That would be because you failed to apply a workaround for bug 994921. It might require some tweaking :/
But lucky for you we did get enough info from the crash file: Stacktrace: #0 agent_get (owner=owner@entry=0x0) at src/agent.c:267 agent = <optimized out> #1 0x000055922049561b in adapter_register (adapter=0x559220a77c20) at src/adapter.c:7434 agent = <optimized out> db = <optimized out> #2 read_info_complete (status=<optimized out>, length=<optimized out>, param=<optimized out>, user_data=0x559220a77c20) at src/adapter.c:7897 adapter = 0x559220a77c20 rp = <optimized out> missing_settings = <optimized out> __func__ = "read_info_complete" #3 0x00005592204bf656 in request_complete (mgmt=mgmt@entry=0x559220a71d90, status=<optimized out>, opcode=opcode@entry=4, index=index@entry=0, length=length@entry=280, param=0x559220a72d29) at src/shared/mgmt.c:261 match = {opcode = 4, index = 0} request = 0x559220a72fb0 #4 0x00005592204c011c in can_read_data (io=<optimized out>, user_data=0x559220a71d90) at src/shared/mgmt.c:353 hdr = <optimized out> cc = 0x559220a72d26 cs = <optimized out> opcode = 4 event = <optimized out> index = <optimized out> length = 283 #5 0x00005592204cbe25 in watch_callback (channel=<optimized out>, cond=<optimized out>, user_data=<optimized out>) at src/shared/io-glib.c:170 watch = <optimized out> result = <optimized out> destroy = <optimized out> #6 0x00007f310746b04a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #7 0x00007f310746b3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #8 0x00007f310746b712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #9 0x000055922042d09d in main (argc=1, argv=0x7ffe83a0edb8) at src/main.c:687 context = <optimized out> err = 0x0 sdp_flags = <optimized out> gdbus_flags = <optimized out> watchdog = 0 watchdog_usec = <optimized out> __func__ = "main" StacktraceAddressSignature: /usr/lib/bluetooth/bluetoothd:4:/usr/lib/bluetooth/bluetoothd+8461b:/usr/lib/bluetooth/bluetoothd+ae656:/usr/lib/bluetooth/bluetoothd+af11c:/usr/lib/bluetooth/bluetoothd+bae25:/lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2+4a04a:/lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2+4a3f0:/lib/x86_64-linux-gnu/libglib-2.0.so.0.4800.2+4a712:/usr/lib/bluetooth/bluetoothd+1c09d StacktraceTop: agent_get (owner=owner@entry=0x0) at src/agent.c:267 adapter_register (adapter=0x559220a77c20) at src/adapter.c:7434 read_info_complete (status=<optimized out>, length=<optimized out>, param=<optimized out>, user_data=0x559220a77c20) at src/adapter.c:7897 request_complete (mgmt=mgmt@entry=0x559220a71d90, status=<optimized out>, opcode=opcode@entry=4, index=index@entry=0, length=length@entry=280, param=0x559220a72d29) at src/shared/mgmt.c:261 can_read_data (io=<optimized out>, user_data=0x559220a71d90) at src/shared/mgmt.c:353 Tags: xenial third-party-packages ThreadStacktrace: . Thread 1 (Thread 0x7f3107894880 (LWP 23334)): #0 agent_get (owner=owner@entry=0x0) at src/agent.c:267 agent = <optimized out> #1 0x000055922049561b in adapter_register (adapter=0x559220a77c20) at src/adapter.c:7434 agent = <optimized out> db = <optimized out> #2 read_info_complete (status=<optimized out>, length=<optimized out>, param=<optimized out>, user_data=0x559220a77c20) at src/adapter.c:7897 adapter = 0x559220a77c20 rp = <optimized out> missing_settings = <optimized out> __func__ = "read_info_complete" #3 0x00005592204bf656 in request_complete (mgmt=mgmt@entry=0x559220a71d90, status=<optimized out>, opcode=opcode@entry=4, index=index@entry=0, length=length@entry=280, param=0x559220a72d29) at src/shared/mgmt.c:261 match = {opcode = 4, index = 0} request = 0x559220a72fb0 #4 0x00005592204c011c in can_read_data (io=<optimized out>, user_data=0x559220a71d90) at src/shared/mgmt.c:353 hdr = <optimized out> cc = 0x559220a72d26 cs = <optimized out> opcode = 4 event = <optimized out> index = <optimized out> length = 283 #5 0x00005592204cbe25 in watch_callback (channel=<optimized out>, cond=<optimized out>, user_data=<optimized out>) at src/shared/io-glib.c:170 watch = <optimized out> result = <optimized out> destroy = <optimized out> #6 0x00007f310746b04a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #7 0x00007f310746b3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #8 0x00007f310746b712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #9 0x000055922042d09d in main (argc=1, argv=0x7ffe83a0edb8) at src/main.c:687 context = <optimized out> err = 0x0 sdp_flags = <optimized out> gdbus_flags = <optimized out> watchdog = 0 watchdog_usec = <optimized out> __func__ = "main" ** Changed in: bluez (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767124 Title: bluetoothd crashed with SIGILL in agent_get() from adapter_register() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1767124/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs