[Bug 193152] mlxen driver problem with MT26448 interface

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193152

--- Comment #2 from gnoma <gnoma_86 at gbg.bg> ---
Hello,

What I found out is that even if I ping my own IP, I still got package lost:

root at sentinel:~ # ifconfig | grep 10.0. |grep inet
    inet 10.0.80.1 netmask 0xffffff00 broadcast 10.0.80.255 
root at sentinel:~ # 
root at sentinel:~ # ping -f 10.0.80.1
PING 10.0.80.1 (10.0.80.1): 56 data bytes
.................................................................................................................................................................................................................................................^C
--- 10.0.80.1 ping statistics ---
838 packets transmitted, 597 packets received, 28.8% packet loss
round-trip min/avg/max/stddev = 0.021/0.028/0.058/0.006 ms
root at sentinel:~ # 

this is really strange.

I saw that with PF firewall, it's recommended to use maximum 1GB interface.
However:

root at sentinel:~ # /etc/rc.d/pf stop
Disabling pf.
root at sentinel:~ # ping -f 10.0.80.1
PING 10.0.80.1 (10.0.80.1): 56 data bytes
...........................................................................................................................................................................................................................................^C
--- 10.0.80.1 ping statistics ---
832 packets transmitted, 597 packets received, 28.2% packet loss
round-trip min/avg/max/stddev = 0.028/0.041/0.109/0.009 ms
root at sentinel:~ #

Even without PF I am still losing packages to my own interface.

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