From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bart Van Assche <bvanassche@acm.org>
Subject: Re: [dm-devel] dm-mq and end_clone_request()
Date: Sun, 7 Aug 2016 15:31:11 -0700
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To: Laurence Oberman <loberman@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>, "dm-devel@redhat.com" <dm-devel@redhat.com>, "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
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On 08/06/16 07:47, Laurence Oberman wrote:
> [66813.933246] Workqueue: srp_remove srp_remove_work [ib_srp]
> [ ... ]
> [66815.152051]  [<ffffffff814ac790>] scsi_forget_host+0x60/0x70
> [66815.183939]  [<ffffffff814a0137>] scsi_remove_host+0x77/0x110
> [66815.216152]  [<ffffffffa0677be0>] srp_remove_work+0x90/0x200 [ib_srp]
> [66815.253221]  [<ffffffff810a2e72>] process_one_work+0x152/0x400
> [66815.286221]  [<ffffffff810a3765>] worker_thread+0x125/0x4b0
> [66815.317313]  [<ffffffff810a3640>] ? rescuer_thread+0x380/0x380
> [66815.349770]  [<ffffffff810a9298>] kthread+0xd8/0xf0
> [66815.376082]  [<ffffffff816c6b3f>] ret_from_fork+0x1f/0x40
> [66815.404767]  [<ffffffff810a91c0>] ? kthread_park+0x60/0x60

Hello Laurence,

This is a callstack I have not yet encountered myself during any test. 
Please provide the output of the following commands:
$ gdb /lib/modules/$(uname -r)/build/vmlinux
(gdb) list *(scsi_forget_host+0x60)

Thanks,

Bart.