On Thu, Jun 23, 2011 at 15:27, Zaccone, Warren <wzacc...@telcordia.com> wrote: > We recently started experiencing a problem on our server (httpd 2.2.19, PHP > 5.3.6) where all of the apache child processes hang in PHP code and no longer > process requests. > > I am running Apache as prefork on Solaris 10 with 256 children, and found > that within a few minutes all 256 httpd child processes are stuck, and it's > always in the same place within php_session_start in a php_flock call. > Stack trace is shown below. > > The file it is trying to flock is > /var/tmp/sess_2e39aabaf226819b67f29da477892e91.
May want to consider fsck'ing that drive, Warren. You may have some bad clusters that are causing disk I/O issues. Just one of many possibilities, of course, but the least favorite of all, obviously. -- </Daniel P. Brown> Network Infrastructure Manager http://www.php.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php