From nobody Wed Feb 25 00:56:22 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 4fLGPL5x5Mz6TRMh for ; Wed, 25 Feb 2026 00:56:22 +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 4fLGPL5GPvz3QMk for ; Wed, 25 Feb 2026 00:56:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1771980982; 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=Mmtt8w2zx45RujLNYQp1VUKvYDNmhPZRh+2iK7+9QCY=; b=YIfsea0A0tWzv3MZM2GgcFNqz1NyYxwMaq7xTvzcTQicS9kjfSq+L4pun6PwpF/2xakR7d 69MwT8yfmHBDx6Qy8J/uPsXs9Rc/Z9QFkNSJQ3qUBW2QUXFci6Nr4evGAnVzDIPm0g4Kwp wbKF6CjEiTmFOF2Q6Ge0K/VxmBD4IgDLsqx2g8vNZ2bf6eq43Fc2+/Sz5v4f14axYY+wo1 HkZkHXuPQz5oaUio5N/OMdYqZnxnhLqEhLd5tdqaRdGMABqwb+BVgb0pyU0oumGIawCW65 lRmOf/J22N8n3lXvYA/X0wwcjCZbPIb77JXTo21eepg1HCMOieXIttPx1QPq1A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1771980982; a=rsa-sha256; cv=none; b=dfE3trPB1NGeivuI72KRnTorsaKig8DA1fBFuFi3+vg837Jc/wARIL6iTFd1i9Z1Nnna4N ONMEL3df0255PWsC8HXSnMtbS721QHh1Mo8a2d60/yiNt+3ux7QpAf6gLlSJv4gq7+kxxM r+1+wtPWpc6r2KnfKlzO98uoPCQO9ZKMnc/Hf4eKRasg1dLLBUk3CWF6zALU2dAbTtjtgX N2X2/J7Pw/9ggAxhj+pjZxGkUyHXCc1U3rodnjyz4m8asfzj/i8MCOTC5vx7JgqWB7n0sR fiXUMAK7Y1nonglAsWFwLBP5F7EbP+qenP6+7NHkkkWFJml/T0k67zMIRfEXTA== 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=1771980982; 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=Mmtt8w2zx45RujLNYQp1VUKvYDNmhPZRh+2iK7+9QCY=; b=AHz03HG5wUw3Ue6R8a4TErv4XfYouEvug4p5OCMInygolh0u2chVrLSBhnjNTyYCP0cYr2 MtbyY6/723ZPxgfArT4mq8qI0TbSeKcNR0vWN6UPreZ+tg82ywp0SM71vaPXsuEx9ziZBa +S/9UvGzztTWUzPnsY46lpfQe61fy3xxvf66Yq9PfEJu84RJI9Hhx4FmDGPYkOEshOtvj6 XFL5vDj/MXk0j/ZnEcAnxNsBoXYfoXAAkK72x+xg8uKt3n7+ssflUVmTMhnA1eL648itij RT0ZoNQrQzTdX7AUqglLbf7bCybS9LMd2YGsUdH8EY8bP+BFQe2GdrCU6LYjYA== 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 4fLGPL4YpdzgcN for ; Wed, 25 Feb 2026 00:56:22 +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 61P0uMpj018765 for ; Wed, 25 Feb 2026 00:56:22 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 61P0uMpn018764 for bugs@FreeBSD.org; Wed, 25 Feb 2026 00:56:22 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 00:56:22 +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 #11 from yuan.mei@gmail.com --- (In reply to Mark Johnston from comment #9) I ran GENERIC-DEBUG kernel for a few days. The machine went into a deadlock state (had to hard reset) and did not generate a dump. However, in an old dmesg save, there's the following message. Not sure if this is relevant. lock order reversal: 1st 0xfffffe00c4489a00 tcphash (tcphash, sleep mutex) @ /usr/src/sys/netinet/tcp_usrreq.c:1529 2nd 0xffffffff822e8ae0 in6_ifaddr_lock (in6_ifaddr_lock, rm) @ /usr/src/sys/netinet6/in6_src.c:293 lock order tcphash -> in6_ifaddr_lock attempted at: #0 0xffffffff80c0eb21 at witness_checkorder+0xbe1 #1 0xffffffff80b8dc79 at _rm_rlock_debug+0x129 #2 0xffffffff80de61fd at in6_selectsrc+0x3fd #3 0xffffffff80de5d9d at in6_selectsrc_socket+0x6d #4 0xffffffff80de3861 at in6_pcbconnect+0x291 #5 0xffffffff80dc6877 at tcp6_connect+0xb7 #6 0xffffffff80dc41f5 at tcp6_usr_connect+0x2f5 #7 0xffffffff80c4f500 at soconnectat+0xc0 #8 0xffffffff80c577d1 at kern_connectat+0xe1 #9 0xffffffff80c576c1 at sys_connect+0x81 #10 0xffffffff810eb979 at amd64_syscall+0x169 #11 0xffffffff810bd36b at fast_syscall_common+0xf8 Limiting icmp ping response from 193 to 192 packets/sec The machine has been rebooted and running the GENERIC-DEBUG kernel again. = Will see what happens. --=20 You are receiving this mail because: You are the assignee for the bug.=