kern/144689: [re] TCP transfer corruption using if_re

[Steven Noonan]

On Fri, Mar 12, 2010 at 9:54 AM,  <yongari at freebsd.org> wrote:
> Synopsis: [re] TCP transfer corruption using if_re
>
> State-Changed-From-To: open->feedback
> State-Changed-By: yongari
> State-Changed-When: Fri Mar 12 17:53:37 UTC 2010
> State-Changed-Why:
> This looks like Rx checksum offloading issue. Would you try
> disabling Rx checksum offloading and test it again?
> #ifconfig re0 -rxcsum
> Also show me dmesg output(re(4) related part).
>
>
> Responsible-Changed-From-To: freebsd-net->yongari
> Responsible-Changed-By: yongari
> Responsible-Changed-When: Fri Mar 12 17:53:37 UTC 2010
> Responsible-Changed-Why:
> Mine.
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=144689
>

Hmm. Disabling Rx checksum offloading helped for one clone process,
but then this showed up in dmesg during my second test (it seems to be
doing this regularly for some reason):
re0: link state changed to DOWN
re0: link state changed to UP

And no, the cable isn't loose or something. It just decides to take
the interface down and put it back up.

Here's the rest of 'dmesg | grep re0':

firewire0: <IEEE1394(FireWire) bus> on fwohci0
dcons_crom0: <dcons configuration ROM> on firewire0
fwe0: <Ethernet over FireWire> on firewire0
fwip0: <IP over FireWire> on firewire0
firewire0: 1 nodes, maxhop <= 0 cable IRM irm(0)  (me)
firewire0: bus manager 0
re0: <RealTek 8169/8169S/8169SB(L)/8110S/8110SB(L) Gigabit Ethernet>
port 0x1200-0x12ff mem 0x88000000-0x880001ff irq 18 at device 0.0 on
cardbus0
re0: Chip rev. 0x10000000
re0: MAC rev. 0x00000000
miibus1: <MII bus> on re0
re0: Ethernet address: 00:18:4d:6e:c0:29
re0: [FILTER]
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: detached
re0: <RealTek 8169/8169S/8169SB(L)/8110S/8110SB(L) Gigabit Ethernet>
port 0x1200-0x12ff mem 0x88000000-0x880001ff irq 18 at device 0.0 on
cardbus0
re0: Chip rev. 0x10000000
re0: MAC rev. 0x00000000
miibus1: <MII bus> on re0
re0: Ethernet address: 00:18:4d:6e:c0:29
re0: [FILTER]
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: PHY read failed
re0: link state changed to DOWN
re0: link state changed to UP
re0: PHY read failed

- Steven