linux-kernel - Re: [PATCH] tick/rcu: fix false positive "softirq work is pending" messages on RT

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Message-ID: <20230831133214.XF2yjiEb@linutronix.de>
Date:   Thu, 31 Aug 2023 15:32:14 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Frederic Weisbecker <frederic@...nel.org>
Cc:     "Paul E. McKenney" <paulmck@...nel.org>,
        Wen Yang <wenyang.linux@...mail.com>,
        paul.gortmaker@...driver.com, LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] tick/rcu: fix false positive "softirq work is pending"
 messages on RT

On 2023-08-28 17:03:39 [+0200], Frederic Weisbecker wrote:
> > Frederic would normally take this, but he appears to be out.  So I am
> > (probably only temporarily) queueing this in -rcu for more testing
> > coverage.
> 
> I'm back, I should relay this to Thomas to avoid conflicts with
> timers changes.

I somehow missed this thread and I do see this if I enable NO_HZ. I lost
it…
Anyway, I'm going to pick it up for RT and ping the timer department
after the merge window.

> Thanks all of you, clearly I wasn't thinking much the day I wrote this
> patch.
:)

Sebastian