Re: Emacs 21 ediff and Reflection-X?

[Michel Schinz]

gerd.moellmann@t-online.de (Gerd Moellmann) writes:

> "Stefan Monnier <foo@acm.com>" <monnier+gnu.emacs.help/news/@RUM.cs.yale.edu> 
> writes:
> 
> > In his case, it was only a dozen seconds rather than 2 minutes,
> 
> Maybe it was this from etc/PROBLEMS
> 
>   * Emacs pauses for several seconds when changing the default font
> 
>   This has been reported for fvwm 2.2.5 and the window manager of KDE
>   2.1.  The reason for the pause is Xt waiting for a ConfigureNotify
>   event from the window manager, which the window manager doesn't send.
>   Xt stops waiting after a default timeout of usually 5 seconds.

It could very well be the case, yes. In my case (since I guess I'm the
friend Stefan was talking about) it happened with KDE 2.1, lasted
something like 5 seconds and did not happen with other WMs (I tried
Gnome's, KDE 1's, and a few others).

Back then, I had obtained the following backtrace by interrupting
Emacs during the delay. Maybe it can help the original poster...

#0  0x402d517e in __select ()
#1  0x400c168c in __DTOR_END__ ()
#2  0x4009b119 in _XtWaitForSomething ()
#3  0x400a7714 in _wait_for_response ()
#4  0x400a79f8 in RootGeometryManager ()
#5  0x40093e3e in _XtMakeGeometryRequest ()
#6  0x400a54fe in XtSetValues ()
#7  0x400b6991 in XtVaSetValues ()
#8  0x815f937 in EmacsFrameSetCharSize (widget=0x8784080, columns=17, rows=2)
    at widget.c:948
#9  0x80b3c0b in x_set_window_size (f=0x8775ce0, change_gravity=1, cols=17,
    rows=2) at xterm.c:12351
#10 0x8059e47 in Fset_frame_size (frame=1215782112, cols=17, rows=2)
    at frame.c:2383
#11 0x80b7a15 in x_set_frame_parameters (f=0x8775ce0, alist=1479471924)
    at xfns.c:1005
#12 0x80598d0 in Fmodify_frame_parameters (frame=1215782112, alist=1479471924)
    at frame.c:2169
...

I cannot reproduce the problem with my current version of KDE, though
(2.2.1).

Michel.