Trouble booting the April 23 snapshot for rpi3

[bob prohaska]

In trying to boot the April 23 RPI3 snapshot the machine is
reporting what looks like an old problem:

---<<BOOT>>---
KDB: debugger backends: ddb
KDB: current backend: ddb
Copyright (c) 1992-2020 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 13.0-CURRENT #0 r360211: Thu Apr 23 08:12:13 UTC 2020
    root at releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
FreeBSD clang version 10.0.0 (git at github.com:llvm/llvm-project.git llvmorg-10.0.0-0-gd32170dbd5b)
WARNING: WITNESS option enabled, expect reduced performance.
VT(efifb): resolution 1920x1200
module firmware already present!
KLD file umodem.ko is missing dependencies
Starting CPU 1 (1)
panic: Failed to start CPU 1 (1), error -1

cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
	 pc = 0xffff00000075c2d4  lr = 0xffff0000001088b8
	 sp = 0xffff000000010590  fp = 0xffff000000010790

db_trace_self_wrapper() at vpanic+0x194
	 pc = 0xffff0000001088b8  lr = 0xffff000000415a74
	 sp = 0xffff0000000107a0  fp = 0xffff0000000107f0

vpanic() at panic+0x44
	 pc = 0xffff000000415a74  lr = 0xffff00000041581c
	 sp = 0xffff000000010800  fp = 0xffff0000000108b0

panic() at start_cpu+0x224
	 pc = 0xffff00000041581c  lr = 0xffff00000076a5b0
	 sp = 0xffff0000000108c0  fp = 0xffff0000000108c0

start_cpu() at cpu_init_fdt+0x34
	 pc = 0xffff00000076a5b0  lr = 0xffff0000007698b0
	 sp = 0xffff0000000108d0  fp = 0xffff000000010930

cpu_init_fdt() at ofw_cpu_early_foreach+0x180
	 pc = 0xffff0000007698b0  lr = 0xffff00000020c648
	 sp = 0xffff000000010940  fp = 0xffff000000010990

ofw_cpu_early_foreach() at mp_start+0x8c
	 pc = 0xffff00000020c648  lr = 0xffff000000470490
	 sp = 0xffff0000000109a0  fp = 0xffff0000000109f0

mp_start() at mi_startup+0x12c
	 pc = 0xffff000000470490  lr = 0xffff0000003a9ac4
	 sp = 0xffff000000010a00  fp = 0xffff000000010a20

mi_startup() at virtdone+0x5c
	 pc = 0xffff0000003a9ac4  lr = 0xffff00000000108c
	 sp = 0xffff000000010a30  fp = 0x0000000000000000

KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      0
db> 
db> bt
Tracing pid 0 tid 0 td 0xffff000000cedb80
db_trace_self() at db_stack_trace+0xfc
         pc = 0xffff00000075c2d4  lr = 0xffff000000105cbc
         sp = 0xffff000000010180  fp = 0xffff000000010190

db_stack_trace() at db_command+0x228
         pc = 0xffff000000105cbc  lr = 0xffff000000105920
         sp = 0xffff0000000101a0  fp = 0xffff000000010250

db_command() at db_command_loop+0x54
         pc = 0xffff000000105920  lr = 0xffff0000001056c8
         sp = 0xffff000000010260  fp = 0xffff0000000102b0

db_command_loop() at db_trap+0xf4
         pc = 0xffff0000001056c8  lr = 0xffff000000108a20
         sp = 0xffff0000000102c0  fp = 0xffff0000000104e0

db_trap() at kdb_trap+0x1cc
         pc = 0xffff000000108a20  lr = 0xffff00000045e10c
         sp = 0xffff0000000104f0  fp = 0xffff000000010550
        
kdb_trap() at do_el1h_sync+0xf4
         pc = 0xffff00000045e10c  lr = 0xffff00000077a8a4
         sp = 0xffff000000010560  fp = 0xffff0000000105b0

do_el1h_sync() at handle_el1h_sync+0x78
         pc = 0xffff00000077a8a4  lr = 0xffff00000075e878
         sp = 0xffff0000000105c0  fp = 0xffff000000010700

handle_el1h_sync() at kdb_enter+0x34
         pc = 0xffff00000075e878  lr = 0xffff00000045d730
         sp = 0xffff000000010710  fp = 0xffff000000010790

kdb_enter() at vpanic+0x1b0
         pc = 0xffff00000045d730  lr = 0xffff000000415a90
         sp = 0xffff0000000107a0  fp = 0xffff0000000107f0

vpanic() at panic+0x44
         pc = 0xffff000000415a90  lr = 0xffff00000041581c
         sp = 0xffff000000010800  fp = 0xffff0000000108b0
        
panic() at start_cpu+0x224
         pc = 0xffff00000041581c  lr = 0xffff00000076a5b0
         sp = 0xffff0000000108c0  fp = 0xffff0000000108c0

start_cpu() at cpu_init_fdt+0x34
         pc = 0xffff00000076a5b0  lr = 0xffff0000007698b0
         sp = 0xffff0000000108d0  fp = 0xffff000000010930

cpu_init_fdt() at ofw_cpu_early_foreach+0x180
         pc = 0xffff0000007698b0  lr = 0xffff00000020c648
         sp = 0xffff000000010940  fp = 0xffff000000010990

ofw_cpu_early_foreach() at mp_start+0x8c
         pc = 0xffff00000020c648  lr = 0xffff000000470490
         sp = 0xffff0000000109a0  fp = 0xffff0000000109f0

mp_start() at mi_startup+0x12c
         pc = 0xffff000000470490  lr = 0xffff0000003a9ac4
         sp = 0xffff000000010a00  fp = 0xffff000000010a20
        
mi_startup() at virtdone+0x5c
         pc = 0xffff0000003a9ac4  lr = 0xffff00000000108c
         sp = 0xffff000000010a30  fp = 0x0000000000000000

db> 

Reboot fails  with cpu reset failed. This looks to my eye like
the problem discussed in the thread "Re: Panic on Rpi3 at r358976"
but that conversation ended in mid-March and I thought was resolved.

Is anybody else having trouble with this snapshot? The filename is
FreeBSD-13.0-CURRENT-arm64-aarch64-RPI3-20200423-r360211.img

Thanks for reading,

bob prohaska