Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751074Ab1EDHbe (ORCPT ); Wed, 4 May 2011 03:31:34 -0400 Received: from christianhoffmann.info ([88.175.101.52]:48596 "EHLO christianhoffmann.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750837Ab1EDHbd (ORCPT ); Wed, 4 May 2011 03:31:33 -0400 Message-ID: <4DC100D0.1030302@christianhoffmann.info> Date: Wed, 04 May 2011 09:31:28 +0200 From: Christian Hoffmann User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110419 Lightning/1.0b2 Thunderbird/3.1.9 MIME-Version: 1.0 To: john stultz CC: Linux Kernel Mailing List Subject: Re: Long timeout when booting >= 2.6.38 References: <4DBEFCBA.3070501@christianhoffmann.info> <1304363375.3226.5.camel@work-vm> <4DBF1725.3030800@christianhoffmann.info> <1304372955.3226.15.camel@work-vm> <4DBF2FB4.8000304@christianhoffmann.info> <1304470839.3037.12.camel@work-vm> In-Reply-To: <1304470839.3037.12.camel@work-vm> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1589 Lines: 44 On 05/04/2011 03:00 AM, john stultz wrote: > On Tue, 2011-05-03 at 00:27 +0200, Christian Hoffmann wrote: >>> >>> Can you reproduce the hang booting with "clocksource=hpet" and >>> "clocksource=acpi_pm" ? >> >> Both hang also. > > Sorry, one more clarifying point here: > > When you used either clocksource=hpet/clocksource=acpi_pm did the > behavior of the system seem different after booting? In other words: > does running time waiting a few seconds and then running time again show > the expected passage of time? Were any following hangs seen, or was it > only the first one at boot? Hi, with hpet no problems seen. No further hangs either. In fact, switching to acpi_pm doesn't seem to work: $ dmesg | grep clock [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch-broken+ root=/dev/mapper/vg-root ro quiet splash vt.handoff=7 clocksource=acpi_pm [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch-broken+ root=/dev/mapper/vg-root ro quiet splash vt.handoff=7 clocksource=acpi_pm [ 0.000000] hpet clockevent registered [ 1.413835] Switching to clocksource hpet [ 1.420762] Override clocksource acpi_pm is not HRT compatible. Cannot switch while in HRT/NOHZ mode [ 147.940143] Refined TSC clocksource calibration: 2809.409 MHz. [ 147.940147] Switching to clocksource tsc Regards, Chris -- 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/