From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751590Ab3HTUIE (ORCPT ); Tue, 20 Aug 2013 16:08:04 -0400 Received: from s3.sipsolutions.net ([144.76.43.152]:56322 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750908Ab3HTUIC (ORCPT ); Tue, 20 Aug 2013 16:08:02 -0400 Message-ID: <1377029273.13829.31.camel@jlt4.sipsolutions.net> Subject: Re: Linux 3.0.92 From: Johannes Berg To: Guenter Roeck Cc: Greg KH , Linus Torvalds , Hugh Dickins , Borislav Petkov , Linux Kernel Mailing List , Andrew Morton , stable , lwn@lwn.net Date: Tue, 20 Aug 2013 22:07:53 +0200 In-Reply-To: <20130820200035.GA2524@roeck-us.net> (sfid-20130820_220040_728852_29A311B1) References: <20130820155735.GA2805@kroah.com> <20130820164343.GA3958@kroah.com> <20130820200035.GA2524@roeck-us.net> (sfid-20130820_220040_728852_29A311B1) Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.6.3-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2013-08-20 at 13:00 -0700, Guenter Roeck wrote: > Does this patch have to be reverted in 3.10 as well ? Linus' e-mail seems to > suggest it, but Shuah didn't see the problem there. I ran a quick test with > 3.10.8 on an x86 system and did not see a problem either, at least not > immediately. Yes, it does. I'm not sure how hard it is to actually run into the deadlock, though Sergey Senozhatsky said he had seen it. The patch I just posted with the RCU protection actually pretty much reverts my other patch as part of it. johannes