Edit report at https://bugs.php.net/bug.php?id=63741&edit=1
ID: 63741
User updated by: bobwei9 at hotmail dot com
Reported by: bobwei9 at hotmail dot com
Summary: Crash when autoloading from spl
Status: Open
Type: Bug
Package: SPL related
Operating System: Mac OS X Mountain Lion
PHP Version: master-Git-2012-12-11 (Git)
Block user comment: N
Private report: N
New Comment:
<?php
if (isset($autoload))
{
class ClassToLoad
{
static function func ()
{
print "OK!\n";
}
}
return;
}
class autoloader
{
static function autoload($classname)
{
print "autoloaded\n";
$autoload = true;
include __FILE__;
}
}
spl_autoload_register(["autoloader", "autoload"]);
function main()
{
ClassToLoad::func();
}
main();
=>
Segmentation fault: 11 (core dumped)
Segfault if called from a function (â in a class)
Can you reproduce this? Or do you need more info?
Previous Comments:
------------------------------------------------------------------------
[2012-12-12 10:16:14] larue...@php.net
yes, it's needed :), thanks
------------------------------------------------------------------------
[2012-12-12 09:15:58] bobwei9 at hotmail dot com
In the base directory of the install. An autoloader defined previously with
spl_autoload_register is called in the GlobalFunctions.php (see the zbacktrace
in
the opening post) and then crashes.
In the evening I'll try to create a smaller reproduce script if needed.
------------------------------------------------------------------------
[2012-12-12 04:15:47] larue...@php.net
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.
Please avoid embedding huge scripts into the report.
where the index.php is?
------------------------------------------------------------------------
[2012-12-11 15:26:29] bobwei9 at hotmail dot com
Description:
------------
When calling the index.php of a fresh MediaWiki (Version 1.18.0) install, PHP
segfaults. I know, 1.18.0 is an old version, but it shouldn't crash .
Test script:
---------------
normal MediaWiki 1.18.0 install
Expected result:
----------------
No segmentation fault...
Actual result:
--------------
wiki root# gdb --args php index.php
GNU gdb 6.3.50-20050815 (Apple version gdb-1821) (Fri Jun 29 16:14:03 UTC 2012)
Copyright 2004 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 "x86_64-apple-darwin"...Reading symbols for shared
libraries ............
........ done
(gdb) run
Starting program: /usr/bin/php index.php
Reading symbols for shared libraries
+++++++++++++++++++++.......................................................................................................................................
done
Reading symbols for shared libraries . done
PHP Warning: PHP Startup: Unable to load dynamic library
'/usr/lib/php/extensions/debug-zts-20121204/apc.so' -
dlopen(/usr/lib/php/extensions/debug-zts-20121204/apc.so, 9): Symbol not found:
_apc_globals_id
Referenced from: /usr/lib/php/extensions/debug-zts-20121204/apc.so
Expected in: flat namespace
in /usr/lib/php/extensions/debug-zts-20121204/apc.so in Unknown on line 0
<font size=3px color=#ff0000>
Warning: PHP Startup: Unable to load dynamic library
'/usr/lib/php/extensions/debug-zts-20121204/apc.so' -
dlopen(/usr/lib/php/extensions/debug-zts-20121204/apc.so, 9): Symbol not found:
_apc_globals_id
Referenced from: /usr/lib/php/extensions/debug-zts-20121204/apc.so
Expected in: flat namespace
in /usr/lib/php/extensions/debug-zts-20121204/apc.so in Unknown on line 0
Reading symbols for shared libraries . done
PHP Warning: PHP Startup: pthreads: Unable to initialize module
Module compiled with module API=20121113
PHP compiled with module API=20121204
These options need to match
in Unknown on line 0
</font><font size=3px color=#ff0000>
Warning: PHP Startup: pthreads: Unable to initialize module
Module compiled with module API=20121113
PHP compiled with module API=20121204
These options need to match
in Unknown on line 0
</font>PHP Notice: Undefined index: HTTP_HOST in /[...]/wiki/LocalSettings.php
on line 44
<font size=3px color=#ff0000>
Notice: Undefined index: HTTP_HOST in /[...]/wiki/LocalSettings.php on line 44
</font>PHP Notice: Undefined index: REQUEST_METHOD in
/[...]/wiki/includes/Setup.php on line 387
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x00000007000001f8
0x00000001008fb936 in instanceof_function_ex (instance_ce=0x700000008,
ce=0x10264a818, interfaces_only=0 '\0', tsrm_ls=0x101710ed0) at
zend_operators.c:1720
1720 for (i=0; i<instance_ce->num_interfaces; i++) {
(gdb) bt
#0 0x00000001008fb936 in instanceof_function_ex (instance_ce=0x700000008,
ce=0x10264a818, interfaces_only=0 '\0', tsrm_ls=0x101710ed0) at
zend_operators.c:1720
#1 0x00000001008fb9e5 in instanceof_function (instance_ce=0x700000008,
ce=0x10264a818, tsrm_ls=0x101710ed0) at zend_operators.c:1740
#2 0x00000001008fb919 in instanceof_function_ex (instance_ce=0x1025b8400,
ce=0x10264a818, interfaces_only=0 '\0', tsrm_ls=0x101710ed0) at
zend_operators.c:1721
#3 0x00000001008fb9e5 in instanceof_function (instance_ce=0x1025b8400,
ce=0x10264a818, tsrm_ls=0x101710ed0) at zend_operators.c:1740
#4 0x0000000100934457 in zend_call_method (object_pp=0x0, obj_ce=0x10264a818,
fn_proxy=0x1026735d0, function_name=0x102673558 "autoloader::autoload",
function_name_len=21, retval_ptr_ptr=0x7fff5fbfd698, param_count=1,
arg1=0x1029fe810, arg2=0x0, tsrm_ls=0x101710ed0) at zend_interfaces.c:89
#5 0x00000001005a6128 in zif_spl_autoload_call (ht=1,
return_value=0x1029fe890, return_value_ptr=0x7fff5fbfdf48, this_ptr=0x0,
return_value_used=1, tsrm_ls=0x101710ed0) at php_spl.c:436
#6 0x00000001008e7023 in zend_call_function (fci=0x7fff5fbfdee8,
fci_cache=0x7fff5fbfdec0, tsrm_ls=0x101710ed0) at zend_execute_API.c:979
#7 0x00000001008e814a in zend_lookup_class_ex (name=0x1029f2670 "Hooks",
name_length=5, key=0x1029f2278, use_autoload=1, ce=0x7fff5fbfdfe0,
tsrm_ls=0x101710ed0) at zend_execute_API.c:1129
#8 0x00000001008e9f2e in zend_fetch_class_by_name (class_name=0x1029f2670
"Hooks", class_name_len=5, key=0x1029f2278, fetch_type=0, tsrm_ls=0x101710ed0)
at zend_execute_API.c:1609
#9 0x0000000100978c23 in ZEND_INIT_STATIC_METHOD_CALL_SPEC_CONST_CONST_HANDLER
(execute_data=0x102207280, tsrm_ls=0x101710ed0) at zend_vm_execute.h:3550
#10 0x0000000100963fe2 in execute_ex (execute_data=0x102207280,
tsrm_ls=0x101710ed0) at zend_vm_execute.h:356
#11 0x00000001009650fc in zend_execute (op_array=0x102239b30,
tsrm_ls=0x101710ed0) at zend_vm_execute.h:381
#12 0x0000000100905463 in zend_execute_scripts (type=8, tsrm_ls=0x101710ed0,
retval=0x0, file_count=3) at zend.c:1309
#13 0x00000001008215ac in php_execute_script (primary_file=0x7fff5fbff798,
tsrm_ls=0x101710ed0) at main.c:2468
#14 0x0000000100b2e98f in do_cli (argc=2, argv=0x7fff5fbffa88,
tsrm_ls=0x101710ed0) at php_cli.c:988
#15 0x0000000100b30a3e in main (argc=2, argv=0x7fff5fbffa88) at php_cli.c:1364
(gdb) source /var/root/php-src/.gdbinit
(gdb) zbacktrace
[0x7fff5fbfd928] spl_autoload_call("Hooks")
[0x102207280] wfRunHooks() /[...]/wiki/includes/GlobalFunctions.php:3631
[0x102207108] wfRunHooks("Debug", array(2)[0x1029fe790])
/[...]/wiki/includes/GlobalFunctions.php:711
[0x102206810]
wfDebug("Start\40request\12\12\40index.php\12HTTP\40HEADERS:\12\12")
/[...]/wiki/includes/Setup.php:396
[0x102202e50] ??? /[...]/wiki/includes/WebStart.php:157
[0x102202388] ??? /[...]/wiki/index.php:53
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--
Edit this bug report at https://bugs.php.net/bug.php?id=63741&edit=1
