hi frank, thank you so much for the reply. we are using 'prefork' and our server is architecture is : x86-64.
you can see the loaded modules for apache2hanlder below core prefork http_core mod_so mod_authz_host mod_authz_user mod_authz_owner mod_authz_groupfile mod_authz_dbm mod_authz_default mod_include mod_log_config mod_env mod_mime_magic mod_expires mod_headers mod_setenvif mod_mime mod_status mod_autoindex mod_asis mod_negotiation mod_dir mod_alias mod_rewrite mod_php5 --rats ________________________________ From: Frank Gingras <francois.ging...@gmail.com> To: users@httpd.apache.org Sent: Wednesday, 25 March, 2009 8:53:28 PM Subject: Re: [us...@httpd] need help on "Program terminated with signal 11, Segmentation fault" Are you using worker, by any chance? Frank rats1027-segfa...@yahoo.co.in wrote: > Hi Guys, > > We are have a problem with apache segfault on our production server. Please > read bellow for description. > > Its a web application written in php5 and implemented most of the oop > concepts and lot of regular expressions, curl, mcrypt, simplexml, mssql, > exceptions and user defined error handlers. When we run this app on our test > server, we had no problems, but when we moved it on to the production(here we > used have big amount of traffic), initially we saw no problems from our end > user testing but from system log, we saw lots of 'segfaults' and thus > requests were being dropped(difference in traffic). > > Weird thing is that, on the same apache httpd, there is an another > application running successfully which is having lesser oop concepts but with > same libraries. We are running these two applications with virtual host > concept. We see 'segfaults' only when the traffic is very high on the first > application. > > We have upgraded our php module from 5.2.6 to 5.2.9 but with no result. We > have the core dump of the apache below: > > #0 0x000055555557dfee in ap_merge_per_dir_configs () from /usr/sbin/httpd > No symbol table info available. > #1 0x000055555557b121 in ap_directory_walk () from /usr/sbin/httpd > No symbol table info available. > #2 0x00005555555765b9 in ap_is_recursion_limit_exceeded () from > /usr/sbin/httpd > No symbol table info available. > #3 0x0000555555578b42 in ap_run_map_to_storage () from /usr/sbin/httpd > No symbol table info available. > #4 0x0000555555579cbc in ap_process_request_internal () from /usr/sbin/httpd > No symbol table info available. > #5 0x000055555558b668 in ap_process_request () from /usr/sbin/httpd > No symbol table info available. > #6 0x0000555555588900 in ap_register_input_filter () from /usr/sbin/httpd > No symbol table info available. > #7 0x0000555555584a92 in ap_run_process_connection () from /usr/sbin/httpd > No symbol table info available. > #8 0x000055555558f27b in ap_graceful_stop_signalled () from /usr/sbin/httpd > No symbol table info available. > #9 0x000055555558f50a in ap_graceful_stop_signalled () from /usr/sbin/httpd > No symbol table info available. > #10 0x000055555558fd7b in ap_mpm_run () from /usr/sbin/httpd > No symbol table info available. > #11 0x000055555556ade4 in main () from /usr/sbin/httpd > No symbol table info available. > > We have tried modifying most of the curl implementation but with no use. Also > now we have no clues of the origin of the bug. Any kind of help regarding > this is mostly appreciated. > > THANK YOU > --rats > > > > Add more friends to your messenger and enjoy! Go to > http://messenger.yahoo.com/invite/ > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org " from the digest: users-digest-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org Connect with friends all over the world. Get Yahoo! India Messenger at http://in.messenger.yahoo.com/?wm=n/
