randyw Hello, Environment: OpenVPN 2.1.3 (non-standard TCP port) on RedHat 5.4el-64bit Maximum number of users is about 10, mixture of PC and Mac clients. I am having periodic crashes with core dumps enabled: -rw------- 1 root root 2105344 Sep 22 14:31 core.13382 -rw------- 1 root root 3964928 Oct 8 16:25 core.17164 -rw------- 1 root root 2519040 Oct 14 14:24 core.17935 -rw------- 1 root root 4050944 Oct 4 15:04 core.6679 They all have gdb output something like: # gdb /usr/local/sbin/openvpn core.17935 ...< much stuff snipped here >... Reading symbols from /lib64/libaudit.so.0...(no debugging symbols found)...done. Loaded symbols for /lib64/libaudit.so.0 Core was generated by `/usr/local/sbin/openvpn --cd /etc/openvpn --daemon --config server.conf'. Program terminated with signal 11, Segmentation fault. #0 do_compress (in=<value optimized out>, in_len=1406, out=0x11a4e34 "", out_len=0x7fff7362ccc4, wrkmem=0x12314e0) at lzo1x_c.ch:86 86 lzo1x_c.ch: No such file or directory. in lzo1x_c.ch (gdb) All four of the above core dumps have the Seg. fault and the lzo1x_c.ch: No such file... message. I'm not sure if this is an LZO problem or what. server.conf is below. I do not see any LZO errors in the openvpn.log file. The OS is 64 bit and so are the lzo libraries: # file /usr/lib64/liblzo.so.1.0.0 /usr/lib64/liblzo.so.1.0.0: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), not stripped # file /usr/lib64/liblzo2.so.2.0.0 /usr/lib64/liblzo2.so.2.0.0: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), not stripped I have a script which checks connectivity and before and after restarting OpenVPN does a ps ax | grep openvpn The output from the last crash was: ****** before restart ******* 11755 ? R 0:00 grep openvpn 17930 ? S 0:00 /usr/local/sbin/openvpn --cd /etc/openvpn --daemon ****** after restart ******* 11763 ? S 0:00 /usr/local/sbin/openvpn --cd /etc/openvpn --daemon --config server.conf 11769 ? Ss 0:00 /usr/local/sbin/openvpn --cd /etc/openvpn --daemon --config server.conf 11771 ? S 0:00 grep openvpn Does anybody have any suggestions on how I should proceed with troubleshooting this problem? What is most perplexing is that it only happens every four to ten days or so. Thanks. Randy server.conf: # cat server.conf dev tun proto tcp port XXXX (a non-standard port) keepalive 10 120 server 10.x.x.0 255.255.255.0 duplicate-cn ca ca.crt cert server.crt key server.key dh dh1024.pem plugin /etc/openvpn/openvpn-auth-pam.so login client-cert-not-required username-as-common-name script-security 2 comp-lzo verb 4 persist-key persist-tun status openvpn-status.log log-append /var/log/openvpn.log
dazo Try to install the lzo-debuginfo package. You seem to be missing that package. I don't have RHEL box handy right now, but I believe this should do it. [root@host ~] # yum --enablerepo=* install lzo-debuginfo
