Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932136AbWAQQnL (ORCPT ); Tue, 17 Jan 2006 11:43:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932142AbWAQQnL (ORCPT ); Tue, 17 Jan 2006 11:43:11 -0500 Received: from 213-140-2-69.ip.fastwebnet.it ([213.140.2.69]:2706 "EHLO aa002msg.fastwebnet.it") by vger.kernel.org with ESMTP id S932136AbWAQQnK (ORCPT ); Tue, 17 Jan 2006 11:43:10 -0500 Date: Tue, 17 Jan 2006 17:43:51 +0100 From: Mattia Dongili To: john stultz Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: first bisection results in -mm3 [was: Re: 2.6.15-mm2: reiser3 oops on suspend and more (bonus oops shot!)] Message-ID: <20060117164351.GA3591@inferi.kami.home> Mail-Followup-To: john stultz , Andrew Morton , linux-kernel@vger.kernel.org References: <20060111100016.GC2574@elf.ucw.cz> <20060110235554.GA3527@inferi.kami.home> <20060110170037.4a614245.akpm@osdl.org> <20060111184027.GB4735@inferi.kami.home> <20060112220825.GA3490@inferi.kami.home> <1137108362.2890.141.camel@cog.beaverton.ibm.com> <20060114120816.GA3554@inferi.kami.home> <1137442582.27699.12.camel@cog.beaverton.ibm.com> <20060116204057.GC3639@inferi.kami.home> <1137447763.27699.27.camel@cog.beaverton.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1137447763.27699.27.camel@cog.beaverton.ibm.com> X-Message-Flag: Cranky? Try Free Software instead! X-Operating-System: Linux 2.6.15-mm4-2 i686 X-Editor: Vim http://www.vim.org/ X-Disclaimer: Buh! User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3241 Lines: 76 On Mon, Jan 16, 2006 at 01:42:43PM -0800, john stultz wrote: > On Mon, 2006-01-16 at 21:40 +0100, Mattia Dongili wrote: [...] > > # date > > Mon Jan 16 21:29:26 CET 2006 > > now count with me 1..2..3..4..5 > > # date > > Mon Jan 16 21:29:27 CET 2006 > > > > I'd say the time is far from being accurate. > > Ok, as I thought. Although 5:1 seems a bit large for cpufreq scaling. It > does appear that the TSC is halting. it's far worse than 5:1 actually I wasn't only counting to 5 :) [...] > > I'll be happy to test new patches if necessary (I'm running -mm4) > > Below is a patch that should provide a bit more debug info. If you > could, boot up w/ it (be sure to enable CONFIG_PARANOID_GENERIC_TIME) > and send me your dmesg. done, I did put it here[1] and added some comments at the end of the file to better show what was going on. [1]: http://oioio.altervista.org/linux/tsc_debug.html and also included at the end of this mail as plain text w/o comments Will test the other patch now. Oh, by the way, after I caught the above dmesg I got this: [ 556.512000] TSC: Marked unstable [ 556.512000] [] show_trace+0x13/0x20 [ 556.512000] [] dump_stack+0x1e/0x20 [ 556.512000] [] mark_tsc_unstable+0x27/0x40 [ 556.512000] [] time_cpufreq_notifier+0x19b/0x1b0 [ 556.512000] [] notifier_call_chain+0x2d/0x50 [ 556.512000] [] cpufreq_notify_transition+0xb1/0x170 [ 556.512000] [] speedstep_target+0xad/0xe0 [speedstep_ich] [ 556.512000] [] __cpufreq_driver_target+0x77/0x80 [ 556.512000] [] do_dbs_timer+0x1be/0x200 [cpufreq_ondemand] [ 556.512000] [] run_workqueue+0x9a/0x140 [ 556.512000] [] worker_thread+0x107/0x140 [ 556.512000] [] kthread+0xd9/0xe0 [ 556.512000] [] kernel_thread_helper+0x5/0x10 [ 556.532000] check_periodic_interval: Long interval! 135987395 ns. [ 556.532000] Something may be blocking interrupts. [ 563.016000] TSC: Marked unstable [ 563.016000] [] show_trace+0x13/0x20 [ 563.016000] [] dump_stack+0x1e/0x20 [ 563.016000] [] mark_tsc_unstable+0x27/0x40 [ 563.016000] [] time_cpufreq_notifier+0x19b/0x1b0 [ 563.016000] [] notifier_call_chain+0x2d/0x50 [ 563.016000] [] cpufreq_notify_transition+0x13c/0x170 [ 563.016000] [] speedstep_target+0xd0/0xe0 [speedstep_ich] [ 563.016000] [] __cpufreq_driver_target+0x77/0x80 [ 563.016000] [] do_dbs_timer+0x13e/0x200 [cpufreq_ondemand] [ 563.016000] [] run_workqueue+0x9a/0x140 [ 563.016000] [] worker_thread+0x107/0x140 [ 563.016000] [] kthread+0xd9/0xe0 [ 563.016000] [] kernel_thread_helper+0x5/0x10 [ 563.032000] check_periodic_interval: Long interval! 140156640 ns. [ 563.032000] Something may be blocking interrupts. [ 576.756000] Time: jiffies clocksource has been installed. -- mattia :wq! - 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/