4.13: blk-mq fails to recover from suspend

From	Boyan Penkov <boyan.penkov@gmail.com>
Newsgroups	linux.debian.kernel
Subject	4.13: blk-mq fails to recover from suspend
Date	2017-09-01 23:50 +0200
Message-ID	<ul1Z7-2jb-15@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hello,

I just pulled in 4.13, with the intention of trying bfq.

To enable bfq as a scheduler, I passed "scsi_mod.use_blk_mq=1" to
grub, and added bfq via modprobe.  So far, so good: the scheduler does
turn up (vis-a-vis cat /sys/block/sda/queue/scheduler).

If I leave the machine and it sleeps, however, it does not wake up.
This is documented: https://lkml.org/lkml/2017/7/30/3

It seems, based on the discussion in the thread above, that the issue
has been resolved in 4.13-rc4 and 4.13-rc7, as the two patches
mentioned there are in mainline.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc4&id=765e40b675a9566459ddcb8358ad16f3b8344bbe

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc7&id=5f042e7cbd9eb

Am I missing something here?  Does 4.13 from experimental really have
these in?  Should I be looking elsewhere to help resolve this?

Cheers!

-- 
Boyan Penkov

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4.13: blk-mq fails to recover from suspend Boyan Penkov <boyan.penkov@gmail.com> - 2017-09-01 23:50 +0200
  Re: 4.13: blk-mq fails to recover from suspend Martin Steigerwald <martin@lichtvoll.de> - 2017-09-02 01:30 +0200

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