From: Daniel Jordan <daniel.m.jordan@oracle.com>
To: Alexey Klimov <aklimov@redhat.com>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Cc: peterz@infradead.org, yury.norov@gmail.com, tglx@linutronix.de,
jobaker@redhat.com, audralmitchel@gmail.com, arnd@arndb.de,
gregkh@linuxfoundation.org, rafael@kernel.org, tj@kernel.org,
lizefan@huawei.com, qais.yousef@arm.com, hannes@cmpxchg.org,
klimov.linux@gmail.com
Subject: Re: [RFC][PATCH] cpu/hotplug: wait for cpuset_hotplug_work to finish on cpu online
Date: Tue, 08 Dec 2020 21:09:35 -0500 [thread overview]
Message-ID: <87k0trvig0.fsf@oracle.com> (raw)
In-Reply-To: <20201203171431.256675-1-aklimov@redhat.com>
Alexey Klimov <aklimov@redhat.com> writes:
> I also in doubts if we need cpuset_wait_for_hotplug() in cpuhp_online_cpu_device()
> since an online uevent is sent there too.
We do need it there if we go with this fix. Your reproducer hits the
same issue when it's changed to exercise smt/control instead of
cpuN/online.
prev parent reply other threads:[~2020-12-09 2:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-03 17:14 [RFC][PATCH] cpu/hotplug: wait for cpuset_hotplug_work to finish on cpu online Alexey Klimov
2020-12-07 8:38 ` Peter Zijlstra
2020-12-09 2:40 ` Daniel Jordan
2021-01-15 3:21 ` Daniel Jordan
2021-01-19 16:52 ` Alexey Klimov
2021-01-21 2:09 ` Daniel Jordan
2020-12-09 2:09 ` Daniel Jordan [this message]
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