From owner-freebsd-net@freebsd.org Sun May 6 07:30:19 2018 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 7298FFAA90E for ; Sun, 6 May 2018 07:30:19 +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 07BFB69AD3 for ; Sun, 6 May 2018 07:30:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id C0362FAA90D; Sun, 6 May 2018 07:30:18 +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 AE09EFAA90C for ; Sun, 6 May 2018 07:30:18 +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 TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49EC269ACE for ; Sun, 6 May 2018 07:30:18 +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 8C7CC6AB for ; Sun, 6 May 2018 07:30:17 +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 w467UH3J059373 for ; Sun, 6 May 2018 07:30:17 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w467UHC0059361 for net@FreeBSD.org; Sun, 6 May 2018 07:30:17 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 166724] [re] if_re watchdog timeout Date: Sun, 06 May 2018 07:30:17 +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: 11.1-RELEASE X-Bugzilla-Keywords: needs-patch X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: zjk7@wp.pl X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: yongari@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: 2.1.25 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 May 2018 07:30:19 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D166724 --- Comment #25 from zjk --- hw.re.msi_disable hw.re.msix_disable I tested this solution for a few days (it already exists somewhere on the internet). There is no visible effect (on my computers) - network is closing very quic= kly.=20 But - maybe it depends on the network card chipset? However, I highly recommend the analysis: https://forums.freebsd.org/threads/10-2-release-re0-watchdog-timeout.55306/= #post-337045 There are some extremely important remarks. One important tip - this may be the result of overloading the processor. In general - a problem for low-performance processors. Or vice versa: for the "computationally demanding" chipset of the network card, and finally the "programmatically extended" driver. Probably because the version of "built-in" driver for FreeBSD is so much "slimmed", in relation to the full version from Realtek (from the Realtek website). It may be intended to run on less-efficient processors. But I can not fully appreciate everything from this analysis. "Watchdog timeout" messages - also occur after stopping the transmission. Processor l= oad drops to several percent, but watchdog timeout messages still appear every = few seconds. In general - a reset is needed to restore the normal operation of the interface. As a solution, you can use "patch" - instead of, for example, limit the connection speed to 100 Mb, you can use, for example, dummynet for flow / b= and management. It is still not a solution to the problem of the driver itself. --=20 You are receiving this mail because: You are on the CC list for the bug.=