(gdb) bt full
#0  0x0053e7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
No symbol table info available.
#1  0x0057e7d5 in raise () from /lib/tls/libc.so.6
No symbol table info available.
#2  0x00580149 in abort () from /lib/tls/libc.so.6
No symbol table info available.
#3  0x00577db1 in __assert_fail () from /lib/tls/libc.so.6
No symbol table info available.
#4  0x00c10dcc in switch_core_codec_decode (codec=0x6, other_codec=0xb66d82b0, encoded_data=0x0, encoded_data_len=0,
    encoded_rate=8000, decoded_data=0x79d6, decoded_data_len=0x8260034, decoded_rate=0x8260040, flag=0xb65d43b8)
    at src/switch_core.c:747
        __PRETTY_FUNCTION__ = "switch_core_codec_decode"
        __FUNCTION__ = "switch_core_codec_decode"
#5  0x00c12410 in switch_core_session_read_frame (session=0x825ef20, frame=0xb65d4418, timeout=-1, stream_id=0)
    at src/switch_core.c:1629
        flag = 0
        ptr = Variable "ptr" is not available.