Segfault in asteroid.zip

[dankcushions]

Using RPi4 (ARMv8) 32-bit, RA 1.9.4:

Thread 1 "retroarch" received signal SIGSEGV, Segmentation fault.
0xaef7a0e0 in clever_mark_dirty () at src/vidhrdw/vector.c:796
796	src/vidhrdw/vector.c: No such file or directory.
(gdb) bt
#0  0xaef7a0e0 in clever_mark_dirty () at src/vidhrdw/vector.c:796
#1  0xaef7a484 in vector_vh_update (bitmap=0x9cd288, full_refresh=0) at src/vidhrdw/vector.c:853
#2  0xaef7ac40 in vector_vh_screenrefresh (bitmap=0x9cd288, full_refresh=0) at src/vidhrdw/vector.c:966
#3  0xaef16f40 in draw_screen (_bitmap_dirty=0) at src/mame.c:568
#4  0xaef16e2c in updatescreen () at src/mame.c:538
#5  0xaef5ca28 in cpu_vblankcallback (param=0) at src/cpuintrf.c:2042
#6  0xaef6ae7c in timer_schedule_cpu (cpu=0x9dd484, cycles=0xafb79968 <cycles_running>) at src/timer.c:514
#7  0xaef588ec in cpu_run () at src/cpuintrf.c:809
#8  0xaef172f0 in run_machine () at src/mame.c:665
#9  0xaef15b34 in run_game (game=1610) at src/mame.c:158
#10 0xaf64a684 in run_thread_proc () at src/libretro/libretro.c:374
#11 0xaf657f58 in co_switchPython Exception <class 'gdb.MemoryError'> Cannot access memory at address 0xfffffff0: 
(gdb) 

according to compatibility lists this has worked on lesser Pis in the past, but I bisected back to 9ab5058 and the same error (bt is for this that commit)