From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bart Van Assche <bart.vanassche@sandisk.com>
Subject: Re: [PATCH] scsi: avoid a permanent stop of the scsi device's request
 queue
Date: Wed, 7 Dec 2016 08:55:24 -0800
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On 12/07/2016 08:48 AM, Bart Van Assche wrote:
> It's a known bug. Some time ago I posted a patch that serializes all
> scsi_device_set_state() calls but I have not yet found it in the list
> archives. However, that patch has not yet been merged.

See also https://www.spinics.net/lists/linux-scsi/msg66966.html.

Bart.