Thread: crash in apache

I got a sig 11 in an apache child process:

(gdb) bt
#0  0x403e53f5 in _efree () from /etc/httpd/modules/libphp4.so
#1  0x408efcb0 in _notice_handler () from /usr/lib/php4/pgsql.so
#2  0x40905cfe in getNotice () from /usr/lib/libpq.so.2
#3  0x4090555b in parseInput () from /usr/lib/libpq.so.2
#4  0x40905aaa in PQgetResult () from /usr/lib/libpq.so.2
#5  0x40905bdc in PQexec () from /usr/lib/libpq.so.2
#6  0x408f1514 in php_if_pg_exec () from /usr/lib/php4/pgsql.so
#7  0x403f75cf in execute () from /etc/httpd/modules/libphp4.so
#8  0x403f77d9 in execute () from /etc/httpd/modules/libphp4.so
#9  0x403f77d9 in execute () from /etc/httpd/modules/libphp4.so
#10 0x403fe637 in execute () from /etc/httpd/modules/libphp4.so
#11 0x403fe637 in execute () from /etc/httpd/modules/libphp4.so
#12 0x403fe637 in execute () from /etc/httpd/modules/libphp4.so
#13 0x403fe637 in execute () from /etc/httpd/modules/libphp4.so
#14 0x4040a67c in zend_execute_scripts () from
/etc/httpd/modules/libphp4.so
#15 0x4041cd14 in php_execute_script () from
/etc/httpd/modules/libphp4.so
#16 0x404192d1 in apache_php_module_main () from
/etc/httpd/modules/libphp4.so
#17 0x40419d2d in send_php () from /etc/httpd/modules/libphp4.so
#18 0x40419d63 in send_parsed_php () from /etc/httpd/modules/libphp4.so
#19 0x08054a3d in ap_invoke_handler ()
#20 0x0806725c in process_request_internal ()
#21 0x080672d3 in ap_process_request ()
#22 0x0805f727 in child_main ()
#23 0x0805f969 in make_child ()
#24 0x0805fcbb in perform_idle_server_maintenance ()
#25 0x0806025c in standalone_main ()
#26 0x08060953 in main ()
#27 0x4016e657 in __libc_start_main (main=0x80604d0 <main>, argc=39,
ubp_av=0xbfffe234, init=0x804f3d8 <_init>, fini=0x8075080 <_fini>,
    rtld_fini=0x4000dcd4 <_dl_fini>, stack_end=0xbfffe22c) at
../sysdeps/generic/libc-start.c:129
(gdb)

Is that pgsqls fault, phps or apaches?

--
Markus Bertheau.
Berlin, Berlin.
Germany.

On Sun, 2002-09-08 at 21:19, Markus Bertheau wrote:
> I got a sig 11 in an apache child process:

This time with debug symbols:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 6943)]
0x403e5425 in _efree (ptr=0x83d7154) at ../../Zend/zend_alloc.c:226
226        REMOVE_POINTER_FROM_LIST(p);
(gdb) bt
#0  0x403e5425 in _efree (ptr=0x83d7154) at ../../Zend/zend_alloc.c:226
#1  0x408efda9 in _free_result (rsrc=0x81e29f4) at
/usr/src/redhat/BUILD/php-4.0.6/ext/pgsql/pgsql.c:202
#2  0x4040f5c1 in list_entry_destructor (ptr=0x81e29f4) at
../../Zend/zend_list.c:179
#3  0x4040e203 in zend_hash_del_key_or_index (ht=0x404fbd68, arKey=0x0,
nKeyLength=0, h=29, flag=1) at ../../Zend/zend_hash.c:531
#4  0x4040f363 in zend_list_delete (id=29) at ../../Zend/zend_list.c:57
#5  0x404092bb in _zval_dtor (zvalue=0x8252244) at
../../Zend/zend_variables.c:80
#6  0x40401880 in _zval_ptr_dtor (zval_ptr=0x83ac9f0) at
../../Zend/zend_execute_API.c:261
#7  0x4040e2d8 in zend_hash_destroy (ht=0x83ac7a4) at
../../Zend/zend_hash.c:560
#8  0x4040928c in _zval_dtor (zvalue=0x8288784) at
../../Zend/zend_variables.c:75
#9  0x40401880 in _zval_ptr_dtor (zval_ptr=0x83ac5a0) at
../../Zend/zend_execute_API.c:261
#10 0x4040e2d8 in zend_hash_destroy (ht=0x404fbc4c) at
../../Zend/zend_hash.c:560
#11 0x4040165f in shutdown_executor () at
../../Zend/zend_execute_API.c:165
#12 0x4040a08f in zend_deactivate () at ../../Zend/zend.c:540
#13 0x4041bd4d in php_request_shutdown (dummy=0x0) at
/usr/src/redhat/BUILD/php-4.0.6/main/main.c:660
#14 0x40419831 in php_apache_request_shutdown (dummy=0x0) at
/usr/src/redhat/BUILD/php-4.0.6/sapi/apache/mod_php4.c:292
#15 0x08051e79 in run_cleanups ()
#16 0x0805094b in ap_clear_pool ()
#17 0x080509b1 in ap_destroy_pool ()
#18 0x0805091c in ap_clear_pool ()
#19 0x0805f1bd in child_main ()
#20 0x0805f969 in make_child ()
#21 0x0805fcbb in perform_idle_server_maintenance ()
#22 0x0806025c in standalone_main ()
#23 0x08060953 in main ()
#24 0x4016e657 in __libc_start_main (main=0x80604d0 <main>, argc=39,
ubp_av=0xbffff234, init=0x804f3d8 <_init>, fini=0x8075080 <_fini>,
    rtld_fini=0x4000dcd4 <_dl_fini>, stack_end=0xbffff22c) at
../sysdeps/generic/libc-start.c:129
(gdb)


--
Markus Bertheau.
Berlin, Berlin.
Germany.

> > I got a sig 11 in an apache child process:

It's a well known problem with PHP 4.0.6. Upgrade to php 4.2.2.
(you could upgrade to 4.2.3 if you do not care about mbstring module
bugs).
--
Tatsuo Ishii