Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752055AbaKGLxU (ORCPT ); Fri, 7 Nov 2014 06:53:20 -0500 Received: from cpsmtpb-ews03.kpnxchange.com ([213.75.39.6]:59422 "EHLO cpsmtpb-ews03.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751281AbaKGLxQ (ORCPT ); Fri, 7 Nov 2014 06:53:16 -0500 Message-ID: <1415361193.4390.46.camel@x220> Subject: Re: [REGRESSION] in 3.18-rc1: ppp crashes kernel From: Paul Bolle To: Stefan Seyfried Cc: LKML Date: Fri, 07 Nov 2014 12:53:13 +0100 In-Reply-To: <545CA8B6.2060608@message-id.googlemail.com> References: <545CA8B6.2060608@message-id.googlemail.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4 (3.10.4-4.fc20) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 07 Nov 2014 11:53:14.0281 (UTC) FILETIME=[69625190:01CFFA81] X-RcptDomain: vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2014-11-07 at 12:10 +0100, Stefan Seyfried wrote: > I bisected the issue multiple times and always arrived at > > # first bad commit: [d6dd50e07c5bec00db2005969b1a01f8ca3d25ef] Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > > which is a merge commit unfortunately. That merge commit actually does add some code: git show d6dd50e07c5bec00db2005969b1a01f8ca3d25ef [...] diff --cc init/main.c index 8af2f1abfe38,e3c4cdd94d5b..c5c11da6c4e1 --- a/init/main.c +++ b/init/main.c @@@ -583,6 -585,6 +583,7 @@@ asmlinkage __visible void __init start_ early_irq_init(); init_IRQ(); tick_init(); ++ rcu_init_nohz(); init_timers(); hrtimers_init(); softirq_init(); Wild guess: is CONFIG_RCU_NOCB_CPU perhaps set in your v3.18-rc3 .config? Paul Bolle -- 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/