Getting "Failed to update FD within epoll" in background mode

[kumbasar]

Getting below error if using -bg [Launch SIPp in background mode] argument.

sipp: The following events occured:
2014-05-12 05:08:37.318630 1399885717.318630: Attempted to use epoll on a file that does not support it - this may happen when stdin/stdout is redirected to /dev/null.
2014-05-12 05:08:43.852961 1399885723.852961: Failed to update FD within epoll, errno = 1 (Operation not permitted).

bash-3.2# sipp -v

SIPp v3.4.1-TLS-SCTP-PCAP-RTPSTREAM built May 12 2014, 02:40:46.

bash-3.2# uname -a
Linux localhost.localdomain 2.6.18-348.el5 #1 SMP Tue Jan 8 17:57:28 EST 2013 i686 i686 i386 GNU/Linux
bash-3.2#

bash-3.2# cat /etc/redhat-release
CentOS release 5.9 (Final)
bash-3.2#

[rkday]

The messages don't make this clear, but I think those are non-fatal warnings, not errors. Can you confirm whether SIPp is running as expected?

[kumbasar]

Yes SIPp is running as expected but it generates are logs.