[SR-Users] handle_new_connect ... Too many open files

Hi, today during two hours kamailio made 2G of a syslog messages. This message was repeated for 10 000 000 times. /sbin/kamailio[24272]: ERROR: <core> [tcp_main.c:3959]: WARNING: handle_new_connect: error while accepting connection(24): Too many open files It was preceded by following error. /sbin/kamailio[24265]: ERROR: <core> [tcp_read.c:269]: error reading: Connection reset by peer (104) /sbin/kamailio[24265]: ERROR: <core> [tcp_read.c:882]: ERROR: tcp_read_req: error reading Finally it stopped without any given reason. I'm using kamailio 3.1.0 (i386/linux) 1e204f, callcontrol 2.0.11 and clustered mysql. Was this some kind of attack, bug, error, misconfiguration or what? Thank for answer, Efelin