Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754821AbYBVP6Y (ORCPT ); Fri, 22 Feb 2008 10:58:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754280AbYBVP6L (ORCPT ); Fri, 22 Feb 2008 10:58:11 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:42934 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756843AbYBVP6J (ORCPT ); Fri, 22 Feb 2008 10:58:09 -0500 From: "Rafael J. Wysocki" To: Soeren Sonnenburg Subject: Re: 2.6.25-rc2 regression - hang on suspend Date: Fri, 22 Feb 2008 16:56:28 +0100 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: Linux Kernel , pm list References: <1203422386.10992.2.camel@localhost> <200802220006.39130.rjw@sisk.pl> <1203663628.8422.2.camel@localhost> In-Reply-To: <1203663628.8422.2.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200802221656.28546.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2016 Lines: 46 On Friday, 22 of February 2008, Soeren Sonnenburg wrote: > On Fri, 2008-02-22 at 00:06 +0100, Rafael J. Wysocki wrote: > > On Thursday, 21 of February 2008, Soeren Sonnenburg wrote: > > > On Thu, 2008-02-21 at 01:31 +0100, Rafael J. Wysocki wrote: > > > > On Wednesday, 20 of February 2008, Soeren Sonnenburg wrote: > > > > > On Wed, 2008-02-20 at 00:50 +0100, Rafael J. Wysocki wrote: > [...] > > > Using echo none >/sys/power/pm_test and then > > > echo mem >/sys/power/state I see it hang on ata1 errors again. Waiting > > > about 10-30 seconds it progresses further and finally arrives at > > > > > > CPU0 attaching NULL sched-domain > > > CPU1 attaching NULL sched-domain > > > > > > then hangs. > > > > Please see if compiling the kernel with CONFIG_SMP unset makes suspend > > work. > > *Argh*, this bug is not behaving nicely :( Whatever happened, > git-current now suspends correctly with and without CONFIG_SMP and all > may CONFIG_PREEMPT_RCU=y and CONFIG_CLASSIC_RCU=y attempts. Also no sata > errors anymore. > > However it is not reliably waking up (at least when all of the above > except CLASSIC_RCU is on). Sometimes the display remains black on the > console, but X still works and sometimes it hangs completely on resume. I have created the Bugzilla entry at http://bugzilla.kernel.org/show_bug.cgi?id=10065 for this issue. Please add yourself to the CC list in there and update it with any new findings. > Also when compiling these many kernels via make -j4 I noted that I could > hardly move the mouse / use the keyboard, but saw random jumps and > key-repetitions... This last bit is most likely a scheduler issue. Do you have CONFIG_GROUP_SCHED set by chance? If you do, please try to unset it and see if that helps. Thanks, Rafael -- 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/