ID: 47328 Updated by: il...@php.net Reported By: hszheng at gmail dot com -Status: Open +Status: Bogus Bug Type: Semaphore related Operating System: win32 PHP Version: 5.2.9RC1 New Comment:
Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php The system only allows so many shm segments, if you saturate the queue with the ones from PHP, apache will not be able to create internal segments and will abort. Previous Comments: ------------------------------------------------------------------------ [2009-02-06 10:26:20] hszheng at gmail dot com Description: ------------ php version 5.2.6 Build Date May 2 2008 18:01:20 PHP API 20041225 PHP Extension 20060613 Zend Extension 220060519 Apache/2.2.8 (Win32) PHP/5.2.6 Apache API Version 20051115 Request URL http://host/file1.php Request URL http://host/file2.php and refresh several times. windows alert that httpd.exe - application error. notice a memory address can not be "read". In Task manager during the operation, the process httpd.exe memory usage increment quickly, and then crashed. Reproduce code: --------------- file1.php -------------------------- <?php $int_shm = shmop_open(20000, 'c', 0600, 2048); shmop_write($int_shm, 'abcd', 0); shmop_close($int_shm); echo "OK"; ?> file2.php -------------------------- <?php for($i = 0; $i < 10000; $i ++){ $int_shm = shmop_open(20000, 'a', 0, 0); $str_data = trim(shmop_read($int_shm, 0, 100)); shmop_close($int_shm); } echo $str_data; echo "Done.<br />"; ?> Expected result: ---------------- Warning: shmop_open() [function.shmop-open]: unable to attach or create shared memory segment in F:\home\share_var2.php on line 3 Warning: shmop_read() [function.shmop-read]: no shared memory segment with an id of [0] in F:\home\share_var2.php on line 4 Warning: shmop_close() [function.shmop-close]: no shared memory segment with an id of [0] in F:\home\share_var2.php on line 5 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47328&edit=1
