em0 with latest driver hangs again and again (without "Watchdogtimeout" message!)

[Arnaud Lacombe]

Hi Jack,

On Sun, Mar 6, 2011 at 2:48 PM, Jack Vogel <jfvogel at gmail.com> wrote:
> Missed packets just mean that some temporary resource shortage or error
> caused
> the packet to be dropped. I don't believe this is indicative of a problem,
> just let it
> keep running, 2 days is good but 2 weeks is better :)
>
> Thanks for testing it!
>
I still did not get any feedback from you about the patch I sent the
list about not ignoring the RX overrun interrupt triggered by the
card.

Thanks,
 - Arnaud

> Jack
>
>
> On Sun, Mar 6, 2011 at 4:37 AM, Özkan KIRIK <ozkan.kirik at gmail.com> wrote:
>>
>> Hello,
>>
>> I've been testing the em.7.2.2 driver as kld. The system is up about 2
>> days 6 hours.
>> System has 4 em interfaces, Throughput is about 200Mbit/s. System
>> didn't hang, but em2 has Input Errors.
>>
>> I saw that, dev.em.2.mac_stats.missed_packets is not zero? What could
>> be the problem?
>>
>> # uname -r
>> 8.2-RELEASE
>>
>> # sysctl dev.em.| grep miss
>> dev.em.0.mac_stats.missed_packets: 0
>> dev.em.1.mac_stats.missed_packets: 0
>> dev.em.2.mac_stats.missed_packets: 5886
>> dev.em.3.mac_stats.missed_packets: 0
>>
>> # netstat -nWI em2 | grep Link
>> Name      Mtu Network       Address              Ipkts Ierrs Idrop
>> Opkts Oerrs  Coll
>> em2      1500 <Link#4>      00:23:8b:89:e4:9e 267256324  5886     0
>> 273081628     0     0
>>
>> # sysctl dev.em.2.
>> dev.em.2.%desc: Intel(R) PRO/1000 Network Connection 7.2.2
>> dev.em.2.%driver: em
>> dev.em.2.%location: slot=0 function=0 handle=\_SB_.PCI0.P0P4.BR1E
>> dev.em.2.%pnpinfo: vendor=0x8086 device=0x105e subvendor=0x108e
>> subdevice=0x125e class=0x020000
>> dev.em.2.%parent: pci12
>> dev.em.2.nvm: -1
>> dev.em.2.debug: -1
>> dev.em.2.rx_int_delay: 0
>> dev.em.2.tx_int_delay: 66
>> dev.em.2.rx_abs_int_delay: 66
>> dev.em.2.tx_abs_int_delay: 66
>> dev.em.2.rx_processing_limit: 100
>> dev.em.2.flow_control: 3
>> dev.em.2.eee_control: 0
>> dev.em.2.link_irq: 0
>> dev.em.2.mbuf_alloc_fail: 0
>> dev.em.2.cluster_alloc_fail: 0
>> dev.em.2.dropped: 0
>> dev.em.2.tx_dma_fail: 0
>> dev.em.2.rx_overruns: 7
>> dev.em.2.watchdog_timeouts: 0
>> dev.em.2.device_control: 1075577409
>> dev.em.2.rx_control: 67141634
>> dev.em.2.fc_high_water: 30720
>> dev.em.2.fc_low_water: 29220
>> dev.em.2.queue0.txd_head: 3025
>> dev.em.2.queue0.txd_tail: 3025
>> dev.em.2.queue0.tx_irq: 0
>> dev.em.2.queue0.no_desc_avail: 0
>> dev.em.2.queue0.rxd_head: 1826
>> dev.em.2.queue0.rxd_tail: 1825
>> dev.em.2.queue0.rx_irq: 0
>> dev.em.2.mac_stats.excess_coll: 0
>> dev.em.2.mac_stats.single_coll: 0
>> dev.em.2.mac_stats.multiple_coll: 0
>> dev.em.2.mac_stats.late_coll: 0
>> dev.em.2.mac_stats.collision_count: 0
>> dev.em.2.mac_stats.symbol_errors: 0
>> dev.em.2.mac_stats.sequence_errors: 0
>> dev.em.2.mac_stats.defer_count: 0
>> dev.em.2.mac_stats.missed_packets: 5886
>> dev.em.2.mac_stats.recv_no_buff: 3407
>> dev.em.2.mac_stats.recv_undersize: 0
>> dev.em.2.mac_stats.recv_fragmented: 0
>> dev.em.2.mac_stats.recv_oversize: 0
>> dev.em.2.mac_stats.recv_jabber: 0
>> dev.em.2.mac_stats.recv_errs: 0
>> dev.em.2.mac_stats.crc_errs: 0
>> dev.em.2.mac_stats.alignment_errs: 0
>> dev.em.2.mac_stats.coll_ext_errs: 0
>> dev.em.2.mac_stats.xon_recvd: 0
>> dev.em.2.mac_stats.xon_txd: 0
>> dev.em.2.mac_stats.xoff_recvd: 0
>> dev.em.2.mac_stats.xoff_txd: 0
>> dev.em.2.mac_stats.total_pkts_recvd: 265358324
>> dev.em.2.mac_stats.good_pkts_recvd: 265352438
>> dev.em.2.mac_stats.bcast_pkts_recvd: 701728
>> dev.em.2.mac_stats.mcast_pkts_recvd: 4076
>> dev.em.2.mac_stats.rx_frames_64: 0
>> dev.em.2.mac_stats.rx_frames_65_127: 140801982
>> dev.em.2.mac_stats.rx_frames_128_255: 3553397
>> dev.em.2.mac_stats.rx_frames_256_511: 3418754
>> dev.em.2.mac_stats.rx_frames_512_1023: 8096866
>> dev.em.2.mac_stats.rx_frames_1024_1522: 109481439
>> dev.em.2.mac_stats.good_octets_recvd: 177455051448
>> dev.em.2.mac_stats.good_octets_txd: 274861571704
>> dev.em.2.mac_stats.total_pkts_txd: 270439410
>> dev.em.2.mac_stats.good_pkts_txd: 270439410
>> dev.em.2.mac_stats.bcast_pkts_txd: 194927
>> dev.em.2.mac_stats.mcast_pkts_txd: 48
>> dev.em.2.mac_stats.tx_frames_64: 23050855
>> dev.em.2.mac_stats.tx_frames_65_127: 54156414
>> dev.em.2.mac_stats.tx_frames_128_255: 4299280
>> dev.em.2.mac_stats.tx_frames_256_511: 7837146
>> dev.em.2.mac_stats.tx_frames_512_1023: 8272014
>> dev.em.2.mac_stats.tx_frames_1024_1522: 172823701
>> dev.em.2.mac_stats.tso_txd: 0
>> dev.em.2.mac_stats.tso_ctx_fail: 0
>> dev.em.2.interrupts.asserts: 283674059
>> dev.em.2.interrupts.rx_pkt_timer: 33585
>> dev.em.2.interrupts.rx_abs_timer: 0
>> dev.em.2.interrupts.tx_pkt_timer: 11022
>> dev.em.2.interrupts.tx_abs_timer: 22449
>> dev.em.2.interrupts.tx_queue_empty: 0
>> dev.em.2.interrupts.tx_queue_min_thresh: 0
>> dev.em.2.interrupts.rx_desc_min_thresh: 0
>> dev.em.2.interrupts.rx_overrun: 0
>>
>> Regards,
>> Ozkan KIRIK
>
>