Bug #78476 [Ver]: Segfault when running Monolog test suite on 7.4snapshot

Edit report at https://bugs.php.net/bug.php?id=78476&edit=1 ID: 78476 Updated by: nikic@php.net Reported by: seld@php.net Summary: Segfault when running Monolog test suite on 7.4snapshot Status: Verified Type: Bug Package: Reproducible crash Operating System: Linux PHP Version: 7.4Git-2019-08-30 (snap) Block user comment: N Private report: N New Comment: Heh, this is a stack overflow caused by infinite recursion in the error handler for a "Trying to access array offset on value of type null" notice. The original notice is triggered in https://github.com/Seldaek/monolog/blob/21b1705c3e6a6312687a275870e3e539af0a3896/src/Monolog/Handler/ElasticsearchHandler.php#L150 and the infinite recursion occurs in https://github.com/Seldaek/monolog/blob/21b1705c3e6a6312687a275870e3e539af0a3896/src/Monolog/ErrorHandler.php#L201. Not sure where the opcache-specific bit in this is. Previous Comments: ------------------------------------------------------------------------ [2019-09-01 13:28:23] nikic@php.net Can reproduce with opcache ... didn't know that's enabled on Travis. ------------------------------------------------------------------------ [2019-08-30 13:57:59] nikic@php.net Can't reproduce with current 7.4 HEAD. ------------------------------------------------------------------------ [2019-08-30 13:50:15] seld@php.net Description: ------------ See Travis job output. That's all the info I have sorry no time to dig further at the moment. https://travis-ci.org/Seldaek/monolog/jobs/578742282 Test script: --------------- composer create-project monolog/monolog cd monolog vendor/bin/phpunit Expected result: ---------------- No segfault :) Actual result: -------------- Segfault :( ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=78476&edit=1