Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753620AbZCJDkL (ORCPT ); Mon, 9 Mar 2009 23:40:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752044AbZCJDj4 (ORCPT ); Mon, 9 Mar 2009 23:39:56 -0400 Received: from cpsmtpm-eml105.kpnxchange.com ([195.121.3.9]:53542 "EHLO CPSMTPM-EML105.kpnxchange.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752020AbZCJDjz (ORCPT ); Mon, 9 Mar 2009 23:39:55 -0400 From: Frans Pop To: John Stultz Subject: Re: [BUG,2.6.28,s390] Fails to boot in Hercules S/390 emulator Date: Tue, 10 Mar 2009 04:37:27 +0100 User-Agent: KMail/1.9.9 Cc: linux-s390@vger.kernel.org, Roman Zippel , Thomas Gleixner , Linux Kernel Mailing List References: <200903080230.10099.elendil@planet.nl> <1236654582.3792.7.camel@jstultz-laptop> In-Reply-To: <1236654582.3792.7.camel@jstultz-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200903100437.29280.elendil@planet.nl> X-OriginalArrivalTime: 10 Mar 2009 03:37:30.0033 (UTC) FILETIME=[8A2B4210:01C9A131] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1120 Lines: 32 On Tuesday 10 March 2009, John Stultz wrote: > > After reverting 5cd1c9c5cf30 and the somewhat related 6c9bacb41c10 on > > top of 2.6.28.7, the system boots OK again [1]. > > Huh. No clue right off. What clocksource is in use on this system? $ cat /sys/devices/system/clocksource/clocksource0/current_clocksource tod (That's from 2.6.26.) > Also can you provide the output with the following patch? I already did something similar. Did you see my follow-up mail? I added: + if (unlikely(clock->xtime_nsec < ((s64)xtime.tv_nsec << clock->shift))) + printk("Negative result: %llu - %lld\n", + (unsigned long long)clock->xtime_nsec, + (long long)((s64)xtime.tv_nsec << clock->shift)); Which resulted in: Negative result: 166039808000 - 166039808256 Would you still like me to try your patch? Cheers, FJP -- 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/