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bug#9767: 24.0.90; gdb initialization on Cygwin

From: Ken Brown
Subject: bug#9767: 24.0.90; gdb initialization on Cygwin
Date: Sat, 22 Oct 2011 16:58:16 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1

For the third (and final?) time, I think I've figured out the problem. It has nothing to do with emacs or select, but is simply a problem with Cygwin's gdb. When the current Cygwin gdb is given too many input lines before having its output read, it sometimes stops producing output and waits for the user to press Return.

This is what was happening during the initialization of M-x gdb, and that explains why I could work around the problem by inserting (sleep-for .1) before the initialization was finished.

I've found a way to reliably reproduce this, and I've reported it to the Cygwin list.

I'm not closing this bug report yet because I want to wait and see how the Cygwin problem is resolved. It may still be necessary to use some kind of workaround.

Thanks to all who tried to help and who put up with my mistakes and misunderstandings.


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