regression: gdbserver no such file or directory while remote debugging

Since the beta1, when remote debugging using gdb, I get the error "gdbserver: no such file or directory". it works with 7 without problem. I tried to enter the full path to the gdbserver in the "linux device" settings, but that did not help. I also disabled qml debugging to be sure(i'm not using it) but that did not help.

The gdbserver is located in /usr/bin/gdbserver on my remote device.

My setup is a generic linux device where I login using a username and a key over ssh. it works with all previous qtcreator versions, so I doubt my setup is to blame