X-Spam-Check-By: sourceware.org Message-ID: <447983D4.1080105@freenet.de> Date: Sun, 28 May 2006 13:04:52 +0200 From: Ralf Habacker User-Agent: Thunderbird 1.5.0.2 (Windows/20060308) MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: 1.5.19: changes have broken Qt3 References: <044e01c67e8f$0abed720$a501a8c0@CAM.ARTIMI.COM> <447350C4.1080604@freenet.de> <20060523182326.GB6138@trixie.casa.cgf.cx> <4473607C.2070806@freenet.de> <44741E31.665A1B7@dessent.net> <447420D1.8090909@freenet.de> <4474250C.AA4A166@dessent.net> <44744F28.905@freenet.de> <44789FCB.2FFF9168@dessent.net> <4478B5D3.4000806@freenet.de> <4478CDD5.E259C90F@dessent.net> In-Reply-To: <4478CDD5.E259C90F@dessent.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Brian Dessent schrieb: > Ralf Habacker wrote: > >> There is only one case where I still believe that there may be a problem. >> If a pthread_mutexattr_t is constructed on the stack and the magic class >> membere is be exactly the predefined value, pthread_mutexattr_init() >> will return EBUSY, although there is no good object, it is only by random. > > I believe this has been hashed out on the list before as well. I think > the conclusion is that the app needs to check the return values so that > it can cope with this case. I don't have a link to the thread handy. > >> My currently conclusion is that there are rare conditions in the pthread >> and/or exception stuff, which corrupts the stack and that there is more >> work required to find out the problem. > > This I don't doubt, but I think it will just require someone digging > in. If you can whittle down the qt3 stack overflow crash to a testcase, > then there's a good chance someone reading will give it more attention. I just downloaded cywin snapshot 2005-06-27 and got running designer and uic without any problem, so it looks like there is no need to deep more into this stuff. I will follow the next time if this problems takes places again. Regards Ralf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (Cygwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEeYPUoHh+5t8EXncRAp+gAKCCzeyZYaEuwvRiaDL2FB/hYGPAjQCeJSH2 /BqF8kRfoLwrWOBQMLA21wg= =PPbt -----END PGP SIGNATURE----- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/