Similar to Bug 205579.
However I am using the dbus interface to create the serial port profile
on the server, using similar coding described at
https://ukbaz.github.io/howto/AppInventor.html
The connection works well but the disconnect ups the cpu usage (~100%)
for the thread running the SPP code. Subsequent connects, data
transfers and disconnects still work over the bluetooth link. The
initial connection before disconnect runs with < 3% cpu usage.
I tried closing down that SPP thread and restarting it, but the cpu load
stays high. I have also disabled the bluetooth on the client and
re-enabled it. CPU usage stays high. Only restarting the bluetooth
subsystem on the server end, resets the cpu usage.
The test system is bluez 5.52 on fedora desktop. Client is Bluetooth
serial app on android.
Running the server on raspberrypi zero results is similar behaviour. It
running bluez v5.50.
Any suggestions? Need server operating on raspberrypi for low power use
on battery system. Cannot afford to to restart bluetooth after each
disconnect.
Cheers John
