Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755287AbbBLLJQ (ORCPT ); Thu, 12 Feb 2015 06:09:16 -0500 Received: from mail-vc0-f172.google.com ([209.85.220.172]:52444 "EHLO mail-vc0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754052AbbBLLJP (ORCPT ); Thu, 12 Feb 2015 06:09:15 -0500 MIME-Version: 1.0 Date: Thu, 12 Feb 2015 12:09:13 +0100 Message-ID: Subject: Re: frequent lockups in 3.18rc4 From: Martin van Es To: Linus Torvalds Cc: 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 Content-Length: 1892 Lines: 51 To follow up on this long standing promise to bisect. I've made two attempts at bisecting and both landed in limbo. It's hard to explain but it feels like this bug has quantum properties; I know for sure it's present in 3.17 and not in 3.16(.7). But once I start bisecting it gets less pronounced. I know it sound vague, but the best explanations I get come up with are: - The out-of-kernel dvb-c driver and hardware are playing funny games (although being absolutely stable in 3.16?) - and/or the problem consists of two or more commits that independently don't express themselves like I see in 3.17? So, my second bisecting ended at 3be738ad55d8e2b9d949eb0d830de5aa4d4f8e05, which is nonsense because it's a commit to a staging module that I don't even compile. Best I can come up with now is try the next mainline that has all the fixes and ideas in this thread incorporated. Would that be 3.19? I'm sorry I couldn't be more helpful. Best regards, Martin On Sat, Dec 6, 2014 at 10:14 PM, Martin van Es wrote: > On Sat, Dec 6, 2014 at 9:09 PM, Linus Torvalds > wrote: >> On Sat, Dec 6, 2014 at 8:22 AM, Martin van Es wrote: >>> >>> Hope this may help in finding the right direction for this bug? >> >> If you can reproduce it with your spare J1900 system and could perhaps >> bisect it there, that would be a huge help. >> > > I'll give it a shot and see if I can get to freeze it on 3.17.3 as a > start by playing content from the prd backend, but don't expect fast > respons times... busy man... > > M. -- If 'but' was any useful, it would be a logic operator -- 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/