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From: Ariel Burbaickij <ariel.burbaickij@gmail.com>
Date: Wed, 22 Jun 2022 10:49:38 +0200
Message-ID: <CANeJNHr-DgdM9h=pNPaPQcB44Jds2tNbcAU1Yw=n5Mxk_n_qHg@mail.gmail.com>
Subject: Re: dumper does not dump
To: Jon Turney <jon.turney@dronecode.org.uk>
Cc: The Cygwin Mailing List <cygwin@cygwin.com>
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> Can you point out what documentation mentions that so we can fix it!
The very source of it:
https://sourceware.org/legacy-ml/cygwin-patches/2000-q3/msg00041.html ;-).

OK, yes, I see that -c is not there anymore -- the things, they are
changing.  Let me try what you suggest and see where it brings me.

Kind Regards
Ariel Burbaickij


Have just followed what is there.


On Wed, Jun 22, 2022 at 10:38 AM Jon Turney <jon.turney@dronecode.org.uk>
wrote:

> On 22/06/2022 08:19, Ariel Burbaickij wrote:
> > Hello cygwin group,
> > I am facing the following issue:
> > there is GTK application reproducibly "core dumping"  (in quotation marks
> > because so far there is no comfortable core file that we know and learnt
> to
> > love from native *NIX, of course) upon me selecting a certain menu entry.
> > Now, I went and enabled dumper (version 3.3.5) by means of setting CYGWIN
> > environment variable to
> >
> > error_start=c:\cygwin64\bin\dump.cmd
> >
> > with backslashes properly escaped and dump.cmd  set to:
> > c:\cygwin64\bin\dumper.exe -d -c %1 %2
>
> '-c' is not a valid option for dumper.
>
> Can you point out what documentation mentions that so we can fix it!
>
> It's awkward because a new terminal is started for dumper, which
> disappears almost immediately, but if you add 'pause' at the end of your
> .cmd file, you should see it.
>
> But I think you are overcomplicating things here: 'export
> CYGWIN=error_start=dumper' should work (or even 'error_start=gdb' if
> you're just going to load the core dump into gdb afterwards...)
>
> > I am on Windows 10 here.
> >
> > Now, all I get for it is following:
> >
> > *** starting debugger for pid 2876, tid 16112
> >
> > after which it hangs indefinitely and nothing more happens.
>
> Cygwin is waiting for the debugger to attach, indefinitely since it
> never happens here.
>
> > Any ideas, suggestions how to move on here ?
>

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