#30953 [NEW]: "Unable to fork" warnings after long periods of uptime

From: brett_hollon at adp dot com Operating system: Linux 2.4.18-27.8.0-5 PHP version: 4.3.8 PHP Bug Type: Program Execution Bug description: "Unable to fork" warnings after long periods of uptime Description: ------------ After several days of uptime on our apache server, PHP system() calls will begin to fail with "Unable to fork" warnings. A stop and start of apache clears the issue. Our apache server is configured with a large number 70-80 of listen ports. Additional system configuration information: Apache: 1.3.31 RAM 1.2GB Dual XEON 2.0 GHz /proc/sys/fs/file-max 70000 ./configure' '--target=' '--enable-memory-limit' '--with-apxs=/adp/home/www_serv/bin/apxs' '--with-gd' '--with-zlib' '--with-zlib-dir=/releases/SW809/target/SW' '--with-jpeg' '--with-jpeg-dir=/releases/SW809/target/SW' '--with-png' '--with-png-dir=/releases/SW809/target/SW' '--with-freetype' '--with-freetype-dir=/releases/SW809/target/SW' '--with-pdflib=/releases/SW809/target/SW' '--with-enable-dba' '--with-cdb' '--with-curl=/releases/SW809/target/SW' '--with-pgsql' '--with-unixODBC' '--with-gdbm' '--with-xmlrpc' -- Edit bug report at http://bugs.php.net/?id=30953&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30953&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30953&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30953&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=30953&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=30953&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=30953&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=30953&r=needscript Try newer version: http://bugs.php.net/fix.php?id=30953&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=30953&r=support Expected behavior: http://bugs.php.net/fix.php?id=30953&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=30953&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=30953&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=30953&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30953&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=30953&r=dst IIS Stability: http://bugs.php.net/fix.php?id=30953&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=30953&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=30953&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=30953&r=mysqlcfg