(gdb) bt
#0  0x00007f3049025e71 in __strlen_sse2 () from /lib64/libc.so.6
#1  0x00007f2ff30cbcd9 in external_media_audiosocket_tcp (args=args@entry=0x7f2fe94a69c0, variables=0x0, response=response@entry=0x7f2fe94a6bb0) at ari/resource_channels.c:2137
#2  0x00007f2ff30d15ff in ast_ari_channels_external_media (headers=headers@entry=0x7f301c000ad0, args=args@entry=0x7f2fe94a69c0, response=0x7f2fe94a6bb0) at ari/resource_channels.c:2234
#3  0x00007f2ff30c791d in ast_ari_channels_external_media_cb (ser=<optimized out>, get_params=<optimized out>, path_vars=<optimized out>, headers=0x7f301c000ad0, body=<optimized out>,
    response=<optimized out>) at res_ari_channels.c:2909
#4  0x00007f2ffd770f39 in ast_ari_invoke (ser=ser@entry=0x7f2fe0001690, uri=uri@entry=0x7f2fe94a6c7a "channels/externalMedia", method=method@entry=AST_HTTP_POST,
    get_params=get_params@entry=0x7f301c001ae0, headers=headers@entry=0x7f301c000ad0, body=body@entry=0x0, response=response@entry=0x7f2fe94a6bb0) at res_ari.c:587
#5  0x00007f2ffd7724a1 in ast_ari_callback (ser=0x7f2fe0001690, urih=0x7f2ffd979440 <http_uri>, uri=0x7f2fe94a6c7a "channels/externalMedia", method=AST_HTTP_POST,
    get_params=0x7f301c001ae0, headers=0x7f301c000ad0) at res_ari.c:1058
#6  0x00000000005f0420 in handle_uri (headers=0x7f301c000ad0, method=AST_HTTP_POST, uri=0x7f2fe94a6c7a "channels/externalMedia", ser=0x7f2fe0001690) at http.c:1487
#7  httpd_process_request (ser=ser@entry=0x7f2fe0001690) at http.c:1928
#8  0x00000000005f069b in httpd_helper_thread (data=0x7f2fe0001690) at http.c:1991
#9  0x00000000005aa199 in dummy_start (data=<optimized out>) at utils.c:1428
#10 0x00007f3049cf7ea5 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f30490979fd in clone () from /lib64/libc.so.6