On Sun, Apr 06, 2003 at 02:13:39PM -0400, Dan Espen wrote:
> 
> There appears to be a bug in repainting the label of a choice
> when a colorset changes.
> 
> I have FvwmForm configured to use a colorset for text.
> 
> If I change a color in the colorset while the FvwmForm default display
> is being displayed, the default form core dumps.
> 
> I've been trying to figure out whats going on, but I haven't made
> any progress.
> 
> Here is the stack:
> 
> (gdb) where
> #0  0x400ec014 in XSetFont () from /usr/X11R6/lib/libX11.so.6
> #1  0x4015b708 in _Xutf8GenericDrawImageString ()
>    from /usr/X11R6/lib/libX11.so.6
> #2  0x4015bb97 in _XmbGenericDrawString () from /usr/X11R6/lib/libX11.so.6
> #3  0x4010e53b in XmbDrawString () from /usr/X11R6/lib/libX11.so.6
> #4  0x080540c6 in FlocaleDrawString (dpy=0x807be20, flf=0x808dac8, 
>     fws=0x808da58, flags=1) at ../../fvwm2_5_7/libs/Flocale.c:1411
> #5  0x0804e49b in RedrawFrame (pev=0x0)
>     at ../../../fvwm2_5_7/modules/FvwmForm/FvwmForm.c:1549
> #6  0x08050194 in ParseActiveMessage (
>     buf=0x8073b5c "Colorset 0 0 bdf7 1f f800 8c71 0 0 0 0 64 0 0 0 0 0 0 0 0 
> 0 64") at ../../../fvwm2_5_7/modules/FvwmForm/FvwmForm.c:2402
> #7  0x0804fed3 in ReadFvwm ()
>     at ../../../fvwm2_5_7/modules/FvwmForm/FvwmForm.c:2293
> #8  0x0805048b in MainLoop ()
>     at ../../../fvwm2_5_7/modules/FvwmForm/FvwmForm.c:2499
> #9  0x08050912 in main (argc=7, argv=0xbffff8b4)
>     at ../../../fvwm2_5_7/modules/FvwmForm/FvwmForm.c:2699
> #10 0x401ea5b0 in __libc_start_main () from /lib/libc.so.6
> 
> Here is the pointer "flf":
> 
> (gdb) up 4
> #4  0x080540c6 in FlocaleDrawString (dpy=0x807be20, flf=0x808dac8, 
>     fws=0x808da58, flags=1) at ../../fvwm2_5_7/libs/Flocale.c:1411
> 1411                    XmbDrawString(
> (gdb) print flf
> $1 = (FlocaleFont *) 0x807be20
> 
> Notice that the value for "flf" is really the value for "dpy".
> The other args print OK.
> 
> I'm not sure whats going on.
> 

I do not know too. I cannot reproduce your core dump, but I can
reproduce others which leads to similar strange Flocale gdb output.
There is surely a memory bug in Flocale (maybe in the charset
stuff).

Can you run purify on this if this make sense? If not I will try
to run others memory debugging tools.

Regards, Olivier
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