> > Interesting. Doesn't your AP support short preambles? That'd be the only > > reason for anything going wrong here to actually break your connection. > > hmm. > > My AP works with short preambles. When this situation occurs, whatever > happens causes a switch from short to long. The change in the preamble is > likely a symptom of whatever is causing the breakage. Hmm, ok. Not sure, maybe a driver problem? > >> Do you have any suggestions on what should be logged in > >> ieee80211_handle_protect_preamb or any other mac80211 routine so that I can > >> isolate the problem? I use NM to control the connection and authentication to > >> a WPA-PSK TKIP network. > > > > Well I guess you should log what state it changes to (maybe even in b43) > > and at the same time monitor with say wireshark on a monitor interface > > to see what the AP is announcing. Not sure really, I have a hard time > > imagining this being the problem. > > I'll try for a stack dump when the short => long transition occurs. Perhaps > that will suggest something to dump. I'll also set up a monitor interface. > Unfortunately, it is an unlikely event, but I have a lot of disk space. You can filter and save only probe responses and beacons from that particular AP. johannes
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