bug#47067: 28.0.50; [feature/native-comp] Crash while scrolling through dispnew.c

[Eli Zaretskii]

> From: Andrea Corallo <akrl@sdf.org>
> Cc: 47067@debbugs.gnu.org
> Date: Fri, 12 Mar 2021 16:08:33 +0000
> 
> > In my case the top of the stack looks like this:
> >
> >   #0  0x01236788 in arithcompare_driver (nargs=2, args=0x28,
> >       comparison=ARITH_LESS) at data.c:2673
> >   #1  0x01236860 in Flss (nargs=2, args=0x28) at data.c:2691
> >   #2  0x0a872285 in ?? ()
> >   #3  0x01261898 in funcall_lambda (fun=XIL(0xa00000000a0bf230), nargs=5,
> >       arg_vector=0x826a08) at eval.c:3292
> >   #4  0x012601ed in Ffuncall (nargs=6, args=0x826a00) at eval.c:3013
> >   #5  0x0a8e0dbf in ?? ()
> >   #6  0x012601ed in Ffuncall (nargs=1, args=0x826bd8) at eval.c:3013
> >   #7  0x0a8ce041 in ?? ()
> >   #8  0x01261898 in funcall_lambda (fun=XIL(0xa0000000069f2a50), nargs=1,
> >       arg_vector=0x826db8) at eval.c:3292

Btw, what are those "??" there instead of function names?  Do you see
the same on your system?