10/10 workernode external gateway issue

svc01/02 crashes

Core was generated by `/usr/bin/xrootd -l /var/log/xrootd/xrootd.log -c /etc/xrootd/xrootd-unified.cfg'.
Program terminated with signal 6, Aborted.
#0 0x00007f7a64db6387 in raise () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install xrootd-server-5.5.4-2.el7.x86_64
(gdb) bt
#0 0x00007f7a64db6387 in raise () from /lib64/libc.so.6
#1 0x00007f7a64db7a78 in abort () from /lib64/libc.so.6
#2 0x00007f7a6605f3c2 in XrdPollE::Start(XrdSysSemaphore*, int&) () from /lib64/libXrdUtils.so.3
#3 0x00007f7a6605dfa8 in XrdStartPolling(void*) () from /lib64/libXrdUtils.so.3
#4 0x00007f7a65fed6d7 in XrdSysThread_Xeq () from /lib64/libXrdUtils.so.3
#5 0x00007f7a65155ea5 in start_thread () from /lib64/libpthread.so.0
#6 0x00007f7a64e7e98d in clone () from /lib64/libc.so.6