Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932355AbaKTQyO (ORCPT ); Thu, 20 Nov 2014 11:54:14 -0500 Received: from mx1.redhat.com ([209.132.183.28]:47354 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932158AbaKTQyM (ORCPT ); Thu, 20 Nov 2014 11:54:12 -0500 Date: Thu, 20 Nov 2014 11:54:04 -0500 From: Vivek Goyal To: Dave Jones , Don Zickus , Thomas Gleixner , Linus Torvalds , Linux Kernel , the arch/x86 maintainers , WANG Chao , Baoquan He , Dave Young Subject: Re: frequent lockups in 3.18rc4 Message-ID: <20141120165404.GA30170@redhat.com> References: <20141118145234.GA7487@redhat.com> <20141118215540.GD35311@redhat.com> <20141118220254.GA2571@redhat.com> <20141119144105.GB108701@redhat.com> <20141119150333.GB2953@redhat.com> <20141119153852.GA16146@redhat.com> <20141119162806.GD2953@redhat.com> <20141120161055.GA8309@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141120161055.GA8309@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 20, 2014 at 11:10:55AM -0500, Dave Jones wrote: > On Wed, Nov 19, 2014 at 11:28:06AM -0500, Vivek Goyal wrote: > > > I am wondering may be in some cases we panic in second kernel and sit > > there. Probably we should append a kernel command line automatically > > say "panic=1" so that it reboots itself if second kernel panics. > > > > By any chance, have you enabled "CONFIG_RANDOMIZE_BASE"? If yes, please > > disable that as currently kexec/kdump stuff does not work with it. And > > it hangs very early in the boot process and I had to hook serial console > > to get following message on console. > > I did have that enabled. (Perhaps the kconfig should conflict?) Hi Dave, Can you please also send me your kernel config file. I will try that on my machine and see if I can reproduce the problem on my machine. Thanks Vivek -- 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/