#27828 [Fbk-Opn]: sybase_free_result crashes
ID: 27828
User updated by: deanb at gbtn dot net
Reported By: deanb at gbtn dot net
-Status: Feedback
+Status: Open
Bug Type: Sybase-ct (ctlib) related
Operating System: Digital Unix 4.0F
PHP Version: 4.3.5
New Comment:
Nope, same crash with php4-STABLE-200404021630.
Previous Comments:
[2004-04-02 06:12:19] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php4-STABLE-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
[2004-04-02 04:21:50] tvoigt at informatik dot tu-cottbus dot de
Hi there!
The bug ist reproducible here on Debian Woody + apache-1.3.29/php =
4.3.4RC3, too.
It was most probably introduced while fixing
http://bugs.php.net/bug.php?id=26407: sybase_free_result() works
properly up to php-4.3.4RC2, but not with a patched 4.3.4RC2 to solve
bug #26407 (that patch then made it into 4.3.4RC3).
Well, I'm sorry for not testing sybase_free_result() afterwards, never
used it before...
Best regards,
Thomas
[2004-04-01 15:59:18] deanb at gbtn dot net
Description:
If I use sybase_free_result() in a script, then php crashes. The exact
same code works fine in php 4.3.4.
./configure --with-sybase-ct=${SYBASE}
--enable-track-vars
--without-mysql
--with-apache=../apache_1.3.29
--disable-dba
--enable-session
Reproduce code:
---
?php
$db = sybase_connect(server, user, pass);
$res = sybase_query(select name from sysdatabases, $db);
while ($data = sybase_fetch_array($res)) {
print db: $data[0]\n;
}
sybase_free_result($res);
sybase_close($db);
?
Expected result:
a list of databases with no crashes
Actual result:
--
php s.php
db: master
db: model
db: sybsystemprocs
db: tempdb
Segmentation fault (core dumped)
dbx php core
dbx version 3.11.10
Type 'help' for help.
Core file created by program php
signal Segmentation fault at [_efree:241 ,0x12013e7c8]
CALCULATE_REAL_SIZE_AND_CACHE_INDEX(p-size);
(dbx) where
0 _efree(ptr = 0x52667250203a6264)
[/app/apps/web/php-4.3.5/Zend/zend_alloc.c:241, 0x12013e7c8]
1 php_sybase_finish_results(result = 0x1400cd5b8)
[/app/apps/web/php-4.3.5/ext/sybase_ct/php_sybase_ct.c:1011,
0x1200e766c]
2 zif_sybase_free_result(ht = 1, return_value = 0x1400d8298,
this_ptr = (nil), return_value_used = 0)
[/app/apps/web/php-4.3.5/ext/sybase_ct/php_sybase_ct.c:1602,
0x1200e8f20]
3 execute(op_array = 0x1400c52d8)
[/app/apps/web/php-4.3.5/Zend/zend_execute.c:1621, 0x12016fdf4]
4 zend_execute_scripts(type = 8, retval = (nil), file_count = 3)
[/app/apps/web/php-4.3.5/Zend/zend.c:889, 0x120155be0]
5 php_execute_script(primary_file = 0x11fffec10)
[/app/apps/web/php-4.3.5/main/main.c:1731, 0x120116d84]
6 main(argc = 2, argv = 0x11fffef28)
[/app/apps/web/php-4.3.5/sapi/cli/php_cli.c:822, 0x1201722e4]
(dbx) up
php_sybase_finish_results:1011 efree(result-tmp_buffer[i]);
(dbx) up
zif_sybase_free_result:1602 php_sybase_finish_results(result);
--
Edit this bug report at http://bugs.php.net/?id=27828edit=1
#27828 [NEW]: sybase_free_result crashes
From: deanb at gbtn dot net
Operating system: Digital Unix 4.0F
PHP version: 4.3.5
PHP Bug Type: Sybase-ct (ctlib) related
Bug description: sybase_free_result crashes
Description:
If I use sybase_free_result() in a script, then php crashes. The exact
same code works fine in php 4.3.4.
./configure --with-sybase-ct=${SYBASE}
--enable-track-vars
--without-mysql
--with-apache=../apache_1.3.29
--disable-dba
--enable-session
Reproduce code:
---
?php
$db = sybase_connect(server, user, pass);
$res = sybase_query(select name from sysdatabases, $db);
while ($data = sybase_fetch_array($res)) {
print db: $data[0]\n;
}
sybase_free_result($res);
sybase_close($db);
?
Expected result:
a list of databases with no crashes
Actual result:
--
php s.php
db: master
db: model
db: sybsystemprocs
db: tempdb
Segmentation fault (core dumped)
dbx php core
dbx version 3.11.10
Type 'help' for help.
Core file created by program php
signal Segmentation fault at [_efree:241 ,0x12013e7c8]
CALCULATE_REAL_SIZE_AND_CACHE_INDEX(p-size);
(dbx) where
0 _efree(ptr = 0x52667250203a6264)
[/app/apps/web/php-4.3.5/Zend/zend_alloc.c:241, 0x12013e7c8]
1 php_sybase_finish_results(result = 0x1400cd5b8)
[/app/apps/web/php-4.3.5/ext/sybase_ct/php_sybase_ct.c:1011,
0x1200e766c]
2 zif_sybase_free_result(ht = 1, return_value = 0x1400d8298, this_ptr =
(nil), return_value_used = 0)
[/app/apps/web/php-4.3.5/ext/sybase_ct/php_sybase_ct.c:1602,
0x1200e8f20]
3 execute(op_array = 0x1400c52d8)
[/app/apps/web/php-4.3.5/Zend/zend_execute.c:1621, 0x12016fdf4]
4 zend_execute_scripts(type = 8, retval = (nil), file_count = 3)
[/app/apps/web/php-4.3.5/Zend/zend.c:889, 0x120155be0]
5 php_execute_script(primary_file = 0x11fffec10)
[/app/apps/web/php-4.3.5/main/main.c:1731, 0x120116d84]
6 main(argc = 2, argv = 0x11fffef28)
[/app/apps/web/php-4.3.5/sapi/cli/php_cli.c:822, 0x1201722e4]
(dbx) up
php_sybase_finish_results:1011 efree(result-tmp_buffer[i]);
(dbx) up
zif_sybase_free_result:1602 php_sybase_finish_results(result);
--
Edit bug report at http://bugs.php.net/?id=27828edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=27828r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=27828r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=27828r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=27828r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=27828r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=27828r=needscript
Try newer version: http://bugs.php.net/fix.php?id=27828r=oldversion
Not developer issue:http://bugs.php.net/fix.php?id=27828r=support
Expected behavior: http://bugs.php.net/fix.php?id=27828r=notwrong
Not enough info:http://bugs.php.net/fix.php?id=27828r=notenoughinfo
Submitted twice:http://bugs.php.net/fix.php?id=27828r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=27828r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27828r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=27828r=dst
IIS Stability: http://bugs.php.net/fix.php?id=27828r=isapi
Install GNU Sed:http://bugs.php.net/fix.php?id=27828r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27828r=float
