From nobody Mon Feb 23 01:08:54 2026 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fK2mk5StTz6SR56 for ; Mon, 23 Feb 2026 01:08:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fK2mk4l9vz3xVP for ; Mon, 23 Feb 2026 01:08:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1771808934; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NIWIsAjOXENxZIygdhJOYWcjCRQsN2/9V4CRyLaGwkE=; b=CkYXoGCbp+TcGjeTYrXTGb3sSsNLJbsSV/3lw8isJwmHWDHCP+malVlD2+Fw7kq5/X965o AmEeJRB4mWd3ygO7mAGCcDEPJmahMDgyDnSmvrOWqTz2Xb3HEu2Apvi8YQtKyGVKASD88k xnGL7WvNLkhkpDqxgDgA3LgYHYlXw35gHDAHQzKCatZ668XXM0wjLDHSH2O+lu5uhCumz1 vPLuxEE3DWev2fBphdCZygqKqLYCeQp6EJZ5m61znpJucL+hulI9XPXMn56vDZY3FB+cjq vKlZ5cYaC+gwlOqnMrj6JXMPhWIr1HdfWQfMC5h8Pa10y9LRto5LgqM70amR2w== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1771808934; a=rsa-sha256; cv=none; b=bta6vgs1xIJCqv9KuuJz+S2GicjGpyCsZ39eX1OTM+38cy7b64fT9uvF777Eb5wtPslkUb leWhcw8E7+SbaDi+Qo/wKOYQaAGrc2NhVAb8ooYLrPD799NFKI28un9Mlmls1S1yyf8YOC pAVwKVUqj6ZjlqPmdJ8wEsd0vwAwewRsU/i1DyZetr88/tNj4cr6QILsYAlY1ltM7CkkxN CHDydIZ6prgfKk9aBjz3gq9Xy3p1Ws9KZcaAzsAaHGWuQuElnDAH6wra4TlWQ0Ec3C37M3 UMkQkL2VFAx128BxUx8qjWOZaJDQOEmcDkdHr7811DW5eS/GAC2I67Mj/XWzJQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1771808934; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NIWIsAjOXENxZIygdhJOYWcjCRQsN2/9V4CRyLaGwkE=; b=Ft83TAlJKOgzR2TWU4Lm4bWnVUKPazP4k3JHtaJ01GAsNLPXtqJ9iPp2TKiXMZ3As+XAau VTS+cYvztFwJ3vCRF9Bv+kapy4v1PeKl/sF9ZQJ9Y/5b/OzcZ7mjJmfodheAfMLDb+xyS4 nHiZFiNgeRViodUbmToJCGdIId+x8ifp/39ZUJaReQWBZ/pHOUCQCTQkYqXQJZa7zoo7PD wLM07QOZudlBJSn1cbXRfmHwCu2jzralcjhP+S/zqfIgi4GeT2yTpGNb1LSzqwQmzEVe1R uTfOU7WtxN6EScjWlKGZiydFuKXV0H9x9l6R8ynXg6VetXCJ/aXFVSaeUpz34g== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4fK2mk3ldlz17Q9 for ; Mon, 23 Feb 2026 01:08:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 61N18spA017866 for ; Mon, 23 Feb 2026 01:08:54 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 61N18sVH017865 for bugs@FreeBSD.org; Mon, 23 Feb 2026 01:08:54 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 293127] Kernel panic __mtx_lock_sleep due to nfsd? Date: Mon, 23 Feb 2026 01:08:54 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.0-STABLE X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rmacklem@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D293127 --- Comment #10 from Rick Macklem --- (In reply to yuan.mei from comment #7) This crash is very similar, but occurs in svc_dg.c (the UDP handling code). Could you try adding nfs_server_flags=3D"-t" to your /etc/rc.conf when running a kernel with the patch from PR#292884. (I am wondering if enabling UDP allows the UDP socket to somehow "go away" prematurely, as well.) --=20 You are receiving this mail because: You are the assignee for the bug.=