celery child process backtrace with Python debugging symbols

#0  0x00007fe3e92a5d2d in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe3e6ab42b6 in read (__nbytes=4, __buf=0x7fff26ffffcc, __fd=5)
    at /usr/include/x86_64-linux-gnu/bits/unistd.h:45
#2  _Billiard_conn_recvall (h=5, buffer=<optimized out>, length=4)
    at Modules/_billiard/socket_connection.c:76
#3  0x00007fe3e6ab4811 in Billiard_conn_recv_string (
    buffer=0x1436cc0 "\200\002K\002(M\333\001Nccelery.app.trace\n_fast_trace_task\nq\001(XA", buflength=131072, newbuffer=0x7fff27000028, 
    maxlength=9223372036854775807, conn=<optimized out>)
    at Modules/_billiard/socket_connection.c:149
#4  0x00007fe3e6ab492c in Billiard_connection_recv_payload (self=0x1436ca0)
    at Modules/_billiard/connection.h:424
#5  0x00000000004fa041 in PyEval_EvalFrameEx ()
#6  0x00000000005008c2 in PyEval_EvalCodeEx ()
#7  0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#8  0x00000000005008c2 in PyEval_EvalCodeEx ()
#9  0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#10 0x00000000005008c2 in PyEval_EvalCodeEx ()
#11 0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#12 0x00000000005008c2 in PyEval_EvalCodeEx ()
#13 0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#14 0x00000000005008c2 in PyEval_EvalCodeEx ()
#15 0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#16 0x00000000005008c2 in PyEval_EvalCodeEx ()
#17 0x00000000004f9ab8 in PyEval_EvalFrameEx ()
#18 0x00000000005008c2 in PyEval_EvalCodeEx ()
#19 0x00000000004f9256 in PyRun_StringFlags ()
#20 0x0000000000501559 in PyRun_SimpleStringFlags ()
#21 0x000000000049a4ca in Py_Main ()
#22 0x00007fe3e7fa776d in __libc_start_main ()
   from /lib/x86_64-linux-gnu/libc.so.6
#23 0x000000000041bb31 in _start ()