Description:
------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb75376d0 (LWP 14083)]
0xb763b38b in strlen () from /lib/i686/cmov/libc.so.6
(gdb) bt
#0  0xb763b38b in strlen () from /lib/i686/cmov/libc.so.6
#1  0x081f0e69 in php_mysqli_close (mysql=0x9e3a7c4, close_type=0, tsrm_ls=0x9ccd070) at /home/felipe/dev/php5/ext/mysqli/mysqli_api.c:562
#2  0x081ea033 in mysqli_link_free_storage (object=0x9e394f4, tsrm_ls=0x9ccd070) at /home/felipe/dev/php5/ext/mysqli/mysqli.c:225


Test script:
---------------
$x = new mysqli;
$x->connect();

Expected result:
----------------
No crash.

Actual result:
--------------
Warning: mysqli::connect(): (HY000/2002): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in Command line code on line 1
Segmentation fault