From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754702AbYEXIH7 (ORCPT ); Sat, 24 May 2008 04:07:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751382AbYEXIHs (ORCPT ); Sat, 24 May 2008 04:07:48 -0400 Received: from mx1.ukfsn.org ([77.75.108.10]:45172 "EHLO mail.ukfsn.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751348AbYEXIHo (ORCPT ); Sat, 24 May 2008 04:07:44 -0400 Message-ID: <4837CCC6.3040904@dgreaves.com> Date: Sat, 24 May 2008 09:07:34 +0100 From: David Greaves User-Agent: Mozilla-Thunderbird 2.0.0.12 (X11/20080406) MIME-Version: 1.0 To: mingo@elte.hu, "'linux-kernel@vger.kernel.org'" Subject: [REPORT] anticipatory: forced dispatching is broken X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am guessing these things are linked.. [24243.778594] anticipatory: forced dispatching is broken (nr_sorted=1), please report this [24243.831710] ------------[ cut here ]------------ [24243.831808] WARNING: at block/blk-barrier.c:252 blk_do_ordered+0x1f0/0x228() [24243.831901] Modules linked in: lirc_serial lirc_dev dm_mod stv0299 msp3400 saa7127 saa7115 tuner tea5767 tda8290 tda18271 tda827x tuner_xc2028 tda9887 tuner_simple mt20xx tea5761 psmouse budget_ci budget_core ivtv dvb_core saa7146 ttpci_eeprom firmware_class cx2341x tveeprom iTCO_wdt ir_common dcdbas evdev [24243.832117] Pid: 8774, comm: rsync Not tainted 2.6.25.4-xfspatch-dirty #8 [24243.832117] [] warn_on_slowpath+0x3e/0x51 [24243.832117] [] tcp_recvmsg+0x674/0x6ab [24243.832117] [] tcp_v4_send_check+0x7c/0xae [24243.832117] [] sil24_qc_prep+0x148/0x19b [24243.832117] [] scsi_get_cmd_from_req+0x1a/0x36 [24243.832117] [] elv_dispatch_sort+0x25/0xcc [24243.832117] [] as_move_to_dispatch+0xc5/0xe8 [24243.832117] [] blk_do_ordered+0x1f0/0x228 [24243.832117] [] elv_next_request+0x18/0x12f [24243.832117] [] scsi_request_fn+0x64/0x2e2 [24243.832117] [] blk_run_queue+0x36/0x6e [24243.832117] [] scsi_next_command+0x25/0x2f [24243.832117] [] scsi_end_request+0x5f/0x66 [24243.832117] [] scsi_io_completion+0x12a/0x2e1 [24243.832117] [] scsi_softirq_done+0xb6/0xbb [24243.832117] [] blk_done_softirq+0x51/0x5d [24243.832117] [] __do_softirq+0x35/0x73 [24243.832117] [] do_softirq+0x22/0x26 [24243.832117] [] irq_exit+0x29/0x34 [24243.832117] [] do_IRQ+0x4e/0x5d [24243.832117] [] common_interrupt+0x23/0x28 [24243.832117] ======================= [24243.832117] ---[ end trace 869513b72e05b190 ]--- [24243.836211] ------------[ cut here ]------------ [24243.836301] WARNING: at block/blk-barrier.c:252 blk_do_ordered+0x1f0/0x228() [24243.836389] Modules linked in: lirc_serial lirc_dev dm_mod stv0299 msp3400 saa7127 saa7115 tuner tea5767 tda8290 tda18271 tda827x tuner_xc2028 tda9887 tuner_simple mt20xx tea5761 psmouse budget_ci budget_core ivtv dvb_core saa7146 ttpci_eeprom firmware_class cx2341x tveeprom iTCO_wdt ir_common dcdbas evdev [24243.837508] Pid: 52, comm: kblockd/0 Not tainted 2.6.25.4-xfspatch-dirty #8 [24243.837600] [] warn_on_slowpath+0x3e/0x51 [24243.837717] [] tg3_rx+0x32b/0x356 [24243.837833] [] tg3_poll_work+0x79/0x82 [24243.837944] [] tg3_restart_ints+0x11/0x63 [24243.838055] [] tg3_poll+0xc9/0x10a [24243.838165] [] net_rx_action+0x9e/0x1b9 [24243.838278] [] __do_softirq+0x35/0x73 [24243.838390] [] irq_exit+0x29/0x34 [24243.838499] [] do_IRQ+0x4e/0x5d [24243.838607] [] blk_do_ordered+0x1f0/0x228 [24243.838718] [] elv_next_request+0x18/0x12f [24243.838832] [] scsi_request_fn+0x64/0x2e2 [24243.838943] [] finish_task_switch+0x1a/0x69 [24243.839057] [] blk_unplug_work+0x0/0xc [24243.839168] [] __generic_unplug_device+0x1a/0x1c [24243.839283] [] generic_unplug_device+0x11/0x28 [24243.839395] [] blk_unplug_work+0xb/0xc [24243.839504] [] run_workqueue+0x83/0x10f [24243.839616] [] worker_thread+0xbf/0xcb [24243.839726] [] autoremove_wake_function+0x0/0x2d [24243.839840] [] finish_task_switch+0x37/0x69 [24243.839951] [] autoremove_wake_function+0x0/0x2d [24243.840065] [] worker_thread+0x0/0xcb [24243.840117] [] kthread+0x33/0x54 [24243.840117] [] kthread+0x0/0x54 [24243.840117] [] kernel_thread_helper+0x7/0x10 [24243.840117] ======================= [24243.840117] ---[ end trace 869513b72e05b190 ]--- No further errors in dmesg. This is 2.6.25.4-xfspatch-dirty - it has the patch for xfs on partitioned raid arrays. It also has the external lirc module loaded. The system was in the process of rsync-restoring 1Tb of data to a new 5x1Tb raid5 that was running degraded. The filesystem is xfs. The rsync ended like this: rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(541) [generator=3.0.2] rsync error: received SIGUSR1 (code 19) at main.c(1295) [receiver=3.0.2] which may be linked but I don't have timestamps for that. David