em network issues

[Kip Macy]

On Wed, 18 Oct 2006, Jack Vogel wrote:

> On 10/18/06, Kip Macy <kip.macy at gmail.com> wrote:
> > I have a Sun T2000 that I generally run with the em driver from as of
> > July in order to avoid watchdog timeouts. One trivial scenario that
> > reproduces the problem with 100% consistency is running the ghc
> > configure script (a 20kloc shell script) over NFS. As the T2000
> > doesn't exactly represent "typical" PC hardware it may not be the most
> > desirable test platform. Nonetheless, let me know if you're
> > interested.
> > Thanks for looking into this issue.
> >
> >     -Kip
>
> I'm a bit confused from the way you worded this, do you have watchdogs
> with em, or you use em to avoid them?

I have watchdogs with the current (post vendor update) em driver, but
not with an older (pre vendor update) version of it.

>
> If you have problems when running NFS then thats a clue, is it TCP or
> UDP based NFS? I am interested, give me details about the setup please.
Its UDP:
192.168.1.100:/usr/flatstor/freebsd/7.x/sparc64 /      nfs     bg,intr,rw 0 0
192.168.1.100:/usr/flatstor/shared              /shared      nfs     bg,intr,rw,nfsv3 0 0

Running ./configure --help in /shared/ghc-6.4.2/ triggers it 100%
consistently.

>
> I have one of the engineers in our test organization trying to repro symptoms
> on a system installed with BETA2, it has shared interrupts between em and
> usb. Any additional stuff he could run would be helpful.
>

Let me know what else you need.


%ifconfig -a
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=18b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,TSO4>
        inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255
        ether 00:03:ba:d9:20:ae
        media: Ethernet autoselect (1000baseTX <full-duplex>)
        status: active
em1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        options=18b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,TSO4>
        ether 00:03:ba:d9:20:af
        media: Ethernet autoselect
        status: no carrier
em2: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        options=18b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,TSO4>
        ether 00:03:ba:d9:20:b0
        media: Ethernet autoselect
        status: no carrier
em3: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        options=18b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWCSUM,TSO4>
        ether 00:03:ba:d9:20:b1
        media: Ethernet autoselect
        status: no carrier
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet6 ::1 prefixlen 128
        inet 127.0.0.1 netmask 0xff000000
%pciconf -l
pcib1 at pci2:0:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib2 at pci3:1:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib3 at pci3:2:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib4 at pci3:8:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib5 at pci3:9:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
em0 at pci4:0:0:   class=0x020000 card=0x105e108e chip=0x105e8086 rev=0x06 hdr=0x00
em1 at pci4:0:1:   class=0x020000 card=0x105e108e chip=0x105e8086 rev=0x06 hdr=0x00
pcib7 at pci2:0:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib8 at pci3:1:0: class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib11 at pci3:2:0:        class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib12 at pci3:8:0:        class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib13 at pci3:9:0:        class=0x060400 card=0x00000040 chip=0x853210b5 rev=0xaa hdr=0x01
pcib9 at pci4:0:0: class=0x060400 card=0x00000044 chip=0x03408086 rev=0x09 hdr=0x01
pcib10 at pci4:0:2:        class=0x060400 card=0x00000044 chip=0x03418086 rev=0x09 hdr=0x01
none0 at pci5:2:0: class=0x060100 card=0x153310b9 chip=0x153310b9 rev=0x00 hdr=0x00
none1 at pci5:5:0: class=0x0c0310 card=0x00000000 chip=0x523710b9 rev=0x03 hdr=0x00
none2 at pci5:6:0: class=0x0c0310 card=0x00000000 chip=0x523710b9 rev=0x03 hdr=0x00
none3 at pci5:8:0: class=0x0101ff card=0x00000000 chip=0x522910b9 rev=0xc4 hdr=0x00
none4 at pci6:1:0: class=0x0c0400 card=0x01001077 chip=0x23121077 rev=0x02 hdr=0x00
none5 at pci6:2:0: class=0x010000 card=0x30f01000 chip=0x00501000 rev=0x02 hdr=0x00
em2 at pci7:0:0:   class=0x020000 card=0x105e108e chip=0x105e8086 rev=0x06 hdr=0x00
em3 at pci7:0:1:   class=0x020000 card=0x105e108e chip=0x105e8086 rev=0x06 hdr=0x00
%vmstat -i
interrupt                          total       rate
vec1941: em0                       18533         91
Total                              18533         91