#41857 [NEW]: proc_close() sometimes returns 0 but most times returns -1

From: charpour at gnet dot gr Operating system: Debian 4.0 etch/Slackware 10.2.0 PHP version: 5.2.3 PHP Bug Type: Program Execution Bug description: proc_close() sometimes returns 0 but most times returns -1 Description: ------------ Sometimes proc_close() returns the expected value "0" but most times returns -1. Configure command: './configure' '--prefix=/usr/local/php5.2' '--with-mysql' '--with-mysql-sock' '--with-sqlite' '--enable-sqlite-utf8' '--with-zlib' '--with-zlib-dir' '--with-bz2' '--with-config-file-path=/usr/local/php5.2' '--enable-mbstring' '--enable-sigchild' '--enable-pcntl' '--enable-shmop' '--enable-sysvsem' '--enable-cli' '--disable-cgi' Reproduce code: --------------- <?php $descriptorspec = array( 0 => array("pipe", "r"), 1 => array("pipe", "w"), 2 => array("file", "/tmp/error-output.txt", "a") ); $cwd = '/tmp'; $process = proc_open('ls -lap', $descriptorspec, $pipes, $cwd); if (is_resource($process)) { fclose($pipes[0]); echo stream_get_contents($pipes[1]); fclose($pipes[1]); $return_value = proc_close($process); echo "command returned $return_value\n"; } ?> Expected result: ---------------- command returned 0. Actual result: -------------- command returned 0. or command returned -1. -- Edit bug report at http://bugs.php.net/?id=41857&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41857&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41857&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41857&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41857&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41857&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41857&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41857&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41857&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41857&r=support Expected behavior: http://bugs.php.net/fix.php?id=41857&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41857&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41857&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41857&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41857&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41857&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41857&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41857&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41857&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41857&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41857&r=mysqlcfg