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Subject: Re: php 7 upgrade -- segmentation fault
To: cygwin@cygwin.com
References: <5118c6cbe09f3ed17a791417295bd3dafb91@guerrillamail.com>
From: Yaakov Selkowitz <yselkowitz@cygwin.com>
Message-ID: <d7efaf50-2846-7dc5-e660-a26904f4e44c@cygwin.com>
Date: Tue, 29 Nov 2016 12:56:34 -0600
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On 2016-11-29 12:22, 59yfvs+f4bkzvgzw@guerrillamail.com wrote:
> I can revert to php5 (insecure) and the problem is gone.  I just performed
> a full rebase which did nothing for this problem. Are you saying that on a
> Windows 7 64 bit Home system with 32 bit cygwin you are not having any issues?

I was testing on Windows 10 Pro.

> I found a solution that is not really satisfying.  If I go into Windows
> System Advanced Settings - Data Execution Prevention tab, and I explicitly
> add php.exe to the list of DEP exceptions, I no longer have errors with preg_match().

Ah, that explains it.  PHP 7 uses pcre's JIT functionality where 5.6 did 
not.  I guess you'd have the same problem with anything using a JIT. 
You will have to handle such issues with DEP on your end.

-- 
Yaakov

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