[Bug 292884] nfsd causes kernel panic

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 25 Mar 2026 21:01:08 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292884

Rick Macklem <rmacklem@FreeBSD.org> changed:

           What    |Removed                     |Added
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           Assignee|bugs@FreeBSD.org            |rmacklem@FreeBSD.org

--- Comment #32 from Rick Macklem <rmacklem@FreeBSD.org> ---
Created attachment 269114
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=269114&action=edit
svc.c: Fix a race with svc_checkidle()

This patch fixes a long standing race in
svc.c between svc_run_internal() and
svc_checkidle().  I have known about this
race for a long time, but was convinced that
it was harmless.

However, the reporter of PR#293127 (which I
think is the same problem, but they found
that attachment #268761 did not stop their
crashes).

Anyhow, they are having better results with
this patch applied, so I was wondering if
anyone experiencing this bug could try this
patch instead of attachment #268761 and see
if they experience more crashes?

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