X-Spam-Check-By: sourceware.org Message-ID: From: "Dill, Jens (END-CHI)" To: cygwin AT cygwin DOT com Subject: cygheap base mismatch detected Date: Thu, 16 Feb 2006 16:00:33 -0600 MIME-Version: 1.0 Content-Type: text/plain Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Chris Taylor writes: > You know, it wouldn't exactly be rocket science to try 1.5.19-4 ... > Dave mentioned that there have been many improvements in the last year on this issue - > 1.5.18-1 is rather dated now. > > It can't hurt to try now, can it? Got me fair and square. I took my IT guy's assurance that he had installed the latest CygWin on my newly-set-up machine. In fact, he had installed it from a download at least 6 months old. Trying the updated stuff now ... ... it didn't solve the problem (CygWin DLL is now at 1.5.19). Thanks anyway. Dave Korn writes: > See, if you think there's a --heap option, you haven't been reading very > /carefully/. And if you don't understand how the size of the .bss section can > have a knock-on effect on the location of the heap, you also haven't been > reading very carefully. I am talking about the --heap option of the "ld" command, which certainly exists on my system. I enter "ld --help" and I see it. And it does appear to be doing what I think it does. What have I not been reading very carefully? Dave Korn futher writes: > Again, if you don't understand that that is a text error message, which > summarizes a situation, which might have an underlying cause, which might be > related to heap size, then you haven't actually been reading all these old > posts too carefully. Of course I understand this. Am I not looking for the underlying cause? I have already followed and dismissed the remaining part of the text message that suggests I look for a duplicate CygWin DLL (not present) and/or reboot (didn't help). From the postings I could find, I got that it was a heap/static memory issue, but not that it was solved. It certainly isn't solved if I'm still running into it. I examined every post I could find after searching for "cygheap base mismatch". It included other stuff about other "cygheap" or "base" or "mismatch", so I presume I saw all that was relevant. If there were other keywords I should have searched for, I apologise for my ignorance. And I can't help the fact that I wasn't following this list before I got involved with CygWin. Dave continues: > > And if CygWin is going to artificially limit how my program > > chooses to allocate memory, it certainly should be documented > > better than this. > > Now you're just being facetious. Describing a bug in terms as if it were a > deliberate decision that someone made just to inconvenience you is just plain > silly. I did not mean to imply that it was a deliberate decision. In my experience as a software engineer, that is seldom the case. We do not deliberately impose this kind of limitation, but when we do become aware of it, we try to help people understand how to deal with it. Dave continues: > I am not going to bother re-writing all the exact same explanations that I > have already written once in those old posts. If you can even /ask/ such an > incoherent question, you haven't got a basic grasp on the facts and I just > really don't want to spend ages explaining the fundamentals of memory maps, > loaders and dlls to you. Get yourself a book or something. I readily admit that my understanding of the fundamentals of memory maps, loaders, and dlls is not up to date. I did understand that stuff in detail once, but that was long ago on another operating system. Since then, I haven't kept up, nor have I had to until now. Nor have I read all your posts on the subject -- only the ones reachable by searching "cygheap base mismatch". But if this forum is not for people whose knowledge is incomplete to ask help from those who know more, what is it for? and where do I go to find the help I need? I'd be glad to get myself a book, learn this stuff, and fix it myself. But my managament expects me to demonstrate right now that CygWin is the best platform for porting our app to Windows, and they haven't given me time to learn all the internals or to fix it myself. To take that time would probably cost me my job. More from Dave: > And the answer to your question will always be that if you want to find a > solution to a bug, you should reproduce it, then debug it, then understand it, > and then fix it. Have reproduced it. Am doing all I can to debug it. Am asking for help in understanding it from those who know more. Will fix it as soon as I know what to do. -- Jens Dill Endeavor Information Systems -- 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/