From mboxrd@z Thu Jan 1 00:00:00 1970 From: loody Subject: Fwd: Kernel coredump about kblockd deadlock Date: Sun, 15 Jan 2012 14:59:26 +0800 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:41112 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750780Ab2AOG73 convert rfc822-to-8bit (ORCPT ); Sun, 15 Jan 2012 01:59:29 -0500 Received: by iagf6 with SMTP id f6so748115iag.19 for ; Sat, 14 Jan 2012 22:59:29 -0800 (PST) In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Dear all: I use kernel 2.6.35.13 and cpu for mips When I plug in/out usb stick for several times I got following warning messages as I append at the end of mail. is it possible correlate to below issue http://thread.gmane.org/gmane.linux.kernel/1177383/focus=3D69879 Thanks for your help, INFO: task kblockd/0:10 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this messag= e. kblockd/0 =A0 =A0 =A0 =A0D [87016a78] 802d1e48 =A0 =A0 0 =A0 =A010 0x00= 100000 =A0 =A0 =A02 =A0 =A0 =A0 =A0 =A011 =A0 =A0 =A0 9 =A0 =A0 =A0(kernel thread) Stack : 00000001 80107148 8562ed80 800e9098 00000001 00000001 7fffffff = 00000000 =A0 =A0 =A0 =A000000000 7fffffff 87053d38 ffffffff 87053d38 87053d28 87= 2ff00c 802d1e48 =A0 =A0 =A0 =A000000001 00000009 00000102 80071c80 00005965 0056addf 00= 005965 00000001 =A0 =A0 =A0 =A000000000 00000000 7fffffff 80020c64 00000000 00000002 00= 000000 00000000 =A0 =A0 =A0 =A07fffffff 802d1ca8 00000000 80024538 00000004 0000000a 00= 000001 87016a78 =A0 =A0 =A0 =A0... Call Trace: [<802d1764>] schedule+0x648/0x70c from[<802d1e48>] schedule_timeout+0x3= 0/0x324 [<802d1e48>] schedule_timeout+0x30/0x324 from[<802d1ca8>] wait_for_common+0xf8/0x1c0 [<802d1ca8>] wait_for_common+0xf8/0x1c0 from[<80044400>] __cancel_work_timer+0x188/0x210 [<80044400>] __cancel_work_timer+0x188/0x210 from[<801a48c4>] blk_cleanup_queue+0x18/0x6c [<801a48c4>] blk_cleanup_queue+0x18/0x6c from[<802098f4>] scsi_device_dev_release_usercontext+0x174/0x1e4 [<802098f4>] scsi_device_dev_release_usercontext+0x174/0x1e4 from[<80043aa8>] execute_in_process_context+0x30/0x5c [<80043aa8>] execute_in_process_context+0x30/0x5c from[<801eeda8>] device_release+0x54/0x90 [<801eeda8>] device_release+0x54/0x90 from[<801b0180>] kobject_release+= 0x70/0xa8 [<801b0180>] kobject_release+0x70/0xa8 from[<801b17bc>] kref_put+0x80/0= x98 [<801b17bc>] kref_put+0x80/0x98 from[<80203c04>] scsi_request_fn+0x51c/= 0x61c [<80203c04>] scsi_request_fn+0x51c/0x61c from[<801a482c>] generic_unplug_device+0x38/0x7c [<801a482c>] generic_unplug_device+0x38/0x7c from[<80043e90>] worker_thread+0x1ec/0x2d4 [<80043e90>] worker_thread+0x1ec/0x2d4 from[<800482c4>] kthread+0x7c/0x= 84 [<800482c4>] kthread+0x7c/0x84 from[<80007818>] kernel_thread_helper+0x= 10/0x18 -----------------------------------------------------------------------= -------------- hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002 hub 1-0:1.0: port 1, status 0000, change 0001, 12 Mb/s usb 1-1: USB disconnect, address 35 usb 1-1: unregistering device usb 1-1: unregistering interface 1-1:1.0 usb 1-1: usb_disable_device nuking all URBs hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x0 hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002 ehci-ehci ehci-ehci.0: GetStatus port 1 status 000803 sig=3Dj CSC CONNE= CT hub 1-0:1.0: port 1, status 0401, change 0001, 480 Mb/s hub 1-0:1.0: debounce: port 1: total 100ms stable 100ms status 0x401 ehci-ehci ehci-ehci.0: port 1 high speed ehci-ehci ehci-ehci.0: GetStatus port 1 status 00000d sig=3Dse0 PEC PE = CONNECT usb 1-1: new high speed USB device using ehci-ehci and address 36 ehci-ehci ehci-ehci.0: port 1 high speed ehci-ehci ehci-ehci.0: GetStatus port 1 status 00000d sig=3Dse0 PEC PE = CONNECT usb 1-1: default language 0x0409 usb 1-1: udev 36, busnum 1, minor =3D 35 =2E... =2E.... --=20 Regards, -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html