Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753631AbZK1TB2 (ORCPT ); Sat, 28 Nov 2009 14:01:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753500AbZK1TB1 (ORCPT ); Sat, 28 Nov 2009 14:01:27 -0500 Received: from tac.ki.iif.hu ([193.6.222.43]:50948 "EHLO tac.ki.iif.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753351AbZK1TB0 (ORCPT ); Sat, 28 Nov 2009 14:01:26 -0500 From: Ferenc Wagner To: "Rafael J. Wysocki" Cc: linux-pm@lists.linux-foundation.org, Jesse Barnes , Andrew Morton , yakui.zhao@intel.com, LKML , ACPI Devel Maling List , Len Brown Subject: Re: [linux-pm] intermittent suspend problem again References: <87fx93pwv2.fsf@tac.ki.iif.hu> <200911141952.50030.rjw@sisk.pl> <87r5rwrkqs.fsf@tac.ki.iif.hu> <200911182313.14092.rjw@sisk.pl> Date: Sat, 28 Nov 2009 20:01:08 +0100 In-Reply-To: <200911182313.14092.rjw@sisk.pl> (Rafael J. Wysocki's message of "Wed, 18 Nov 2009 23:13:14 +0100") Message-ID: <87d4324gp7.fsf@tac.ki.iif.hu> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1342 Lines: 36 "Rafael J. Wysocki" writes: > On Wednesday 18 November 2009, Ferenc Wagner wrote: > >> Ferenc Wagner writes: >> >>> Since I've instrumented s2disk and the hibernation path, no freeze >>> happened during hibernating the machine. >> >> Not until I removed the delays from hibernation_platform_enter(), which >> were put there previously to get step-by-step feedback. Removing them >> again resulted in a freeze in short course, maybe just two hibernations >> later. The instrumentation shows it stuck in dpm_suspend_start(PMSG_HIBERNATE). >> Does it mean that some device driver is at fault? > > A driver or one of the platform hooks. > >> I'll check if it always fails at the same point (although tracing into >> dpm_suspend_start isn't pure fun because of the multitude of devices it >> loops over). Is there any way to get printk output from that phase? > > Compile with CONFIG_PM_VERBOSE (it does mean exactly that). The last message now was: e100: 0000:02:08.0: hibernate, may wakeup Looks like hibernating the e100 driver is unstable. -- Regards, Feri. -- 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/