I restarted Kamailio after a while and I see this issue...
Not sure what triggered this. It was working fine before.
Krish Kura
Apr 1 07:41:02 (none) /usr/sbin/kamailio[24074]: INFO: tls
[tls_domain.c:235]: TLSs<10.1.0.4:5061>: verify_certificate=1
Apr 1 07:41:02 (none) /usr/sbin/kamailio[24074]: INFO: tls
[tls_domain.c:238]: TLSs<10.1.0.4:5061>: verify_depth=3
Apr 1 07:41:02 (none) /usr/sbin/kamailio[24074]: INFO: tls
[tls_domain.c:567]: TLSs<10.1.0.4:5061>: IF client provides certificate
then it MUST be valid
Apr 1 07:41:02 (none) /usr/sbin/kamailio[24082]: INFO: ctl
[io_listener.c:225]: io_listen_loop: using epoll_lt io watch method
(config)
Apr 1 07:41:41 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:41:41 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:41:41 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:41:41 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:42:21 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
Apr 1 07:42:45 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:42:45 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:42:45 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:42:45 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
Apr 1 07:43:39 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:43:39 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:43:39 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:43:39 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
Apr 1 07:45:22 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3575]: BUG: handle_ser_child: fd -1 for 0 (pid 24074)
Apr 1 07:45:22 (none) /usr/sbin/kamailio[24084]: : <core>
[tcp_main.c:3338]: BUG: handle_tcp_child: fd -1061109568 for 0 (pid 0, ser
no 0)
Apr 1 07:45:22 (none) /usr/sbin/kamailio[24084]: : <core> [pass_fd.c:209]:
ERROR: send_fd: sendmsg failed sending 19 on -1061109568: Bad file
descriptor (9)
Apr 1 07:45:22 (none) /usr/sbin/kamailio[24084]: ERROR: <core>
[tcp_main.c:4003]: ERROR: send2child: send_fd failed for 0x7ff3c82b3bb8
(flags 0x4018), fd 19
