linux-kernel - Re: PWM regression causing failures with the pwm-atmel driver

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Message-ID: <20230524060700.ryvnijygnitogesx@pengutronix.de>
Date:   Wed, 24 May 2023 08:07:00 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Peter Rosin <peda@...ntia.se>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-pwm@...r.kernel.org,
        Thorsten Leemhuis <regressions@...mhuis.info>,
        Thierry Reding <thierry.reding@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: Re: PWM regression causing failures with the pwm-atmel driver

On Tue, May 23, 2023 at 10:42:34PM +0200, Peter Rosin wrote:
> 2023-05-23 at 01:34, Peter Rosin wrote:
> > So, I took a step back and can only conclude that there must be some
> > another regression to find, and I was confused by that other regression.
> > In short, I was on 6.1.<foo> and everything was fine, and then I bumped
> > to 6.3 and a process crashed. I went to 6.2 and that same process also
> > crashed. I then totally focused on v6.1..v6.2 to figure out the problem.
> > I simply assumed v6.3 had the same problem because the symptom from
> > 30.000ft was the same (that process died). I failed to go back to v6.3
> > to confirm that it was indeed the same problem as I had found in the
> > v6.1..v6.2 range.
> > 
> > My bad, it seems I have another day of bisections lined up.
> 
> For closure, I ended up with this:
> https://lore.kernel.org/lkml/221d19e2-6b92-7f38-7d8a-a730f54c33ea@axentia.se/
> 
> I.e. another v6.1..v6.2 regression that caused sound failures.
> The two problems looked very similar to the suffering application.
> 
> Anyway, sorry again for the noise.

OK. After your first mail I had the impression there is another PWM
releated problem to be reported, but it seems this isn't the case.

Just to have that explicit: Did I understand you right?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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