JH> have all debug symbols enabled. Could you try to reproduce this with
JH> latest bluez git. You don't need to install anything but just compile

segfaults start after this commit:
[d5e700051b1263b2028331d41d60de02a5a6f90e] Fix append_variant_array()
to take a number of elements

Not every BT program kills bluetoothd, but Smartcam does.
http://sourceforge.net/projects/smartcam/
  [il@IL bluez]$ smartcam
  smartcam: registered DBUS service "org.gnome.smartcam"
  Found smartcam device file: /dev/video0
  smartcam: started comm thread
  smartcam: port = 1
  sdp_record_register: Protocol error

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