Hi, We have seen this messages on one of our server. OS: CentOS 5.5 Processor: Xeon E5520 @ 2.27GHz Memory: 24 GB localhost ]# rpm -qa | grep httpd httpd-2.2.3-43.el5.centos.3 system-config-httpd-1.3.3.3-1.el5 httpd-devel-2.2.3-43.el5.centos.3 httpd-devel-2.2.3-43.el5.centos.3 Need help in collecting data and solve the issue. Below are the details message kernel: httpd[2090]: segfault at 00007fff3bacfec4 rip 00002ba6bbc50855 rsp 00007fff3bacfe50 error 6 (gdb) bt full #0 0x00002b30a5a91b00 in __accept_nocancel () from /lib64/libpthread.so.0 No symbol table info available. #1 0x00002b30a58772f4 in apr_socket_accept () from /usr/lib64/libapr-1.so.0 No symbol table info available. #2 0x00002b30a3fbcc31 in unixd_accept () No symbol table info available. #3 0x00002b30a3fbb6d7 in ?? () No symbol table info available. #4 0x00002b30a3fbba1a in ?? () No symbol table info available. #5 0x00002b30a3fbc27d in ap_mpm_run () No symbol table info available. #6 0x00002b30a3f96e48 in main () No symbol table info available. (gdb) run Starting program: /usr/sbin/httpd [Thread debugging using libthread_db enabled] (98)Address already in use: make_sock: could not bind to address [::]:80 (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs Program exited with code 01. Please advice. Thank you, Sandeil