ID: 14136
Updated by: zeev
Reported By: [EMAIL PROTECTED]
Status: Critical
Bug Type: Scripting Engine problem
Operating System: Debian/Linux
PHP Version: 4.0CVS-2001-11-20
New Comment:
Doesn't look like a Zend problem to me. Apparently the table ends up containing the
wrong entries (i.e., the same entry more than once) or, if the analysis is accurate,
then the dependencies aren't properly implemented, and a resource (the parser) is
freed prematurely.
Previous Comments:
------------------------------------------------------------------------
[2001-11-20 07:34:40] [EMAIL PROTECTED]
Seems a Zend problem...
------------------------------------------------------------------------
[2001-11-20 03:59:03] [EMAIL PROTECTED]
Tested this with php compiled as cgi.
Everything works ok when after doing transformation
you use xslt_free() in your script.
When you forget to do so php may segfault.
This happens when there were a scheme/sax handler defined
with object reference:
xslt_set_sax_handlers($xslt, array("characters" =>
array(&$this, "func")));
Now when php shuts down it calls free_processor() which
after some recursive *_ptr_dtor() and alike calls reaches
again free_processor() with same zval handle. Since
sablotron processor is already destroyed it eventually
comes to segfault.
This doesn't happen when ordinary function is used as
callback handler.
Backtrace:
#0 0x00000000 in ?? ()
#1 0x400d8432 in Situation::generateMessage
(this=0x81c4bb8, type=MT_WARN, code=W1_HLR_NOT_REGISTERED,
arg1=@0xbfffee08,
arg2=@0xbfffedfc, theMessage=@0xbfffed70) at
situa.cpp:267
#2 0x400d8ae2 in Situation::message (this=0x81c4bb8,
type=MT_WARN, code=W1_HLR_NOT_REGISTERED,
arg1=@0xbfffee08, arg2=@0xbfffedfc)
at situa.cpp:348
#3 0x400cfb63 in Processor::report (this=0x81c4c58,
S=@0x81c4bb8, type=MT_WARN, code=W1_HLR_NOT_REGISTERED,
arg1=@0xbfffee08,
arg2=@0xbfffedfc) at proc.cpp:991
#4 0x400ce583 in Processor::setHandler (this=0x81c4c58,
S=@0x81c4bb8, type=HLR_MESSAGE, handler=0x0, userData=0x0)
at proc.cpp:741
#5 0x400d1a8c in SablotUnregHandler
(processor_=0x81c4c58, type=HLR_MESSAGE, handler=0x0,
userData=0x0) at sablot.cpp:728
#6 0x0811adc1 in free_processor (rsrc=0x81c0a8c) at
sablot.c:613
#7 0x080c3a2a in list_entry_destructor (ptr=0x81c0a8c) at
zend_list.c:177
#8 0x080c128e in zend_hash_del_key_or_index
(ht=0x818dc44, arKey=0x0, nKeyLength=0, h=1, flag=1) at
zend_hash.c:512
#9 0x080c378b in _zend_list_delete (id=1) at
zend_list.c:56
#10 0x080d9581 in _zval_dtor (zvalue=0x81c4574,
__zend_filename=0x813d01c "zend_execute_API.c",
__zend_lineno=274)
at zend_variables.c:64
#11 0x080c66ab in _zval_ptr_dtor (zval_ptr=0x81c0ad8,
__zend_filename=0x8149313 "zend_variables.c",
__zend_lineno=189)
at zend_execute_API.c:274
#12 0x080d98b4 in _zval_ptr_dtor_wrapper
(zval_ptr=0x81c0ad8) at zend_variables.c:189
#13 0x080c13ba in zend_hash_destroy (ht=0x81c101c) at
zend_hash.c:541
#14 0x080d9551 in _zval_dtor (zvalue=0x81c4a34,
__zend_filename=0x813d01c "zend_execute_API.c",
__zend_lineno=274)
at zend_variables.c:57
#15 0x080c66ab in _zval_ptr_dtor (zval_ptr=0x81c0b90,
__zend_filename=0x8149313 "zend_variables.c",
__zend_lineno=189)
at zend_execute_API.c:274
#16 0x080d98b4 in _zval_ptr_dtor_wrapper
(zval_ptr=0x81c0b90) at zend_variables.c:189
#17 0x080c13ba in zend_hash_destroy (ht=0x81c0b24) at
zend_hash.c:541
#18 0x080d9521 in _zval_dtor (zvalue=0x81c0c5c,
__zend_filename=0x813d01c "zend_execute_API.c",
__zend_lineno=274)
at zend_variables.c:51
#19 0x080c66ab in _zval_ptr_dtor (zval_ptr=0x81c4b9c,
__zend_filename=0x81672fb "sablot.c", __zend_lineno=633)
at zend_execute_API.c:274
#20 0x0811b00e in free_processor (rsrc=0x81c0a8c) at
sablot.c:633
#21 0x080c3a2a in list_entry_destructor (ptr=0x81c0a8c) at
zend_list.c:177
#22 0x080c3c15 in zend_destroy_rsrc_list (ht=0x818dc44) at
zend_list.c:248
#23 0x080c64a7 in shutdown_executor () at
zend_execute_API.c:196
#24 0x080c8e36 in zend_deactivate () at zend.c:600
#25 0x080637cf in php_request_shutdown (dummy=0x0) at
main.c:736
#26 0x0805f023 in main (argc=2, argv=0xbffffb34) at
cgi_main.c:785
#27 0x401e965f in __libc_start_main () from /lib/libc.so.6
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Edit this bug report at http://bugs.php.net/?id=14136&edit=1
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