From owner-freebsd-net@freebsd.org Mon Nov 9 09:35:14 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C378DA29F1B for ; Mon, 9 Nov 2015 09:35:14 +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 mx1.freebsd.org (Postfix) with ESMTPS id 94AC31E71 for ; Mon, 9 Nov 2015 09:35:14 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id tA99ZEg7008097 for ; Mon, 9 Nov 2015 09:35:14 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 200221] em0 watchdog timeout under load Date: Mon, 09 Nov 2015 09:35:12 +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: 10.1-RELEASE X-Bugzilla-Keywords: IntelNetworking, needs-qa, patch X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: jcigar@ulb.ac.be X-Bugzilla-Status: In Progress X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-net@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: mfc-stable10? X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit 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: 2.1.20 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, 09 Nov 2015 09:35:14 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200221 Julien Cigar changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jcigar@ulb.ac.be --- Comment #20 from Julien Cigar --- Hello, I'm running 10.2-RELEASE on a HP Proliant Microserver with the following network interface: em0@pci0:2:0:0: class=0x020000 card=0xa01f8086 chip=0x10d38086 rev=0x00 hdr=0x00 vendor = 'Intel Corporation' device = '82574L Gigabit Network Connection' class = network subclass = ethernet The machine run an NFS server and unless I mount the shared folder with a rsize/wsize of 32768 I'm experiencing watchdog timeouts after a few minutes under load (for ex streaming a movie): Nov 7 23:25:26 mordor kernel: em0: Watchdog timeout Queue[0]-- resetting Nov 7 23:25:26 mordor kernel: Interface is RUNNING and ACTIVE Nov 7 23:25:26 mordor kernel: em0: TX Queue 0 ------ Nov 7 23:25:26 mordor kernel: em0: hw tdh = 508, hw tdt = 402 Nov 7 23:25:26 mordor kernel: em0: Tx Queue Status = -2147483648 Nov 7 23:25:26 mordor kernel: em0: TX descriptors avail = 93 Nov 7 23:25:26 mordor kernel: em0: Tx Descriptors avail failure = 0 Nov 7 23:25:26 mordor kernel: em0: RX Queue 0 ------ Nov 7 23:25:26 mordor kernel: em0: hw rdh = 206, hw rdt = 205 Nov 7 23:25:26 mordor kernel: em0: RX discarded packets = 0 Nov 7 23:25:26 mordor kernel: em0: RX Next to Check = 206 Nov 7 23:25:26 mordor kernel: em0: RX Next to Refresh = 205 Nov 7 23:25:26 mordor kernel: em0: link state changed to DOWN Nov 7 23:25:30 mordor kernel: em0: link state changed to UP ... and I have to do an "hard" reboot -- You are receiving this mail because: You are the assignee for the bug.