Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754863Ab1CQRH2 (ORCPT ); Thu, 17 Mar 2011 13:07:28 -0400 Received: from out01.mta.xmission.com ([166.70.13.231]:44295 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754688Ab1CQRH0 convert rfc822-to-8bit (ORCPT ); Thu, 17 Mar 2011 13:07:26 -0400 From: ebiederm@xmission.com (Eric W. Biederman) To: Cyril Hrubis Cc: Eric Miao , Pavel Machek , rpurdie@rpsys.net, lenz@cs.wisc.edu, kernel list , arminlitzel@web.de, thommycheck@gmail.com, linux-arm-kernel , dbaryshkov@gmail.com, omegamoon@gmail.com, utx@penguin.cz, zaurus-devel@www.linuxtogo.org, Marek Vasut References: <20110317064523.GA1995@ucw.cz> <20110317125839.GB21290@atrey.karlin.mff.cuni.cz> Date: Thu, 17 Mar 2011 10:07:12 -0700 In-Reply-To: <20110317125839.GB21290@atrey.karlin.mff.cuni.cz> (Cyril Hrubis's message of "Thu, 17 Mar 2011 13:58:39 +0100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-XM-SPF: eid=;;;mid=;;;hst=in01.mta.xmission.com;;;ip=98.207.153.68;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1+/8R4jBE2ssk3npE6WyT1hIqc2sEsTchg= X-SA-Exim-Connect-IP: 98.207.153.68 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: T_TM2_M_HEADER_IN_MSG * -3.0 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa06 1397; Body=1 Fuz1=1 Fuz2=1] * 0.4 UNTRUSTED_Relay Comes from a non-trusted relay X-Spam-DCC: XMission; sa06 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Cyril Hrubis X-Spam-Relay-Country: Subject: Re: reboot/kexec in 2.6.38 X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Fri, 06 Aug 2010 16:31:04 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 978 Lines: 27 Cyril Hrubis writes: > Hi! >> > I got report that  reboot/kexec does not work in recent kernels. >> > >> > I tried both kexec and reboot in 2.6.38, and it worked ok. Maybe >> > config issue? >> >> I think it's config issue. Never heard of this. >> > > I've seen that on my zaurus a month or two ago. When kexeced to pxa-linux-2.6 > then tried to kexec again. The last thing I've seen was Bye on the framebuffer > console and the machine freezed. The basic kexec code has been stable and solid for a long time so kexec failures are almost always hardware interaction problems. Someone not stopping dma, or someone not putting the hardware in a state that the next kernel can figure out how to initialize it. Eric -- 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/