Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752638Ab0FUT0D (ORCPT ); Mon, 21 Jun 2010 15:26:03 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:34739 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753046Ab0FUTZ7 (ORCPT ); Mon, 21 Jun 2010 15:25:59 -0400 From: "Rafael J. Wysocki" To: Tino Keitel , Alan Stern Subject: Re: Suspend hangs since 2.6.34 Date: Mon, 21 Jun 2010 21:24:08 +0200 User-Agent: KMail/1.13.3 (Linux/2.6.35-rc3-rjw+; KDE/4.4.3; x86_64; ; ) Cc: linux-kernel@vger.kernel.org, "Linux-pm mailing list" References: <20100609175356.GA17332@x61.home> <201006100142.13131.rjw@sisk.pl> <20100620225601.GA15589@x61.home> In-Reply-To: <20100620225601.GA15589@x61.home> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Message-Id: <201006212124.09076.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1978 Lines: 38 On Monday, June 21, 2010, Tino Keitel wrote: > Hi, > > this nasty bug did not appear after I enabled suspend debugging first, > but now it did: > > 2010-06-20_22:40:31.22927 kern.info: usbcore: deregistering interface driver dvb_usb_vp7045 > 2010-06-20_22:40:31.24960 kern.debug: usb 1-6: __pm_runtime_resume()! > 2010-06-20_22:40:31.24968 kern.debug: usb 1-6: __pm_runtime_resume() returns 1! > 2010-06-20_22:40:31.24969 kern.debug: PM: Removing info for No Bus:dvb0.frontend0 > 2010-06-20_22:40:31.24971 kern.debug: PM: Removing info for No Bus:dvb0.net0 > 2010-06-20_22:40:31.24972 kern.debug: PM: Removing info for No Bus:dvb0.demux0 > 2010-06-20_22:40:31.24973 kern.debug: PM: Removing info for No Bus:dvb0.dvr0 > 2010-06-20_22:40:31.24974 kern.info: dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) successfully deinitialized and disconnected. > 2010-06-20_22:40:32.26675 kern.info: PM: Syncing filesystems ... done. > 2010-06-20_22:40:32.39011 kern.debug: PM: Preparing system for mem sleep > > When I killed the suspend script which hung at the echo mem > > /sys/power/state line, the computer suspended. After wakeup, the kernel > log lines after the line above look like this: > > 2010-06-20_22:49:10.28745 kern.warn: Freezing user space processes ... (elapsed 0.02 seconds) done. > 2010-06-20_22:49:10.28748 kern.warn: Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. > 2010-06-20_22:49:10.28748 kern.debug: PM: Entering mem sleep > 2010-06-20_22:49:10.28749 kern.warn: Suspending console(s) (use no_console_suspend to debug) > > I also attached the full kernel log since the boot. Hmm. It looks like a USB problem, then. Alan, can you have a look at this, please? 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/