Date: Sat, 13 Mar 2021 07:20:32 GMT From: Kyle Evans <kevans@FreeBSD.org> To: doc-committers@FreeBSD.org, dev-commits-doc-all@FreeBSD.org Subject: git: fdef22474f - main - relnotes/13.0: add note about jail(8) cpuset behavior Message-ID: <202103130720.12D7KWrZ044064@gitrepo.freebsd.org>
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The branch main has been updated by kevans (ports, src committer): URL: https://cgit.FreeBSD.org/doc/commit/?id=fdef22474f7a79bb6cb918fc391fab4384ec5ac1 commit fdef22474f7a79bb6cb918fc391fab4384ec5ac1 Author: Kyle Evans <kevans@FreeBSD.org> AuthorDate: 2021-03-05 14:01:30 +0000 Commit: Kyle Evans <kevans@FreeBSD.org> CommitDate: 2021-03-13 07:19:43 +0000 relnotes/13.0: add note about jail(8) cpuset behavior Attaching processes will now largely retain their cpu masks, which is a fairly large and notable change from previous releases. Reviewed by: me_igalic.co Approved by: gjb (implicit) Differential Revision: https://reviews.freebsd.org/D29081 --- website/content/en/releases/13.0R/relnotes.adoc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/website/content/en/releases/13.0R/relnotes.adoc b/website/content/en/releases/13.0R/relnotes.adoc index 4fcd232378..ee893c643c 100644 --- a/website/content/en/releases/13.0R/relnotes.adoc +++ b/website/content/en/releases/13.0R/relnotes.adoc @@ -157,6 +157,10 @@ This section covers changes to kernel configurations, system tuning, and system [[kernel-general]] === General Kernel Changes +Processes that attach to a {{< manpage "jail" "8" >}} will now completely rebase their {{< manpage "cpuset" "1" >}} onto the jail's cpuset. +Notably, if a process had been assigned a numbered cpuset then it will be assigned a new numbered set that is the combination of CPUs +allowed to the attaching process and the jail. +Processes belonging to the superuser will implicitly widen their CPU mask as needed if they share no CPUs in common with the jail. [[drivers]] == Devices and Drivers
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