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Subject:	Re: gdb pty problem [Was: emacs gud-interface is not updated after gdb command execution (maybe because of incomplete output from gdb)]
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From:	Ken Brown <kbrown AT cornell DOT edu>
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Date:	Wed, 1 Jun 2016 10:33:16 -0400
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On 6/1/2016 10:28 AM, Corinna Vinschen wrote:
> Hi Ken,
>
> On Jun  1 09:02, Ken Brown wrote:
>> 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 DOT yano AT nifty DOT ne DOT 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,....
>
> Are you sure?  I just tried it myself and ls as well as emacs work
> fine for me.

It works for me now too.  I must have done something wrong the first 
time I tried.

Thanks for rechecking.

Ken


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