On Mon, 2008-11-24 at 14:36 +0100, Stefan Steuerwald wrote: > I see "dropped TX filtered frame" messages in the syslog when at the > same time I see wireless packet sequences as described below. Please > see the attached logs. Ah, very good, thank you. > Nov 24 13:49:11 alix kernel: wlan0: STA 00:22:41:91:8e:96 aid 1 send > PS frame since STA not sleeping anymore > Nov 24 13:49:11 alix kernel: phy0: dropped TX filtered frame, > queue_len=0 PS=0 @135594 That confirms my suspicion that something is going on with p54. Christian, can you review the comment in net/mac80211/main.c around line 400, the one about races, wrt. p54? > which may explain why I don't see any data packet on the air. Also > attached is hostapd log. Indeed. > Another thing is the fact that we see 24(!) consecutive beacons with > TIM bit set until the iPod finally wakes up. It seems to be lying to > the AP, as it advertises a listen_interval of only 10. May this cause > the above? That is another issue, yes, but probably not causing it, we'd be seeing "expired buffered frame" messages if it was, I think. johannes
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