From: php dot bugs at jamie-thompson dot co dot uk Operating system: Debian Sarge PHP version: 4.3.10 PHP Bug Type: XSLT related Bug description: Union of external documents causes timeout
Description: ------------ I'm using external xml files to populate a select control. As XSLT 1.0 doesn't allow arbitray node-sets, I load these from external documents using the document() function. One file contains the actual data, the other contains a wildcard entry. I want to union these nodesets and use the result to populate the control. This works fine with Firefox's Transformiix engine, but Sablotron seems to dislike the union operator immensely when used on external data, E.g. merging a local nodeset with an external one causes a lockup, as does merging two identical exterbal nodesets (though only from different sources). Info: ----- I am using Debian Sarge, with fully updated packages as of 30/05/05, currently that's PHP 4.3.10-15 and Apache 2.0.54-4. Here's the configure line from phpinfo(): '../configure' '--prefix=/usr' '--with-apxs2=/usr/bin/apxs2' '--with-config-file-path=/etc/php4/apache2' '--enable-memory-limit' '--disable-debug' '--with-regex=php' '--disable-rpath' '--disable-static' '--with-pic' '--with-layout=GNU' '--with-pear=/usr/share/php' '--enable-calendar' '--enable-sysvsem' '--enable-sysvshm' '--enable-sysvmsg' '--enable-track-vars' '--enable-trans-sid' '--enable-bcmath' '--with-bz2' '--enable-ctype' '--with-db4' '--with-iconv' '--enable-exif' '--enable-filepro' '--enable-ftp' '--with-gettext' '--enable-mbstring' '--with-pcre-regex=/usr' '--enable-shmop' '--enable-sockets' '--enable-wddx' '--disable-xml' '--with-expat-dir=/usr' '--with-xmlrpc' '--enable-yp' '--with-zlib' '--without-pgsql' '--with-kerberos=/usr' '--with-openssl=/usr' '--with-zip=/usr' '--enable-dbx' '--with-mime-magic=/usr/share/misc/file/magic.mime' '--with-exec-dir=/usr/lib/php4/libexec' '--without-mm' '--without-mysql' '--without-sybase-ct' Reproduce code: --------------- I have attempted to cobble together some testcases, these can be found at: http://random.jamie-thompson.co.uk/sablotron/bug.xsl http://random.jamie-thompson.co.uk/sablotron/bug1.xml http://random.jamie-thompson.co.uk/sablotron/bug2.xml http://random.jamie-thompson.co.uk/sablotron/bug1clone.xml The xsl file is single-source file, (a stylesheet wrapped in an xml wrapper so as to be able to include arbitray local nodesets for testing), which loads the xml files using the document function. In the xsl file's main template you will find a number of tests, with those that cause lock-ups commented out. These scenarios are: * performing a union of two external nodesets. This seems to work, sometimes. It started working in my testcase at some indeterminate point, however it still causes lockups in my actual code. * performing a union of an external xml file with a local node set. This causes Sablotron to lock up * performing a union of an external xml file with another containing the same node set. This also causes Sablotron to lock up Expected result: ---------------- I expect to get the union of the two node sets without a lockup occurring. Firefox's output with all of the tests enabled is: one: equipment list item equipment id 0 name Any Equipment two: equipment list item equipment id 1 name More Equipment local: random hi random woo remote 1: equipment list item equipment id 0 name Any Equipment remote 2: equipment list item equipment id 1 name More Equipment dual remote: list item equipment id 1 name More Equipment list item equipment id 0 name Any Equipment single remote and local: random hi equipment list item equipment id 0 name Any Equipment clone remote: equipment list item equipment id 0 name Any Equipment equipment list item equipment id 0 name Any Equipment Actual result: -------------- With logging turned on, I get this: Sablotron Message on line none, level log: Parsing 'file:///var/www/random/sablotron/bug.xsl'... Sablotron Message on line none, level log: Parse done in 0.042 seconds Sablotron Message on line none, level log: Parsing 'file:///var/www/random/sablotron/bug.xsl'... Sablotron Message on line none, level log: Parse done in 0.015 seconds Sablotron Message on line none, level log: Executing stylesheet 'file:///var/www/random/sablotron/bug.xsl'... Sablotron Message on line none, level log: Parsing 'file:///var/www/random/sablotron/bug1.xml'... Sablotron Message on line none, level log: Parse done in 0.003 seconds Sablotron Message on line none, level log: Parsing 'file:///var/www/random/sablotron/bug2.xml'... Sablotron Message on line none, level log: Parse done in 0.002 seconds Sablotron Message on line none, level log: Parsing 'file:///var/www/random/sablotron/bug1clone.xml'... Sablotron Message on line none, level log: Parse done in 0.002 seconds ...and thats it, the script just times out after using most of the cpu for the duration. -- Edit bug report at http://bugs.php.net/?id=33190&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33190&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=33190&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=33190&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=33190&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=33190&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=33190&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=33190&r=needscript Try newer version: http://bugs.php.net/fix.php?id=33190&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=33190&r=support Expected behavior: http://bugs.php.net/fix.php?id=33190&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=33190&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=33190&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=33190&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33190&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=33190&r=dst IIS Stability: http://bugs.php.net/fix.php?id=33190&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=33190&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=33190&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=33190&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=33190&r=mysqlcfg
