#26478 [NEW]: Segfault under load with scripts that call MySQL

From: fillmore at nrcan dot gc dot ca Operating system: Solaris 8 (SPARC) PHP version: 4.3.4 PHP Bug Type: Reproducible crash Bug description: Segfault under load with scripts that call MySQL Description: ------------ PHP 4.3.4 --with-nsapi (and 4.3.2) segfaults when many simultaneous requests are made to a script that calls MySQL. It fails under both SunONE Web Server 6.0 and 6.1 with: [30/Nov/2003:18:39:36] catastrophe ( 2877): Server crash detected (signal SIGBUS) [30/Nov/2003:18:39:36] info ( 2877): Crash occurred in NSAPI SAF php4_execute [30/Nov/2003:18:39:36] info ( 2877): Crash occurred in function _db_return_ from module /sunone/bin/libphp4.so It only happens if a load test is run with more than about 30 simultaneous users. It does not appear to be a multithreading problem- it still fails with all CPUs except one shut off. - Bob Fillmore -- Edit bug report at http://bugs.php.net/?id=26478&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26478&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26478&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26478&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26478&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26478&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=26478&r=needscript Try newer version: http://bugs.php.net/fix.php?id=26478&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26478&r=support Expected behavior: http://bugs.php.net/fix.php?id=26478&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26478&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26478&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26478&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26478&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26478&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26478&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26478&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26478&r=float