Re: [REGRESSION] bfq probe failed on 4.19-rc3

From: Takashi Iwai
Date: Tue Sep 11 2018 - 12:11:47 EST


On Tue, 11 Sep 2018 18:09:44 +0200,
Jens Axboe wrote:
>
> On 9/11/18 10:03 AM, Takashi Iwai wrote:
> > Hi,
> >
> > I noticed that bfq doesn't appear in the I/O scheduler list on
> > 4.19-rc3. It seems that blkcg_policy_register() at the beginning of
> > bfq_init() returns -ENOSPC, hence the probe aborts silently.
> >
> > Is this already addressed?
>
> Haven't heard about this one before. What kernel did you last use that
> worked?

IIRC, 4.18 worked fine. Let me see whether I have a backup...


Takashi