Re: [Orgmode] Strange bug, request for more info

[Carsten Dominik]

Hi Jost,

I think I and many other people here owe you a beer.  You have finally
succeeded to make a reproducible case for this bug.  This is a bug  
somewhere
deep inside Emacs where some routine seems to call `set-window-start'
without the no-force argument behind my back.  I have a work-around,  
so I
am optimistic that this dreaded bug will have disappeared in the next  
release.

Thanks!

- Carsten

On Feb 6, 2008, at 7:08 PM, Jost Burkardt wrote:

> Carsten Dominik <address@hidden> writes:
>
> > Hi everyone,
> >
> > The bug happens when being in the agenda and trying to goto or show
> > the origin location of an agenda entry by pressing SPC or RET.
> > John reports that sometimes (for him several times a day),
> > the other window shows a completely different location.
> > The most weird part of it is that going back to the agenda buffer
> > and then trying the exact same command again, everything works
> > fine!  This is driving me crazy, and I'd love to find and fix
> > this problem.
> >
> > So please, if anyone sees the same bug, try to give as as much as  
> > info
> > as possible.  How often does it happen, under what circumstances,
> > what is your setup etc etc.
>
> Hi,
>
> I think I've finally found a example to reproduce this bug. The sample
> orgfile looks like this
>
> ---- orgfile starts here ---
> # -*- mode: org -*-
>
> * Tasks
> ** DONE some Task
> ** DONE some Task
> ** DONE some Task
> ** DONE some Task
> ** DONE some Task
> ** DONE some Task
> .......
> * calendar
> ** some calendar entry
>   <2008-02-10 Do 18:30>
> ---- orgfile ends here ----
>
> instead of "......." please add many more similar lines (approx. 50)  
> of "** DONE some Task"
>
> What I do is the following
> - hide all sublevels via C-u TAB
> - move cursor to  "* Tasks" cycle with TAB
> - move cursor to second entry
> - M-x calendar
> - M-x org-calendar-goto-agenda
> - within agenda move cursor to calendar entry
> - press TAB
>
> What happens is that focus is switched to org-file, but the cursor  
> sits
> on the 8th entry of "** DONE Some Task". When I move the cursor to  
> the end
> of my orgfile, I can see that the calendar entry is now correctly
> reveal. Just the cursor position seems to be wrong. I tried using
> edebug, but when stepping manually through org-agenda-goto, everything
> went just fine and the cursor was positioned on the correct line?
>
> When generating the above sample orgfile, the following aspects seemed
> important.
> - at least two lines before the entry "* Tasks", otherwise focus  
> worked
>  correctly
> - many subentries below "* Tasks", I had the impression that frame has
>  to be filled
> - focus: the sublevels of "* calendar" must be hidden, maybe that
>  explains, why position is found correctly on the second try.
>
> I tried this on emacs 22.1.90 on windows with org-5.19a. I'll will  
> test
> this also with 5.20 (I just saw you did release it - I'm very much
> looking forward to this release - Thank you !!)
>
> Please inform me, if you need further information.
>
> Best regards,
>
> --
> Jost