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Date:   Wed, 20 Oct 2021 08:32:30 +0200
From:   Sebastian Andrzej Siewior <>
To:     Peter Zijlstra <>
Cc:     syzbot <>,,,,,,,,,,,,,,,
Subject: Re: [syzbot] possible deadlock in wake_up_all_idle_cpus

On 2021-10-19 22:27:41 [+0200], Peter Zijlstra wrote:
> On Tue, Oct 19, 2021 at 09:08:11PM +0200, Sebastian Andrzej Siewior wrote:
> > Does this do anything useful?
> I've got
> There's like 3 or 4 threads on this :/ I just got a tested-by on that.

Yeah I saw a few emails and wanted to talk to the bot, assuming it would
keep quiet then.

for_each_possible_cpu looks big but is probably equal to online_cpu in
most cases.

Thanks ;)


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