri Slaby
2012-10-18 20:26 ` [PATCH 10/21] TTY: n_tty, remove bogus checks Jiri Slaby
2012-10-18 20:26 ` [PATCH 11/21] TTY: audit, stop accessing tty->icount Jiri Slaby
2012-10-18 20:26 ` [PATCH 12/21] TTY: n_tty, add ldisc data to n_tty Jiri Slaby
2012-10-18 20:26 ` [PATCH 13/21] TTY: move ldisc data from tty_struct: simple members Jiri Slaby
2012-10-18 20:26 ` [PATCH 14/21] TTY: move ldisc data from tty_struct: bitmaps Jiri Slaby
2012-10-18 20:26 ` [PATCH 15/21] TTY: move ldisc data from tty_struct: read_* and echo_* and canon_* stuff Jiri Slaby
2012-10-18 20:26 ` [PATCH 16/21] TTY: move ldisc data from tty_struct: locks Jiri Slaby
2012-10-18 20:26 ` [PATCH 17/21] TTY: n_tty, propagate n_tty_data Jiri Slaby
2012-10-18 20:26 ` [PATCH 18/21] TTY: move TTY_FLUSH* flags to tty_port Jiri Slaby
2012-10-18 20:26 ` [PATCH 19/21] TTY: tty_buffer, cache pointer to tty->buf Jiri Slaby
2012-10-18 20:26 ` [PATCH 20/21] TTY: add port -> tty link Jiri Slaby
2012-10-18 20:26 ` [PATCH 21/21] TTY: move tty buffers to tty_port Jiri Slaby
2012-10-25 18:02   ` Sasha Levin
2012-10-25 18:08     ` Greg KH
2012-10-31 12:53     ` Jiri Slaby [this message]
2012-10-31 15:30       ` Sasha Levin
2012-10-31 15:32         ` Jiri Slaby
2012-10-31 15:59           ` Sasha Levin
2012-11-02 15:51             ` Jiri Slaby
2012-11-02 16:07               ` Sasha Levin
2012-11-02 16:18                 ` Jiri Slaby
2012-11-02 16:23                   ` Sasha Levin
2012-11-03  2:03                   ` Sasha Levin
2012-11-03 15:55                     ` Jiri Slaby
2012-11-03 23:06                       ` Sasha Levin
2012-11-04  0:53                         ` Sasha Levin
2012-11-27 19:57                           ` Peter Hurley
2012-11-30 23:52                             ` Sasha Levin
2012-12-01 14:59                               ` flush_to_ldisc accesses tty after free (was: [PATCH 21/21] TTY: move tty buffers to tty_port) Peter Hurley
2012-12-01 20:06                                 ` Peter Hurley
2012-12-02 19:57                                   ` Peter Hurley
2012-12-04 19:21                                 ` Ilya Zykov
2012-10-31 20:10           ` [PATCH 21/21] TTY: move tty buffers to tty_port Sasha Levin
2012-10-18 21:12 ` [PATCH 00/21] TTY buffer in tty_port and other stuff Greg KH
2012-10-22 14:57 ` Alan Cox
2012-10-22 23:59 ` Greg KH

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