Bug #73969 [Com]: segfault on debug_print_backtrace

Edit report at https://bugs.php.net/bug.php?id=73969&edit=1 ID: 73969 Comment by: homepage186 at gmail dot com Reported by: ryan dot brothers at gmail dot com Summary: segfault on debug_print_backtrace Status: Closed Type: Bug Package: Reproducible crash Operating System: Linux PHP Version: 7.1.1 Assigned To: tpunt Block user comment: N Private report: N New Comment: XPLRAY Previous Comments: ------------------------------------------------------------------------ [2017-01-22 16:12:54] krakjoe@php.net Automatic comment on behalf of andrew.nester.dev@gmail.com Revision: http://git.php.net/?p=php-src.git;a=commit;h=6f912f7c045ae723d01a24504bf0ae0711fd8a4f Log: Fixed #73969 - Fixed segmentation fault when debug_print_backtrace called ------------------------------------------------------------------------ [2017-01-22 14:44:32] andrew dot nester dot dev at gmail dot com Hi! I've just added pull request on GitHub which fixes this problem. ------------------------------------------------------------------------ [2017-01-21 19:30:43] ryan dot brothers at gmail dot com Description: ------------ When running the below script on PHP 7.1.1, a segmentation fault occurs when calling debug_print_backtrace(). There are 2 files below: 1.php and 2.php To run it, run: php 1.php It seems to be related to the method aliasing for the trait for c2::f1 as f2. If that line is removed, the script runs cleanly. Test script: --------------- 1.php: <?php trait c2 { public static function f1() { } } class c1 { use c2 { c2::f1 as f2; } public static function go() { return require('2.php'); } } c1::go(); ======= 2.php: <?php debug_print_backtrace(); Expected result: ---------------- #0 require() called at [/tmp/1.php:19] #1 c1::go() called at [/tmp/1.php:23] Actual result: -------------- #0 c1::Segmentation fault ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=73969&edit=1