Hello, First of all I'm fairly new to this list (in all, this is my first message), so please be gentle.. I promise I will try not to waste your precious time.
I believe we have a deadlock in d80211.
I have it too. But I'm using iwl3945 driver, in-kernel mac80211, and a gentoo kernel (basically a patched vanilla-2.6.22.1). My machine is a x86_64 core 2 duo.
The following triggers it on my 2way SMT machine with preempt. modprobe bcm43xx-d80211 add sta0 ifconfig sta0 up start wpa_supplicant on the interface rmmod bcm43xx-d80211 After that rmmod hangs spinning and wpa_supplicant stays in D state. If I first kill wpa_supplicant and then rmmod the module, it does not deadlock.
I can trigger this way: modprobe iwl3945 ifconfig wlan0 up start wpa_supplicant do some wpa_supplicant work (for instance issue a scan) stop wpa_supplicant Then it will deadlock (that is, wpa_supplicant will refuse to be killed). The same thing happens if I try to modprobe the module out (modprobe will "hang spinning" as you said). I have to ultimately hard-shutdown my machine to bring it back to normal.
Below is sysrq-t output. It looks like it's related to rtnl_mutex. (...)
I'm sorry for my inexperience, but I have no idea on which more data to provide you. I will gladly help running any tests you would find appropriate.
-- Greetings Michael.
Cheers, Renato Caldas - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
