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crash in sqlite_oo/spl

php.internals

Ard Biesheuvel

22 years ago

Currently, ext/sqlite/tests/sqlite_oo_031.phpt crashes after completion
of the script. If I unset($menu_iterator) first, the crash disappears.

--
Ard

Ard Biesheuvel

22 years ago

#0  0x081b81ed in _zend_is_inconsistent (ht=0x5a5a5a5a, file=0x821d580
"/home/abies/build/php5-cvs/Zend/zend_hash.c", line=504)
at /home/abies/build/php5-cvs/Zend/zend_hash.c:53
#1  0x081b99b2 in zend_hash_destroy (ht=0x5a5a5a5a) at
/home/abies/build/php5-cvs/Zend/zend_hash.c:504
#2  0x08090c25 in sqlite_object_free_storage (object=0x402839d4) at
/home/abies/build/php5-cvs/ext/sqlite/sqlite.c:764
#3  0x081c8b75 in zend_objects_store_del_ref (zobject=0x4028b50c) at
/home/abies/build/php5-cvs/Zend/zend_objects_API.c:140
#4  0x081b0142 in _zval_dtor (zvalue=0x4028b50c,
__zend_filename=0x821b7e0
"/home/abies/build/php5-cvs/Zend/zend_execute_API.c",
__zend_lineno=359) at
/home/abies/build/php5-cvs/Zend/zend_variables.c:61
#5  0x081a5f9b in _zval_ptr_dtor (zval_ptr=0x4028d348,
__zend_filename=0x821c540
"/home/abies/build/php5-cvs/Zend/zend_variables.c", __zend_lineno=196)
at /home/abies/build/php5-cvs/Zend/zend_execute_API.c:359
#6  0x081b0470 in _zval_ptr_dtor_wrapper (zval_ptr=0x4028d348) at
/home/abies/build/php5-cvs/Zend/zend_variables.c:196
#7  0x081b99f9 in zend_hash_destroy (ht=0x4028cf9c) at
/home/abies/build/php5-cvs/Zend/zend_hash.c:513
#8  0x081c6305 in zend_objects_free_object_storage (object=0x40287774)
at /home/abies/build/php5-cvs/Zend/zend_objects.c:77
#9  0x081c8971 in zend_objects_store_free_object_storage (objects=0x823a120)
at /home/abies/build/php5-cvs/Zend/zend_objects_API.c:71
#10 0x081a5d17 in shutdown_executor () at
/home/abies/build/php5-cvs/Zend/zend_execute_API.c:273
#11 0x081b1864 in zend_deactivate () at
/home/abies/build/php5-cvs/Zend/zend.c:814
#12 0x0816e07c in php_request_shutdown (dummy=0x0) at
/home/abies/build/php5-cvs/main/main.c:1243
#13 0x081e16e3 in main (argc=2, argv=0xbffffd74) at
/home/abies/build/php5-cvs/sapi/cli/php_cli.c:1044

Marcus Börger

22 years ago

Hello Ard,

on the first sight it looks pretty much as if you havn't updated your build
tree completley. Please check that ext/spl, ext/sqlite and Zend are up to
date. Because for me it works pretty well. However i think this may not be
your problem since looking at the backtrace shows that an uninitialized
sqlite object gets gestroyed (#1: ht=0x5a5a5a5a).


Tuesday, February 24, 2004, 2:49:01 PM, you wrote:

> #0  0x081b81ed in _zend_is_inconsistent (ht=0x5a5a5a5a, file=0x821d580
> "/home/abies/build/php5-cvs/Zend/zend_hash.c", line=504)
>      at /home/abies/build/php5-cvs/Zend/zend_hash.c:53
> #1  0x081b99b2 in zend_hash_destroy (ht=0x5a5a5a5a) at
> /home/abies/build/php5-cvs/Zend/zend_hash.c:504
> #2  0x08090c25 in sqlite_object_free_storage (object=0x402839d4) at
> /home/abies/build/php5-cvs/ext/sqlite/sqlite.c:764
> #3  0x081c8b75 in zend_objects_store_del_ref (zobject=0x4028b50c) at
> /home/abies/build/php5-cvs/Zend/zend_objects_API.c:140
> #4  0x081b0142 in _zval_dtor (zvalue=0x4028b50c,
> __zend_filename=0x821b7e0
> "/home/abies/build/php5-cvs/Zend/zend_execute_API.c",
>      __zend_lineno=359) at
> /home/abies/build/php5-cvs/Zend/zend_variables.c:61
> #5  0x081a5f9b in _zval_ptr_dtor (zval_ptr=0x4028d348,
>      __zend_filename=0x821c540
> "/home/abies/build/php5-cvs/Zend/zend_variables.c", __zend_lineno=196)
>      at /home/abies/build/php5-cvs/Zend/zend_execute_API.c:359
> #6  0x081b0470 in _zval_ptr_dtor_wrapper (zval_ptr=0x4028d348) at
> /home/abies/build/php5-cvs/Zend/zend_variables.c:196
> #7  0x081b99f9 in zend_hash_destroy (ht=0x4028cf9c) at
> /home/abies/build/php5-cvs/Zend/zend_hash.c:513
> #8  0x081c6305 in zend_objects_free_object_storage (object=0x40287774)
> at /home/abies/build/php5-cvs/Zend/zend_objects.c:77
> #9  0x081c8971 in zend_objects_store_free_object_storage (objects=0x823a120)
>      at /home/abies/build/php5-cvs/Zend/zend_objects_API.c:71
> #10 0x081a5d17 in shutdown_executor () at
> /home/abies/build/php5-cvs/Zend/zend_execute_API.c:273
> #11 0x081b1864 in zend_deactivate () at
> /home/abies/build/php5-cvs/Zend/zend.c:814
> #12 0x0816e07c in php_request_shutdown (dummy=0x0) at
> /home/abies/build/php5-cvs/main/main.c:1243
> #13 0x081e16e3 in main (argc=2, argv=0xbffffd74) at
> /home/abies/build/php5-cvs/sapi/cli/php_cli.c:1044

--
Best regards,
Marcus                            mailto:helly@php.net

Ard Biesheuvel

22 years ago

Marcus Boerger wrote:

> Hello Ard,
>
> on the first sight it looks pretty much as if you havn't updated your build
> tree completley. Please check that ext/spl, ext/sqlite and Zend are up to
> date. Because for me it works pretty well. However i think this may not be
> your problem since looking at the backtrace shows that an uninitialized
> sqlite object gets gestroyed (#1: ht=0x5a5a5a5a).

This is from a fresh checkout on another machine:

#0  0x00000001202c5ab0 in _zend_is_inconsistent (ht=0x5a5a5a5a5a5a5a5a,
file=0x12034f962 "/home/abies/build/php5-cvs/Zend/zend_hash.c",
line=504) at /home/abies/build/php5-cvs/Zend/zend_hash.c:53
#1  0x00000001202c800c in zend_hash_destroy (ht=0x1200ecbf4) at
/home/abies/build/php5-cvs/Zend/zend_hash.c:504
#2  0x00000001200ecbf4 in sqlite_object_free_storage
(object=0x1203eb180) at /home/abies/build/php5-cvs/ext/sqlite/sqlite.c:764
#3  0x00000001202e15b4 in zend_objects_store_del_ref (zobject=0x1203d26a8)
at /home/abies/build/php5-cvs/Zend/zend_objects_API.c:140
#4  0x00000001202b77b8 in _zval_dtor (zvalue=0x1203f6308,
__zend_filename=0x12034dbc0
"/home/abies/build/php5-cvs/Zend/zend_execute_API.c", __zend_lineno=359)
at /home/abies/build/php5-cvs/Zend/zend_variables.c:61
#5  0x00000001202a6078 in _zval_ptr_dtor (zval_ptr=0x1202c8068,
__zend_filename=0x11ff8cb8 "\214Õ- \001", __zend_lineno=541022192)
at /home/abies/build/php5-cvs/Zend/zend_execute_API.c:359
#6  0x00000001202b7dd0 in _zval_ptr_dtor_wrapper (zval_ptr=0x1203f57f0)
at /home/abies/build/php5-cvs/Zend/zend_variables.c:196
#7  0x00000001202c8068 in zend_hash_destroy (ht=0x1202dd58c) at
/home/abies/build/php5-cvs/Zend/zend_hash.c:513
#8  0x00000001202dd58c in zend_objects_free_object_storage
(object=0x1203f57f0)
at /home/abies/build/php5-cvs/Zend/zend_objects.c:77
#9  0x00000001202e1134 in zend_objects_store_free_object_storage
(objects=0x1203cccb8)
at /home/abies/build/php5-cvs/Zend/zend_objects_API.c:71
#10 0x00000001202a5af0 in shutdown_executor () at
/home/abies/build/php5-cvs/Zend/zend_execute_API.c:273
#11 0x00000001202ba5b4 in zend_deactivate () at
/home/abies/build/php5-cvs/Zend/zend.c:814
#12 0x000000012024d9fc in php_request_shutdown (dummy=0x0) at
/home/abies/build/php5-cvs/main/main.c:1243
#13 0x000000012030975c in main (argc=1614192548, argv=0x11ffbaf8) at
/home/abies/build/php5-cvs/sapi/cli/php_cli.c:1044

--
Ard

Ard Biesheuvel

22 years ago

Marcus Boerger wrote:

> Hello Ard,
>
> on the first sight it looks pretty much as if you havn't updated your build
> tree completley. Please check that ext/spl, ext/sqlite and Zend are up to
> date. Because for me it works pretty well. However i think this may not be
> your problem since looking at the backtrace shows that an uninitialized
> sqlite object gets gestroyed (#1: ht=0x5a5a5a5a).

I've narrowed it down to :

php -r '$o->foo = new sqlite_db("/tmp/sqlite_db");'

--
Ard

Marcus Börger

22 years ago

Hello Ard,

Wednesday, February 25, 2004, 1:53:18 AM, you wrote:

> Marcus Boerger wrote:

>> Hello Ard,
>>
>> on the first sight it looks pretty much as if you havn't updated your build
>> tree completley. Please check that ext/spl, ext/sqlite and Zend are up to
>> date. Because for me it works pretty well. However i think this may not be
>> your problem since looking at the backtrace shows that an uninitialized
>> sqlite object gets gestroyed (#1: ht=0x5a5a5a5a).

> I've narrowed it down to :

> php -r '$o->foo = new sqlite_db("/tmp/sqlite_db");'

Thanks, this why i had a SEGV too. And i found a problem in the way the
engine destructs and frees objects during shutdown. Please try again it
should be fixed right now.

Best regards,
Marcus                            mailto:helly@php.net

Ard Biesheuvel

22 years ago

> Thanks, this why i had a SEGV too. And i found a problem in the way the
> engine destructs and frees objects during shutdown. Please try again it
> should be fixed right now.

It works now.

--
Ard

Andi Gutmans

22 years ago

Looks like a reference count problem to me.
Best if the ppl familiar with sqlite/spl take a look.

Andi

At 14:49 24/02/2004 +0100, Ard Biesheuvel wrote: