Messages in this thread | | | From | Alexei Potashnik <> | Date | Tue, 18 Jul 2017 14:32:34 -0700 | Subject | RE: [PATCH] workqueue: doc change for ST behavior on NUMA systems |
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target has a bug in TMR handling.
dev->tmr_wq = alloc_workqueue("tmr-%s", WQ_MEM_RECLAIM | WQ_UNBOUND, 1, dev->transport->name);
LUN_RESET can race with TASK_ABORT in different sessions. Will send a patch to target list.
-----Original Message----- From: Christoph Hellwig [mailto:hch@infradead.org] Sent: Tuesday, July 18, 2017 12:18 PM To: Alexei Potashnik <alexei@purestorage.com> Cc: tj@kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH] workqueue: doc change for ST behavior on NUMA systems
On Tue, Jul 18, 2017 at 11:12:53AM -0700, Alexei Potashnik wrote: > NUMA rework of workqueue made the combination of max_active of 1 and > WQ_UNBOUND insufficient to guarantee ST behavior system wide. > > alloc_ordered_queue should now be used instead.
Eww. And how many existing users might be broken by that?
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