gdb pty problem [Was: emacs gud-interface is not updated after gdb command execution (maybe because of incomplete output from gdb)]

[Ken Brown]

On 6/1/2016 8:51 AM, Ken Brown wrote:
> On 5/31/2016 5:41 AM, Corinna Vinschen wrote:
>> Any chance you could bisect Cygwin to help finding the culprit?
>
> The culprit is
>
> commit 252a07b0ad3353abcd0fcd9b1b65ff977acd679e
> Author: Takashi Yano <takashi.yano@nifty.ne.jp>
> Date:   Fri Apr 3 13:07:35 2015 +0900
>
>    Cygwin hangs up if several keys are typed during outputting a lot of
> texts.
>
>        * fhandler_tty.cc (fhandler_pty_slave::read): Change calculation of
>        "readlen" not to use "bytes_in_pipe" value directly.
>
>
> Reverting that commit fixes the problem.

Unfortunately, all kinds of other things break.  For example, emacs 
exits immediately, ls produces no output,....

Ken


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