Re: Possible bug in Zend (zend_function_entry)

On Tue, Jan 25, 2000 at 06:07:22PM +0200, Zeev Suraski wrote: > Are you using the latest CVS? There were plenty of changes in the last > few days, and some of them broke the tree fairly badly. Make sure you're > using the latest CVS. Yes, it is the latest CVS and the error appears for at least two month now. I never had the time to look for it until today, but than I got stuck again. Uwe > > Zeev > > On Tue, 25 Jan 2000, Uwe Steinmann wrote: > > > Hi, > > > > I resumed working on the dom xml extension and try to find a long > > existing bug in the module. > > > > php died with the following backtrace if I call a method of a class > > ($rootnode->getattr("language")): > > > > Program received signal SIGSEGV, Segmentation fault. > > zend_hash_find (ht=0x819a5a8, arKey=0x81aca18 "getattr", nKeyLength=8, > > pData=0xbffff2c4) at zend_hash.c:839 > > 839 if ((p->h == h) && (p->nKeyLength == nKeyLength)) { > > (gdb) bt > > #0 zend_hash_find (ht=0x819a5a8, arKey=0x81aca18 "getattr", nKeyLength=8, > > pData=0xbffff2c4) at zend_hash.c:839 > > #1 0x80eb16a in execute (op_array=0x819ec38) at ./zend_execute.c:1497 > > #2 0x80801bf in php_execute_script (primary_file=0xbffff3d8) at main.c:1244 > > #3 0x8061c8c in main (argc=3, argv=0xbffff444) at cgi_main.c:483 > > (gdb) > > > > Though, I don't have any idea of how zend works internally it looks like > > the error has to do with an impropperly set up hashtable. > > > > In my code I fill up a zend_function_entry with the methods of the class: > > > > static zend_function_entry php_domxmlnode_class_functions[] = { > > PHP_FALIAS(lastchild, domxml_lastchild, NULL) > > PHP_FALIAS(children, domxml_children, NULL) > > PHP_FALIAS(parent, domxml_parent, NULL) > > PHP_FALIAS(getattr, domxml_getattr, NULL) > > PHP_FALIAS(setattr, domxml_setattr, NULL) > > PHP_FALIAS(attributes, domxml_attributes, NULL) > > {NULL, NULL, NULL} > > }; > > > > Unfortunately the above seems to make problems. If I remove any of > > the above functions from the entry then everything works. To be more precise: > > any number up to 5 functions is OK. If I add a 6th function php dies with > > the above error. > > > > I did some debugging and found the TableSize of the internal hash table has > > a size of 5. Could this be related? > > > > Uwe > > > > PS: The complete code is in ext/domxml/domxml.c > > > > -- > Zeev Suraski <zeev@zend.com> > http://www.zend.com/ > > -- Uwe.Steinmann@fernuni-hagen.de Tel: +2331 987 4528 Fax: +2331 987 375