From nobody Wed Feb 25 01:07:18 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 4fLGdy2vvcz6TSVb for ; Wed, 25 Feb 2026 01:07:18 +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 4fLGdy2SyYz3S2Q for ; Wed, 25 Feb 2026 01:07:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1771981638; 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=gRq2fWZSzp5wPzkJ/XF3jv109+HaWoDAgylpAMtEWFg=; b=dZDd4nRblhcXiF7OMJZ947aePxc7mOw09wEllOHhB4W+TInLZoUfy8Mf6trR7AI/aBgI8I 5ehM41SrN69pFpJ2yirj5QLWt1ovFk9x9E2Ta29XdJXdJiUflTDOPkeRiV7+c3PuhNhlVR Xgb0ByRhCJeHwzjtA9ApXdQyQ2MLvEvmGbbzkYK/u72H2dBGI8J3N7AZsDeRt9nhNL/v8T QWYshuUzVVT/oNuQMSnjYyT0BJNFkVx39zeJCDxgMR/cYBAMOrMKYoaOnyzQSEKqxPq2OK wf5i8YjIJzFRQ7CQUtvlLlrK8W8u9AOe9m7RmXq9whP3M8ReS8b8VQ1qjhrcTA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1771981638; a=rsa-sha256; cv=none; b=UJQNGIYjtPB2m3QbonkyUsZ6qaovkzIcX/6aFfsfS55+aa827algEOb7KttRzDt6bi0Wqc h+nyz0h+ao/KR3Ou+tGfvNLDO1KY7G1r9PEQquDV44aLpyM0lgNjeoLq9PbiiYQw3gnuRU Ukh+WgrVsdSB9AuPitwDhCLaCxQU8L5I8IUEPinvWgqYFiDbXFmh4x2/9Jz2fJNnjHyLeJ nTTzzPOyGFIxkL2cg8BB6TAdbmnpRSL+I9LRrvpsOwgqss7qgV5QfSCKh+iMDzE0wB9JEZ no2gU1q3vqONwAnofFL9HlKMkxzKP4biseCDrY6ymD25FvaaPAgrvn+Fe+WWrA== 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=1771981638; 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=gRq2fWZSzp5wPzkJ/XF3jv109+HaWoDAgylpAMtEWFg=; b=uPN/b1Qnl47+Fvi3jU5axSDfnebRCDMC/OwxPfDbIy9D1T2gcQwT7ONDVRR5+wS0YzgXIR uHNVmDphqsC7gt0VRbtyHY0Ws8xt8Rp8mbG7dhZygsL4jacmykwZBqY0yvkrG+C9cxVnR4 GsWgmumWI5HxQVg2jRNDX3/7na3InUSgUutenZXQ0QuZhBN+5zHcEJ+HpBI+xsu8QrRDUW 13WdFoMn+RoWqEZdM1Jgei2Dm0GltxwZt6KMAXDGNr9QQr/CDSHF+hkIrAJtTDk7vcXwNY Vc99EIZy2+Ol4PQr+8iGvIZYNDtufFZPXtG4DzNu0T3embisHPI9YPOSUh7nWQ== 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 4fLGdy1pB9zgXZ for ; Wed, 25 Feb 2026 01:07:18 +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 61P17IS0034654 for ; Wed, 25 Feb 2026 01:07:18 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 61P17IBT034653 for bugs@FreeBSD.org; Wed, 25 Feb 2026 01:07:18 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: Wed, 25 Feb 2026 01:07:18 +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: yuan.mei@gmail.com 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 #13 from yuan.mei@gmail.com --- (In reply to Mark Johnston from comment #12) OK. Going through /var/log/messages, I can see when the machine went into deadlock Feb 24 11:39:59 maynas kernel: Fatal trap 9: general protection fault while= in k ernel mode Feb 24 11:39:59 maynas kernel: cpuid =3D 6; apic id =3D 0c Feb 24 11:39:59 maynas kernel: instruction pointer =3D 0x20:0xffffffff80edc97 9 Feb 24 11:39:59 maynas kernel: stack pointer =3D 0x28:0xfffffe00d6f875d 0 Feb 24 11:39:59 maynas kernel: frame pointer =3D 0x28:0xfffffe00d6f875d0 Feb 24 11:39:59 maynas kernel: code segment =3D base 0x0, limit 0xfffff, type 0x1b Feb 24 11:39:59 maynas kernel: =3D DPL 0, pres 1, long 1, = def32 0, gran 1 Feb 24 11:39:59 maynas kernel: processor eflags =3D interrupt enabled, resu= me, IOPL =3D 0 Feb 24 11:39:59 maynas kernel: current process =3D 2270 (nfsd: mas= ter) Feb 24 11:39:59 maynas kernel: rdi: fffff80006593e00 rsi: fffff8002933c640 = rdx: deadc0dedeadc0de Feb 24 11:39:59 maynas kernel: rcx: fffff80229388400 r8: fffff8002f1577f8 = r9: 0000000001a10010 Feb 24 11:39:59 maynas kernel: rax: 0000000000000002 rbx: fffff80006593e00 = rbp: fffffe00d6f875d0 eb 24 11:39:59 maynas kernel: r10: 0000000000000000 r11: 0000000000000001 r= 12: fffff800291b8a50 Surely it is still triggered by nfsd, but unfortunately, there's no dump. = For this run, there's no nfs client at all. --=20 You are receiving this mail because: You are the assignee for the bug.=