Re: [cdt-debug-dev] Thread mix-up when debugging multi-threaded programs

[Stefan Bylund <steby@xxxxxxx>]

Hi,

I filed this problem as bug 155464 
(https://bugs.eclipse.org/bugs/show_bug.cgi?id=155464).

Regards,
Stefan


Thomas Fletcher wrote:
>  
>
>   
> > -----Original Message-----
> > From: cdt-debug-dev-bounces@xxxxxxxxxxx 
> > [mailto:cdt-debug-dev-bounces@xxxxxxxxxxx] On Behalf Of Stefan Bylund
> > Sent: Friday, August 25, 2006 4:38 PM
> > To: cdt-debug-dev@xxxxxxxxxxx
> > Subject: [cdt-debug-dev] Thread mix-up when debugging 
> > multi-threaded programs
> >
> > Hi,
> >
> > I recently switched from Eclipse 3.1.2 / CDT 3.0.2 / GDB 6.3 
> > to Eclipse 
> > 3.2 / CDT 3.1 / GDB 6.3 and discovered a very annoying bug in the CDT 
> > Debug view when debugging multi-threaded programs. When you 
> > select the 
> > topmost frame in another thread in the Debug view, that frame will be 
> > selected. However, when trying to singlestep the newly 
> > selected thread, 
> > the topmost frame of the previous thread is erroneously 
> > selected again. 
> > By selecting, the topmost frame of the intended thread again, 
> > you will 
> > notice that the singlestep operation really happened and you can from 
> > here on singlestep in the new thread without being switched back. 
> > However, when selecting a new thread again, the same problem happens 
> > again and you have to reselect the new thread to be able to continue.
> >
> > There seems to be some inconstistency about which thread is 
> > the current 
> > between the Debug view and the CDT debug model or between different 
> > parts of the CDT debug model. This bug did not exist in 
> > Eclipse 3.1.2 / 
> > CDT 3.0.2.
> >
> > I have searched the Eclipse bug database for any bugs about this and 
> > found the bug 151253 "Singlestepping a multi-thread program to fast 
> > results in unexpected behavior" which I thought could be 
> > related to this 
> > problem. Bug 151253 has been fixed in the CDT 3.1.1 branch so I 
> > downloaded the I200608210800 nightly build of CDT 3.1.1 but 
> > unfortunately the thread switching problem problem still exists.
> >
> > Is this a known problem with CDT 3.1? Otherwise, I can file a 
> > bug report.
> >     
>
> This sounds very similar indeed, can you file a new PR to see if we
> can't do something about it.  
>
> Thanks, 
>  Thomas
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