X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:reply-to:message-id:to:subject :in-reply-to:references:mime-version:content-type :content-transfer-encoding; q=dns; s=default; b=qUzE/Sg0wyZyf+k5 xG9u009OyNGm7MzUE90XfethT5Jq1j7PQogMFjCypY5JnMP/dA55IA35iv2Et9KP PUmKWUhXn80oZaOuxeKe38cmH5a0tydrWYQR2sfdsc9vLqyg3AveeZda1vS5xE9l SFM+Xeqeyed7SvC+hjj5oKEQVwA= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:from:reply-to:message-id:to:subject :in-reply-to:references:mime-version:content-type :content-transfer-encoding; s=default; bh=akdHJY8NSAjHU0khwnZuz5 ejYMM=; b=NUg+PYyq5ntGFTGPx4Ib5eBRHExCp9I1gBsKGfPo3rU7qg0npM/3gH JgI8KjzJKi1R7rrbybZS66nOd5cQgQfw0E7bTRgzPJHZUPbq/rByWsNZQ6L+/13I pMtR7siR9X0Va1HJKam8SNxkrT7C8yVx/8+11S61nKficCKpRzfKY= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: <cygwin.cygwin.com> List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com> List-Archive: <http://sourceware.org/ml/cygwin/> List-Post: <mailto:cygwin AT cygwin DOT com> List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs> Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.3 required=5.0 tests=AWL,BAYES_40,FREEMAIL_FROM,KAM_THEBAT,MIME_BASE64_BLANKS,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=no version=3.3.2 spammy=H*F:D*yandex.ru, H*Ad:D*ab.ca, H*MI:sk:9192639, HTo:D*ab.ca X-HELO: forward2m.cmail.yandex.net Authentication-Results: smtp1o.mail.yandex.net; dkim=pass header.i=@yandex.ru X-Yandex-Suid-Status: 1 0,1 0 Date: Mon, 19 Dec 2016 23:17:26 +0300 From: Andrey Repin <anrdaemon AT yandex DOT ru> Reply-To: cygwin AT cygwin DOT com Message-ID: <1092116748.20161219231726@yandex.ru> To: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>, cygwin AT cygwin DOT com Subject: Re: PHP 7.0.14 crashing with minimal set of extensions In-Reply-To: <c74f035f-09fe-3a7e-302a-eed7fdb0d922@SystematicSw.ab.ca> References: <1762469321 DOT 20161213210612 AT yandex DOT ru> <a0b430f2-bcd3-2c78-f402-9d0812181453 AT cygwin DOT com> <641869745 DOT 20161214140428 AT yandex DOT ru> <c19592da-bb4f-9b5d-7be0-0ff9852bd205 AT SystematicSw DOT ab DOT ca> <919263915 DOT 20161218214043 AT yandex DOT ru> <c74f035f-09fe-3a7e-302a-eed7fdb0d922 AT SystematicSw DOT ab DOT ca> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 X-IsSubscribed: yes Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id uBJKLvEK023676 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... -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple