[Bug 282169] zfs rename deadlock with mountd, df & fstat (and possibly others)

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 20 Oct 2024 15:17:29 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282169

--- Comment #2 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to Mark Johnston from comment #1)
ah, I missed the comment at the top of the function.  The caller is expected to
call zfs_resume_fs() to release the locks, and it looks like that's handled
properly.

I think it'll be hard to track down what happened unless we can look at the
lock state using a vmcore or so.  I wonder if it'd be possible to re-trigger
the deadlock, and then panic the system to collect a core dump?

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