linux-kernel - Re: [RT] i915 sleeping function from atomic in gen6_reset

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Message-ID: <ZKvx8hVLJ0OY3M5z@localhost.localdomain>
Date:   Mon, 10 Jul 2023 13:56:34 +0200
From:   Juri Lelli <juri.lelli@...hat.com>
To:     Mike Galbraith <efault@....de>
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RT] i915 sleeping function from atomic in gen6_reset_engines()

On 10/07/23 12:09, Mike Galbraith wrote:
> On Mon, 2023-07-10 at 09:21 +0200, Juri Lelli wrote:
> > Hi!
> >
> > On 23/01/23 17:04, Juri Lelli wrote:
> > > Hi,
> > >
> > > I've just noticed the following while testing v6.2-rc3-rt1.
> >
> > I'm still seeing the following on v6.4-rt6.
> >
> > I believe 20211006164628.s2mtsdd2jdbfyf7g@...utronix.de should cure it,
> > but I don't think it did go anywhere?
> 
> The raw lock cyclictest deltas don't look great.  I shut it up with the
> below.  For my i915 equipped lappy, a raw lock fix would be just fine,
> its cyclictest numbers already being well south of 'oh dear'.

Right, thanks for sharing!

Looks like Sebastian is on holiday, so I guess we'll need to wait till
he's back to see which solution he prefer.

Best,
Juri