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De : Cygwin <cygwin-boun...@cygwin.com> de la part de André Bleau via Cygwin
<cygwin@cygwin.com>
Envoyé : 15 novembre 2020 15:04
À : The Cygwin Mailing List <cygwin@cygwin.com>
Objet : Re: Failed assertion dialog box
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De : Cygwin <cygwin-boun...@cygwin.com> de la part de William M. (Mike) Miller
via Cygwin <cygwin@cygwin.com>
Envoyé : 15 novembre 2020 08:12
À : The Cygwin Mailing List <cygwin@cygwin.com>
Objet : Re: Failed assertion dialog box
On Sat, Nov 14, 2020 at 11:49 PM Duncan Roe <duncan_...@optusnet.com.au>
wrote:
...
>
> Sorry, should have mentioned running on Win7 Home.
>
> When I try it on my wife's Win10 system, I get the dialog box same as you.
>
That's disappointing. Thanks for the additional information, though.
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I would say we got some useful info:
1- The bug is OS specific; it occurs in Windows 10
2- Three persons were able to reproduce it on Windows 10, which improves the
probability of getting fixed.
- André Bleau
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Here's some more info:
It seems the bug is related to pseudo-console support; that explains why it is
Windows 10 specific.
Experiment:
CYGWIN=disable_pcon /usr/bin/mintty &
In the newly created window:
$ ./a.exe </dev/null >output.txt 2>&1
Aborted (core dumped)
No message box popup.
$ cat output.txt
assertion "false" failed: file "assert.cpp", line 3, function: int main()
In the original mintty window, with empty CYGWIN env variable:
$ ./a.exe </dev/null >output.txt 2>&1
Aborted (core dumped)
A message box pops
AND:
$ cat output.txt
output.txt is empty
So, 2 problems here.
In a CMD Window:
set path=%PATH%D:\Cygwin\bin;
a.exe <NUL: >outcmd.txt 2>&1
1 [main] a 759 cygwin_exception::open_stackdumpfile: Dumping stack trace
to a.exe.stackdump
type outcmd.txt
assertion "false" failed: file "assert.cpp", line 3, function: int main()
1 [main] a 759 cygwin_exception::open_stackdumpfile: Dumping stack trace
to a.exe.stackdump
The bug could be in cygwin or in mintty. Maybe this is something that Thomas
Wolff (mintty author) or Takashi Yano (pseudo-console support expert) would
want to look at.
- André Bleau
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