From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758906Ab2K3RMA (ORCPT ); Fri, 30 Nov 2012 12:12:00 -0500 Received: from Chamillionaire.breakpoint.cc ([80.244.247.6]:34513 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758543Ab2K3RJo (ORCPT ); Fri, 30 Nov 2012 12:09:44 -0500 Date: Fri, 30 Nov 2012 18:09:38 +0100 From: Sebastian Andrzej Siewior To: Greg Kroah-Hartman 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: <20121130170938.GA7323@breakpoint.cc> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121127180108.GA7376@linutronix.de> 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 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? :) Sebastian