On Tue, Sep 8, 2009 at 1:53 PM, Philip Prindeville <philipp_subx@xxxxxxxxxxxxxxxxxxxxx> wrote: > I pulled compat-wireless from GIT last night (or about 1:30am mountain, > really) and rebuilt a 2.6.27.29 kernel. > > I'm seeing a lot of: > > Sep 8 11:44:09 pbx user.err kernel: ath5k phy0: no further txbuf available, dropping packet > > > one every 10 seconds, in fact. This is with an Engenius EMP-8062+ card: Ok, the timing information is useful. This is probably something (beacon sending?) racing with the periodic calibration, which temporarily stops all of the tx traffic and frees the tx buffers, then starts it all up again. In short, apart from the logging this shouldn't cause any problems, but we should probably disable the beacon tasklet during this time. If this only appeared all of a sudden in recent compat snapshots, it would be useful to know the last one that worked normally. > I'll probably have to reboot regularly, since this is on an embedded box > with limited CF filesystem, and I can't overflow my /var partition... Ouch. For now, just take it out or demote it to debug. As for the original problem, I don't know offhand why a large download would trigger a cascade of these errors. The best way to track it down is to try to come up with a case that reproduces it and sprinkle printks throughout the driver, especially when we free and allocate the tx buffers. -- Bob Copeland %% www.bobcopeland.com -- 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
