On Mon June 21 2010 16:23:06 Jaroslav Fojtik wrote: > Dear Bruno, > > > hi jara! > > > > are you sure it has to do with the upgrade from > > compat-wireless-2010-06-13 to compat-wireless-2010-06-18? i don't see > > any relevant differences in the code between these two versions... > > Sorry, it might be compat-wireless-2010-05-30. that would make more sense. there are changes in noise floor calibration and in antenna diversity setup between these two (2010-05-30 and 2010-06-18). either one may be the reason... > I have tested only 3 versions. > > Anyway, I have observed "false" signal drop even for client stations. > > You could see that purple line als dropped from -61 to -71 without any > reason: http://78.108.103.11:11080/cgi-bin/klienti_year.cgi > > > it might be interresting to see what results you get from noise > > calibration. you can enable calibration debugging with "echo calib > > > /sys/kernel/debug/ath5k/phy0/debug" > > The directory /sys/kernel/debug is empty. > It looks that I have to recompile kernel. Or do you know any option to > pass to kernel to allow this feature? maybe you need to: mount -t debugfs debugfs /sys/kernel/debug ? also you need to compile ath5k with debugging enabled. can you tell us which chipset you are using (output of dmesg |grep "ath5.*chip")? also it would be interesting to know how you generate your graphs? bruno -- 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