From: ThomasxHolder at compuserve dot de
Operating system: Solaris 9
PHP version: 5.2.1
PHP Bug Type: Reproducible crash
Bug description: segmentation fault
Description:
------------
We are running php-5.1.6 on solaris 5.9 (sparc64). Since php-5.2.0 all
attemts to update failed. A simple echo test works, but almost everything
else causes segmentation fault. "make test" stops in the very beginning
with "make: [test] Error 139 (ignored)".
Reproduce code:
---------------
$ cat test.php
<?php
echo str_replace("foo", "bar", "foofoo\n");
?>
$ gdb ../sapi/cli/php
GNU gdb 6.3
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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 "sparc-sun-solaris2.8"...
(gdb) set args test.php
(gdb) run
Starting program: /tmp/holder/php-5.2.1/sapi/cli/php test.php
*zval_ptr is null...
Program received signal SIGSEGV, Segmentation fault.
_zval_ptr_dtor (zval_ptr=0xffbfe634) at
/tmp/holder/php-5.2.1/Zend/zend_execute_API.c:416
416 (*zval_ptr)->refcount--;
(gdb) backtrace
#0 _zval_ptr_dtor (zval_ptr=0xffbfe634) at
/tmp/holder/php-5.2.1/Zend/zend_execute_API.c:416
#1 0x00189b3c in zend_do_fcall_common_helper_SPEC
(execute_data=0xffbfe6c8) at zend_execute.h:155
#2 0x00187c40 in execute (op_array=0x2d7da8) at zend_vm_execute.h:92
#3 0x0016c390 in zend_execute_scripts (type=8, retval=Variable "retval"
is not available.
) at /tmp/holder/php-5.2.1/Zend/zend.c:1135
#4 0x0012d330 in php_execute_script (primary_file=0xffbfedf0) at
/tmp/holder/php-5.2.1/main/main.c:1784
#5 0x001ff870 in main (argc=2, argv=0xffbfee9c) at
/tmp/holder/php-5.2.1/sapi/cli/php_cli.c:1114
(gdb) quit
I inserted
if ((*zval_ptr) == NULL) {
printf("*zval_ptr is null...\n");
}
into Zend/zend_execute_API.c, for that the error occurs in line 416 and
not in line 412
Actual result:
--------------
Segmentation fault
--
Edit bug report at http://bugs.php.net/?id=40565&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40565&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40565&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40565&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40565&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40565&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40565&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40565&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40565&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40565&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40565&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40565&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40565&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40565&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40565&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40565&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40565&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40565&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40565&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40565&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40565&r=mysqlcfg
