Date: Sun, 26 Sep 2010 19:43:03 -0400 From: Mike Tancsa <mike@sentex.net> To: Jack Vogel <jfvogel@gmail.com> Cc: pyunyh@gmail.com, freebsd-stable@freebsd.org Subject: Re: RELENG_7 em problems (and RELENG_8) Message-ID: <201009262343.o8QNhgDG012676@lava.sentex.ca> In-Reply-To: <AANLkTinxLScVxQ2ib%2BcLXEBGTATAU36%2BOKr7%2B5SQXE89@mail.gmail.c om> References: <201006102031.o5AKVCH2016467@lava.sentex.ca> <201007021739.o62HdMOU092319@lava.sentex.ca> <20100702193654.GD10862@michelle.cdnetworks.com> <201008162107.o7GL76pA080191@lava.sentex.ca> <20100817185208.GA6482@michelle.cdnetworks.com> <201008171955.o7HJt67T087902@lava.sentex.ca> <20100817200020.GE6482@michelle.cdnetworks.com> <201009141759.o8EHxcZ0013539@lava.sentex.ca> <AANLkTimiTmA1HHeWmGm1MAFf-H=OqC17vwZvFWpgcHCZ@mail.gmail.com> <201009262157.o8QLvR0L012171@lava.sentex.ca> <AANLkTinxLScVxQ2ib%2BcLXEBGTATAU36%2BOKr7%2B5SQXE89@mail.gmail.com>
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At 06:19 PM 9/26/2010, Jack Vogel wrote:
>Your em1 is using MSI not MSIX and thus can't have multiple queues. I'm
>not sure whats broken from what you show here. I will try to get the new
>driver out shortly for you to try.
With this particular NIC, it will wedge under high load. I tried 2
different motherboards and chipsets the same behaviour.
---Mike
>Jack
>
>
>On Sun, Sep 26, 2010 at 2:57 PM, Mike Tancsa
><<mailto:mike@sentex.net>mike@sentex.net> wrote:
>At 06:36 PM 9/24/2010, Jack Vogel wrote:
>There is a new revision of the em driver coming next week, its going thru some
>stress pounding over the weekend, if no issues show up I'll put it into HEAD.
>
>Yongari's changes in TX context handling which effects checksum and tso
>are added. I've also decided that multiple queues in 82574 just are a source
>of problems without a lot of benefit, so it still uses MSIX but with
>only 3 vectors,
>meaning it seperates TX and RX but has a single queue.
>
>
>Thanks, looking forward to trying it out! With respect to the
>multiple queues, I thought the driver already used just the one on
>RELENG_8 ? If not, is there a way to force the existing driver to
>use just the one queue ?
>
>On the box that has the NIC locking up, it shows
>
>em1@pci0:9:0:0: class=0x020000 card=0x34ec8086 chip=0x10d38086
>rev=0x00 hdr=0x00
>
> vendor = 'Intel Corporation'
> device = 'Intel 82574L Gigabit Ethernet Controller (82574L)'
> class = network
> subclass = ethernet
> cap 01[c8] = powerspec 2 supports D0 D3 current D0
> cap 05[d0] = MSI supports 1 message, 64 bit enabled with 1 message
> cap 10[e0] = PCI-Express 1 endpoint max data 128(256) link x1(x1)
>
>and
>
>vmstat -i shows
>
>irq256: em0 5129063 353
>irq257: em1 531251 36
>
>in a wedged state, stats look like
>
>dev.em.1.%desc: Intel(R) PRO/1000 Network Connection 7.0.5
>dev.em.1.%driver: em
>dev.em.1.%location: slot=0 function=0 handle=\_SB_.PCI0.PEX4.HART
>dev.em.1.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x8086
>subdevice=0x34ec class=0x020000
>dev.em.1.%parent: pci9
>dev.em.1.nvm: -1
>dev.em.1.rx_int_delay: 0
>dev.em.1.tx_int_delay: 66
>dev.em.1.rx_abs_int_delay: 66
>dev.em.1.tx_abs_int_delay: 66
>dev.em.1.rx_processing_limit: 100
>dev.em.1.link_irq: 0
>dev.em.1.mbuf_alloc_fail: 0
>dev.em.1.cluster_alloc_fail: 0
>dev.em.1.dropped: 0
>dev.em.1.tx_dma_fail: 0
>dev.em.1.fc_high_water: 18432
>dev.em.1.fc_low_water: 16932
>dev.em.1.mac_stats.excess_coll: 0
>dev.em.1.mac_stats.symbol_errors: 0
>dev.em.1.mac_stats.sequence_errors: 0
>dev.em.1.mac_stats.defer_count: 0
>dev.em.1.mac_stats.missed_packets: 41522
>dev.em.1.mac_stats.recv_no_buff: 19
>dev.em.1.mac_stats.recv_errs: 0
>dev.em.1.mac_stats.crc_errs: 0
>dev.em.1.mac_stats.alignment_errs: 0
>dev.em.1.mac_stats.coll_ext_errs: 0
>dev.em.1.mac_stats.rx_overruns: 41398
>dev.em.1.mac_stats.watchdog_timeouts: 0
>dev.em.1.mac_stats.xon_recvd: 0
>dev.em.1.mac_stats.xon_txd: 0
>dev.em.1.mac_stats.xoff_recvd: 0
>dev.em.1.mac_stats.xoff_txd: 0
>dev.em.1.mac_stats.total_pkts_recvd: 95229129
>dev.em.1.mac_stats.good_pkts_recvd: 95187607
>dev.em.1.mac_stats.bcast_pkts_recvd: 79244
>dev.em.1.mac_stats.mcast_pkts_recvd: 0
>dev.em.1.mac_stats.rx_frames_64: 93680
>dev.em.1.mac_stats.rx_frames_65_127: 1516349
>dev.em.1.mac_stats.rx_frames_128_255: 4464941
>dev.em.1.mac_stats.rx_frames_256_511: 4024
>dev.em.1.mac_stats.rx_frames_512_1023: 2096067
>dev.em.1.mac_stats.rx_frames_1024_1522: 87012546
>dev.em.1.mac_stats.good_octets_recvd: 0
>dev.em.1.mac_stats.good_octest_txd: 0
>dev.em.1.mac_stats.total_pkts_txd: 66775098
>dev.em.1.mac_stats.good_pkts_txd: 66775098
>dev.em.1.mac_stats.bcast_pkts_txd: 509
>dev.em.1.mac_stats.mcast_pkts_txd: 7
>dev.em.1.mac_stats.tx_frames_64: 48038472
>dev.em.1.mac_stats.tx_frames_65_127: 13402833
>dev.em.1.mac_stats.tx_frames_128_255: 5324413
>dev.em.1.mac_stats.tx_frames_256_511: 957
>dev.em.1.mac_stats.tx_frames_512_1023: 319
>dev.em.1.mac_stats.tx_frames_1024_1522: 8104
>dev.em.1.mac_stats.tso_txd: 1069
>dev.em.1.mac_stats.tso_ctx_fail: 0
>dev.em.1.interrupts.asserts: 0
>dev.em.1.interrupts.rx_pkt_timer: 0
>dev.em.1.interrupts.rx_abs_timer: 0
>dev.em.1.interrupts.tx_pkt_timer: 0
>dev.em.1.interrupts.tx_abs_timer: 0
>dev.em.1.interrupts.tx_queue_empty: 0
>dev.em.1.interrupts.tx_queue_min_thresh: 0
>dev.em.1.interrupts.rx_desc_min_thresh: 0
>dev.em.1.interrupts.rx_overrun: 0
>dev.em.1.host.breaker_tx_pkt: 0
>dev.em.1.host.host_tx_pkt_discard: 0
>dev.em.1.host.rx_pkt: 0
>dev.em.1.host.breaker_rx_pkts: 0
>dev.em.1.host.breaker_rx_pkt_drop: 0
>dev.em.1.host.tx_good_pkt: 0
>dev.em.1.host.breaker_tx_pkt_drop: 0
>dev.em.1.host.rx_good_bytes: 0
>dev.em.1.host.tx_good_bytes: 0
>dev.em.1.host.length_errors: 0
>dev.em.1.host.serdes_violation_pkt: 0
>dev.em.1.host.header_redir_missed: 0
>
>ifconfig down/up just panics or locks up the box when its in this
>state. I also have IPMI enabled on this nic, but it shows the same
>issue with it disabled.
>
> ---Mike
>
>
>
>--------------------------------------------------------------------
>Mike Tancsa, tel +1 519 651 3400
>Sentex
>Communications,
><mailto:mike@sentex.net>mike@sentex.net
>Providing Internet since
>1994 <http://www.sentex.net>www.sentex.net
>Cambridge, Ontario
>Canada <http://www.sentex.net/mike>www.sentex.net/mike
>
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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