From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751809AbXCDQvL (ORCPT ); Sun, 4 Mar 2007 11:51:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751866AbXCDQvL (ORCPT ); Sun, 4 Mar 2007 11:51:11 -0500 Received: from nf-out-0910.google.com ([64.233.182.190]:51312 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751809AbXCDQvK (ORCPT ); Sun, 4 Mar 2007 11:51:10 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:subject:from:to:cc:in-reply-to:references:content-type:date:message-id:mime-version:x-mailer:content-transfer-encoding; b=Rbeg4xi3+Mw+KZ8CfTZRKdhv49l9Ama6pxobrTbNvVxV0qc8n2IkVYGPTcUFWmAPzvkBne6Fw74Vea+132BHn8Sl3c3kG4u8zyNWZrxg4UdmKenH6rq+SMdKsN2TKjLBE1x30D2pSvVpNNWXzesHh3CbeoAxPnmFXad74HefDoQ= Subject: Re: HR timers soft lockup on resume from suspend to ram From: =?ISO-8859-1?Q?Fr=E9d=E9ric?= RISS To: Thomas Gleixner Cc: Linux Kernel list In-Reply-To: <1173025704.11244.22.camel@funkylaptop> References: <1173025704.11244.22.camel@funkylaptop> Content-Type: text/plain; charset=utf-8 Date: Sun, 04 Mar 2007 17:51:07 +0100 Message-Id: <1173027067.11244.31.camel@funkylaptop> Mime-Version: 1.0 X-Mailer: Evolution 2.9.92 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On dim, 2007-03-04 at 17:28 +0100, Frédéric RISS wrote: > When the system is hung, and I press on the power button, I get this > backtrace (copied from the screen, netconsole won't allow to capture > it): > > BUG: soft lockup detected on CPU#0! > [] softlockup_tick+0xa8/0x110 > [] update_process_times+0x33/0x80 > [] tick_sched_timer+0x5b/0xc0 > [] hrtimer_interrupt+0x143/0x1d0 > [] smp_apic_timer_interrupt+0x50/0x80 > [] apic_timer_interrupt+0x28/0x30 > [] _spin_unlock_irq+0x6/0x30 > [] __sched_text_start+0x308/0x880 > [] _spin_unlock_irqrestore+0x19/0x30 > [] worker_thread+0x12e/0x170 > [] default_wake_function+0x0/0x10 > [] worker_thread+0x0/0x170 > [] kthread+0xba/0xf0 > [] kthread+0x0/0xf0 > [] kernel_thread_helper+0x7/0x14 > ====================== > > I get it every time I press on the power button. Turns, out this wasn't true. In fact multiple power button presses will bring the system back to life. I hadn't the right console loglevel setting when I first tested that. With a higher loglevel I get this by pressing the power button at least 4 times: Mar 4 17:43:58 minifunky kernel: [ 580.222727] Enabling non-boot CPUs ... Mar 4 17:43:58 minifunky kernel: [ 597.696477] BUG: soft lockup detected on CPU#0! Mar 4 17:43:58 minifunky kernel: [ 597.698186] [softlockup_tick+168/272] softlockup_tick+0xa8/0x110 Mar 4 17:43:58 minifunky kernel: [ 597.699924] [update_process_times+51/128] update_process_times+0x33/0x80 Mar 4 17:43:58 minifunky kernel: [ 597.701676] [tick_sched_timer+91/192] tick_sched_timer+0x5b/0xc0 Mar 4 17:43:58 minifunky kernel: [ 597.703453] [hrtimer_interrupt+323/464] hrtimer_interrupt+0x143/0x1d0 Mar 4 17:43:58 minifunky kernel: [ 597.705255] [smp_apic_timer_interrupt+80/128] smp_apic_timer_interrupt+0x50/0x80 Mar 4 17:43:58 minifunky kernel: [ 597.707066] [apic_timer_interrupt+40/48] apic_timer_interrupt+0x28/0x30 Mar 4 17:43:58 minifunky kernel: [ 597.708885] [scrdown+27/208] scrdown+0x1b/0xd0 Mar 4 17:43:58 minifunky kernel: [ 597.710684] [worker_thread+248/368] worker_thread+0xf8/0x170 Mar 4 17:43:58 minifunky kernel: [ 597.712505] [default_wake_function+0/16] default_wake_function+0x0/0x10 Mar 4 17:43:58 minifunky kernel: [ 597.714317] [worker_thread+0/368] worker_thread+0x0/0x170 Mar 4 17:43:58 minifunky kernel: [ 597.716137] [kthread+186/240] kthread+0xba/0xf0 Mar 4 17:43:58 minifunky kernel: [ 597.717949] [kthread+0/240] kthread+0x0/0xf0 Mar 4 17:43:58 minifunky kernel: [ 597.719737] [kernel_thread_helper+7/20] kernel_thread_helper+0x7/0x14 Mar 4 17:43:58 minifunky kernel: [ 597.721562] ======================= Mar 4 17:43:58 minifunky kernel: [ 606.119695] SMP alternatives: switching to SMP code Mar 4 17:43:58 minifunky kernel: [ 606.121668] Booting processor 1/1 eip 3000 Mar 4 17:43:58 minifunky kernel: [ 606.123518] CPU 1 irqstacks, hard=c04cf000 soft=c04cd000 Mar 4 17:43:58 minifunky kernel: [ 606.135911] Initializing CPU#1 Mar 4 17:43:58 minifunky kernel: [ 606.196496] Calibrating delay using timer specific routine.. 3333.89 BogoMIPS (lpj=1666945) Mar 4 17:43:58 minifunky kernel: [ 606.196503] CPU: After generic identify, caps: bfe9fbff 00100000 00000000 00000000 0000c1a9 00000000 00000000 Mar 4 17:43:58 minifunky kernel: [ 606.196508] monitor/mwait feature present. Mar 4 17:43:58 minifunky kernel: [ 606.196512] CPU: L1 I cache: 32K, L1 D cache: 32K Mar 4 17:43:58 minifunky kernel: [ 606.196514] CPU: L2 cache: 2048K Mar 4 17:43:58 minifunky kernel: [ 606.196517] CPU: Physical Processor ID: 0 Mar 4 17:43:58 minifunky kernel: [ 606.196518] CPU: Processor Core ID: 1 Mar 4 17:43:58 minifunky kernel: [ 606.196520] CPU: After all inits, caps: bfe9fbff 00100000 00000000 00002940 0000c1a9 00000000 00000000 Mar 4 17:43:58 minifunky kernel: [ 606.196526] Intel machine check architecture supported. Mar 4 17:43:58 minifunky kernel: [ 606.196532] Intel machine check reporting enabled on CPU#1. Mar 4 17:43:58 minifunky kernel: [ 606.197027] CPU1: Intel Genuine Intel(R) CPU T2300 @ 1.66GHz stepping 08 Mar 4 17:43:58 minifunky kernel: [ 606.223215] BUG: soft lockup detected on CPU#1! Mar 4 17:43:58 minifunky kernel: [ 606.225588] [softlockup_tick+168/272] softlockup_tick+0xa8/0x110 Mar 4 17:43:58 minifunky kernel: [ 606.228020] [update_process_times+51/128] update_process_times+0x33/0x80 Mar 4 17:43:58 minifunky kernel: [ 606.230450] [tick_periodic+34/128] tick_periodic+0x22/0x80 Mar 4 17:43:58 minifunky kernel: [ 606.232846] [tick_handle_periodic+21/112] tick_handle_periodic+0x15/0x70 Mar 4 17:43:58 minifunky kernel: [ 606.235299] [smp_apic_timer_interrupt+80/128] smp_apic_timer_interrupt+0x50/0x80 Mar 4 17:43:58 minifunky kernel: [ 606.237742] [apic_timer_interrupt+40/48] apic_timer_interrupt+0x28/0x30 Mar 4 17:43:58 minifunky kernel: [ 606.240237] [_spin_unlock_irq+6/48] _spin_unlock_irq+0x6/0x30 Mar 4 17:43:58 minifunky kernel: [ 606.242760] [schedule+776/2176] __sched_text_start+0x308/0x880 Mar 4 17:43:58 minifunky kernel: [ 606.245334] [migration_thread+0/528] migration_thread+0x0/0x210 Mar 4 17:43:58 minifunky kernel: [ 606.247907] [kthread+173/240] kthread+0xad/0xf0 Mar 4 17:43:58 minifunky kernel: [ 606.250478] [kthread+0/240] kthread+0x0/0xf0 Mar 4 17:43:58 minifunky kernel: [ 606.253069] [kernel_thread_helper+7/20] kernel_thread_helper+0x7/0x14 Mar 4 17:43:58 minifunky kernel: [ 606.255677] ======================= Mar 4 17:43:58 minifunky kernel: [ 606.258301] Switched to high resolution mode on CPU 1 Mar 4 17:43:58 minifunky kernel: [ 606.263491] CPU1 is up