From owner-freebsd-stable@FreeBSD.ORG Fri Aug 8 20:44:57 2014 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 62C22E82; Fri, 8 Aug 2014 20:44:57 +0000 (UTC) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [IPv6:2607:f3e0:0:1::12]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smarthost.sentex.ca", Issuer "smarthost.sentex.ca" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 22F212934; Fri, 8 Aug 2014 20:44:57 +0000 (UTC) Received: from [IPv6:2607:f3e0:0:4:f025:8813:7603:7e4a] (saphire3.sentex.ca [IPv6:2607:f3e0:0:4:f025:8813:7603:7e4a]) by smarthost1.sentex.ca (8.14.9/8.14.9) with ESMTP id s78Kiqxb002722; Fri, 8 Aug 2014 16:44:52 -0400 (EDT) (envelope-from mike@sentex.net) Message-ID: <53E536AC.9060304@sentex.net> Date: Fri, 08 Aug 2014 16:44:28 -0400 From: Mike Tancsa Organization: Sentex Communications User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Jack Vogel Subject: Re: svn commit: r267935 - head/sys/dev/e1000 References: <201406262133.s5QLXXP8029811@svn.freebsd.org> <20140804212220.GC48614@rancor.immure.com> <20140805130144.GF40246@rancor.immure.com> <53E51D62.9000507@sentex.net> <53E52762.7040300@sentex.net> In-Reply-To: <53E52762.7040300@sentex.net> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.74 Cc: "stable@freebsd.org" , Ed Maste , hiren panchasara X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Aug 2014 20:44:57 -0000 On 8/8/2014 3:39 PM, Mike Tancsa wrote: > time and then see if disabling msix makes any difference. > > Debug output post ifconfig down and up shows > > > Interface is RUNNING and ACTIVE > em0: hw tdh = 947, hw tdt = 947 > em0: hw rdh = 97, hw rdt = 96 > em0: Tx Queue Status = 0 > em0: TX descriptors avail = 1024 > em0: Tx Descriptors avail failure = 50 > em0: RX discarded packets = 0 > em0: RX Next to Check = 97 > em0: RX Next to Refresh = 96 And while in a hung state, the nic thinks its still active and forwarding. I am going to see if disabling msi-x has any help here. If not, I will roll back the driver for now. Aug 8 16:42:21 zoo kernel: Interface is RUNNING and ACTIVE Aug 8 16:42:21 zoo kernel: em0: hw tdh = 411, hw tdt = 134 Aug 8 16:42:21 zoo kernel: em0: hw rdh = 688, hw rdt = 687 Aug 8 16:42:21 zoo kernel: em0: Tx Queue Status = 1 Aug 8 16:42:21 zoo kernel: em0: TX descriptors avail = 261 Aug 8 16:42:21 zoo kernel: em0: Tx Descriptors avail failure = 50 Aug 8 16:42:21 zoo kernel: em0: RX discarded packets = 0 Aug 8 16:42:21 zoo kernel: em0: RX Next to Check = 688 Aug 8 16:42:21 zoo kernel: em0: RX Next to Refresh = 687 dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.4.2 dev.em.0.%driver: em dev.em.0.%location: slot=0 function=0 dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086 subdevice=0xa01f class=0x020000 dev.em.0.%parent: pci4 dev.em.0.nvm: -1 dev.em.0.debug: -1 dev.em.0.fc: 3 dev.em.0.rx_int_delay: 0 dev.em.0.tx_int_delay: 66 dev.em.0.rx_abs_int_delay: 66 dev.em.0.tx_abs_int_delay: 66 dev.em.0.itr: 488 dev.em.0.rx_processing_limit: 100 dev.em.0.eee_control: 1 dev.em.0.link_irq: 8266 dev.em.0.mbuf_alloc_fail: 0 dev.em.0.cluster_alloc_fail: 0 dev.em.0.dropped: 0 dev.em.0.tx_dma_fail: 0 dev.em.0.rx_overruns: 0 dev.em.0.watchdog_timeouts: 1 dev.em.0.device_control: 1477444168 dev.em.0.rx_control: 67141634 dev.em.0.fc_high_water: 18432 dev.em.0.fc_low_water: 16932 dev.em.0.queue0.txd_head: 411 dev.em.0.queue0.txd_tail: 142 dev.em.0.queue0.tx_irq: 833840 dev.em.0.queue0.no_desc_avail: 50 dev.em.0.queue0.rxd_head: 688 dev.em.0.queue0.rxd_tail: 687 dev.em.0.queue0.rx_irq: 1567748 dev.em.0.mac_stats.excess_coll: 0 dev.em.0.mac_stats.single_coll: 0 dev.em.0.mac_stats.multiple_coll: 0 dev.em.0.mac_stats.late_coll: 0 dev.em.0.mac_stats.collision_count: 0 dev.em.0.mac_stats.symbol_errors: 0 dev.em.0.mac_stats.sequence_errors: 0 dev.em.0.mac_stats.defer_count: 0 dev.em.0.mac_stats.missed_packets: 8290 dev.em.0.mac_stats.recv_no_buff: 0 dev.em.0.mac_stats.recv_undersize: 0 dev.em.0.mac_stats.recv_fragmented: 0 dev.em.0.mac_stats.recv_oversize: 0 dev.em.0.mac_stats.recv_jabber: 0 dev.em.0.mac_stats.recv_errs: 0 dev.em.0.mac_stats.crc_errs: 0 dev.em.0.mac_stats.alignment_errs: 0 dev.em.0.mac_stats.coll_ext_errs: 0 dev.em.0.mac_stats.xon_recvd: 0 dev.em.0.mac_stats.xon_txd: 0 dev.em.0.mac_stats.xoff_recvd: 0 dev.em.0.mac_stats.xoff_txd: 0 dev.em.0.mac_stats.total_pkts_recvd: 7512226 dev.em.0.mac_stats.good_pkts_recvd: 7503936 dev.em.0.mac_stats.bcast_pkts_recvd: 3120 dev.em.0.mac_stats.mcast_pkts_recvd: 8 dev.em.0.mac_stats.rx_frames_64: 3190 dev.em.0.mac_stats.rx_frames_65_127: 7070773 dev.em.0.mac_stats.rx_frames_128_255: 337062 dev.em.0.mac_stats.rx_frames_256_511: 1073 dev.em.0.mac_stats.rx_frames_512_1023: 1483 dev.em.0.mac_stats.rx_frames_1024_1522: 90355 dev.em.0.mac_stats.good_octets_recvd: 711645613 dev.em.0.mac_stats.good_octets_txd: 21278718407 dev.em.0.mac_stats.total_pkts_txd: 14406827 dev.em.0.mac_stats.good_pkts_txd: 14406827 dev.em.0.mac_stats.bcast_pkts_txd: 65 dev.em.0.mac_stats.mcast_pkts_txd: 11 dev.em.0.mac_stats.tx_frames_64: 421 dev.em.0.mac_stats.tx_frames_65_127: 183151 dev.em.0.mac_stats.tx_frames_128_255: 28761 dev.em.0.mac_stats.tx_frames_256_511: 10267 dev.em.0.mac_stats.tx_frames_512_1023: 289241 dev.em.0.mac_stats.tx_frames_1024_1522: 13894986 dev.em.0.mac_stats.tso_txd: 1322639 dev.em.0.mac_stats.tso_ctx_fail: 0 dev.em.0.interrupts.asserts: 71 dev.em.0.interrupts.rx_pkt_timer: 0 dev.em.0.interrupts.rx_abs_timer: 0 dev.em.0.interrupts.tx_pkt_timer: 0 dev.em.0.interrupts.tx_abs_timer: 0 dev.em.0.interrupts.tx_queue_empty: 0 dev.em.0.interrupts.tx_queue_min_thresh: 0 dev.em.0.interrupts.rx_desc_min_thresh: 0 dev.em.0.interrupts.rx_overrun: 1 0-zoo-# ifconfig em0 down 0-zoo-# ifconfig em0 up 0-zoo-# sysctl -a dev.em.0.debug=1 0-zoo-# Interface is RUNNING and ACTIVE em0: hw tdh = 1017, hw tdt = 1017 em0: hw rdh = 462, hw rdt = 461 em0: Tx Queue Status = 0 em0: TX descriptors avail = 1024 em0: Tx Descriptors avail failure = 50 em0: RX discarded packets = 0 em0: RX Next to Check = 462 em0: RX Next to Refresh = 461 -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/