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Subject:	Re: Windows locks up when pressing Ctrl+S while native process writes to terminal
To:	cygwin AT cygwin DOT com
References:	<327d-5645b680-191-fbe9680 AT 109991231>
From:	Thomas Wolff <towo AT towo DOT net>
Message-ID:	<565214E5.7030507@towo.net>
Date:	Sun, 22 Nov 2015 20:17:57 +0100
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> Hello,
>
> I found a consistent bug that happens every time:
> ...
> - Press Ctrl+S to stop the output in the terminal
>
> Bug #1: It's not possible to unfreeze the output in the terminal with Ctrl+Q. It just stays "stuck"
I confirm this effect and you don't need a fat application to 
demonstrate it. With this Windows cmd script loop.bat:
@echo off
set n=0
:loop
echo %n%
echo %n% >> .log
set /A n=%n% + 1
ping 127.0.0.1 -n 2 > nul
goto loop

run it: ./loop.bat, then use ^S; the script will actually continue to 
run but will not show any more output in a pty-based terminal (works in 
Cygwin console).

> Bug #2: After a few seconds, the disk starts to trash. ...
Thrashing? Might be caused by the apparently-stopped application going 
into some endless-loop activity.

Thomas

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