From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755983Ab0EaOWG (ORCPT ); Mon, 31 May 2010 10:22:06 -0400 Received: from fg-out-1718.google.com ([72.14.220.154]:12271 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754912Ab0EaOWE (ORCPT ); Mon, 31 May 2010 10:22:04 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :x-enigmail-version:content-type:content-transfer-encoding; b=e0X4IAepTFSk2e1fvpBs/ZhTGM2qhAFIK5NN3tm4fXrWgY90CrtRZZoVyMwTW8FVzd inYmRI2FCjleJJGDdew6Zmo1Fl5kzESU3765dKdK2mFOlQC0r4wvk9IgMiuqFMfsI1ZZ DjCu3D0+3NJMuxtXMUeSyz7eOuA8o4H04q5wQ= Message-ID: <4C03C608.1040600@gmail.com> Date: Mon, 31 May 2010 16:22:00 +0200 From: Jiri Slaby User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; cs-CZ; rv:1.9.2.4) Gecko/20100522 SUSE/3.1rc1-2.1 Thunderbird/3.1 MIME-Version: 1.0 To: dzickus@redhat.com CC: Frederic Weisbecker , LKML , Linux-pm mailing list , linux-ide@vger.kernel.org Subject: hibernation hangs with ATA errors (lockup_detector bug) X-Enigmail-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, with -next I get the following errors while trying to hibernate in qemu-kvm after the image is stored on disk: sd 0:0:0:0: [sda] Starting disk sd 0:0:1:0: [sdb] Starting disk e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX ata1.00: configured for MWDMA2 ata1.01: configured for MWDMA2 PM: thaw of devices complete after 168.017 msecs ata2.01: qc timeout (cmd 0xec) ata2.01: failed to IDENTIFY (I/O error, err_mask=0x4) sd 0:0:1:0: [sdb] Stopping disk sd 0:0:0:0: [sda] Stopping disk uhci_hcd 0000:00:01.2: PCI INT D disabled e1000 0000:00:03.0: PCI INT A disabled ata2.01: qc timeout (cmd 0xec) ata2.01: failed to IDENTIFY (I/O error, err_mask=0x4) ata2.01: qc timeout (cmd 0xec) ata2.01: failed to IDENTIFY (I/O error, err_mask=0x4) ... I bisected it down to: commit 58687acba59266735adb8ccd9b5b9aa2c7cd205b Author: Don Zickus Date: Fri May 7 17:11:44 2010 -0400 lockup_detector: Combine nmi_watchdog and softlockup detector The new nmi_watchdog (which uses the perf event subsystem) is very similar in structure to the softlockup detector. Using Ingo's suggestion, I combined the two functionalities into one file: kernel/watchdog.c. ... The config difference against 58687acb^: --- .config.old 2010-05-31 16:01:51.727312636 +0200 +++ .config 2010-05-31 16:11:08.682136175 +0200 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.34-rc7 -# Mon May 31 16:01:51 2010 +# Mon May 31 16:11:08 2010 # CONFIG_64BIT=y # CONFIG_X86_32 is not set @@ -2133,7 +2133,7 @@ CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_SHIRQ=y CONFIG_DETECT_SOFTLOCKUP=y -CONFIG_NMI_WATCHDOG=y +CONFIG_LOCKUP_DETECTOR=y # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 CONFIG_DETECT_HUNG_TASK=y 'nowatchdog' parameter helps. $ grep PERF .config CONFIG_HAVE_PERF_EVENTS=y CONFIG_PERF_EVENTS=y # CONFIG_PERF_COUNTERS is not set # CONFIG_DEBUG_PERF_USE_VMALLOC is not set CONFIG_HAVE_PERF_EVENTS_NMI=y -- js