linux-kernel - Re: [PATCH] timekeeping: Prevent coarse clocks going backwards

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Message-ID: <874iynrml0.ffs@tglx>
Date: Thu, 17 Apr 2025 14:36:59 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: John Stultz <jstultz@...gle.com>
Cc: Miroslav Lichvar <mlichvar@...hat.com>, LKML
 <linux-kernel@...r.kernel.org>, Stephen Boyd <sboyd@...nel.org>,
 Anna-Maria Behnsen <anna-maria@...utronix.de>, Frederic Weisbecker
 <frederic@...nel.org>, Shuah Khan <shuah@...nel.org>,
 linux-kselftest@...r.kernel.org, kernel-team@...roid.com, Lei Chen
 <lei.chen@...rtx.com>
Subject: Re: [PATCH] timekeeping: Prevent coarse clocks going backwards

On Wed, Apr 16 2025 at 22:29, John Stultz wrote:
> Looking over the patch, it seems ok to me, but in a test run with it,
> I've seen an error with CLOCK_REALTIME_COARSE during the
> clocksource-switch test  (as well as some seemingly unrelated test
> errors, which I need to investigate) so I'm looking at the zeroing
> done in timekeeping_forward_now and will try to look more into this
> tomorrow.

Odd. I ran all the test nonsense here and did not run into any issues.