From: Benjamin Block <bblock@linux.vnet.ibm.com>
To: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: [PATCH v4 0/6] Avoid that scsi-mq and dm-mq queue processing stalls sporadically
Date: Wed, 12 Apr 2017 12:55:38 +0200 [thread overview]
Message-ID: <20170412105538.GB22576@bblock-ThinkPad-W530> (raw)
In-Reply-To: <20170407181654.27836-1-bart.vanassche@sandisk.com>
On Fri, Apr 07, 2017 at 11:16:48AM -0700, Bart Van Assche wrote:
> Hello Jens,
>
> The six patches in this patch series fix the queue lockup I reported
> recently on the linux-block mailing list. Please consider these patches
> for inclusion in the upstream kernel.
>
Hey Bart,
just out of curiosity. Is this maybe related to similar stuff happening
when CPUs are hot plugged - at least in that the stack gets stuck? Like
in this thread here:
https://www.mail-archive.com/linux-block@vger.kernel.org/msg06057.html
Would be interesting, because we recently saw similar stuff happening.
Beste Grüße / Best regards,
- Benjamin Block
--
Linux on z Systems Development / IBM Systems & Technology Group
IBM Deutschland Research & Development GmbH
Vorsitz. AufsR.: Martina Koederitz / Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen / Registergericht: AmtsG Stuttgart, HRB 243294
next prev parent reply other threads:[~2017-04-12 10:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-07 18:16 [PATCH v4 0/6] Avoid that scsi-mq and dm-mq queue processing stalls sporadically Bart Van Assche
2017-04-07 18:16 ` [PATCH v4 1/6] blk-mq: Make it safe to use RCU to iterate over blk_mq_tag_set.tag_list Bart Van Assche
2017-04-10 7:10 ` Christoph Hellwig
2017-04-07 18:16 ` [PATCH v4 2/6] blk-mq: Restart a single queue if tag sets are shared Bart Van Assche
2017-04-10 7:11 ` Christoph Hellwig
2017-04-07 18:16 ` [PATCH v4 3/6] blk-mq: Clarify comments in blk_mq_dispatch_rq_list() Bart Van Assche
2017-04-10 7:11 ` Christoph Hellwig
2017-04-07 18:16 ` [PATCH v4 4/6] blk-mq: Introduce blk_mq_delay_run_hw_queue() Bart Van Assche
2017-04-10 7:12 ` Christoph Hellwig
2017-04-10 15:02 ` Jens Axboe
2017-04-07 18:16 ` [PATCH v4 5/6] scsi: Avoid that SCSI queues get stuck Bart Van Assche
2017-04-10 7:12 ` Christoph Hellwig
2017-04-07 18:16 ` [PATCH v4 6/6] dm rq: Avoid that request processing stalls sporadically Bart Van Assche
2017-04-11 16:09 ` Mike Snitzer
2017-04-11 16:26 ` Bart Van Assche
2017-04-11 17:47 ` Mike Snitzer
2017-04-11 17:51 ` Bart Van Assche
2017-04-11 18:03 ` Mike Snitzer
2017-04-11 18:18 ` Bart Van Assche
2017-04-12 3:42 ` Ming Lei
2017-04-12 18:38 ` Bart Van Assche
2017-04-13 2:20 ` Ming Lei
2017-04-13 16:59 ` Bart Van Assche
2017-04-14 1:13 ` Ming Lei
2017-04-14 17:12 ` Bart Van Assche
2017-04-16 10:21 ` Ming Lei
2017-04-07 18:23 ` [PATCH v4 0/6] Avoid that scsi-mq and dm-mq queue " Jens Axboe
2017-04-07 18:33 ` Bart Van Assche
2017-04-07 18:39 ` Bart Van Assche
2017-04-07 18:51 ` Jens Axboe
2017-04-12 10:55 ` Benjamin Block [this message]
2017-04-12 18:11 ` Bart Van Assche
2017-04-13 12:23 ` Benjamin Block
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