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Subject:	Re: gdb 7.11.1-2 started within emacs fails
To:	cygwin AT cygwin DOT com
References:	<d4a9e76c90c44c7cb0fa915a2589c0f6 AT vsrv060ex03 DOT ssd DOT fsi DOT com> <207e93bf-8f7e-57a3-1abc-cc645c79020c AT cornell DOT edu> <c22d24beaf74442c876eb45e9d664bd4 AT vsrv060ex03 DOT ssd DOT fsi DOT com> <CAH5rLZU9808GtL8KeaZYrYS0zrORyJXE4+jyiBNmFoSccd-z3g AT mail DOT gmail DOT com> <cf9fc69a153f41f7b4c0296774a85f96 AT vsrv060ex03 DOT ssd DOT fsi DOT com>
From:	Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Message-ID:	<5e89687c-41fc-b7ee-55af-4f32b52ced9b@dronecode.org.uk>
Date:	Thu, 20 Oct 2016 15:08:41 +0100
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In-Reply-To:	<cf9fc69a153f41f7b4c0296774a85f96@vsrv060ex03.ssd.fsi.com>

On 19/10/2016 17:46, Rockefeller, Harry wrote:
>>>> I can confirm that this happens also with gdb-7.11.1-1 but not
>>>> gdb-7.10.1-1.  (I tested on x86_64, since gdb-7.10.1-1 is broken on x86.)
>>>> It also fails with M-x gdb instead of M-x gud-gdb, but with a different error message:
>>>> Failed to resume program execution (ContinueDebugEvent failed, error
>>>> 87) Ken
>>>
>>> I tried using 'ddd' instead of emacs and gdb aborts with the same readline ... message above.
>
>> Any progress on the above issue? I recently updated my gdb and am running into the same problem.
>
> No progress I am aware of.  I switched over to 64-bit Cygwin which uses gdb-7.10.1-1 to avoid this problem.

I've done some investigation, and the problem seems to be that when run 
from emacs or ddd, the inferior process doesn't end up in it's own 
process group, but I haven't made any progress on why that is happening.

per [1], I think I've fixed the problem with x86 and gdb-7.10.1-1, so it 
should no longer be necessary to use gdb-7.11.1 to avoid those problems, 
but obviously this needs to be fixed at some point...

[1] https://cygwin.com/ml/cygwin/2016-10/msg00243.html

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