Pi4 panic: module_register_init: module named ertt not found

A Pi4 8GB panics on boot using -current GENERIC from yesterday. 
The console reports:
.....
Using DTB provided by EFI at 0x7ef0000.
EFI framebuffer information:
addr, size     0x3e22c000, 0x8ca000
dimensions     1920 x 1200
stride         1920
masks          0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000
---<<BOOT>>---
GDB: debug ports: uart
GDB: current port: uart
KDB: debugger backends: ddb gdb
KDB: current backend: ddb
WARNING: Cannot find freebsd,dts-version property, cannot check DTB compliance
Copyright (c) 1992-2021 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 14.0-CURRENT #10 main-c9516b83c1: Fri Nov 12 07:51:46 PST 2021
    [email protected]:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
FreeBSD clang version 12.0.1 ([email protected]:llvm/llvm-project.git llvmorg-12.0.1-0-gfed41342a82f)
WARNING: WITNESS option enabled, expect reduced performance.
VT(efifb): resolution 1920x1200
module firmware already present!
panic: module_register_init: module named ertt not found

cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
vpanic() at vpanic+0x184
panic() at panic+0x44
module_register_init() at module_register_init+0x9c
mi_startup() at mi_startup+0x12c
virtdone() at virtdone+0x6c
KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      kdb_enter+0x44: undefined       f901411f
db> bt
Tracing pid 0 tid 0 td 0xffff000000ddc040
--- swapped out
db> reboot
cpu_reset failed

Thanks for reading,

bob prohaska