debug logs

Here are two dmesg outputs on each kernel after I do  modprobe ath9k
debug=0xffffffff and iwlist wlan0 scan | grep SSID

kernel-2.6.36.4 is good and returns  ~15 APs and associates to my AP
htp://lockie.ca/test/dmesg_good.txt.bz2

but kernel-2.6.38.5 is bad and returns ~0-3 APs and does not associate
to my AP
http://lockie.ca/test/dmesg_bad.txt.bz

Maybe someone can see something.