[Bug 293127] Kernel panic __mtx_lock_sleep due to nfsd?

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 20 Mar 2026 22:31:35 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293127

--- Comment #31 from Rick Macklem <rmacklem@FreeBSD.org> ---
Created attachment 268963
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=268963&action=edit
svc.c: Fix a race with svc_checkidle()

Here's another patch you can try.
It fixes a race against svc_checkidle().

I'll admit I have not come up with an
explanation w.r.t. how this race could
cause serious problems like your crashes.
(This race has been in the code for a long
time and has not caused problems, afaik.)

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