From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab Subject: BUG: workqueue lockup Date: Sun, 20 Mar 2016 16:41:14 +0100 Message-ID: <87oaa9upgl.fsf@linux-m68k.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-out.m-online.net ([212.18.0.9]:52891 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755976AbcCTPlS (ORCPT ); Sun, 20 Mar 2016 11:41:18 -0400 Sender: linux-m68k-owner@vger.kernel.org List-Id: linux-m68k@vger.kernel.org To: linux-m68k@vger.kernel.org Cc: Finn Thain I'm getting this hangup with 4.5 in aranym: [ 2.060000] scsi host0: Atari native SCSI, io_port 0x0, n_io_port 0, base 0x0, irq 15, can_queue 8, cmd_per_lun 1, sg_tablesize 0, this_id 7, flags { }, options { REAL_DMA SUPPORT_TAGS } [ 2.110000] blk_queue_max_segments: set to minimum 1 [ 55.130000] random: nonblocking pool is initialized [ 60.240000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 58s! [ 60.270000] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 52s! [ 60.300000] Showing busy workqueues and worker pools: [ 60.310000] workqueue events: flags=0x0 [ 60.340000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 [ 60.340000] pending: cache_reap, do_cache_clean [ 60.380000] workqueue events_power_efficient: flags=0x80 [ 60.410000] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 [ 60.410000] pending: fb_flashcursor, neigh_periodic_work [ 60.450000] workqueue kblockd: flags=0x18 [ 60.470000] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 [ 60.470000] pending: blk_mq_timeout_work [ 60.500000] workqueue ncr5380_0: flags=0xa [ 60.530000] pwq 2: cpus=0 node=0 flags=0x4 nice=0 active=1/1 [ 60.530000] in-flight: 6:NCR5380_main [ 60.560000] pool 2: cpus=0 node=0 flags=0x4 nice=0 hung=58s workers=2 idle: 57 I assume that this has something to do with the ncr5380 updates. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."