From nobody Thu Aug 26 12:30:22 2021 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 4728D1789104 for ; Thu, 26 Aug 2021 12:30:23 +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 4GwMcv1SgCz3kNb for ; Thu, 26 Aug 2021 12:30:23 +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 1ADA17979 for ; Thu, 26 Aug 2021 12:30:23 +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 17QCUNfw086014 for ; Thu, 26 Aug 2021 12:30:23 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 17QCUN7h086013 for net@FreeBSD.org; Thu, 26 Aug 2021 12:30:23 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 254695] Hyper-V + TCP_BBR: Kernel Panic: Assertion in_epoch(net_epoch_preempt) failed at netinet/tcp_lro.c:1180 Date: Thu, 26 Aug 2021 12:30:22 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: gbe@FreeBSD.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: tuexen@freebsd.org X-Bugzilla-Flags: mfc-stable13? mfc-stable12? 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 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254695 --- Comment #39 from Gordon Bergling --- (In reply to Michael Tuexen from comment #38) I tested D31679 and haven't system is running stable. I did some iperf3 tes= ting and the performance is somewhat strange when enabling TCP BBR. With the def= ault stack I got [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 268 MBytes 2.24 Gbits/sec 4646 78.4 KBytes [ 5] 1.00-2.00 sec 304 MBytes 2.55 Gbits/sec 5520 85.5 KBytes [ 5] 2.00-3.00 sec 305 MBytes 2.56 Gbits/sec 5474 106 KBytes [ 5] 3.00-4.00 sec 311 MBytes 2.61 Gbits/sec 5705 1.41 KBytes [ 5] 4.00-5.00 sec 303 MBytes 2.54 Gbits/sec 5565 71.3 KBytes [ 5] 5.00-6.00 sec 305 MBytes 2.56 Gbits/sec 5474 88.4 KBytes [ 5] 6.00-7.00 sec 302 MBytes 2.53 Gbits/sec 5566 78.4 KBytes [ 5] 7.00-8.00 sec 287 MBytes 2.41 Gbits/sec 5198 65.6 KBytes [ 5] 8.00-9.00 sec 309 MBytes 2.60 Gbits/sec 5566 67.1 KBytes [ 5] 9.00-10.00 sec 297 MBytes 2.49 Gbits/sec 5520 65.6 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 2.92 GBytes 2.51 Gbits/sec 54234 sen= der [ 5] 0.00-10.00 sec 2.92 GBytes 2.51 Gbits/sec recei= ver and with TCP BBR [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.02 sec 22.4 MBytes 183 Mbits/sec 806 17.0 KBytes [ 5] 1.02-2.00 sec 8.48 KBytes 71.1 Kbits/sec 4 17.0 KBytes [ 5] 2.00-3.01 sec 0.00 Bytes 0.00 bits/sec 2 17.0 KBytes [ 5] 3.01-4.02 sec 2.83 KBytes 23.1 Kbits/sec 1 17.0 KBytes [ 5] 4.02-5.05 sec 2.83 KBytes 22.5 Kbits/sec 2 17.0 KBytes [ 5] 5.05-6.05 sec 0.00 Bytes 0.00 bits/sec 0 17.0 KBytes [ 5] 6.05-7.05 sec 2.83 KBytes 23.2 Kbits/sec 1 17.0 KBytes [ 5] 7.05-8.05 sec 0.00 Bytes 0.00 bits/sec 0 17.0 KBytes [ 5] 8.05-9.02 sec 0.00 Bytes 0.00 bits/sec 1 17.0 KBytes [ 5] 9.02-10.04 sec 0.00 Bytes 0.00 bits/sec 0 17.0 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.04 sec 22.4 MBytes 18.7 Mbits/sec 817 sender [ 5] 0.00-10.04 sec 22.1 MBytes 18.4 Mbits/sec recei= ver Tested from VM to VM on the same host. But at least the panic is gone. --=20 You are receiving this mail because: You are on the CC list for the bug.=