[sr-dev] [kamailio/kamailio] Kamailio crushes when tcp errors invalid fd -1 (#748)

[mbike2000ru]

Hi
Kamailio crushes with lots of such CRITICAL errors:

Aug 16 15:09:48 kam-fe1 kamailio[8485]: CRITICAL: <core> [tcp_read.c:1654]: handle_io(): io_watch_del failed for 0x7f3e610a3a70 id 105 fd -1, state -1, flags 4028, main fd -1, refcnt -2117 ([178.209.103.226]:40855 -> [178
.209.103.226]:5060)
Aug 16 15:09:48 kam-fe1 kamailio[8479]: CRITICAL: <core> [io_wait.h:594]: io_watch_del(): invalid fd -1, not in [0, 23)
Aug 16 15:09:48 kam-fe1 kamailio[8481]: WARNING: <core> [tcp_read.c:1629]: handle_io(): F_TCPCONN connection marked as bad: 0x7f3e608454e8 id 78 refcnt -257
Aug 16 15:09:48 kam-fe1 kamailio[8379]: INFO: <script>: 52373459-303f6c6b at 192.168.2.2|log|source 128.204.55.172:5160
Aug 16 15:09:48 kam-fe1 kamailio[8485]: WARNING: <core> [tcp_read.c:1629]: handle_io(): F_TCPCONN connection marked as bad: 0x7f3e610a3a70 id 105 refcnt -2117
Aug 16 15:09:48 kam-fe1 kamailio[8479]: CRITICAL: <core> [tcp_read.c:1654]: handle_io(): io_watch_del failed for 0x7f3e63c73d90 id 984 fd -1, state -1, flags 5022, main fd -1, refcnt -126097 ([81.211.54.218]:51642 -> [81.
211.54.218]:5060)
Aug 16 15:09:48 kam-fe1 kamailio[8481]: CRITICAL: <core> [io_wait.h:594]: io_watch_del(): invalid fd -1, not in [0, 2)
Aug 16 15:09:48 kam-fe1 kamailio[8379]: INFO: <script>: 52373459-303f6c6b at 192.168.2.2|log|from sip:Menedzher1_UYHPQ at 29161.ztpbx.ru
Aug 16 15:09:48 kam-fe1 kamailio[8485]: CRITICAL: <core> [io_wait.h:594]: io_watch_del(): invalid fd -1, not in [0, 2)
Aug 16 15:09:48 kam-fe1 kamailio[8377]: ALERT: <core> [main.c:728]: handle_sigs(): child process 8504 exited by a signal 11

+++++++++++++++++++++++++++++++++
kamailio -v
version: kamailio 4.3.5 (x86_64/linux)
flags: STATS: Off, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: unknown
compiled on 17:51:55 Mar  8 2016 with gcc 4.4.7

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