From: Peter Zijlstra <peterz@infradead.org>
To: Thomas Gleixner <tglx@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>, Calvin Owens <calvin@wbinvd.org>,
Petr Mladek <pmladek@suse.com>,
linux-kernel@vger.kernel.org, arighi@nvidia.com,
yaozhenguo1@gmail.com, tj@kernel.org,
feng.tang@linux.alibaba.com, lirongqing@baidu.com,
realwujing@gmail.com, hu.shengming@zte.com.cn,
dianders@chromium.org, joel.granados@kernel.org,
Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
x86@kernel.org
Subject: Re: [PATCH] clockevents: Prevent timer interrupt starvation
Date: Sat, 4 Apr 2026 00:21:21 +0200 [thread overview]
Message-ID: <20260403222121.GI2872@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <87pl4f66ac.ffs@tglx>
On Sat, Apr 04, 2026 at 12:14:03AM +0200, Thomas Gleixner wrote:
> On Fri, Apr 03 2026 at 23:24, Thomas Gleixner wrote:
>
> > On Fri, Apr 03 2026 at 23:01, Peter Zijlstra wrote:
> >> On Fri, Apr 03, 2026 at 06:17:15PM +0200, Thomas Gleixner wrote:
> >>
> >> Doesn't that want to be something like this instead?
> >
> > Duh. Yes. I'm clearly not seeing the forest for the trees anymore.
>
> But thinking more about it. That's a stretch for backporting.
Yeah, that cocci patch results in quite a large actual patch :-)
> So I rather stay with the current approach and do the cleanup on top,
> which then also should obviously do
>
> dev->next_event = KTIME_MAX;
>
> and remove it from the handlers, no?
Works for me.
next prev parent reply other threads:[~2026-04-03 22:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-24 23:32 [BUG] Random hard lockup with userspace %ip on 7.0-rc5 Calvin Owens
2026-03-25 9:03 ` Petr Mladek
2026-03-25 16:56 ` Thomas Gleixner
2026-04-01 1:58 ` Calvin Owens
2026-04-01 15:01 ` Thomas Gleixner
2026-04-01 15:12 ` Borislav Petkov
2026-04-01 16:34 ` Borislav Petkov
2026-04-02 17:07 ` [PATCH] clockevents: Prevent timer interrupt starvation Thomas Gleixner
2026-04-03 5:11 ` Calvin Owens
2026-04-03 14:41 ` Thomas Gleixner
2026-04-03 15:58 ` Calvin Owens
2026-04-03 19:00 ` Thomas Gleixner
2026-04-04 0:15 ` Calvin Owens
2026-04-08 8:52 ` Thomas Gleixner
2026-04-03 12:16 ` Peter Zijlstra
2026-04-03 14:43 ` Thomas Gleixner
2026-04-03 16:17 ` Thomas Gleixner
2026-04-03 21:01 ` Peter Zijlstra
2026-04-03 21:24 ` Thomas Gleixner
2026-04-03 22:14 ` Thomas Gleixner
2026-04-03 22:21 ` Peter Zijlstra [this message]
2026-03-27 1:36 ` [BUG] Random hard lockup with userspace %ip on 7.0-rc5 Feng Tang
2026-03-27 15:36 ` Calvin Owens
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