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Message-ID: <a9da2b27-882f-bc8e-3400-cb53440e2159@acm.org>
Date:   Mon, 16 Jan 2023 09:48:33 -0800
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Subject: Re: kernel BUG scsi_dh_alua sleeping from invalid context && kernel
 WARNING do not call blocking ops when !TASK_RUNNING
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To:     Martin Wilck <mwilck@suse.com>,
        Steffen Maier <maier@linux.ibm.com>,
        linux-scsi <linux-scsi@vger.kernel.org>
Cc:     "Martin K. Petersen" <martin.petersen@oracle.com>,
        "James E . J . Bottomley" <jejb@linux.ibm.com>,
        Sachin Sant <sachinp@linux.ibm.com>,
        Hannes Reinecke <hare@suse.de>,
        Benjamin Block <bblock@linux.ibm.com>,
        linux-s390 <linux-s390@vger.kernel.org>
References: <b49e37d5-edfb-4c56-3eeb-62c7d5855c00@linux.ibm.com>
 <017b6c73f56505e63519e4b79fe69d66abddf810.camel@suse.com>
From:   Bart Van Assche <bvanassche@acm.org>
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On 1/16/23 08:57, Martin Wilck wrote:
> Can we simply defer the scsi_device_put() to a workqueue?

I'm concerned that would reintroduce a race condition when LLD kernel 
modules are removed.

Thanks,

Bart.