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From:   Valentin Schneider <valentin.schneider@arm.com>
To:     John Keeping <john@metanate.com>
Cc:     linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        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>,
        Daniel Bristot de Oliveira <bristot@redhat.com>
Subject: Re: [PATCH] sched/rt: Plug rt_mutex_setprio() vs push_rt_task() race
In-Reply-To: <20220121194718.5e32bc19.john@metanate.com>
References: <20220120194037.650433-1-valentin.schneider@arm.com> <8735li6vgq.mognet@arm.com> <20220121194718.5e32bc19.john@metanate.com>
Date:   Mon, 24 Jan 2022 12:39:56 +0000
Message-ID: <878rv5489v.mognet@arm.com>
MIME-Version: 1.0
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On 21/01/22 19:47, John Keeping wrote:
> On Thu, 20 Jan 2022 19:47:01 +0000
> Valentin Schneider <valentin.schneider@arm.com> wrote:
>
>> On 20/01/22 19:40, Valentin Schneider wrote:
>> > Link: http://lore.kernel.org/r/Yb3vXx3DcqVOi+EA@donbot
>> > Fixes: a7c81556ec4d ("sched: Fix migrate_disable() vs rt/dl balancing")
>> > Reported-by: John Keeping <john@metanate.com>
>> > Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>  
>> 
>> @John: it's slightly different than the few things we got you to try out,
>> so I didn't keep your tested-by, sorry!
>
> I ran a test with this version as well and as expected this does indeed
> fix the issue, so this is also:
>
> Tested-by: John Keeping <john@metanate.com>

Thanks for testing this again!