#35773 [NEW]: Zend engine loops

From: igmar at palsenberg dot com Operating system: Linux 2.6.x PHP version: 4CVS-2005-12-22 (CVS) PHP Bug Type: Scripting Engine problem Bug description: Zend engine loops Description: ------------ The ZE loops at certain code. I haven't found the actual code that triggers it, but it show up frequently when using phpMyAdmin. Configure line : ./configure' '--with-apache=/home/igmar/OWN/lamp-ssl/apache_1.3.34' '--with-gd' '--with-zlib' '--with-kerberos' '--with-openssl' '--enable-gd-native-ttf' '--with-freetype' '--with-freetype-dir=/usr' '--enable-track-vars' '--with-freetype' '--with-mysql=/usr' '--enable-sockets' '--with-config-file-path=/etc/httpsd' '--enable-memory-limit' '--enable-sysvshm' '--enable-sysvsem' '--with-domxml' '--with-dom' '--enable-ftp' '--with-openssl' '--with-db4' '--with-gettext' '--with-pdflib' '--with-jpeg-dir=/usr' '--with-tiff-dir=/usr' '--with-png-dir=/usr' '--with-ming=/usr' '--with-xmlrpc' '--with-readline' '--enable-xslt' '--with-xslt-sablot' '--enable-mbstring' '--with-imap' '--with-imap-ssl' Apache is 1.3.34 + latest mod_ssl Reproduce code: --------------- Unknown Actual result: -------------- 2 backtraces when the process starts looping. If there is a way that I can find out which PHP code it is actually executing, I'll be happy to find out. 4.3.x didn't exhibit this behaviour, I haven't tested 4.4.0. BT #1 #0 0x080f9326 in zend_hash_find (ht=0x84e53cc, arKey=0x87904bc "buffer", nKeyLength=7, pData=0xbfcb22c8) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_hash.c:896 #1 0x080ff813 in zend_fetch_var_address (opline=0x87c7450, Ts=0xbfcb2310, type=0) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:594 #2 0x08101c26 in execute (op_array=0x8747e2c) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:1302 #3 0x08104405 in execute (op_array=0x85b935c) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:2272 #4 0x080f529f in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend.c:934 #5 0x080d370c in php_execute_script (primary_file=0xbfcbc650) at /home/igmar/OWN/lamp-ssl/php-src/main/main.c:1753 #6 0x0810c558 in apache_php_module_main (r=0x858e454, display_source_mode=0) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/sapi_apache.c:54 #7 0x080cbc80 in send_php (r=0x858e454, display_source_mode=0, filename=0x0) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/mod_php4.c:627 #8 0x080cbf0e in send_parsed_php (r=0x858e454) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/mod_php4.c:642 #9 0x0821d7c8 in ap_invoke_handler () #10 0x08232e7e in process_request_internal () #11 0x08232edd in ap_process_request () #12 0x08229ceb in child_main ()#13 0x08229fd4 in make_child () #14 0x0822a30d in perform_idle_server_maintenance () #15 0x0822a91a in standalone_main () #16 0x0822af3d in main () BT #2 : 0x080f8536 in zend_hash_add_or_update (ht=0x864cb2c, arKey=0x85cee4c "offset", nKeyLength=7, pData=0xbfcb1314, nDataSize=4, pDest=0xbfcb1318, flag=1) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_hash.h:197 197 h += (h << 5); #0 0x080f8536 in zend_hash_add_or_update (ht=0x864cb2c, arKey=0x85cee4c "offset", nKeyLength=7, pData=0xbfcb1314, nDataSize=4, pDest=0xbfcb1318, flag=1) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_hash.h:197 #1 0x080ff9df in zend_fetch_var_address (opline=0x87bd13c, Ts=0xbfcb1360, type=1) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:609 #2 0x08101c5b in execute (op_array=0x8604e30) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:1281 #3 0x08103f93 in execute (op_array=0x8747e2c) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:1719 #4 0x08104405 in execute (op_array=0x85b935c) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend_execute.c:2272 #5 0x080f529f in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/igmar/OWN/lamp-ssl/php-src/Zend/zend.c:934 #6 0x080d370c in php_execute_script (primary_file=0xbfcbc650) at /home/igmar/OWN/lamp-ssl/php-src/main/main.c:1753 #7 0x0810c558 in apache_php_module_main (r=0x858e454, display_source_mode=0) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/sapi_apache.c:54 #8 0x080cbc80 in send_php (r=0x858e454, display_source_mode=0, filename=0x0) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/mod_php4.c:627 #9 0x080cbf0e in send_parsed_php (r=0x858e454) at /home/igmar/OWN/lamp-ssl/php-src/sapi/apache/mod_php4.c:642 #10 0x0821d7c8 in ap_invoke_handler () #11 0x08232e7e in process_request_internal () #12 0x08232edd in ap_process_request () #13 0x08229ceb in child_main () #14 0x08229fd4 in make_child () #15 0x0822a30d in perform_idle_server_maintenance () #16 0x0822a91a in standalone_main () #17 0x0822af3d in main () -- Edit bug report at http://bugs.php.net/?id=35773&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=35773&r=trysnapshot44 Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=35773&r=trysnapshot51 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=35773&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=35773&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=35773&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=35773&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=35773&r=needscript Try newer version: http://bugs.php.net/fix.php?id=35773&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=35773&r=support Expected behavior: http://bugs.php.net/fix.php?id=35773&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=35773&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=35773&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=35773&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35773&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=35773&r=dst IIS Stability: http://bugs.php.net/fix.php?id=35773&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=35773&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=35773&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=35773&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=35773&r=mysqlcfg