From owner-freebsd-net@freebsd.org Mon Jan 14 18:23:54 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 023F91482DC2 for ; Mon, 14 Jan 2019 18:23:54 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 7634A6F382 for ; Mon, 14 Jan 2019 18:23:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 346A81482DBF; Mon, 14 Jan 2019 18:23:53 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0F4B31482DBE for ; Mon, 14 Jan 2019 18:23:53 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9E69C6F37F for ; Mon, 14 Jan 2019 18:23:52 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id C486315F09 for ; Mon, 14 Jan 2019 18:23:51 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x0EINpC7016816 for ; Mon, 14 Jan 2019 18:23:51 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x0EINpWu016815 for net@FreeBSD.org; Mon, 14 Jan 2019 18:23:51 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 234444] cc_htcp + TCP_RFC7413 panic Date: Mon, 14 Jan 2019 18:23:51 +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: 11.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: tuexen@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: 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 MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Jan 2019 18:23:54 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234444 --- Comment #8 from Michael Tuexen --- (In reply to Sergey Samoyloff from comment #6) Here is the config I'm using when trying to reproduce it: tuexen@stable11:~ % uname -a FreeBSD stable11 11.2-RELEASE-p8 FreeBSD 11.2-RELEASE-p8 #0 r342950: Fri Ja= n 11 23:37:10 CET 2019=20=20=20=20 tuexen@stable11:/usr/home/tuexen/releng/11.2/sys/amd64/compile/TCP amd64 tuexen@stable11:~ % sysctl net.inet.tcp.cc.algorithm net.inet.tcp.cc.algorithm: htcp tuexen@stable11:~ % sysctl net.inet.tcp.cc.htcp net.inet.tcp.cc.htcp.rtt_scaling: 1 net.inet.tcp.cc.htcp.adaptive_backoff: 1 tuexen@stable11:~ % sysctl net.inet.tcp.fastopen.enabled net.inet.tcp.fastopen.enabled: 1 tuexen@stable11:~ % cat stable/11/sys/amd64/conf/TCP include GENERIC ident TCP=20=20=20=20=20 makeoptions WITH_EXTRA_TCP_STACKS=3D1 options TCP_RFC7413 options IPFIREWALL options IPFIREWALL_VERBOSE options IPFIREWALL_VERBOSE_LIMIT=3D5 options IPFIREWALL_DEFAULT_TO_ACCEPT tuexen@stable11:~ % cat /etc/make.conf=20 MODULES_OVERRIDE=3Dtcp cc opensolaris dtrace I have a HTTP server supporting TCP fast open running and an sshd not using= TCP fast open. I can log into the machine without problems, and access the HTTP server actually using TCP fast open. So the problem is not just using a combination of the CC module and using T= CP fast open. Just to double check: When you compiled you custom kernel with TCP fast open enabled, you also recompiled the kernel modules you are using, right? --=20 You are receiving this mail because: You are the assignee for the bug.=