[Bug 293127] Kernel panic __mtx_lock_sleep due to nfsd?

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 25 Feb 2026 01:18:29 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293127

--- Comment #14 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to yuan.mei from comment #13)
oh, interesting. Is the a stack trace?

An nfsd thread faulted on 0xdeadc0de, which implies a use-after-free somewhere.
 If you're willing to try it, you could test a GENERIC-KASAN kernel, that
should help catch the UAF as it happens.  Note that such kernels are quite
slow, and aren't very well-tested on hardware, so you might run into unrelated
problems.

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