On Wed, 2018-01-17 at 11:58 -0500, Mike Snitzer wrote: > On Wed, Jan 17 2018 at 11:50am -0500, > Jens Axboe <axboe@xxxxxxxxx> wrote: > > > On 1/17/18 9:25 AM, Mike Snitzer wrote: > > > Hi Jens, > > > > > > Think this finally takes care of it! ;) > > > > > > Thanks, > > > Mike > > > > > > Mike Snitzer (2): > > > blk-mq: factor out a few helpers from __blk_mq_try_issue_directly > > > blk-mq-sched: remove unused 'can_block' arg from blk_mq_sched_insert_request > > > > > > Ming Lei (1): > > > blk-mq: improve DM's blk-mq IO merging via blk_insert_cloned_request feedback > > > > Applied - added actual commit message to patch 3. > > Great, thanks. Hello Mike, Laurence hit the following while retesting the SRP initiator code: [ 2223.797129] list_add corruption. prev->next should be next (00000000e0ddd5dd), but was 000000003defe5cd. (prev=000000003defe5cd). [ 2223.862168] WARNING: CPU: 14 PID: 577 at lib/list_debug.c:28 __list_add_valid+0x6a/0x70 [ 2224.481151] CPU: 14 PID: 577 Comm: kworker/14:1H Tainted: G I 4.15.0-rc8.bart3+ #1 [ 2224.531193] Hardware name: HP ProLiant DL380 G7, BIOS P67 08/16/2015 [ 2224.567150] Workqueue: kblockd blk_mq_run_work_fn [ 2224.593182] RIP: 0010:__list_add_valid+0x6a/0x70 [ 2224.967002] Call Trace: [ 2224.980941] blk_mq_request_bypass_insert+0x57/0xa0 [ 2225.009044] __blk_mq_try_issue_directly+0x56/0x1e0 [ 2225.037007] blk_mq_request_direct_issue+0x5d/0xc0 [ 2225.090608] map_request+0x142/0x260 [dm_mod] [ 2225.114756] dm_mq_queue_rq+0xa4/0x120 [dm_mod] [ 2225.140812] blk_mq_dispatch_rq_list+0x90/0x5b0 [ 2225.211769] blk_mq_sched_dispatch_requests+0x107/0x1a0 [ 2225.240825] __blk_mq_run_hw_queue+0x5f/0xf0 [ 2225.264852] process_one_work+0x141/0x340 [ 2225.287872] worker_thread+0x47/0x3e0 [ 2225.308354] kthread+0xf5/0x130 [ 2225.396405] ret_from_fork+0x32/0x40 That call trace did not show up before this patch series was added to Jens' tree. This is a regression. Could this have been introduced by this patch series? Thanks, Bart. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
