From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031366Ab2K3RVu (ORCPT ); Fri, 30 Nov 2012 12:21:50 -0500 Received: from mail-pa0-f46.google.com ([209.85.220.46]:42110 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933478Ab2K3RVr (ORCPT ); Fri, 30 Nov 2012 12:21:47 -0500 Date: Fri, 30 Nov 2012 09:21:43 -0800 From: Greg Kroah-Hartman To: Sebastian Andrzej Siewior Cc: Alan Cox , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Alan Cox Subject: Re: [PATCH RESEND] tty: don't dead lock while flushing workqueue Message-ID: <20121130172143.GA6635@kroah.com> References: <1353501542-14707-1-git-send-email-bigeasy@linutronix.de> <20121121140426.1860d093@pyramind.ukuu.org.uk> <20121127095357.GA3536@breakpoint.cc> <20121127172249.GB24592@kroah.com> <20121127180108.GA7376@linutronix.de> <20121130170938.GA7323@breakpoint.cc> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121130170938.GA7323@breakpoint.cc> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 30, 2012 at 06:09:38PM +0100, Sebastian Andrzej Siewior wrote: > On Tue, Nov 27, 2012 at 07:01:08PM +0100, Sebastian Andrzej Siewior wrote: > > Since commit 89c8d91e31f2 ("tty: localise the lock") I see a dead lock > > in one of my dummy_hcd + g_nokia test cases. The first run one was usually > > okay, the second often resulted in a splat by lockdep and the third was > > usually a dead lock. > > Ping. Can you feed this to your tty tree? :) It's really late in the release cycle, I would like to have this get more testing in linux-next before I send it to Linus, so I was going to wait until after 3.8-rc1 is out before doing it. I'm doing the same thing for all tty/serial patches right now, so don't feel like I'm picking on you :) thanks, greg k-h