From nobody Mon Jul 11 08:51:09 2022 X-Original-To: net@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 A00C31CF868D for ; Mon, 11 Jul 2022 08:51:11 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LhHfl3cmlz4QhB for ; Mon, 11 Jul 2022 08:51:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 4LhHfl2hLTzxhl for ; Mon, 11 Jul 2022 08:51:11 +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 26B8pBKi098253 for ; Mon, 11 Jul 2022 08:51:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 26B8pB52098252 for net@FreeBSD.org; Mon, 11 Jul 2022 08:51:11 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: net@FreeBSD.org Subject: [Bug 264257] [tcp] Panic: Fatal trap 12: page fault while in kernel mode (if_io_tqg_4) - m_copydata ... at /usr/src/sys/kern/uipc_mbuf.c:659 Date: Mon, 11 Jul 2022 08:51:09 +0000 X-Bugzilla-Reason: CC AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-RELEASE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: tuexen@freebsd.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? maintainer-feedback- maintainer-feedback? mfc-stable13? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1657529471; 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=YeCE69jyuYlBr+JBjCyxfsUX3j7lNDxwgsvSKIx0+I8=; b=oPPdkrdGLOwsakqsBYKEx0pY0OmSFpey02LjKQzSUHlAbdIDczCMBzRt0rjzRagKeXwk0c kJEkL23LMcpu7utWVmFNxs7u2TisxLUEvQBpMvTCHh7VJeiTYlsdeSe/lwhL7MuaATE4AI kmD5cz2IHAhv9cBOHqNP2C1Z3cfzR3AZFObdto0iCRXC7zf8r89CiXVrP230SZfMTqo2YA 5+W/FMKVeXvc8aB8POVhQ6Ow1zLVLTeTlt/BqFWoBIFEBboctIAPV8b3peltl6e5GvFmJ+ V7TFVXtrcM9AcSFQfDOMYd4/rozEPoHniFMjoYeuZtyQz5qjGSRzVYFKdjv/Lw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1657529471; a=rsa-sha256; cv=none; b=ZhKj9M0JXfLxpsNao+gaUs2rd6tcAcpTbUQepGs13B24ZmMEeyhIQCzrUBTiJvy9zDsmxU scrMA/LLzVtP6f71I8rj/gGxhnA6C2bRZjeMCPNj1wKd3apy2OS3VYEz4rJi3xzRCIAtDS Tn7XYRtUElCQHxIp9Op/PK5ROgpMBDu8LR8ZeOdc6CtxrQRt3dsKY7kwJYuVqiXIPlEzWo BHk/TtrAkbQ9ENI5AOOY/abmbFhE0IlN6008+Gm2WkhDxpeCgrkQ1r11KzCyee9I9nItEY fdzFIUqjVzzHPUfcAJSqi7Z3JWKNhS7P7/i0XIlhP3NUtKibtm8iqWCUIYqNjg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264257 --- Comment #78 from Michael Tuexen --- From the pcap information we were able to reconstruct the packet sequence, = but not the exact timing. Unfortunately, we were not able to reproduce the issu= e. However, it seems hard, to extend the pcap logging. So I suggest to use the BlackBox Logging instead. Could you: * Add options TCP_BLACKBOX to you kernel configuration file and recompile the kernel. You can remove the TCPPCAP option, if you want. * Add net.inet.tcp.bb.log_auto_all=3D1 net.inet.tcp.bb.log_auto_ratio=3D1 net.inet.tcp.bb.log_auto_mode=3D1 net.inet.tcp.bb.log_session_limit=3D200 This should enable BlackBox Logging on all TCP connections and it will the = last 200 events per TCP connection stored in the end point. Once the system has cras= hed, please provide a core. This time we should not only get the packet being sent/received, but also internal TCP state variables and information about the retransmission timer. If this information is not enough, we can adhoc extend the TCP Black Box Logging. --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=