Bug #70749 [NEW]: try...catch with set_error_handler throttle all CPU cores overheat - freeze O/S

From: ryan dot jentzsch at gmail dot com Operating system: Linux Mint 17.2 PHP version: 7.0.0RC5 Package: Performance problem Bug Type: Bug Bug description:try...catch with set_error_handler throttle all CPU cores overheat - freeze O/S Description: ------------ PHP 7 RC5 If I run the referenced script using PHP 5.6.14 there are no problems. Running this using the PHP 7 engine however results in a number of very bad things: - My laptop fans go crazy. - My 4 core CPUs are maxed. - My laptop starts to overheat. - The O/S either freezes or the kernel panics. Linux Mint 17.2 Intel 64-bit Test script: --------------- Script to produce problem. https://www.dropbox.com/s/uqmccqm9ts0xgrd/test.php?dl=0 Configuration: https://www.dropbox.com/s/jguszkigzxnce47/config.txt?dl=0 Expected result: ---------------- In PHP 5.6.14 I see this (I would expect the same from PHP 7): Caught exception: YOLO Process finished with exit code 0 Actual result: -------------- - My laptop fans go crazy. - My 4 core CPUs are maxed. - My laptop starts to overheat. - The O/S either freezes or the kernel panics. -- Edit bug report at https://bugs.php.net/bug.php?id=70749&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70749&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70749&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70749&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70749&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70749&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70749&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70749&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70749&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70749&r=support Expected behavior: https://bugs.php.net/fix.php?id=70749&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70749&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70749&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70749&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70749&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70749&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70749&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70749&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70749&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70749&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70749&r=mysqlcfg