From: Ming Lei <ming.lei@redhat.com>
To: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: linux-kernel@vger.kernel.org, Jens Axboe <axboe@fb.com>,
Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
linux-nvme@lists.infradead.org,
David Jeffery <djeffery@redhat.com>,
Laurence Oberman <loberman@redhat.com>,
Paolo Valente <paolo.valente@linaro.org>, Jan Kara <jack@suse.cz>,
Sasha Levin <sashal@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Keith Busch <kbusch@kernel.org>
Subject: Re: New warning in nvme_setup_discard
Date: Sat, 17 Jul 2021 17:35:32 +0800 [thread overview]
Message-ID: <YPKkZJWsD84mmKuk@T590> (raw)
In-Reply-To: <1687461.6WkTYu5mUM@natalenko.name>
On Fri, Jul 16, 2021 at 02:56:22PM +0200, Oleksandr Natalenko wrote:
> On pátek 16. července 2021 12:41:52 CEST Ming Lei wrote:
> > > Do I understand correctly that this will be something like:
> > >
> > > Fixes: 2705dfb209 ("block: fix discard request merge")
> > >
> > > ?
> > >
> > > Because as the bisection progresses, I've bumped into this commit only.
> > > Without it the issue is not reproducible, at least so far.
> >
> > It could be.
> >
> > So can you just test v5.14-rc1?
>
> Doing it right now, but I've got another issue. Why BFQ is not listed here:
>
> ```
> /sys/class/block/nvme0n1/queue/scheduler:[mq-deadline] kyber none
> /sys/class/block/nvme1n1/queue/scheduler:[mq-deadline] kyber none
> ```
Maybe you need to check if the build is OK, I can't reproduce it in my
VM, and BFQ is still builtin:
[root@ktest-01 ~]# uname -a
Linux ktest-01 5.14.0-rc1+ #52 SMP Fri Jul 16 18:56:36 CST 2021 x86_64 x86_64 x86_64 GNU/Linux
[root@ktest-01 ~]# cat /sys/block/nvme0n1/queue/scheduler
[none] mq-deadline kyber bfq
>
> ?
>
> It is a built-in, FWIW:
>
> ```
> $ modinfo bfq
> name: bfq
> filename: (builtin)
> description: MQ Budget Fair Queueing I/O Scheduler
> license: GPL
> file: block/bfq
> author: Paolo Valente
> alias: bfq-iosched
> ```
>
> So far the issue is not reproducible with your patch + 5.13.2 as well as 5.14-
> rc1 (but I don't have BFQ either with v5.14-rc1).
You have to verify it with BFQ applied, :-)
Thanks,
Ming
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next prev parent reply other threads:[~2021-07-17 9:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-15 13:56 New warning in nvme_setup_discard Oleksandr Natalenko
2021-07-15 14:19 ` Greg Kroah-Hartman
2021-07-15 14:21 ` Oleksandr Natalenko
2021-07-15 21:37 ` Laurence Oberman
2021-07-16 5:50 ` Oleksandr Natalenko
2021-07-16 2:16 ` Ming Lei
2021-07-16 5:53 ` Oleksandr Natalenko
2021-07-16 9:33 ` Ming Lei
2021-07-16 10:03 ` Oleksandr Natalenko
2021-07-16 10:41 ` Ming Lei
2021-07-16 12:56 ` Oleksandr Natalenko
2021-07-17 9:35 ` Ming Lei [this message]
2021-07-17 12:11 ` Oleksandr Natalenko
2021-07-17 12:19 ` Oleksandr Natalenko
2021-07-17 12:35 ` Oleksandr Natalenko
2021-07-19 1:40 ` Ming Lei
2021-07-19 6:27 ` Oleksandr Natalenko
2021-07-20 9:05 ` Oleksandr Natalenko
2021-07-21 8:00 ` Ming Lei
2021-07-27 15:12 ` Oleksandr Natalenko
2021-07-27 15:58 ` Ming Lei
2021-07-28 13:44 ` Oleksandr Natalenko
2021-07-28 15:53 ` Ming Lei
2021-07-28 16:38 ` Oleksandr Natalenko
2021-07-29 3:33 ` Ming Lei
2021-07-29 9:29 ` Ming Lei
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