[PHP-BUG] Bug #51580 [NEW]: socket_select randomly crashes when used together with fork and Unix signals
[email protected] ("marco at vmsoft-gbr dot de")
| Newsgroups | php.bugs |
|---|---|
| Message-ID | <[email protected]> |
From: Operating system: Debian Linux PHP version: 5.3.2 Package: PCNTL related Bug Type: Bug Bug description:socket_select randomly crashes when used together with fork and Unix signals Description: ------------ When firing unix signals onto a forked process with pcntl_signal handlers active and a socket_select currently running, socket_select may crash. Run the test script with php test.php 1339, and then launch some "kill -s 10 <child pid>" on it. After some, maybe just one, kill's, the script will crash. Test script: --------------- http://php.pastebin.com/Td68vtMn Expected result: ---------------- Installing signal handlers Installing handler for signal 15 Installing handler for signal 10 child-pid 20030 running marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 (etc) Actual result: -------------- Installing signal handlers Installing handler for signal 15 Installing handler for signal 10 child-pid 20030 running marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 marco@vs932:~/php_daemon$ kill -s 10 20030 got signal 10 marco@vs932:~/php_daemon$ kill -s 10 20030 marco@vs932:~/php_daemon$ PHP Warning: socket_select(): unable to select [4]: Interrupted system call in /home/marco/php_daemon/test.php on line 39 socket_select failed: Interrupted system call end marco@vs932:~/php_daemon$ -- Edit bug report at http://bugs.php.net/bug.php?id=51580&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51580&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51580&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51580&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51580&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51580&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51580&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51580&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51580&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51580&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51580&r=support Expected behavior: http://bugs.php.net/fix.php?id=51580&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51580&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51580&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51580&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51580&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51580&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51580&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51580&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51580&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51580&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51580&r=mysqlcfg