I will be willing to test any diffs relating to this. I have some soekris with Ral cards which i intended to use in hostap mode.
Cheers On Jan 16, 2012 12:13 PM, "Steven Chamberlain" <[email protected]> wrote: > On 16/01/12 09:47, Sebastian Reitenbach wrote: > > this is a followup on the misc@ "problem with ral in hopstap mode on > -current" thread. > > Thank you! I wasn't subscribed to that list but I mentioned this on > bugs@ on 2011-12-10, "rum: multiple issues". > > > > tcpdump -n -i ral0 -y IEEE802_11_RADIO -vvv > > ... > > 17:24:49.225241 802.11: probe request, <radiotap v0, tsf 366153760136, > 1Mbit/s, chan 1, 11g, antenna 1, signal 65dB> > > 17:24:49.225311 802.11: deauthentication, authentication expired, > <radiotap v0, 1Mbit/s, chan 1, 11g, antenna 1> > > 17:24:49.225347 802.11: deauthentication, authentication expired, > <radiotap v0, 1Mbit/s, chan 1, 11g, antenna 1> > > Same thing I was seeing! I think the flood of deauths from your AP > implies the node cache is full, and for some reason it tries but fails > to flush anything. At that point no station can (re)associate. > > > > So adding this rc=1 on Friday evening, now over the whole weekend, up to > this morning, my wireless is working stable now, > > as it was before with the 4.2. > > I don't understand how setting 'rc = 1' for beacons/proberesps helped > (non-zero means "yes, needs an rxnode"); I would have expected that to > fill the node cache more quickly, and so trigger the bug more often. > Figuring this out might be key to understanding some underlying problem... > > > > This should prevent entries of the form: > > nwid "" chan 3 bssid 00:01:02:03:04:05 0dB 54M > > in "ifconfig if0 scan" output, like reported by Rivo Nurges. > > Have you seen anything like that yourself yet? > > > I found that raising IEEE80211_CACHE_SIZE from its default of 100 in > ieee80211_node.h reduces how often the problem occurs, but is not in any > way a sensible fix. When debugging the issue it would probably help to > lower that value drastically so it is easier to trigger it. > > Regards, > -- > Steven Chamberlain > [email protected]
