draging scrollbar ABORT emacs

[Mathieu Geli]

Hi,

my emacs receive a SIGABRT in this situation :

I open a simple emacs typing 'emacs' in a shell. I got a *scratch* buffer in 
front of me.
Type something e.g "blabla"
Split the main frame vertically ( C-x 3 )
Change the focused buffer to be the right one.
Move the cursor to the end of the line ( C-e )
Drag the bottom handle of the scrollbar horizontally to the right slowly
At a certain point I should begin to see my text begginning with a left arrow  
'<-bla'
If I go further than the step '<- ' with the mouse, my emacs is aborted by a 
SIGABRT.
If the left arrow '<-' is not here, the bug is not happening. (That's why we 
have done the C-e before)
That's it.
I hope I'm clear enough, and that I'm not bothering you with an already known 
bug...

Versions tested :
GNU Emacs 21.3.1 (sparc-sun-solaris2.7, X toolkit) of 2003-12-10
GNU Emacs 21.3.1 (i386-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 
2004-04-07 on raven, modified by Debian

---
Mathieu