ID: 33201
User updated by: skissane at iips dot mq dot edu dot au
Reported By: skissane at iips dot mq dot edu dot au
-Status: Feedback
+Status: Open
Bug Type: MSSQL related
Operating System: Linux
PHP Version: 5.0.4
New Comment:
I have tried with latest snapshot.
When PHP is complied with --enable-debug, it works fine, although it
complains with messages like the following:
---------------------------------------
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/ext/mssql/php_mssql.c(193)
: Block 0x08304430 status:
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/Zend/zend_variables.c(45)
: Actual location (location was relayed)
Beginning: OK (allocated on
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/ext/mssql/php_mssql.c:881,
19 bytes)
End: Overflown (magic=0x2A8FCC00 instead of 0x2A8FCC84)
1 byte(s) overflown
However, when PHP is not compiled with --enable-debug, I get a SEGV
again, with the following backtrace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 31750)]
0x40283bef in _int_malloc () from /lib/i686/libc.so.6
(gdb) bt
#0 0x40283bef in _int_malloc () from /lib/i686/libc.so.6
#1 0x402852ac in malloc () from /lib/i686/libc.so.6
#2 0x0814fe48 in _emalloc (size=1077090752) at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/Zend/zend_alloc.c:182
#3 0x08085e76 in php_mssql_get_column_content_with_type
(mssql_ptr=0x8274cc4, offset=1077090752, result=0x82876dc,
column_type=1077088260)
at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/ext/mssql/php_mssql.c:881
#4 0x08086707 in _mssql_fetch_batch (mssql_ptr=0x8274cc4,
result=0x826fa7c, retvalue=-1)
at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/ext/mssql/php_mssql.c:1108
#5 0x08086b86 in zif_mssql_query (ht=33, return_value=0x8274f34,
this_ptr=0x0, return_value_used=1)
at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/ext/mssql/php_mssql.c:1229
#6 0x0817daae in zend_do_fcall_common_helper (execute_data=0xbfffd4b0,
opline=0x8273e60, op_array=0x826f9ec)
at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/Zend/zend_execute.c:2747
#7 0x0817b036 in execute (op_array=0x826f9ec) at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/Zend/zend_execute.c:1417
#8 0x08160c1b in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/Zend/zend.c:1084
#9 0x08133a2b in php_execute_script (primary_file=0xbffff870) at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/main/main.c:1646
#10 0x081844d8 in main (argc=2, argv=0xbffff8f4) at
/mnt/golum-c/LinuxOverflow/php5-STABLE-200506010035/sapi/cli/php_cli.c:946
#11 0x40236912 in __libc_start_main () from /lib/i686/libc.so.6
Previous Comments:
------------------------------------------------------------------------
[2005-05-31 14:17:28] [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
------------------------------------------------------------------------
[2005-05-31 13:53:08] skissane at iips dot mq dot edu dot au
Description:
------------
Segmentation fault.
Reproduce code:
---------------
<?
$q = mssql_connect("<server>","<username>","<password>");
$i = mssql_query("SELECT * FROM MSSQLTrace_99",$q);
while (mssql_fetch_row($i) !== FALSE);
Where the MSSQLTrace_99 table is created by the following MSSQL script
(a bit too big for a bug database):
http://www.iips.mq.edu.au/php_mssql_bug.txt
Expected result:
----------------
No output.
Actual result:
--------------
Backtrace:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 16384 (LWP 29878)]
0x40440bef in _int_malloc () from /lib/i686/libc.so.6
(gdb) bt
#0 0x40440bef in _int_malloc () from /lib/i686/libc.so.6
#1 0x404422ac in malloc () from /lib/i686/libc.so.6
#2 0x0815ac58 in _emalloc (size=1078913472) at
/home/skissane/php-5.0.4/Zend/zend_alloc.c:182
#3 0x0809151e in php_mssql_get_column_content_with_type
(mssql_ptr=0x827079c, offset=1078913472, result=0x828319c,
column_type=1078910980)
at /home/skissane/php-5.0.4/ext/mssql/php_mssql.c:877
#4 0x08091daf in _mssql_fetch_batch (mssql_ptr=0x827079c,
result=0x826b5cc, retvalue=-1) at
/home/skissane/php-5.0.4/ext/mssql/php_mssql.c:1104
#5 0x0809222e in zif_mssql_query (ht=33, return_value=0x8270a54,
this_ptr=0x0, return_value_used=1) at
/home/skissane/php-5.0.4/ext/mssql/php_mssql.c:1225
#6 0x081882ce in zend_do_fcall_common_helper (execute_data=0xbfffd510,
opline=0x826f980, op_array=0x826b53c)
at /home/skissane/php-5.0.4/Zend/zend_execute.c:2727
#7 0x081858ca in execute (op_array=0x826b53c) at
/home/skissane/php-5.0.4/Zend/zend_execute.c:1406
#8 0x0816b79f in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /home/skissane/php-5.0.4/Zend/zend.c:1069
#9 0x0813eb73 in php_execute_script (primary_file=0xbffff8d0) at
/home/skissane/php-5.0.4/main/main.c:1632
#10 0x0818ebe8 in main (argc=2, argv=0xbffff954) at
/home/skissane/php-5.0.4/sapi/cli/php_cli.c:946
#11 0x403f3912 in __libc_start_main () from /lib/i686/libc.so.6
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=33201&edit=1
