On Wed, 2009-05-06 at 16:12 -0400, Pavel Roskin wrote: > > > > If I scan by "iw dev wlan0 scan" while sending data through the > > > > interface, I get a BUG in net/mac80211/tx.c: > > > > > > Agreed... Also I think the same thing happens for rx for ath5k, > > > explaining the 'unknown rate index' warnings (sc->curband changes > > > during scan but we process a beacon from 2ghz band, that one at > > > least just needs some synchronization in the driver). > > > > Ah, that could be -- I sure am tired of reading bug reports about > > that... > > I've bisected it. The problem is introduced by the commit > 2038ccfbb5f7fc7d8bca26bf53bdd6c7778136ff: > > Author: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> > AuthorDate: Wed Apr 29 12:26:17 2009 +0200 > Commit: John W. Linville <linville@xxxxxxxxxxxxx> > CommitDate: Thu Apr 30 15:06:34 2009 -0400 > > mac80211: tell driver when idle Huh? That's confusing. Also, you say you get a BUG but point out a WARN_ON_ONCE, was that an oversight or does something crash there? OTOH, I can see one thing happening -- it would access scan_channel. Patch should fix that, does it help? johannes --- wireless-testing.orig/net/mac80211/iface.c 2009-05-06 22:25:45.000000000 +0200 +++ wireless-testing/net/mac80211/iface.c 2009-05-06 22:25:53.000000000 +0200 @@ -964,5 +964,6 @@ void ieee80211_recalc_idle(struct ieee80 mutex_lock(&local->iflist_mtx); chg = __ieee80211_recalc_idle(local); mutex_unlock(&local->iflist_mtx); - ieee80211_hw_config(local, chg); + if (chg) + ieee80211_hw_config(local, chg); } -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
