Deauthentications with p54usb

Quoted 14 lines · [email protected] wrote:

Ahh, wait... screw up: I failed to explain the difference between:
vs.
- hibernation (soft rfkill that went in with "[PATCH] p54: implement rfkill") In this mode: the device's radio is completely shutdown... so it only makes sense to enter this mode when there's really nothing to do (=> the device is not scanning or associating/associated)

mac80211 will printk (with CONFIG_MAC80211_VERBOSE_DEBUG set) whenever the IEEE80211_CONF_IDLE changes. e.g:
phy0: device no longer idle - REASON
or:
phy0: device now idle
in the kernel logs.

Quoted 6 lines

Quoted 2 lines

Turning off CONFIG_CFG80211_DEFAULT_PS stopped the messages, thus it certainly looks like a power saving event.

so hibernation (rfkill) is fine, just powersave is playing tricks... weirdly, intel disabled ps in their driver _again_ not too long ago, maybe a coincident, maybe not... do you think you can send me a kismet/wireshark/airodump dump whenever the AP kicks the device?

We don't know that hibernation is OK. I just never make my machine hibernate (suspend to disk) or sleep (suspend to RAM).
The last time I tried it had one or more drivers that would not cooperate, and I have not tried recently.

Quoted 7 lines

BTW: you can set different PS modes with the old iwconfig utility:
iwconfig wlanX power off <-- disables PS
(just like turning off the CONFIG_CFG80211_DEFAULT_PS option)

iwconfig wlanX power timeout 0 <--- most aggressive PS setting, (only uses PS-POLL to retrieve data).

Quoted 2 lines

AFAIK the current default is just "1", maybe your link would be totally reliable with a more _relaxed_ 200, 500 setting...

I'll re-enable CONFIG_CFG80211_DEFAULT_PS and try a more relaxed value for the power timeout. In any case, with it disabled, there have been no deauthentications nor disassociations. The link is rock solid.