X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Wed, 15 Jul 2009 23:01:43 -0400 From: Christopher Faylor To: cygwin@cygwin.com Subject: Re: perl threads on 2008 R2 64bit = crash ( was: perl 5.10 threads on 1.5.25 = instant crash ) Message-ID: <20090716030143.GC13329@ednor.casa.cgf.cx> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <894CDBC00A124EF386FE3A334A73DFB8@multiplay.co.uk> <20090714185506.GB12236@ednor.casa.cgf.cx> <20090714190436.GO27613@calimero.vinschen.de> <20090714200631.GP27613@calimero.vinschen.de> <20090714205617.GA12534@ednor.casa.cgf.cx> <8541BCA91FF64580AA7A8065FBF9C938@multiplay.co.uk> <39B3B148DA514671BB2E1AE46946169C@multiplay.co.uk> <6910a60907151907g69912353m46ee55d094603021@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6910a60907151907g69912353m46ee55d094603021@mail.gmail.com> User-Agent: Mutt/1.5.20 (2009-06-14) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 On Thu, Jul 16, 2009 at 04:07:23AM +0200, Reini Urban wrote: >2009/7/15 Steven Hartland: >> This may or may not help: >> >> According to VC++ debugger it always dies with: >> Unhandled exception at 0x610d089d in perl.exe: 0xC0000005: Access violation >> reading location 0x00000004. >> >> According to gdb 0x610d089d = thread.cc:113 > >Thanks! > >This looks like almost certainly a simple perl bug. Threads was Jerry Heddens >working arena lately, but there are complicated things going in core. >If it's easily reproducible best would be to start with a debugging perl >and break at the point which tries to read from 0x4. I can reproduce it. It looks like perl (or more likely Windows) is adding something extra to the SEH chain. I'm too tired to track it down any further tonight though. cgf -- 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