From:
Operating system: Mac OS X 10.7
PHP version: trunk-SVN-2012-01-01 (SVN)
Package: Reproducible crash
Bug Type: Bug
Bug description:Segmentation fault when trying to die() in
SessionHandler::write()
Description:
------------
The apache or the CLI reports an segmentation fault while trying to die()
or to exit() a script in the write method of a class which extends the
SessionHandler class.
Test script:
---------------
<?php
class session_handler extends SessionHandler
{
function close () {return true;}
function destroy ($a) {return true;}
function open ($a,$b) {return true;}
function gc ($a) {return true;}
function read ($a) {return "";}
function write ($a,$b) {die();}
}
session_set_save_handler(new session_handler);
session_start();
session_write_close(); # apache segfaults
print "never appears?";
Actual result:
--------------
Apache/cli segfaults
Backtrace:
#0 0x000000010261de30 in zval_delref_p [inlined] () at
/Users/.../php-src-trunk-20120101/Zend/zend.h:82
#1 0x000000010261de30 in i_zval_ptr_dtor [inlined] () at
/Users/.../php-src-trunk-20120101/Zend/zend_execute.h:82
#2 0x000000010261de30 in zend_vm_stack_clear_multiple [inlined] () at
/Users/.../php-src-trunk-20120101/Zend/zend_execute.h:339
#3 0x000000010261de30 in zend_do_fcall_common_helper_SPEC
(execute_data=0x109a170d8) at zend_execute.c:736
#4 0x000000010262720e in ZEND_DO_FCALL_SPEC_CONST_HANDLER
(execute_data=0x109a170d8) at zend_vm_execute.h:2215
#5 0x000000010261aec2 in execute (op_array=0x109a51d98) at
zend_vm_execute.h:410
#6 0x00000001025c731b in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at zend.c:1272
#7 0x0000000102509153 in php_execute_script (primary_file=0x7fff6198ab60)
at main.c:2476
#8 0x000000010279d153 in do_cli (argc=2, argv=0x7fff6198ae18) at
php_cli.c:983
#9 0x000000010279ee95 in main (argc=2, argv=0x7fff6198ae18) at
php_cli.c:1356
--
Edit bug report at https://bugs.php.net/bug.php?id=60634&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60634&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60634&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60634&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60634&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60634&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60634&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60634&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60634&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60634&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60634&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60634&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60634&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60634&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60634&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60634&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60634&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60634&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60634&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60634&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60634&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60634&r=mysqlcfg
