Failed to delete FD from epoll, errno = 1 (Operation not permitted)

[Putomi]

Hi,

I got the following error message when I make a single call with SIPp(SIPp(3.6.0) is runned by Robot framework in K8s pods):

Failed to delete FD from epoll, errno = 1 (Operation not permitted)

I use these commands for start traffic: bash-4.4# sipp -t tn -trace_stat -trace_screen -r 100 -sf /etc/sipp_traffic/a2c/uac_reg_access_core_bye_dereg.xml -r 100 -d 1000 -i 12.0.0.1 -p 8004 -inf /etc/sipp_traffic/database.csv 192.168.1.10:5060 bash-4.4# sipp -t tn -trace_stat -trace_screen -r 100 -sf /etc/sipp_traffic/a2c/uas_reg_access_core_bye_dereg.xml -i 192.168.1.10 -p 5060

I used default SIP scenario, and TCP packets(with UDP is works well without any problem) All the SIP messages looks good, but the call is failed. Do you have any idea what it is?

Thanks.

[linuxmaniac]

Same error for me using 3.6.0 and 3.6.1

sipp -max_socket 5000 -t u1 -inf callee.csv -inf caller.csv -sf sipp_scenario00.xml -i 127.126.0.1 -p 51602 -nr -nd -m 1 -mp 45003 -timeout 15 -timeout_error -trace_err 127.0.0.1

no TCP involve here, works with 3.5.2

[wdoekes]

And master?

[linuxmaniac]

Same thing

cat log/scenarios/invite/sipp_scenario_responder00_3799_errors.log ; sipp -v
The following events occurred:
2021-01-15      15:30:46.070359 1610721046.070359: Failed to delete FD from epoll, errno = 1 (Operation not permitted)
 SIPp v3.7.x-SCTP-PCAP-RTPSTREAM-RTPCHECK.

[linuxmaniac]

tested same scenario with 3.5.3, no error

[linuxmaniac]

Attached strace output of 3.6.1 sipp_strace.log sipp_strace_resp.log

and 3.5.3 + https://github.com/lemenkov/sipp/commit/0bdf831a1bdf337bc60f54ada1c5efa3983333af + https://github.com/lemenkov/sipp/commit/37bff83a6c8083aa7b797ebb97d41f149a37af56 (needed to build it on bullseye)

sipp_3.5.3_strace.log sipp_3.5.3_strace_resp.log

[adamoverbeeke]

We are getting this after upgrading from 3.5.1 to 3.6.1;

Any resolution as to why this is printing out?

Failed to delete FD from epoll, errno = 1 (Operation not permitted)