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Re: [Bug-gnubg] Stopping a computation

From: Timothy Y. Chow
Subject: Re: [Bug-gnubg] Stopping a computation
Date: Sun, 1 Aug 2010 23:32:22 -0400 (EDT)

On Sat, 31 Jul 2010, Christian Anthon wrote:
> > I set up a position, type "hint" to get a window with evaluations of the
> > moves, click on a move that I want a deeper-ply evaluation of, and click
> > (say) on the 4-ply button.  GNUBG goes into a deep think, which I cannot
> > interrupt.
> >
> There is a small stop button near the lower right corner, which should
> work in all cases. It does for me in the described scenario.

If you mean the octagonal stop sign next to the Position ID/Match ID, it 
does not light up red in the above scenario, and clicking on it has no 

Further investigation suggests that there may be something wrong with my 
build of gnubg.  While I obviously succeeded in getting it to compile, 
it sometimes segfaults.  For example, if in the above scenario I try 
clicking "Rollout" in the hint window and then I interrupt the rollout
by clicking the button labeled "Stop" in the rollout window (not the same 
as the octagonal stop sign mentioned above), then the rollout does stop, 
but then gnubg segfaults.  I am able to reproduce this on demand.

I'm using the July 29 snapshot and have compiled it on an Intel Xeon 
running Fedora 10.  Maybe I should try building from an older, more stable 


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