From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: 3.[68]-rt: CONFIG_PROVE_LOCKING + CONFIG_DEBUG_FORCE_WEAK_PER_CPU = boot time swap_lock deadlock Date: Tue, 23 Apr 2013 05:13:11 +0200 Message-ID: <1366686791.4731.16.camel@marge.simpson.net> References: <1365937652.4717.25.camel@marge.simpson.net> <1366685096.9609.145.camel@gandalf.local.home> <1366685257.9609.147.camel@gandalf.local.home> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: RT , Thomas Gleixner To: Steven Rostedt Return-path: Received: from moutng.kundenserver.de ([212.227.126.171]:59282 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754117Ab3DWDNO (ORCPT ); Mon, 22 Apr 2013 23:13:14 -0400 In-Reply-To: <1366685257.9609.147.camel@gandalf.local.home> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On Mon, 2013-04-22 at 22:47 -0400, Steven Rostedt wrote: > Yeah, the bug is with the swap_lock not being unique (do a git grep > swap_lock), and it being weak made that per_cpu swap_lock the same lock > as the other locks. > > Apply my patch and your bug should go away. Aha, so the bug is certainly dead. I'll test anyway, but you can take no news as confirmation that it's dead. -Mike