Bug #71342 [Fbk]: Crash in "zend_mm_gc"

From: Date: Tue, 12 Jan 2016 03:30:43 +0000
Subject: Bug #71342 [Fbk]: Crash in "zend_mm_gc"
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-198594@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=71342&edit=1

 ID:                 71342
 Updated by:         laruence@php.net
 Reported by:        michael dot hartmann at refx dot com
 Summary:            Crash in "zend_mm_gc"
 Status:             Feedback
 Type:               Bug
 Package:            Reproducible crash
 Operating System:   Windows 10
 PHP Version:        7.0.2
 Block user comment: N
 Private report:     N

 New Comment:

btw, I think it probably relates to YAML, could you try with out it? (like use a pure php
implementation of Yaml instead ext)


Previous Comments:
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[2016-01-12 03:30:05] laruence@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.



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[2016-01-11 22:35:35] michael dot hartmann at refx dot com

Description:
------------
Downloaded Windows PHP 7.0.2 x64 (NTS), Wincache 2.0.0.4 and YAML 2.0.0(RC7)

Website works 20% of the time, the other 80% of the time I get:

Faulting application name: php-cgi.exe, version: 7.0.2.0, time stamp: 0x568d8141
Faulting module name: php7.dll, version: 7.0.2.0, time stamp: 0x568d8c40
Exception code: 0xc0000005
Fault offset: 0x000000000039be3e
Faulting process id: 0xe58
Faulting application start time: 0x01d14cbc989dfd84
Faulting application path: E:\PHP7\php-cgi.exe
Faulting module path: E:\PHP7\php7.dll
Report Id: 4d36902c-9377-4fb8-bb37-890a846cf0a4
Faulting package full name: 
Faulting package-relative application ID: 

In the event-viewer

I've used a 3rd party tool to find the fault address, which seems to be

zend_mm_gc + 6E

so it seems it crashes somewhere in the garbage collector.

With 7.0.0 and 7.0.1 I got 100% crashes and the site never worked.

Site is working perfectly fine in all PHP 5.5 and 5.6 versions.

If need be, I would be open for a remote-desktop session from a trusted developer to diagnose the
problem further.



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Edit this bug report at https://bugs.php.net/bug.php?id=71342&edit=1


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