Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751270AbVKCWKi (ORCPT ); Thu, 3 Nov 2005 17:10:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751393AbVKCWKi (ORCPT ); Thu, 3 Nov 2005 17:10:38 -0500 Received: from www.eclis.ch ([144.85.15.72]:19082 "EHLO mail.eclis.ch") by vger.kernel.org with ESMTP id S1751270AbVKCWKh (ORCPT ); Thu, 3 Nov 2005 17:10:37 -0500 Message-ID: <436A8ADB.2090307@eclis.ch> Date: Thu, 03 Nov 2005 23:10:35 +0100 From: Jean-Christian de Rivaz User-Agent: Mozilla Thunderbird 1.0.2 (X11/20051002) X-Accept-Language: fr, en MIME-Version: 1.0 To: john stultz Cc: linux-kernel@vger.kernel.org, dean@arctic.org, zippel@linux-m68k.org Subject: Re: NTP broken with 2.6.14 References: <4369464B.6040707@eclis.ch> <1130973717.27168.504.camel@cog.beaverton.ibm.com> <43694DD1.3020908@eclis.ch> <1130976935.27168.512.camel@cog.beaverton.ibm.com> <43695D94.10901@eclis.ch> <1130980031.27168.527.camel@cog.beaverton.ibm.com> <43697550.7030400@eclis.ch> <1131046348.27168.537.camel@cog.beaverton.ibm.com> <436A7D4B.8080109@eclis.ch> <1131054087.27168.595.camel@cog.beaverton.ibm.com> In-Reply-To: <1131054087.27168.595.camel@cog.beaverton.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2176 Lines: 56 john stultz a ?crit : > On Thu, 2005-11-03 at 22:12 +0100, Jean-Christian de Rivaz wrote: > >>A have tested 7 differents vanilla kernel on the same suspect hardware: >> >> 2.6.8 : ntpd working : drift from -77ppm to -144ppm >> 2.6.9 : ntpd working : drift from -99ppm to -231ppm >> 2.6.10 : ntpd failed : drift from -37825ppm to -29912ppm >> 2.6.12 : ntpd failed : drift from -43429ppm to -45251ppm > > > Ok, that makes it pretty clear we have a regression w/ 2.6.10. I really > appreciate your helping narrow down this issue. If you have the time, > could you test the three 2.6.10-rcX patches? > > You can find them here: > ftp://ftp.kernel.org/pub/linux/kernel/v2.6/testing/ > > And they apply independently (not cumulatively) ontop of 2.6.9 I will try, but compiling the kernels take time even with 3 machines (one per kernel version)... I compared the dmesg log of the different kernel, but since I don't know what I should find it's a little difficult. There is many differences between each kernels. Despit that, I noticed this difference between the kernel 2.6.9 (ntps working) and the kernel 2.6.10 (ntpd failed): --- linux-2.6.9.txt 2005-11-03 22:49:29.000000000 +0100 +++ linux-2.6.10.txt 2005-11-03 22:48:41.000000000 +0100 [...snip...] @@ -67,16 +68,12 @@ Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. ENABLING IO-APIC IRQs - vector=0x31 pin1=2 pin2=-1 - 8254 timer not connected to IO-APIC - ...trying to set up timer (IRQ0) through the 8259A ... failed. - ...trying to set up timer as Virtual Wire IRQ... failed. - ...trying to set up timer as ExtINT IRQ... works. + vector=0x31 pin1=0 pin2=-1 Registered protocol family 16 PCI BIOS revision 2.10 entry at 0xfbbb0, last bus=3 Using configuration type 1 [..snip...] Maybe a way to go ? -- Jean-Christian de Rivaz - 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/