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Bug #30196 SEGFAULT with apache2 on shutdown-child
Submitted: 2004-09-22 18:27 UTC Modified: 2005-01-12 16:17 UTC
Votes:2
Avg. Score:5.0 ± 0.0
Reproduced:2 of 2 (100.0%)
Same Version:1 (50.0%)
Same OS:1 (50.0%)
From: j dot henge-ernst at interexa dot de Assigned:
Status: Closed Package: OCI8 related
PHP Version: 5.0 cvs from 20041027 OS: linux
Private report: No CVE-ID: None
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 [2004-09-22 18:27 UTC] j dot henge-ernst at interexa dot de 
Description:
------------
PHP 5.0.1 is segfaulting after every request has been processed with our application. Disabling all register_shutdown_functions or custom-error handlers didn't help. Simple pages as phpinfo just work fine.

The commandline is not seg-faulting

Using SuSE 9.1 with apache2handler and PHP 5.0.1 self-compiled. Also tried the current CVS, but that also fails on the same point

If you need additional information to track that down, ask

Actual result:
--------------
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1076980544 (LWP 31715)]
0x4061043f in zend_hash_apply (ht=Variable "ht" is not available.
) at /home/hernst/src/php-5.0.1/Zend/zend_hash.c:664
664                     if (apply_func(p->pData TSRMLS_CC)) {
(gdb) where
#0  0x4061043f in zend_hash_apply (ht=Variable "ht" is not available.
) at /home/hernst/src/php-5.0.1/Zend/zend_hash.c:664
#1  0x40601a80 in shutdown_executor () at /home/hernst/src/php-5.0.1/Zend/zend_execute_API.c:248
#2  0x40609a96 in zend_deactivate () at /home/hernst/src/php-5.0.1/Zend/zend.c:819
#3  0x405d2679 in php_request_shutdown (dummy=0x0) at /home/hernst/src/php-5.0.1/main/main.c:1212
#4  0x4063c82e in php_handler (r=0x826b1f0) at /home/hernst/src/php-5.0.1/sapi/apache2handler/sapi_apache2.c:435
#5  0x08069288 in ap_run_handler ()
#6  0x0000003b in ?? ()
#7  0x00000000 in ?? ()
#8  0x0809a36c in __JCR_LIST__ ()
#9  0x0826b1f0 in ?? ()
#10 0x0826b1f0 in ?? ()
#11 0xbfffd518 in ?? ()
#12 0x0806c8a7 in ap_invoke_handler ()

Using the CVS-version of 5.0
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1076980544 (LWP 29322)]
0x4061176f in zend_hash_apply (ht=Variable "ht" is not available.
) at /home/hernst/src/php-src/Zend/zend_hash.c:664
664                     if (apply_func(p->pData TSRMLS_CC)) {
(gdb) where
#0  0x4061176f in zend_hash_apply (ht=Variable "ht" is not available.
) at /home/hernst/src/php-src/Zend/zend_hash.c:664
#1  0x406024e0 in shutdown_executor () at /home/hernst/src/php-src/Zend/zend_execute_API.c:251
#2  0x4060a8c6 in zend_deactivate () at /home/hernst/src/php-src/Zend/zend.c:818
#3  0x405d3159 in php_request_shutdown (dummy=0x0) at /home/hernst/src/php-src/main/main.c:1212
#4  0x4063dd7e in php_handler (r=0x8265e10) at /home/hernst/src/php-src/sapi/apache2handler/sapi_apache2.c:435
#5  0x08069288 in ap_run_handler ()
#6  0x0000003b in ?? ()
#7  0x00000000 in ?? ()
#8  0x0809a36c in __JCR_LIST__ ()
#9  0x08265e10 in ?? ()
#10 0x08265e10 in ?? ()
#11 0xbfffd508 in ?? ()
#12 0x0806c8a7 in ap_invoke_handler ()
Previous frame inner to this frame (corrupt stack?)

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 [2004-09-22 19:27 UTC] j dot henge-ernst at interexa dot de 
Tracked down the error a little bit more. Seems to happen only  when using the oci8 module.

Using oracle 10g and oci8 as loadable module. Could also be the same as http://bugs.php.net/bug.php?id=26393
 [2004-10-12 16:57 UTC] tony2001@php.net 
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
 [2004-10-20 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 [2004-10-21 11:24 UTC] j dot henge-ernst at interexa dot de 
The segfault still occures, but not so reproduceable. When I have more time I will try to get a new backtrace and post that information.
 [2004-10-27 11:03 UTC] j dot henge-ernst at interexa dot de 
At the moment I got  reproducable crash. After restarting the webserver the problem vanished. Hope it helps to track down that nasy error.

Here is the backtrace:
#0  0x430dcc10 in kpufhndl0 () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#1  0x430dcbc8 in kpufhndl () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#2  0x4314cf9b in OCIHandleFree () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#3  0x42f0c396 in _oci_close_session (session=Variable "session" is not available.
) at /home/hernst/src/php-src/ext/oci8/oci8.c:3015
#4  0x4061387e in list_entry_destructor (ptr=Variable "ptr" is not available.
) at /home/hernst/src/php-src/Zend/zend_list.c:173
#5  0x40611d58 in zend_hash_del_key_or_index (ht=0x40693f54, arKey=0x0, nKeyLength=0, h=418, flag=1) at /home/hernst/src/php-src/Zend/zend_hash.c:490
#6  0x40613a23 in _zend_list_delete (id=Variable "id" is not available.
) at /home/hernst/src/php-src/Zend/zend_list.c:58
#7  0x42f0c763 in _oci_conn_list_dtor (connection=Variable "connection" is not available.
) at /home/hernst/src/php-src/ext/oci8/oci8.c:1021
#8  0x4061387e in list_entry_destructor (ptr=Variable "ptr" is not available.
) at /home/hernst/src/php-src/Zend/zend_list.c:173
#9  0x40611d58 in zend_hash_del_key_or_index (ht=0x40693f54, arKey=0x0, nKeyLength=0, h=419, flag=1) at /home/hernst/src/php-src/Zend/zend_hash.c:490
#10 0x40613a23 in _zend_list_delete (id=Variable "id" is not available.
) at /home/hernst/src/php-src/Zend/zend_list.c:58
#11 0x40609d10 in _zval_dtor (zvalue=Variable "zvalue" is not available.
) at /home/hernst/src/php-src/Zend/zend_variables.c:69
#12 0x406313ed in zend_assign_to_variable (result=Variable "result" is not available.
) at /home/hernst/src/php-src/Zend/zend_execute.c:640
#13 0x40635b55 in zend_assign_dim_handler (execute_data=0xbfff0410, opline=0x84d21e8, op_array=0x84cf470) at /home/hernst/src/php-src/Zend/zend_execute.c:2233
#14 0x4063d7fc in execute (op_array=0x84cf470) at /home/hernst/src/php-src/Zend/zend_execute.c:1400
#15 0x4288bdb9 in db_ () from /interexa/php/5.0.1/usr/share/extensions/no-debug-non-zts-20040412/ZendDebugger.so
#16 0x40633940 in zend_do_fcall_common_helper (execute_data=0xbfff1440, opline=0x8343c5c, op_array=0x8346ed8) at /home/hernst/src/php-src/Zend/zend_execute.c:2740
#17 0x40634279 in zend_do_fcall_by_name_handler (execute_data=0x0, opline=0x8343c5c, op_array=0x8346ed8) at /home/hernst/src/php-src/Zend/zend_execute.c:2825
#18 0x4063d7fc in execute (op_array=0x8346ed8) at /home/hernst/src/php-src/Zend/zend_execute.c:1400
#19 0x4288bdb9 in db_ () from /interexa/php/5.0.1/usr/share/extensions/no-debug-non-zts-20040412/ZendDebugger.so
#20 0x40633940 in zend_do_fcall_common_helper (execute_data=0xbfff27b0, opline=0x834b06c, op_array=0x8348060) at /home/hernst/src/php-src/Zend/zend_execute.c:2740
#21 0x4063406e in zend_do_fcall_handler (execute_data=Variable "execute_data" is not available.
) at /home/hernst/src/php-src/Zend/zend_execute.c:2843
#22 0x4063d7fc in execute (op_array=0x8348060) at /home/hernst/src/php-src/Zend/zend_execute.c:1400
#23 0x4288bdb9 in db_ () from /interexa/php/5.0.1/usr/share/extensions/no-debug-non-zts-20040412/ZendDebugger.so
#24 0x40633940 in zend_do_fcall_common_helper (execute_data=0xbfffc560, opline=0x43f5f88c, op_array=0x82d975c) at /home/hernst/src/php-src/Zend/zend_execute.c:2740
#25 0x40634279 in zend_do_fcall_by_name_handler (execute_data=0x0, opline=0x43f5f88c, op_array=0x82d975c) at /home/hernst/src/php-src/Zend/zend_execute.c:2825
#26 0x4063d7fc in execute (op_array=0x82d975c) at /home/hernst/src/php-src/Zend/zend_execute.c:1400
#27 0x4288bdb9 in db_ () from /interexa/php/5.0.1/usr/share/extensions/no-debug-non-zts-20040412/ZendDebugger.so
#28 0x40609fd9 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/hernst/src/php-src/Zend/zend.c:1060
#29 0x405d2891 in php_execute_script (primary_file=0xbfffe870) at /home/hernst/src/php-src/main/main.c:1629
#30 0x4063df4a in php_handler (r=0x82ca370) at /home/hernst/src/php-src/sapi/apache2handler/sapi_apache2.c:535
#31 0x08069258 in ap_run_handler ()
#32 0x0000003b in ?? ()
#33 0x00000000 in ?? ()
#34 0x0809a36c in __JCR_LIST__ ()
#35 0x082ca370 in ?? ()
#36 0x082ca370 in ?? ()
#37 0xbfffe9c8 in ?? ()
#38 0x0806c877 in ap_invoke_handler ()
Previous frame inner to this frame (corrupt stack?)
 [2004-10-27 11:09 UTC] tony2001@php.net 
Please, try _latest_ CVS snapshot. There were some changes after 2004-10-12.
 [2004-10-27 15:11 UTC] j dot henge-ernst at interexa dot de 
ok, updated, rebuild oci8.so and is still segfaulting. Here is the backtracke. Looks similar to my last post.

#0  0x4311dc10 in kpufhndl0 () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#1  0x4311dbc8 in kpufhndl () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#2  0x4318df9b in OCIHandleFree () from /opt/oracle/product/10.1.0/db_1/lib/libclntsh.so.10.1
#3  0x42f4d359 in _oci_close_session (session=Variable "session" is not available.
) at /home/hernst/src/php-src/ext/oci8/oci8.c:2997
#4  0x4061387e in list_entry_destructor (ptr=Variable "ptr" is not available.
) at /home/hernst/src/php-src/Zend/zend_list.c:173
#5  0x406117b9 in zend_hash_apply_deleter (ht=Variable "ht" is not available.
) at /home/hernst/src/php-src/Zend/zend_hash.c:574
#6  0x40611927 in zend_hash_graceful_reverse_destroy (ht=Variable "ht" is not available.
) at /home/hernst/src/php-src/Zend/zend_hash.c:640
#7  0x4061371c in zend_destroy_rsrc_list (ht=0x40693f54) at /home/hernst/src/php-src/Zend/zend_list.c:234
#8  0x4060249e in shutdown_executor () at /home/hernst/src/php-src/Zend/zend_execute_API.c:285
#9  0x4060aa06 in zend_deactivate () at /home/hernst/src/php-src/Zend/zend.c:818
#10 0x405d3399 in php_request_shutdown (dummy=0x0) at /home/hernst/src/php-src/main/main.c:1212
#11 0x4063debe in php_handler (r=0x828ea60) at /home/hernst/src/php-src/sapi/apache2handler/sapi_apache2.c:435
#12 0x08069258 in ap_run_handler ()
#13 0x0000003b in ?? ()
#14 0x00000000 in ?? ()
#15 0x0809a36c in __JCR_LIST__ ()
#16 0x0828ea60 in ?? ()
#17 0x0828ea60 in ?? ()
#18 0xbfffe418 in ?? ()
#19 0x0806c877 in ap_invoke_handler ()
Previous frame inner to this frame (corrupt stack?)
 [2004-10-31 04:12 UTC] jeffiel at jeffiel dot com 
I want to report the existence of this bug in PHP 5.0.2 on linux, in particular using the CLI.
 [2005-01-12 16:17 UTC] j dot henge-ernst at interexa dot de 
Using $Revision: 1.257.2.5 $ of oci8.c I had no crashes for a longer time so it seemd this issue is solved
 
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