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Date:	Sun, 21 Jun 2015 15:29:40 -0400
From:	Ken Brown <kbrown AT cornell DOT edu>
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CC:	Eli Zaretskii <eliz AT gnu DOT org>
Subject:	Re: gdb arbitrarily starting threads
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On 6/20/2015 4:51 PM, William M. (Mike) Miller wrote:
> On Sat, Jun 20, 2015 at 4:42 PM, Ken Brown <kbrown AT cornell DOT edu> wrote:
>> On 6/20/2015 4:02 PM, William M. (Mike) Miller wrote:
>>>
>>> Thanks for the reply.  My concern, however, isn't that new threads are
>>> being created; it's that when gdb does this, it sets the state of all
>>> threads, including my main thread, to "(running)" so that I can't
>>> single-step through my program any more.  If I try to say "next", I
>>> get the error:
>>>
>>>       Cannot execute this command while the selected thread is running.
>>>
>>> But I did nothing overt to start my thread.
>>>
>>> It never used to do this, but it happens regularly now.

Eli Zaretskii has asked me to pass on the following information:

On 6/21/2015 2:43 PM, Eli Zaretskii wrote:
 > Please point the people discussing this on the Cygwin list to these 2
 > threads on GDB mailing lists:
 >
 >    https://sourceware.org/ml/gdb/2015-03/msg00024.html
 >    https://sourceware.org/ml/gdb/2015-06/msg00005.html
 >    https://sourceware.org/ml/gdb-patches/2015-06/msg00215.html
 >
 > Bottom line: (1) it happens on Windows 7, not just on 8.1; (2) it
 > happens in the MinGW build of GDB, and so is not specific to threads
 > started by Cygwin for its own purposes; (3) it will most probably be
 > solved soon, since it is currently blocking the release of the
 > upcoming GDB 7.10.

Please keep Eli in the CC on any replies since he is not subscribed to the 
Cygwin list.

Ken

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