RPI4 panic on boot with -current

Might this be related to "RPi4B's got a PMIC replacement,..." reported 4/3 ?

A Pi4 (mechanical disk only, no microsd) trying to boot a fresh build of 
-current reports:

Resetting system ... 

U-Boot 2020.10 (Mar 04 2021 - 04:32:31 +0000)

DRAM:  7.9 GiB
RPI 4 Model B (0xd03114)
MMC:   mmc@7e300000: 1, emmc2@7e340000: 0
Loading Environment from FAT... sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_send_command: MMC: 1 busy timeout increasing to: 200 ms.
sdhci_send_command: MMC: 1 busy timeout increasing to: 400 ms.
sdhci_send_command: MMC: 1 busy timeout increasing to: 800 ms.
sdhci_send_command: MMC: 1 busy timeout increasing to: 1600 ms.
sdhci_send_command: MMC: 1 busy timeout increasing to: 3200 ms.
sdhci_send_command: MMC: 1 busy timeout.
In:    serial
Out:   vidconsole
Err:   vidconsole
Net:   eth0: ethernet@7d580000
PCIe BRCM: link up, 5.0 Gbps x1 (SSC)
starting USB...
Bus xhci_pci: Register 5000420 NbrPorts 5
Starting the controller
USB XHCI 1.00
scanning bus xhci_pci for devices... 6 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
Hit any key to stop autoboot:  0 
Card did not respond to voltage select!
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_send_command: MMC: 1 busy timeout.

Device 0: Vendor: SABRENT  Rev: 0204 Prod: 
            Type: Hard Disk
            Capacity: 953869.7 MB = 931.5 GB (1953525168 x 512)
... is now current device
Scanning usb 0:1...
Found EFI removable media binary efi/boot/bootaa64.efi
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_set_clock: Timeout to wait cmd & data inhibit
sdhci_send_command: MMC: 1 busy timeout.
Scanning disk [email protected]...
Disk [email protected] not ready
Card did not respond to voltage select!
Scanning disk [email protected]...
Disk [email protected] not ready
Scanning disk usb_mass_storage.lun0...
** Unrecognized filesystem type **
Found 3 disks
No EFI system partition
BootOrder not defined
EFI boot manager: Cannot load any image
1259292 bytes read in 5 ms (240.2 MiB/s)
libfdt fdt_check_header(): FDT_ERR_BADMAGIC
Booting /efi\boot\bootaa64.efi

[whitespace trimmed]

Consoles: EFI console  
    Reading loader env vars from /efi/freebsd/loader.env
Setting currdev to disk0p1:
FreeBSD/arm64 EFI loader, Revision 1.1
(Thu Mar  4 07:32:03 UTC 2021 [email protected])

   Command line arguments: loader.efi
   Image base: 0x39cfc000
   EFI version: 2.80
   EFI Firmware: Das U-Boot (rev 8224.4096)
   Console: comconsole (0)
   Load Path: /efi\boot\bootaa64.efi
   Load Device: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/UsbClass(0x0,0x0,0x9,0x0,0x3)/UsbClass(0x152d,0x1561,0x0,0x0,0x0)/HD(1,0x01,0,0x81f,0x18fa8)
Trying ESP: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/UsbClass(0x0,0x0,0x9,0x0,0x3)/UsbClass(0x152d,0x1561,0x0,0x0,0x0)/HD(1,0x01,0,0x81f,0x18fa8)
Setting currdev to disk0p1:
Trying: /VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/UsbClass(0x0,0x0,0x9,0x0,0x3)/UsbClass(0x152d,0x1561,0x0,0x0,0x0)/HD(2,0x01,0,0x197c7,0x746ed5e9)
Setting currdev to disk0p2:
/
Loading /boot/defaults/loader.conf
Loading /boot/defaults/loader.conf
Loading /boot/device.hints
Loading /boot/loader.conf
Loading /boot/loader.conf.local
Loading kernel...
/boot/kernel/kernel text=0x2a8 text=0x851220 text=0x24be84 data=0x1b9ba8 data=0x0+0x34f000 syms=[0x8+0x134028+0x8+0x15b5e1]
Loading configured modules...
/boot/kernel/filemon.ko text=0x1867 text=0x2558 data=0x510+0x20 syms=[0x8+0xd08+0x8+0x7c9]
/boot/kernel/umodem.ko text=0x2100 text=0x13a0 data=0x6d8+0x10 syms=[0x8+0xf18+0x8+0xb5c]
loading required module 'ucom'
/boot/kernel/ucom.ko text=0x2590 text=0x2f00 data=0x8e0+0x858 syms=[0x8+0x1290+0x8+0xbd5]
/boot/entropy size=0x1000
/etc/hostid size=0x25

Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/boot/kernel/kernel]...               
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) 1992-2022 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 #40 main-aa597d4049-dirty: Fri Apr  8 11:44:42 PDT 2022
    [email protected]:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC arm64
FreeBSD clang version 13.0.0 ([email protected]:llvm/llvm-project.git llvmorg-13.0.0-0-gd7b669b3a303)
WARNING: WITNESS option enabled, expect reduced performance.
VT(efifb): resolution 1920x1200
module firmware already present!
real memory  = 8441835520 (8050 MB)
avail memory = 8206352384 (7826 MB)
Starting CPU 1 (1)
Starting CPU 2 (2)
Starting CPU 3 (3)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
random: unblocking device.
random: entropy device external interface
Fatal data abort:
  x0: ffffa0003b25dad0
  x1:                8
  x2: ffff00000088db8d (do_execve.fexecv_proc_title + 7674)
  x3:              78a
  x4:                0
  x5:               69
  x6:         40a7152f
  x7:         f2db3c10
  x8: ffffa0003b25dad0
  x9:        200000000
 x10: ffffa00000000000
 x11:         3b25dad0
 x12: 725f696665006966
 x13:  100000102ff0001
 x14: ffff000000b07300 (lock_class_mtx_sleep + 0)
 x15:                0
 x16:                8
 x17:         f4b3707d
 x18: ffff000000fa79b0 (initstack + 39b0)
 x19: ffffa000008db380
 x20: ffff000000ab4810 (efirt_moddata + 0)
 x21: ffff000000911163 (console_pausestr + 13a59)
 x22: ffff000000c6d000 (db_watch_table + b88)
 x23: ffff000000ba1000 (compiler_version + 20)
 x24: ffff000000dfb000 (gdb_tx_u + aa0)
 x25:                0
 x26: ffff0000008a1723 (do_execve.fexecv_proc_title + 1b20a)
 x27:          3100000
 x28: ffff000000dfb000 (gdb_tx_u + aa0)
 x29: ffff000000fa79c0 (initstack + 39c0)
  sp: ffff000000fa79b0
  lr: ffff000000157ac4 (efirt_modevents + 78)
 elr: ffff000000157ad0 (efirt_modevents + 84)
spsr:         200000c5
 far: ffffa0003b25dad0
 esr:         96000007
panic: vm_fault failed: ffff000000157ad0 error 1
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+0x174
panic() at panic+0x44
data_abort() at data_abort+0x2f0
handle_el1h_sync() at handle_el1h_sync+0x10
--- exception, esr 0x96000007
efirt_modevents() at efirt_modevents+0x84
module_register_init() at module_register_init+0xc4
mi_startup() at mi_startup+0x130
virtdone() at virtdone+0x7c
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      kdb_enter+0x44: undefined       f902011f
db> bt
Tracing pid 0 tid 100000 td 0xffff000000dfc0e0
db_trace_self() at db_trace_self
db_stack_trace() at db_stack_trace+0x11c
db_command() at db_command+0x368
db_command_loop() at db_command_loop+0x54
db_trap() at db_trap+0xf8
kdb_trap() at kdb_trap+0x1cc
handle_el1h_sync() at handle_el1h_sync+0x10
--- exception, esr 0xf2000000
kdb_enter() at kdb_enter+0x44
vpanic() at vpanic+0x1b0
panic() at panic+0x44
data_abort() at data_abort+0x2f0
handle_el1h_sync() at handle_el1h_sync+0x10
--- exception, esr 0x96000007
efirt_modevents() at efirt_modevents+0x84
module_register_init() at module_register_init+0xc4
mi_startup() at mi_startup+0x130
virtdone() at virtdone+0x7c
db> 

followed by

db> reboot
cpu_reset failed

After power cycle the machine rebooted to
FreeBSD 14.0-CURRENT #34 main-79c4c4be96-dirty: Tue Apr  5 09:26:19 PDT 2022
without obvious problems. "Dirty" is in reference to /usr/src/tests, I've
refrained from tampering with the sources.

Thanks for reading, 

bob prohaska