dual port EM nic wedging under load

[Sepherosa Ziehau]

On 11/24/06, Mike Tancsa <mike at sentex.net> wrote:

[r2-dragonfly]# pciconf -lv
none0 at pci0:0:0: class=0x058000 card=0x815a1043 chip=0x005e10de
rev=0xa3 em0 at pci1:0:0:   class=0x020000 card=0x115e8086
chip=0x105e8086 rev=0x06 hdr=0x00
     vendor   = 'Intel Corporation'
     device   = 'PRO/1000 PT'
     class    = network
     subclass = ethernet
em1 at pci1:0:1:   class=0x020000 card=0x115e8086 chip=0x105e8086
rev=0x06 hdr=0x00
     vendor   = 'Intel Corporation'
     device   = 'PRO/1000 PT'
     class    = network
     subclass = ethernet
em stats posrt wedge
Can you post the output of em's debug_info sysctl?

em0: Adapter: 0xda491ec0
em0: Excessive collisions = 0
em0: Symbol errors = 0
em0: Sequence errors = 0
em0: Defer count = 0
em0: Missed Packets = 7202325
em0: Receive No Buffers = 1472
em0: Receive length errors = 0
em0: Receive errors = 0
em0: Crc errors = 0
em0: Alignment errors = 0
em0: Carrier extension errors = 0
em0: XON Rcvd = 0
em0: XON Xmtd = 5
em0: XOFF Rcvd = 0
em0: XOFF Xmtd = 7202331
em0: Good Packets Rcvd = 6560
em0: Good Packets Xmtd = 16
em1: Adapter: 0xda492540
em1: Excessive collisions = 0
em1: Symbol errors = 0
em1: Sequence errors = 0
em1: Defer count = 0
em1: Missed Packets = 0
em1: Receive No Buffers = 0
em1: Receive length errors = 0
em1: Receive errors = 0
em1: Crc errors = 0
em1: Alignment errors = 0
em1: Carrier extension errors = 0
em1: XON Rcvd = 0
em1: XON Xmtd = 0
em1: XOFF Rcvd = 0
em1: XOFF Xmtd = 0
em1: Good Packets Rcvd = 5
em1: Good Packets Xmtd = 5909
as seen leading up to and during the wedge
[r2-dragonfly]# netstat -ni 1
             input        (Total)           output
    packets  errs      bytes    packets  errs      bytes colls
          0     0          0          0     0          0     0
          1     0         60          0     0          0     0
          0     0          0          0     0          0     0
          1     0         60          0     0          0     0
          0     0          0          0     0          0     0
       5889 279836     419388       5888     0     376832     0
          0 380706          0          0     0          0     0
          0 379626          0          0     0          0     0
          1 382278         60          0     0          0     0


--------------------------------------------------------------------
Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at sentex.net
Providing Internet since 1994                    www.sentex.net
Cambridge, Ontario Canada                         www.sentex.net/mike



--
Live Free or Die