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SubjectRe: [regression/bisected] 4.19 cycle boot time IO stalls
On Wed, 2018-09-05 at 07:39 -0600, Jens Axboe wrote:
> I bet it's the host busy change from Ming, which I already
> reported as being the culprit for another test failure I had. For
> some reason it's not merged yet, nudge nudge Martin. You can test
> by reverting:
> commit 328728630d9f2bf14b82ca30b5e47489beefe361
> Author: Ming Lei <>
> Date: Sun Jun 24 22:03:27 2018 +0800
> scsi: core: avoid host-wide host_busy counter for scsi_mq
> which was slightly modified by 265d59aacbce, so you'll want to
> yank that one first.

Bingo (woohoo, no dog slow take 2 required).

> BTW, that suse email for me hasn't worked in 12 years :-)

Yeah, I must have double tapped mouse, and picked up one of the many
ancient artifacts in Evolution's DB. Sorry about that.


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