Date: Wed, 29 Nov 2023 21:10:29 +0000 From: Pete French <pete@twisted.org.uk> To: stable@freebsd.org Subject: Re: ZFS high CPU use after backup and panic on shutdown Message-ID: <3b1f5ed3-57ff-46f4-b8b5-1d57ef1b22df@twisted.org.uk> In-Reply-To: <e8a9d090-f8e9-78f0-37c7-a1e7bfc2a4dc@sentry.org> References: <6ccc544a-7919-57ab-5572-db67fa09ae76@sentry.org> <67606352-8546-7016-5e65-0f5c4dec8a19@sentry.org> <e8a9d090-f8e9-78f0-37c7-a1e7bfc2a4dc@sentry.org>
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On 29/11/2023 20:58, Trev wrote: > Trev wrote on 28/11/23 12:09 am: > ARGH. After a few days the issue has again returned. top -S -H shows > that the process which continues to consume 100% of one CPU core is > arc_prune, the same process that causes a kernel panic on shutdown. > > Any ideas on how to resolve this? > I would think you are seeing this: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=274698 Which was fixed by this: https://freshbsd.org/freebsd/src?q=commit%3A3ec4ea68d* So upgrade to a 14-STABLE after that and you will be fine. You probably want to upfrade as far as today though, to pick up some of the other fixes which went into OpenZFS. -pete.
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