On Wed, 2021-01-06 at 11:53 -0800, Paul E. McKenney wrote:
> On Wed, Jan 06, 2021 at 11:28:00AM -0500, Rik van Riel wrote:
>
> > + wdagain_nsec = clocksource_cyc2ns(delta, watchdog-
> > > mult, watchdog->shift);
> > + if (wdagain_nsec < 0 || wdagain_nsec >
> >
On Wed, Jan 06, 2021 at 11:28:00AM -0500, Rik van Riel wrote:
> On Tue, 2021-01-05 at 16:41 -0800, paul...@kernel.org wrote:
> >
> > @@ -203,7 +204,6 @@ static void
> > clocksource_watchdog_inject_delay(void)
> > injectfail = inject_delay_run;
> > if (!(++injectfail /
On Tue, 2021-01-05 at 16:41 -0800, paul...@kernel.org wrote:
>
> @@ -203,7 +204,6 @@ static void
> clocksource_watchdog_inject_delay(void)
> injectfail = inject_delay_run;
> if (!(++injectfail / inject_delay_run % inject_delay_freq)) {
> printk("%s(): Injecting
From: "Paul E. McKenney"
When the clocksource watchdog marks a clock as unstable, this might
be due to that clock being unstable or it might be due to delays that
happen to occur between the reads of the two clocks. Yes, interrupts are
disabled across those two reads, but there are no shortage
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