Nate Nielsen wrote:
I have Atheros 5213 based 802.11a cards. When switching 'media' (ie:
rates or speed) I often get the following error multiple times on my
console:
ath0: hardware error; resetting
ath0: hardware error; resetting
It's all fine and good when it's just a few times, but in many cases it
enters an endless loop, bringing the wireless link to it's knees. The
above line is written to the console over and over again,
I'm running FreeBSD 6.0 on two boxes sitting next to each other. The
wireless NICs are setup real simple (in rc.conf) with:
ifconfig_ath0="inet 10.28.2.18/30 ssid tel2 channel 52 \
mediaopt adhoc"
To duplicate run the following several times:
# ifconfig ath0 media auto
# ifconfig ath0 media OFDM/6Mbps
A work around is simply to punch the settings into rc.conf and reboot.
Seems to work fine here with CURRENT; I just typed the exact commands
from above. "hardware errors" are typically dma errors. If you're
operating in adhoc mode the h/w is periodically sending beacons and if
that tx descriptor gets setup wrong it can cause a dma error. Marking
the interface down will shutdown all dma so if you're seeing these
repeat try doing that. Perhaps there is a race in changing state but I
just did a tight loop where I switched media and saw nothing bad happen.
I can try 6.0 later. FWIW 5213 is kinda nebulous; the only true info
are the mac+phy revs from dmesg|grep ath.
Sam
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
