iwlwifi 3945: secondary interface disallows association

Hi folks -

I have pretty decent functionality on the 3945abg laptop with the Fedora development kernel version of iwlwifi and WPA via wpa_supplicant. Connections can stay up over a couple of days or more when I am staying close to the AP.

However if I perform this action:

echo -n mon0 > /sys/class/ieee80211/phy0/add_iface

I immediately lose association and cannot reacquire it until I remove the iwl3945 module and insert again. I don't have to do anything with the new interface, just create it. I tried setting the channel and mode of it, but that didn't help with reacquiring an association.

In contrast I can bring up other virtual interfaces okay on, eg, zd1211 without losing an existing association to the same WPA network.

-Andy

I don't appear to have the same problem with:
-latest version of iwlwifi (0.0.35)
- gentoo-sources-2.6.20 kernel (patched with a relatively old mac80211 package)

I believe fedora has 0.0.24 of iwlwifi embedded?
So the problem might have been fixed already.

Writing this email, after executing your command, when associated on a wpa2 network.

Ian.

I don't know, this was yesterday's latest development kernel 2.6.22-0.5.rc7.git2.fc8 FWIW.

You're right Ian, I tested current wireless-dev git iwl3945 on another laptop and it works correctly, I can even put the secondary interface into Monitor mode and see stuff flying around and still ping things frmo the default associated interface. Great!

-Andy