Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754502Ab0KISCP (ORCPT ); Tue, 9 Nov 2010 13:02:15 -0500 Received: from s15228384.onlinehome-server.info ([87.106.30.177]:60818 "EHLO mail.x86-64.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752442Ab0KISCO (ORCPT ); Tue, 9 Nov 2010 13:02:14 -0500 Date: Tue, 9 Nov 2010 19:01:23 +0100 From: Borislav Petkov To: Andrew Lutomirski Cc: Clemens Ladisch , "linux-kernel@vger.kernel.org" , Thomas Gleixner , Peter Zijlstra , Ingo Molnar , "H. Peter Anvin" , x86 Subject: Re: HPET (?) related hangs and breakage in 2.6.35,36 Message-ID: <20101109180123.GB31121@aftab> References: <4CD966D8.4000602@ladisch.de> <20101109153805.GB3146@kryptos.osrc.amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1130 Lines: 31 On Tue, Nov 09, 2010 at 12:44:48PM -0500, Andrew Lutomirski wrote: > I may have just reproduced after a couple of days of uptime it in > 2.6.36 with hpet=disable (in any case, the system hung and netconsole > didn't work). > > I'm currently testing the hpet_min_tick stuff, backported to 2.6.36, > with hpet on. Haven't had a problem yet, but I'll see what happens > after a few hours. So far, it said: > > ACPI: HPET id: 0x8086a301 base: 0xfed00000 min tick: 128 This doesn't say what your BIOS has set it to originally. For that, do hexdump -C /sys/firmware/acpi/tables/HPET and check what does the u16 little endian value at offset 0x35 say. -- Regards/Gruss, Boris. Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 -- 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/