ID:               39756
 User updated by:  tobias dot barth at web-arts dot com
 Reported By:      tobias dot barth at web-arts dot com
-Status:           Feedback
+Status:           Open
 Bug Type:         ODBC related
 Operating System: SuSE Linux 10.1
 PHP Version:      4.4.4
 New Comment:

okay, I will create a test script. in the meantime - perhaps this trace
could help?

---Type <return> to continue, or q <return> to quit---
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47707950089888 (LWP 29782)]
_efree (ptr=0x640000003c) at
/usr/src/php4-STABLE-200612061330/Zend/zend_alloc.c:256
256             CALCULATE_REAL_SIZE_AND_CACHE_INDEX(p->size);
(gdb) bt
#0  _efree (ptr=0x640000003c) at
/usr/src/php4-STABLE-200612061330/Zend/zend_alloc.c:256
#1  0x00002b63e17b0463 in _free_odbc_result (rsrc=<value optimized
out>) at /usr/src/php4-STABLE-200612061330/ext/odbc/php_odbc.c:173
#2  0x00002b63e1869efe in list_entry_destructor (ptr=<value optimized
out>) at /usr/src/php4-STABLE-200612061330/Zend/zend_list.c:177
#3  0x00002b63e186983a in zend_hash_del_key_or_index
(ht=0x2b63e19faaa8, arKey=0x0, nKeyLength=0, h=12, flag=<value
optimized out>)
    at /usr/src/php4-STABLE-200612061330/Zend/zend_hash.c:529
#4  0x00002b63e186a107 in _zend_list_delete (id=<value optimized out>)
at /usr/src/php4-STABLE-200612061330/Zend/zend_list.c:56
#5  0x00002b63e1870c08 in zend_assign_to_variable
(result=0x555555c63288, op1=<value optimized out>, op2=0x555555c632c8,
value=0x555555bfea08,
    type=0, Ts=0x7fffccb7aa00) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:483
#6  0x00002b63e187677c in execute (op_array=0x555555c04f38) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1393
#7  0x00002b63e18782a9 in execute (op_array=0x555555b651c0) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:2278
#8  0x00002b63e1876249 in execute (op_array=0x555555b256c8) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1725
#9  0x00002b63e18782a9 in execute (op_array=0x555555b20ef8) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:2278
#10 0x00002b63e1862a9a in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /usr/src/php4-STABLE-200612061330/Zend/zend.c:935
#11 0x00002b63e18344b7 in php_execute_script
(primary_file=0x7fffccb995d0) at
/usr/src/php4-STABLE-200612061330/main/main.c:1752
#12 0x00002b63e188083d in php_handler (r=0x555555b0d0a8) at
/usr/src/php4-STABLE-200612061330/sapi/apache2handler/sapi_apache2.c:581
#13 0x000055555558c6ba in ap_run_handler () from
/usr/sbin/httpd2-prefork
#14 0x000055555558faa2 in ap_invoke_handler () from
/usr/sbin/httpd2-prefork
#15 0x000055555559a1c8 in ap_process_request () from
/usr/sbin/httpd2-prefork
#16 0x0000555555597409 in ap_register_input_filter () from
/usr/sbin/httpd2-prefork
#17 0x0000555555593772 in ap_run_process_connection () from
/usr/sbin/httpd2-prefork
#18 0x000055555559dc09 in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#19 0x000055555559de0e in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#20 0x000055555559e911 in ap_mpm_run () from /usr/sbin/httpd2-prefork
#21 0x0000555555579cb8 in main () from /usr/sbin/httpd2-prefork
(gdb) quit


Previous Comments:
------------------------------------------------------------------------

[2006-12-06 17:36:33] [EMAIL PROTECTED]

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.

I believe you don't need a database to reproduce the last one.

------------------------------------------------------------------------

[2006-12-06 17:29:41] tobias dot barth at web-arts dot com

The first call to the php script now finished without crash, but the
next one made the folloing back trace:

---Type <return> to continue, or q <return> to quit---
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47766558578336 (LWP 14425)]
virtual_file_ex (state=0x7fff27625060, path=0x7fff27623010
"/home/votum/www/admin/pressestimmen.cfg", verify_path=0,
use_realpath=1)
    at /usr/src/php4-STABLE-200612061330/TSRM/tsrm_virtual_cwd.c:380
380                     state->cwd[copy_amount] = '\0';
(gdb) bt
#0  virtual_file_ex (state=0x7fff27625060, path=0x7fff27623010
"/home/votum/www/admin/pressestimmen.cfg", verify_path=0,
use_realpath=1)
    at /usr/src/php4-STABLE-200612061330/TSRM/tsrm_virtual_cwd.c:380
#1  0x00002b7186da34a8 in expand_filepath (filepath=0x555555b27ab8
"pressestimmen.cfg", real_path=0x0)
    at /usr/src/php4-STABLE-200612061330/main/fopen_wrappers.c:525
#2  0x00002b7186dad262 in _php_stream_fopen (filename=0x555555b27ab8
"pressestimmen.cfg", mode=0x555555b8bbf8 "r", opened_path=0x0,
options=4)
    at /usr/src/php4-STABLE-200612061330/main/streams.c:1968
#3  0x00002b7186dacde5 in _php_stream_open_wrapper_ex
(path=0x555555b27ab8 "pressestimmen.cfg", mode=0x555555b8bbf8 "r",
options=4,
    opened_path=0x0, context=0x0) at
/usr/src/php4-STABLE-200612061330/main/streams.c:2696
#4  0x00002b7186d47e75 in php_if_fopen (ht=<value optimized out>,
return_value=0x555555c028f8, this_ptr=<value optimized out>,
    return_value_used=<value optimized out>) at
/usr/src/php4-STABLE-200612061330/ext/standard/file.c:1148
#5  0x00002b7186de51ce in execute (op_array=0x555555b72c50) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1681
#6  0x00002b7186ddf249 in execute (op_array=0x555555b75ac0) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1725
#7  0x00002b7186ddf249 in execute (op_array=0x555555be7118) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1725
#8  0x00002b7186de12a9 in execute (op_array=0x555555b22fd8) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:2278
#9  0x00002b7186dcba9a in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /usr/src/php4-STABLE-200612061330/Zend/zend.c:935
#10 0x00002b7186d9d4b7 in php_execute_script
(primary_file=0x7fff27632060) at
/usr/src/php4-STABLE-200612061330/main/main.c:1752
#11 0x00002b7186de983d in php_handler (r=0x555555b13a58) at
/usr/src/php4-STABLE-200612061330/sapi/apache2handler/sapi_apache2.c:581
#12 0x000055555558c6ba in ap_run_handler () from
/usr/sbin/httpd2-prefork
#13 0x000055555558faa2 in ap_invoke_handler () from
/usr/sbin/httpd2-prefork
#14 0x000055555559a1c8 in ap_process_request () from
/usr/sbin/httpd2-prefork
#15 0x0000555555597409 in ap_register_input_filter () from
/usr/sbin/httpd2-prefork
#16 0x0000555555593772 in ap_run_process_connection () from
/usr/sbin/httpd2-prefork
#17 0x000055555559dc09 in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#18 0x000055555559de0e in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#19 0x000055555559e911 in ap_mpm_run () from /usr/sbin/httpd2-prefork
#20 0x0000555555579cb8 in main () from /usr/sbin/httpd2-prefork

------------------------------------------------------------------------

[2006-12-06 17:20:02] [EMAIL PROTECTED]

Ok, I updated the patch. Try again please.

------------------------------------------------------------------------

[2006-12-06 17:12:44] tobias dot barth at web-arts dot com

tried that patch and got again a crash, but with another backtrace:


---Type <return> to continue, or q <return> to quit---
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47383497090720 (LWP 31475)]
0x00002b18540a0122 in memcpy () from /lib64/libc.so.6
(gdb) bt
#0  0x00002b18540a0122 in memcpy () from /lib64/libc.so.6
#1  0x0000555555c125e8 in ?? ()
#2  0x00002b18569d5132 in _estrndup (s=0x0, length=62) at
/usr/src/php4-STABLE-200612061330/Zend/zend_alloc.c:409
#3  0x00002b1856934947 in zif_odbc_fetch_into (ht=<value optimized
out>, return_value=0x555555c12388, this_ptr=<value optimized out>,
    return_value_used=<value optimized out>) at
/usr/src/php4-STABLE-200612061330/ext/odbc/php_odbc.c:1618
#4  0x00002b18569fe16e in execute (op_array=0x555555c07dd8) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1681
#5  0x00002b18569fa249 in execute (op_array=0x555555b6e780) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:2278
#6  0x00002b18569f81e9 in execute (op_array=0x555555b30bc8) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:1725
#7  0x00002b18569fa249 in execute (op_array=0x555555b2c468) at
/usr/src/php4-STABLE-200612061330/Zend/zend_execute.c:2278
#8  0x00002b18569e4a3a in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /usr/src/php4-STABLE-200612061330/Zend/zend.c:935
#9  0x00002b18569b6457 in php_execute_script
(primary_file=0x7fff57a19440) at
/usr/src/php4-STABLE-200612061330/main/main.c:1752
#10 0x00002b1856a027dd in php_handler (r=0x555555b114d8) at
/usr/src/php4-STABLE-200612061330/sapi/apache2handler/sapi_apache2.c:581
#11 0x000055555558c6ba in ap_run_handler () from
/usr/sbin/httpd2-prefork
#12 0x000055555558faa2 in ap_invoke_handler () from
/usr/sbin/httpd2-prefork
#13 0x000055555559a1c8 in ap_process_request () from
/usr/sbin/httpd2-prefork
#14 0x0000555555597409 in ap_register_input_filter () from
/usr/sbin/httpd2-prefork
#15 0x0000555555593772 in ap_run_process_connection () from
/usr/sbin/httpd2-prefork
#16 0x000055555559dc09 in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#17 0x000055555559de0e in ap_graceful_stop_signalled () from
/usr/sbin/httpd2-prefork
#18 0x000055555559e911 in ap_mpm_run () from /usr/sbin/httpd2-prefork
#19 0x0000555555579cb8 in main () from /usr/sbin/httpd2-prefork
(gdb)

------------------------------------------------------------------------

[2006-12-06 17:04:08] [EMAIL PROTECTED]

Please try this patch:
http://tony2001.phpclub.net/dev/tmp/bug39756.diff

------------------------------------------------------------------------

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
    http://bugs.php.net/39756

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Edit this bug report at http://bugs.php.net/?id=39756&edit=1

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