ID: 32852
Updated by: [EMAIL PROTECTED]
Reported By: cox at idecnet dot com
-Status: Open
+Status: Feedback
Bug Type: Reproducible crash
Operating System: Linux
PHP Version: 5.0.4
New Comment:
For some reason it doesn't crash for me..did you use --enable-debug ?
Previous Comments:
------------------------------------------------------------------------
[2005-04-27 14:10:28] cox at idecnet dot com
I'm not very expert on gdb usage. Please tell me if you need extra
info.
$ gdb /usr/bin/php5.0.5dev core.31085
GNU gdb 6.0-2mdk (Mandrake Linux)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i586-mandrake-linux-gnu"...Using host
libthread_db library "/lib/tls/libthread_db.so.1".
Core was generated by `/usr/bin/php5.0.5dev test.php'.
Program terminated with signal 11, Segmentation fault.
warning: current_sos: Can't read pathname for load map: Input/output
error
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /usr/lib/libexpat.so.0...done.
Loaded symbols for /usr/lib/libexpat.so.0
Reading symbols from /usr/lib/libmysqlclient.so.12...done.
Loaded symbols for /usr/lib/libmysqlclient.so.12
Reading symbols from /lib/libz.so.1...done.
Loaded symbols for /lib/libz.so.1
Reading symbols from /lib/tls/libm.so.6...done.
Loaded symbols for /lib/tls/libm.so.6
Reading symbols from /usr/lib/libmhash.so.2...done.
Loaded symbols for /usr/lib/libmhash.so.2
Reading symbols from /usr/lib/libmcrypt.so.4...done.
Loaded symbols for /usr/lib/libmcrypt.so.4
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libltdl.so.3...done.
Loaded symbols for /usr/lib/libltdl.so.3
Reading symbols from /lib/libpam.so.0...done.
Loaded symbols for /lib/libpam.so.0
Reading symbols from /usr/lib/libfreetype.so.6...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libpng.so.3...done.
Loaded symbols for /usr/lib/libpng.so.3
Reading symbols from /usr/lib/libjpeg.so.62...done.
Loaded symbols for /usr/lib/libjpeg.so.62
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /usr/lib/libgssapi_krb5.so.2...done.
Loaded symbols for /usr/lib/libgssapi_krb5.so.2
Reading symbols from /usr/lib/libkrb5.so.3...done.
Loaded symbols for /usr/lib/libkrb5.so.3
Reading symbols from /usr/lib/libk5crypto.so.3...done.
Loaded symbols for /usr/lib/libk5crypto.so.3
Reading symbols from /lib/libcom_err.so.2...done.
Loaded symbols for /lib/libcom_err.so.2
Reading symbols from /usr/lib/libssl.so.0.9.7...done.
Loaded symbols for /usr/lib/libssl.so.0.9.7
Reading symbols from /usr/lib/libcrypto.so.0.9.7...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.7
Reading symbols from /usr/lib/libxml2.so.2...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /lib/tls/libpthread.so.0...done.
Loaded symbols for /lib/tls/libpthread.so.0
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0 0x08234e5a in zend_get_class_entry (zobject=0x844556c)
at /usr/src/php5-STABLE-200504271035/Zend/zend_API.c:204
204 if (Z_OBJ_HT_P(zobject)->get_class_entry) {
(gdb) bt
#0 0x08234e5a in zend_get_class_entry (zobject=0x844556c)
at /usr/src/php5-STABLE-200504271035/Zend/zend_API.c:204
#1 0x0825c021 in zend_assign_to_variable (result=0x845cefc,
op1=0x845cf10,
op2=0x845cf24, value=0x844556c, type=4, Ts=0xbfffcfb0)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:599
#2 0x0825c48f in zend_assign_handler (execute_data=0xbfffd0d0,
opline=0x845cef8, op_array=0x845b884)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:2267
#3 0x082587a6 in execute (op_array=0x845b884)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:1411
#4 0x0825d759 in zend_do_fcall_common_helper
(execute_data=0xbfffd1f0,
opline=0x8459b10, op_array=0x84557f4)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:2761
#5 0x0825dd20 in zend_do_fcall_by_name_handler
(execute_data=0xbfffd1f0,
opline=0x8459b10, op_array=0x84557f4)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:2846
#6 0x082587a6 in execute (op_array=0x84557f4)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:1411
#7 0x082346fa in zend_execute_scripts (type=8, retval=0x0,
file_count=3)
at /usr/src/php5-STABLE-200504271035/Zend/zend.c:1076
#8 0x081f3e9f in php_execute_script (primary_file=0xbffff600)
at /usr/src/php5-STABLE-200504271035/main/main.c:1638
#9 0x08264ebf in main (argc=2, argv=0xbffff6c4)
at /usr/src/php5-STABLE-200504271035/sapi/cli/php_cli.c:946
(gdb) frame 3
#3 0x082587a6 in execute (op_array=0x845b884)
at /usr/src/php5-STABLE-200504271035/Zend/zend_execute.c:1411
1411 if (EX(opline)->handler(&execute_data,
EX(opline), op_array TSRMLS_CC)) {
(gdb) print (char
*)(executor_globals.function_state_ptr->function)->common.function_name
$1 = 0x845b76c "singleton"
(gdb) print (char *)executor_globals.active_op_array->function_name
$2 = 0x845b76c "singleton"
------------------------------------------------------------------------
[2005-04-27 13:37:47] [EMAIL PROTECTED]
Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php
Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.
------------------------------------------------------------------------
[2005-04-27 13:12:30] cox at idecnet dot com
With php5-STABLE-200504271035:
PHP 5.0.5-dev (cli) (built: Apr 27 2005 13:08:58)
Copyright (c) 1997-2004 The PHP Group
Zend Engine v2.0.4-dev, Copyright (c) 1998-2004 Zend Technologies
The bug is still there.
Tomas V.V.Cox
------------------------------------------------------------------------
[2005-04-27 12:52:31] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5-STABLE-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php5.0-win32-latest.zip
------------------------------------------------------------------------
[2005-04-27 12:44:58] cox at idecnet dot com
Description:
------------
Crash with singleton() and __destruct(), see below.
Tomas V.V.Cox
Reproduce code:
---------------
<?php
class crashme {
private static $instance = null;
public function __construct() {
self::$instance = $this;
}
public function __destruct() {
echo "i'm called\n";
}
public static function singleton() {
if (!isset(self::$instance)) {
self::$instance = new crashme();
}
return self::$instance;
}
}
crashme::singleton();
?>
Expected result:
----------------
i'm called
Actual result:
--------------
i'm called
i'm called
Segmentation fault (core dumped)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=32852&edit=1
