Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff75ea8700 (LWP 27851)] 0x0000000000000000 in ?? () (gdb) where #0 0x0000000000000000 in () #1 0x00007ffff6fd7cee in network_service_accept_certificate_cb (connection=, peer_certificate=0x7fff60004ad0 [GTlsCertificateGnutls], errors=9, service=0xa9b2c0) at camel-network-service.c:247 #2 0x00007fffe90cffe0 in ffi_call_unix64 () at /lib64/libffi.so.6 #3 0x00007fffe90cfa48 in ffi_call () at /lib64/libffi.so.6 #4 0x00007ffff3bb6d5c in g_cclosure_marshal_generic_va (closure=0x7fff60006660, return_value=0x7fff75ea7730, instance=0x43887a0, args_list=, marshal_data=0x0, n_params=2, param_types=0x7fff7001f710) at gclosure.c:1541 #5 0x00007ffff3bb6314 in _g_closure_invoke_va (closure=0x43ecd60, closure@entry=0x7fff60006660, return_value=0xa9b2c0, return_value@entry=0x7fff75ea7730, instance=0x7fff60004ad0, instance@entry=0x43887a0, args=0x9, args@entry=0x7fff75ea7838, n_params=1, param_types=0x7fffc0027b00) at gclosure.c:831 #6 0x00007ffff3bcf24e in g_signal_emit_valist (instance=0x43887a0, signal_id=, detail=, var_args=var_args@entry=0x7fff75ea7838) at gsignal.c:3218 #7 0x00007ffff3bd0082 in g_signal_emit (instance=, signal_id=, detail=detail@entry=0) at gsignal.c:3365 #8 0x00007ffff3e7d4c6 in g_tls_connection_emit_accept_certificate (conn=, peer_cert=peer_cert@entry=0x7fff60004ad0 [GTlsCertificateGnutls], errors=errors@entry=9) at gtlsconnection.c:854 #9 0x00007fff5fdefd08 in finish_handshake (peer_certificate_errors=9, peer_certificate=0x7fff60004ad0 [GTlsCertificateGnutls], gnutls=0x43887a0 [GTlsClientConnectionGnutls]) at gtlsconnection-gnutls.c:1300 #10 0x00007fff5fdefd08 in finish_handshake (gnutls=gnutls@entry=0x43887a0 [GTlsClientConnectionGnutls], task=, error=error@entry=0x7fff75ea7968) at gtlsconnection-gnutls.c:1331 #11 0x00007fff5fdefeb0 in do_implicit_handshake (gnutls=gnutls@entry=0x43887a0 [GTlsClientConnectionGnutls], blocking=blocking@entry=1, cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at gtlsconnection-gnutls.c:1492 #12 0x00007fff5fdf01b1 in claim_op (gnutls=gnutls@entry=0x43887a0 [GTlsClientConnectionGnutls], op=op@entry=G_TLS_CONNECTION_GNUTLS_OP_WRITE, blocking=blocking@entry=1, cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at gtlsconnection-gnutls.c:597 #13 0x00007fff5fdf2a51 in g_tls_connection_gnutls_write (gnutls=0x43887a0 [GTlsClientConnectionGnutls], buffer=0x7fff60005160, count=14, blocking=1, cancellable=0x43eced0 [CamelOperation], error=0x7fff75ea7c98) at gtlsconnection-gnutls.c:1566 #14 0x00007ffff3e5fd52 in g_output_stream_write (stream=stream@entry=0x7fff700066a0 [GTlsOutputStreamGnutls], buffer=buffer@entry=0x7fff60005160, count=count@entry=14, cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at goutputstream.c:219 #15 0x00007ffff3e5ff00 in g_output_stream_write_all (stream=0x7fff700066a0 [GTlsOutputStreamGnutls], buffer=buffer@entry=0x7fff60005160, count=count@entry=14, bytes_written=bytes_written@entry=0x7fff75ea7af8, cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at goutputstream.c:271 #16 0x00007ffff6ffff42 in stream_write (stream=, buffer=0x7fff60005160 "EHLO newhost\r\n", n=14, cancellable=0x43eced0 [CamelOperation], error=0x7fff75ea7c98) at camel-stream.c:161 #17 0x00007ffff70004f1 in camel_stream_write (stream=0x43d4d50 [CamelStream], buffer=buffer@entry=0x7fff60005160 "EHLO newhost\r\n", n=14, cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at camel-stream.c:542 #18 0x00007ffff7000a4b in camel_stream_write_string (stream=, string=string@entry=0x7fff60005160 "EHLO newhost\r\n", cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at camel-stream.c:649 #19 0x00007fffcedf8e0a in smtp_helo (transport=transport@entry=0xa9b2c0 [CamelSmtpTransport], cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at camel-smtp-transport.c:1253 #20 0x00007fffcedfa4dd in connect_to_server (service=service@entry=0xa9b2c0 [CamelSmtpTransport], cancellable=cancellable@entry=0x43eced0 [CamelOperation], error=error@entry=0x7fff75ea7c98) at camel-smtp-transport.c:274 #21 0x00007fffcedfae78 in smtp_transport_query_auth_types_sync (service=0xa9b2c0 [CamelSmtpTransport], cancellable=0x43eced0 [CamelOperation], error=0x7fff75ea7c98) at camel-smtp-transport.c:692 #22 0x00007ffff6fed55a in service_query_auth_types_thread (task=0x409d6e0 [GTask], source_object=0xa9b2c0, task_data=, cancellable=0x43eced0 [CamelOperation]) at camel-service.c:2299 #23 0x00007ffff3e77ec5 in g_task_thread_pool_thread (thread_data=0x409d6e0, pool_data=) at gtask.c:1215 #24 0x00007ffff39086f8 in g_thread_pool_thread_proxy (data=) at gthreadpool.c:307 #25 0x00007ffff3907d75 in g_thread_proxy (data=0x426a8a0) at gthread.c:764 #26 0x00007ffff6d425bd in start_thread (arg=0x7fff75ea8700) at pthread_create.c:310 #27 0x00007ffff35dc62d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109