bug#57789: Emacs 28.1 clone build with native compilation crashes on s390x

[Gerd Möllmann]

Rob Browning <rlb@defaultvalue.org> writes:

> Rob Browning <rlb@defaultvalue.org> writes:
>
>> Starting from scratch with the emacs-28.1 commit I can reproduce the
>> failure when building via
>
> Oops, meant the emacs-28.2 commit for all of that testing.

Looking at Rob's backtrace, 

#0  mark_object (arg=<optimized out>) at alloc.c:6809
#1  0x000002aa001a8ee6 in mark_objects (n=<optimized out>, obj=0x2aa00ac54a8) 
at alloc.c:6607
#2  mark_vectorlike (header=0x2aa00ac54a0) at alloc.c:6382
#3  0x000002aa001a8ee6 in mark_objects (n=<optimized out>, obj=0x2aa007f4ca8) 
at alloc.c:6607
#4  mark_vectorlike (header=0x2aa007f4ca0) at alloc.c:6382
#5  0x000002aa001a8ee6 in mark_objects (n=<optimized out>, obj=0x2aa007c3b10) 
at alloc.c:6607
#6  mark_vectorlike (header=0x2aa007c3b08) at alloc.c:6382
#7  0x000002aa001a7c3e in visit_static_gc_roots (visitor=...) at alloc.c:5926

and seeing frame#7, would it be a way forward to determine which
staticpro (I assume it is a staticpro) that is?  Maybe that can give a
clue which one can then use together with a bisect, perhaps?

WDYT?