From: Olaf dot Imig at bifab dot de
Operating system: Linux(x86)/Solaris(sparc)
PHP version: 5.1.4
PHP Bug Type: OCI8 related
Bug description: PHP in Apache crash after Database-Restart while using
persistent connections
Description:
------------
The following behavior ist reproduceable:
-Call the script
-shutdown/startup the Database
-Call the script
=> Apache Instance crash
The bug is forced, when you call the script many times. For the tests I
used the OCI8 stuff from Oracle8i on Solaris and from Oracle8i and
Oracle10g on Linux. The result was the same. Without persistent connection
all is perfect.
Perhaps I can deliver a Solution. I made two changes in the code and the
bug vanished.
After restart of Database php_oci_connection_ping found invalid
connections.
The first problem was here, that the function php_oci_connection_close was
called twice, first time triggered through
zend_hash_del(&EG(persistent_list)...
and then through a direct call. The Oracle-C-functions don't like this.
Furthermore some pointers was freed twice.
The second problem is the call of OCISessionEnd, when the Connection is
invalid. Setting of connection->is_close=0 before calling
php_oci_connection_close was helpful in this special case.
On demand I can send my patch.
Reproduce code:
---------------
$db=ociplogon("OPASUSER","OPASPASS","TOPASL");
if(!$db){
print "Connection failed\n";
exit;
}
ocilogoff($db);
--
Edit bug report at http://bugs.php.net/?id=37931&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=37931&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=37931&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=37931&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=37931&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=37931&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=37931&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=37931&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=37931&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=37931&r=support
Expected behavior: http://bugs.php.net/fix.php?id=37931&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=37931&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=37931&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=37931&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=37931&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=37931&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=37931&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=37931&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=37931&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=37931&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=37931&r=mysqlcfg
