Bug #16032: program spawned by backticks or shell_exec does not die when user cancels page

From: reed@zerohour.net Operating system: Debian GNU/Linux (kernel 2.2.16) PHP version: 4.1.2 PHP Bug Type: Program Execution Bug description: program spawned by backticks or shell_exec does not die when user cancels page A process spawned by backticks (backquotes) or with shell_exec() hang around indefinitely if I cancel the page while it's running. The program I'm running is a Perl script... $list = mp-list 2>&1; $list2 = shell_exec("mp-list 2>&1"); $status = shell_exec("mp-add $file 2>&1"); (it's taking too long because of a bug in our networking code -- maybe this is why its not dying?) When I do a ps ax (several minutes later) I get a whole bunch of stuff like: 27030 ? S 0:00 /usr/sbin/apache 27031 ? S 0:00 sh -c mp-list 2>&1 27032 ? R 0:23 /usr/bin/perl /usr/local/bin/mp-list Happens when I 'cancel' in MS IE 5 and in OmniWeb (Macintosh browsers). thanks reed -- Edit bug report at http://bugs.php.net/?id=16032&edit=1 -- Fixed in CVS: http://bugs.php.net/fix.php?id=16032&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=16032&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=16032&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=16032&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=16032&r=support Expected behavior: http://bugs.php.net/fix.php?id=16032&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=16032&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=16032&r=submittedtwice