Edit report at https://bugs.php.net/bug.php?id=63913&edit=1
ID: 63913 Updated by: paj...@php.net Reported by: s...@php.net Summary: Segfault on preg_replace with some weird conditions -Status: Open +Status: Feedback Type: Bug Package: *Regular Expressions Operating System: Windows 7 x64 PHP Version: 5.5.0alpha2 Block user comment: N Private report: N New Comment: Can you provide a full BT please? Debug symbols must be loaded or the symbol path. Also I suspect the classic pcre stack limit crash issue here. Can you try to increase it using edit in and run the test again? If you could provide the simple pcre call, if it us actually a pcre crash. Previous Comments: ------------------------------------------------------------------------ [2013-01-06 00:15:10] s...@php.net Description: ------------ The composer test suite segfaults on 5.5 as you can see on https://travis-ci.org/composer/composer/jobs/3971664 I tried investigating on my machine and could not get to the bottom of it, so here are my findings, I hope someone else can reproduce and will have more of a clue than I do. The weirdest thing is that *sometimes* depending on the code changes I make to runme.php (see https://gist.github.com/7f465d4109d667a73984) it actually runs through fine, but most of the time it crashes. Then a bit later if I try and do a similar change it crashes again, either it's an intermittent system issue or something's very wrong. Since it also segfaults on travis I would assume the latter. Note that tweaking the input to the preg_replace call (by removing bits and pieces of testcase.php) also tends to make it work sometimes. For example removing the "}" at line 15 makes it work for me. Test script: --------------- Run these commands: git clone https://gist.github.com/7f465d4109d667a73984.git reproduce cd reproduce/ php runme.php Expected result: ---------------- With 5.4.8 VC9 TS I get the following: $ php runme.php string(8) "content:" string(103) "<?php\n namespace Foo; class StripNoise { public function test() { return <<<A\nclass Fail23\n{\n}\nA\n; } } " string(4) "test" string(2) "aa" string(8) "starting" string(4) "done" bool(true) Actual result: -------------- With 5.5.0-alpha2 V9 TS I get this: $ php runme.php string(8) "content:" string(103) "<?php namespace Foo; class StripNoise { public function test() { return <<<A class Fail23 { } A ; } } " string(4) "test" --- then the process crashes and I get a crash window with the following details --- Problem signature: Problem Event Name: APPCRASH Application Name: php.exe Application Version: 5.5.0.0 Application Timestamp: 50d1254a Fault Module Name: php5ts.dll Fault Module Version: 5.5.0.0 Fault Module Timestamp: 50d13446 Exception Code: c0000005 Exception Offset: 0004762d OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 4108 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=63913&edit=1
