Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753286AbdLMP3T (ORCPT ); Wed, 13 Dec 2017 10:29:19 -0500 Received: from mail-qt0-f177.google.com ([209.85.216.177]:38109 "EHLO mail-qt0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752978AbdLMP3S (ORCPT ); Wed, 13 Dec 2017 10:29:18 -0500 X-Google-Smtp-Source: ACJfBovcn7RdPpnvjnVbq/nVwcuPfUpUlKOlJKuj485rfr59TMKrzO3jwCuRQAopHEDvx9dpLHCrvw== Date: Wed, 13 Dec 2017 07:29:14 -0800 From: Tejun Heo To: Laura Abbott Cc: Zefan Li , linux-kernel@vger.kernel.org, regressions@leemhuis.info Subject: Re: Crash in cgroup_procs_show Message-ID: <20171213152914.GN3919388@devbig577.frc2.facebook.com> References: <39625861-99c0-1c15-08a6-49b9d678c4c2@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <39625861-99c0-1c15-08a6-49b9d678c4c2@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 400 Lines: 17 Hello, Laura. On Tue, Dec 12, 2017 at 04:38:33PM -0800, Laura Abbott wrote: > Hi, > > Fedora got a bug report on 4.14.4 of a crash on > reboot https://bugzilla.redhat.com/show_bug.cgi?id=1525279 > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000254 > IP: __task_pid_nr_ns+0xc7/0xf0 Any chance you can map this back to the source line with addr2line? Thanks. -- tejun