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Date: Thu, 3 Aug 2006 22:01:39 +0200
From: "Reini Urban" <rurban AT x-ray DOT at>
To: cygwin AT cygwin DOT com
Subject: Re: Windows popup/message box?
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2006/8/3, Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>:
> On Wed, 2 Aug 2006, Igor Peshansky wrote:
>
> > $ perl -e 'use Win32::GUI qw(MessageBox); MessageBox(0, "message", "title", 64);'
> > Can't load '/usr/lib/perl5/site_perl/5.8/cygwin/auto/Win32/GUI/GUI.dll' for module Win32::GUI: No such file or directory at /usr/lib/perl5/5.8/cygwin/DynaLoader.pm line 230.
> >  at -e line 1
> > Compilation failed in require at -e line 1.
> > BEGIN failed--compilation aborted at -e line 1.
> >
> > At this point the perl.exe process started consuming 100% of the CPU and
> > allocating memory like crazy.  I let it get to 1.2G before killing it
> > (took about 35 minutes).  It did react to a Ctrl-C in the parent bash
> > window.
> >
> > I wasn't able to open another Cygwin window and attach to the hanging
> > process with strace, because my system slowed down to a crawl and stopped
> > responding to most window messages.  Perhaps I'll repeat the experiment
> > someday.
>
> Actually, in a typical "D'oh!" moment I realized that I can simply start
> the perl process under strace -- if I kill it early enough, it doesn't
> affect my system too much.  The strace wasn't very illuminating as to the
> cause of not finding the DLL (Windows error 126), but it did have a weird
> sequence of mmap()/munmap() that seems to be the cause of 100% CPU and the
> virtual memory allocation.

Interesting. Does it go away a rebaseall?

> If you're interested in tracking this down further, I can send you the
> strace off-list.

If it doesn't go away, yes please.  Something for p5p maybe
-- 
Reini Urban
http://phpwiki.org/              http://murbreak.at/
http://spacemovie.mur.at/   http://helsinki.at/

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