From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754497AbbDQObA (ORCPT ); Fri, 17 Apr 2015 10:31:00 -0400 Received: from arcturus.aphlor.org ([188.246.204.175]:38278 "EHLO arcturus.aphlor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754158AbbDQOay (ORCPT ); Fri, 17 Apr 2015 10:30:54 -0400 Date: Fri, 17 Apr 2015 10:30:46 -0400 From: Dave Jones To: Linux Kernel , john.stultz@linaro.org, tglx@linutronix.de Subject: Re: boot hang after TSC init. Message-ID: <20150417143046.GA20588@codemonkey.org.uk> Mail-Followup-To: Dave Jones , Linux Kernel , john.stultz@linaro.org, tglx@linutronix.de References: <20150417054554.GA32320@codemonkey.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150417054554.GA32320@codemonkey.org.uk> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -2.9 (--) X-Spam-Report: Spam report generated by SpamAssassin on "arcturus.aphlor.org" Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Authenticated-User: davej@codemonkey.org.uk Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 17, 2015 at 01:45:54AM -0400, Dave Jones wrote: > After updating to todays tree, I have two machines > that stop booting after TSC init. > > The last things printed are.. > > tsc: Refined TSC clocksource calibration: 2933.328 MHz > clocksource tsc: mask: 0xffffffffffffffff max_cycles: 0x2a483edfd02, max_idle_ns: 440795320705 ns > Switched to clocksource tsc > > Then the cursor blinks, but booting doesn't continue. > > I'll debug more in the morning.. False alarm. Or at least, not TSC related. It's the same blk-mq bug that Guenter Roeck diagnosed a few hours ago. Dave