[Bug 280978] Kernel panics with vfs.nfsd.enable_locallocks=1 and nfs clients doing hdf5 file operations

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 10 Sep 2024 23:43:18 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280978

Rick Macklem <rmacklem@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |rmacklem@FreeBSD.org

--- Comment #2 from Rick Macklem <rmacklem@FreeBSD.org> ---
Just fyi, I have found a place where the code
does an msleep() when vfs.nfs.enable_locallocks is 1.
This is bad news, since the underlying linked list
data structures could change during the msleep().

I haven't yet gotten to the point of coming up with
a fix.

Until then, I would recommend avoiding setting
vfs.nfsd.enable_locallocks to 1.

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