https://bugzilla.novell.com/show_bug.cgi?id=725267 https://bugzilla.novell.com/show_bug.cgi?id=725267#c2 David Sterba changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dsterba@suse.com --- Comment #2 from David Sterba 2011-10-20 15:02:08 CEST --- Out of curiosity I looked at the oops and it seems that the driver really tries to divide by zero potentailly at several places: net/mac80211/rc80211_minstrel_ht.c: 229 minstrel_calc_rate_ewma(mp, mr); 230 minstrel_ht_calc_tp(mp, mi, group, i); net/mac80211/rc80211_minstrel_ht.c: 158 static void 159 minstrel_ht_calc_tp(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, 160 int group, int rate) 161 { 162 struct minstrel_rate_stats *mr; 163 unsigned int usecs; 164 165 mr = &mi->groups[group].rates[rate]; 166 167 if (mr->probability < MINSTREL_FRAC(1, 10)) { 168 mr->cur_tp = 0; 169 return; 170 } 171 172 usecs = mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 173 usecs += minstrel_mcs_groups[group].duration[rate]; 174 mr->cur_tp = MINSTREL_TRUNC((1000000 / usecs) * mr->probability); 175 } net/mac80211/rc80211_minstrel_ht.h: 22 #define MINSTREL_TRUNC(val) ((val) >> MINSTREL_SCALE) and minstrel_calc_rate_ewma(): 137 mr->cur_prob = MINSTREL_FRAC(mr->success, mr->attempts); 21 #define MINSTREL_FRAC(val, div) (((val) << MINSTREL_SCALE) / div) [upstream code] -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=725267 https://bugzilla.novell.com/show_bug.cgi?id=725267#c3 Jiri Bohac changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WONTFIX --- Comment #3 from Jiri Bohac 2014-03-08 00:40:37 CET --- openSUSE 12.1 is not supported any longer. Please reopen if you see this happen on 13.1. E.g. upstream commit ed97a13c540eb8fdbb6250eaa6471a4263204af8 in v3.10 might help this. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.