From: Bart Van Assche <bart.vanassche@sandisk.com>
To: Mike Snitzer <snitzer@redhat.com>
Cc: Keith Busch <keith.busch@intel.com>, Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@infradead.org>,
device-mapper development <dm-devel@redhat.com>,
Jun'ichi Nomura <j-nomura@ce.jp.nec.com>,
linux-scsi@vger.kernel.org
Subject: Re: dm + blk-mq soft lockup complaint
Date: Thu, 15 Jan 2015 16:55:11 +0100 [thread overview]
Message-ID: <54B7E2DF.5060409@sandisk.com> (raw)
In-Reply-To: <20150115154343.GA11859@redhat.com>
On 01/15/15 16:44, Mike Snitzer wrote:
> How easily could you reproduce your SRP hang? Did it happen every run
> or did it take multiple runs to see it?
Hello Mike,
This complaint was easy to trigger. It took less than one minute before
the soft lockup complaint appeared. The system did not hang after that
complaint appeared. Maybe this complaint means that a cond_resched()
call was missing from a loop ?
Bart.
next prev parent reply other threads:[~2015-01-15 15:55 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-17 3:59 [PATCH v3 0/8] dm: add request-based blk-mq support Mike Snitzer
2014-12-17 3:59 ` [PATCH v3 1/8] block: require blk_rq_prep_clone() be given an initialized clone request Mike Snitzer
2014-12-17 3:59 ` [PATCH v3 2/8] block: initialize bio member of blk-mq request to NULL Mike Snitzer
2014-12-17 3:59 ` [PATCH v3 3/8] block: add blk-mq support to blk_insert_cloned_request() Mike Snitzer
2014-12-17 4:00 ` [PATCH v3 4/8] block: mark blk-mq devices as stackable Mike Snitzer
2014-12-17 4:00 ` [PATCH v3 5/8] dm: remove exports for request-based interfaces without external callers Mike Snitzer
2014-12-17 4:00 ` [PATCH v3 6/8] dm: split request structure out from dm_rq_target_io structure Mike Snitzer
2014-12-17 4:00 ` [PATCH v3 7/8] dm: submit stacked requests in irq enabled context Mike Snitzer
2014-12-17 4:00 ` [PATCH v3 8/8] dm: allocate requests from target when stacking on blk-mq devices Mike Snitzer
2014-12-17 22:35 ` Mike Snitzer
2014-12-17 21:42 ` [PATCH v3 0/8] dm: add request-based blk-mq support Keith Busch
2014-12-17 21:43 ` Jens Axboe
2014-12-17 23:06 ` Mike Snitzer
2014-12-18 1:41 ` Keith Busch
2014-12-18 4:58 ` Mike Snitzer
2014-12-19 14:32 ` Bart Van Assche
2014-12-19 15:38 ` Mike Snitzer
2014-12-19 17:14 ` Mike Snitzer
2014-12-22 15:28 ` Bart Van Assche
2014-12-22 18:49 ` Mike Snitzer
2014-12-23 16:24 ` Bart Van Assche
2014-12-23 17:13 ` Mike Snitzer
2014-12-23 21:42 ` Mike Snitzer
2014-12-24 13:02 ` Bart Van Assche
2014-12-24 18:21 ` Mike Snitzer
2014-12-24 18:55 ` Mike Snitzer
2014-12-24 19:26 ` Mike Snitzer
2015-01-02 17:53 ` Bart Van Assche
2015-01-05 21:35 ` Mike Snitzer
2015-01-06 8:59 ` Christoph Hellwig
2015-01-06 9:31 ` Bart Van Assche
2015-01-06 16:05 ` blk-mq request allocation stalls [was: Re: [PATCH v3 0/8] dm: add request-based blk-mq support] Mike Snitzer
2015-01-06 16:15 ` Jens Axboe
2015-01-07 10:33 ` Bart Van Assche
2015-01-07 15:32 ` Jens Axboe
2015-01-07 16:15 ` Mike Snitzer
2015-01-07 16:18 ` Jens Axboe
2015-01-07 16:22 ` Mike Snitzer
2015-01-07 16:24 ` Jens Axboe
2015-01-07 17:18 ` Mike Snitzer
2015-01-07 17:35 ` Jens Axboe
2015-01-07 20:09 ` Mike Snitzer
2015-01-07 20:40 ` Keith Busch
2015-01-09 19:49 ` Mike Snitzer
2015-01-09 21:07 ` Jens Axboe
2015-01-09 21:11 ` Jens Axboe
2015-01-09 21:40 ` Mike Snitzer
2015-01-09 21:56 ` Jens Axboe
2015-01-09 22:25 ` Mike Snitzer
2015-01-10 0:27 ` Jens Axboe
2015-01-10 1:48 ` Mike Snitzer
2015-01-10 1:59 ` Jens Axboe
2015-01-10 3:10 ` Mike Snitzer
2015-01-12 14:46 ` blk-mq request allocation stalls Bart Van Assche
2015-01-12 15:42 ` Jens Axboe
2015-01-12 16:12 ` Bart Van Assche
2015-01-12 16:34 ` Jens Axboe
2015-01-12 16:58 ` Mike Snitzer
2015-01-12 16:59 ` Jens Axboe
2015-01-12 17:04 ` Bart Van Assche
2015-01-12 17:09 ` Jens Axboe
2015-01-12 17:53 ` Keith Busch
2015-01-12 18:12 ` Jens Axboe
2015-01-12 18:22 ` Keith Busch
2015-01-12 18:35 ` Keith Busch
2015-01-12 19:11 ` Mike Snitzer
2015-01-12 20:21 ` Mike Snitzer
2015-01-13 12:29 ` Bart Van Assche
2015-01-13 14:17 ` Mike Snitzer
2015-01-13 14:28 ` dm + blk-mq soft lockup complaint Bart Van Assche
2015-01-13 16:20 ` Mike Snitzer
2015-01-14 9:16 ` Bart Van Assche
2015-01-14 9:16 ` Bart Van Assche
2015-01-14 18:59 ` Mike Snitzer
2015-01-15 8:11 ` Bart Van Assche
2015-01-15 15:43 ` Mike Snitzer
2015-01-15 15:55 ` Bart Van Assche [this message]
2015-01-13 14:59 ` blk-mq request allocation stalls Jens Axboe
2015-01-13 15:11 ` Keith Busch
2015-01-13 15:27 ` Keith Busch
2015-01-13 15:41 ` Mike Snitzer
2015-01-13 15:14 ` Mike Snitzer
2015-01-27 18:42 ` blk-mq DM changes for 3.20 [was: Re: blk-mq request allocation stalls] Mike Snitzer
2015-01-28 16:42 ` Jens Axboe
2015-01-28 17:44 ` Mike Snitzer
2015-01-28 17:49 ` Jens Axboe
2015-01-28 18:10 ` Mike Snitzer
2015-01-29 22:43 ` blk-mq DM changes for 3.20 [was: Re: blk-mq request allocation stalls]X Keith Busch
2015-01-29 23:09 ` Mike Snitzer
2015-01-29 23:44 ` Keith Busch
2015-01-30 0:32 ` Mike Snitzer
2015-01-12 19:05 ` blk-mq request allocation stalls Jens Axboe
2015-01-12 19:07 ` Mike Snitzer
2015-01-12 18:19 ` Mike Snitzer
2014-12-17 22:51 ` [PATCH v3 0/8] dm: add request-based blk-mq support Mike Snitzer
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