From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752211Ab3ASWwN (ORCPT ); Sat, 19 Jan 2013 17:52:13 -0500 Received: from mx1.redhat.com ([209.132.183.28]:62255 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751152Ab3ASWwM (ORCPT ); Sat, 19 Jan 2013 17:52:12 -0500 Message-ID: <50FB2364.8090403@redhat.com> Date: Sat, 19 Jan 2013 16:51:16 -0600 From: Eric Sandeen User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130107 Thunderbird/17.0.2 MIME-Version: 1.0 To: sedat.dilek@gmail.com CC: Dave Jones , Jiri Slaby , Greg Kroah-Hartman , Ilya Zykov , LKML , linux-next , linux-serial@vger.kernel.org, Stephen Rothwell , Jan Kara , "Theodore Ts'o" , linux-fsdevel Subject: Re: WARNING: at drivers/tty/tty_buffer.c:476 flush_to_ldisc() References: In-Reply-To: X-Enigmail-Version: 1.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 1/19/13 4:44 PM, Sedat Dilek wrote: > Hi Dave, > > I suspected after initial testing a problem in TTY and applied two patches. > After more testing the root cause was a problem in JBD2. > A patch from Eric helped! oh, excellent ;) Helped what, exactly? > Follow the thread in [1] for more details. > > If you are on Linux-Next (next-20130118) you need the following three patches. > > Ilya Zykov (2): > tty: Correct tty buffer flush. > tty: Add driver unthrottle in ioctl(...,TCFLSH,..). > > Eric Sandeen (1): > jbd2: don't wake kjournald unnecessarily Hum, I would not have expected this to *matter*, I thought it was just a perf optimization. Hm. What do you think it fixed, exactly? (sorry, have not followed that thread, busy elsewhere ATM) -eric > Hope this helps you. > > Regards, > - Sedat - > > [0] http://marc.info/?t=135862023700004&r=1&w=2 > [1] http://marc.info/?l=linux-serial&m=135860500714909&w=2 > [2] http://git.kernel.org/?p=linux/kernel/git/gregkh/tty.git;a=commitdiff;h=a1bf9584429d61b7096f93ae09325e1ba538e9e8 > [3] http://patchwork.ozlabs.org/patch/207237/ >