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Re: PHP 7.0.14 crashing with minimal set of extensions
Greetings, Brian Inglis!
> On 2016-12-18 11:40, Andrey Repin wrote:
>> Greetings, Brian Inglis!
>>> On 2016-12-14 04:04, Andrey Repin wrote:
>>>> Greetings, Yaakov Selkowitz!
>>>>> On 2016-12-13 12:06, Andrey Repin wrote:
>>>>>> Here's strace and stackdump from latest crash with Cygwin
>>>>>> 2.6.1-2 project.rootdir.org/.offload/crash-php-7.14.tar.xz
>>>>> Are you 100% sure that your code is compatible with PHP 7?
>>>>> The only segfaults I have seen so far is with old code.
>>>> It's Composer. It runs with native PHP7 of the same version just
>>>> fine.
>>> Possibly JIT/DEP conflict see
>>> https://cygwin.com/ml/cygwin/2016-11/msg00336.html
>> Gah… confirmed. Setting pcre.jit = Off let it run.
> Does the native app use JIT and have no problems with Windows DEP?
pcre.jit => 1 => 1
Seems like "yes".
> Does PHP need some Cygwin specific patches to re-mmap JIT code as rx,
> or Cygwin patches so Windows sees mmap rx regions as executable code,
> or otherwise "blesses" JIT code so it is not crashed by DEP?
That, I do not know.
> There should at least be some way to indicate there is a DEP issue
> rather than just crashing with a segv!
I do not enforce DEP here.
But I just found references that this can be a stack overflow issue.
--
With best regards,
Andrey Repin
Monday, December 19, 2016 23:12:14
Sorry for my terrible english...
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