Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759174AbaLKWgo (ORCPT ); Thu, 11 Dec 2014 17:36:44 -0500 Received: from mail-qa0-f42.google.com ([209.85.216.42]:47212 "EHLO mail-qa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758933AbaLKWgm (ORCPT ); Thu, 11 Dec 2014 17:36:42 -0500 MIME-Version: 1.0 In-Reply-To: <548A122C.8000906@oracle.com> References: <20141201230339.GA20487@ret.masoncoding.com> <1417529606.3924.26.camel@maggy.simpson.net> <1417540493.21136.3@mail.thefacebook.com> <20141203184111.GA32005@redhat.com> <20141205171501.GA1320@redhat.com> <1417806247.4845.1@mail.thefacebook.com> <20141211145408.GB16800@redhat.com> <548A122C.8000906@oracle.com> Date: Thu, 11 Dec 2014 14:36:41 -0800 X-Google-Sender-Auth: sKh6GUzDphjG1YKvsLI78IeqmEc Message-ID: Subject: Re: frequent lockups in 3.18rc4 From: Linus Torvalds To: Sasha Levin Cc: Dave Jones , Chris Mason , Mike Galbraith , Ingo Molnar , Peter Zijlstra , =?UTF-8?Q?D=C3=A2niel_Fraga?= , "Paul E. McKenney" , Linux Kernel Mailing List Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 11, 2014 at 1:52 PM, Sasha Levin wrote: > > Is it possible that Dave and myself were seeing the same problem after > all? Could be. You do have commonalities, even if the actual symptoms then differ. And while it looked different when you could trigger it with 3.16 but DaveJ couldn't, that's up in the air now that I doubt that 3.16 really is ok for DaveJ after all.. And you might have a better luck bisecting it, since you seem to be able to trigger your RCU lockup much more quickly (and apparently reliably? Correct?) Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/