Bug #13596: php crash on second accessing of allocated memory
| From: | ozoon at vnet dot ee | Date: | Mon, 08 Oct 2001 11:33:08 +0000 |
| Subject: | Bug #13596: php crash on second accessing of allocated memory | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-67529@lists.php.net to get a copy of this message | ||
From: ozoon@vnet.ee
Operating system: redhat 7.1
PHP version: 4.0.6
PHP Bug Type: Semaphore related
Bug description: php crash on second accessing of allocated memory
Hi.
Its seems to be impossible to use shmop_write if you are opening memory
segment secong time.
example code (produces crash):
$mid = 0xffe;
$shm_id = shmop_open($mid, "c", 0644, 100);
if(!$shm_id) {
echo "Couldn't create shared memory segment\n";
}
$shm_bytes_written = shmop_write($shm_id, "my shared memory block", 0);
if($shm_bytes_written != strlen("my shared memory block")) {
echo "Couldn't write the entire length of data\n";
}
shmop_close($shm_id);
$shm_id = shmop_open($mid, "a", 0, 0);
$shm_bytes_written = shmop_write($shm_id, "my shared memory block", 0);
if($shm_bytes_written != strlen("my shared memory block")) {
echo "Couldn't write the entire length of data\n";
}
shmop_close($shm_id);
I did somehting wrong? or i should use other release of PHP?
O.
--
Edit bug report at: http://bugs.php.net/?id=13596&edit=1