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From:
"Theo de Raadt" <deraadt@openbsd.org>
Subject:
Re: Unlock sysctl kern.maxclusters
To:
Vitaliy Makkoveev <mvs@openbsd.org>
Cc:
Mark Kettenis <mark.kettenis@xs4all.nl>, Alexander Bluhm <bluhm@openbsd.org>, tech@openbsd.org
Date:
Tue, 03 Jun 2025 08:19:26 -0600

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Can the operations in nmbclust_update() be done by sysctl storing a single
new value, which is observed later in a codepath (which already needs locking
against subsystems below), as being different from the current variable, and
then it changes what it needs?