[Bug 263345] kernel panic: Fatal data abort 14.0-CURRENT #0 main-n254435-8af24219565

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263345

            Bug ID: 263345
           Summary: kernel panic: Fatal data abort 14.0-CURRENT #0
                    main-n254435-8af24219565
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: freebsd@sysctl.cz

Hi,
i tested 14.current kernel on Orange Pi R1 Plus LTS but kernel panicked.
With version 13.0 release is without panic

Loading kernel...
/boot/kernel/kernel text=0x2a8 text=0x850a20 text=0x24be84 data=0x1b9ba8
data=0x0+0x34f000 0x8+0x134028+0x8+0x15b5e1
Loading configured modules...
/boot/kernel/opensolaris.ko text=0x1993 text=0xa3c data=0x4c0+0x6830
0x8+0x1038+0x8+0x8a9
/boot/kernel/zfs.ko text=0xe2308 text=0x23d268 data=0x26bf0+0xbb044
0x8+0x33240+0x8+0x2cbe1
can't find '/etc/hostid'
can't find '/boot/entropy'
Using DTB provided by EFI at 0x80f0000.
EFI framebuffer information:
addr, size     0x0, 0x0
dimensions     0 x 0
stride         0
masks          0x00000000, 0x00000000, 0x00000000, 0x00000000
---<<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 #0 main-n254435-8af24219565: Thu Apr  7 06:33:32 UTC 2022
    root@releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC
arm64
FreeBSD clang version 13.0.0 (git@github.com:llvm/llvm-project.git
llvmorg-13.0.0-0-gd7b669b3a303)
WARNING: WITNESS option enabled, expect reduced performance.
VT: init without driver.
module firmware already present!
real memory  = 1071403008 (1021 MB)
avail memory = 1013641216 (966 MB)
uma_zalloc* called with bad WAIT flags:
#0 0xffff000000718f14 at uma_zalloc_debug+0xcc
#1 0xffff0000007188b4 at uma_zalloc_arg+0x2c
#2 0xffff0000004e3938 at _bt_fill+0xec
#3 0xffff0000004e0ccc at vmem_init+0x248
#4 0xffff000000725ed0 at vm_ksubmap_init+0x134
#5 0xffff000000773344 at cpu_startup+0xbc
#6 0xffff0000003ff948 at mi_startup+0x130
#7 0xffff0000000008b8 at virtdone+0x7c
Starting CPU 1 (1)
Starting CPU 2 (2)
Starting CPU 3 (3)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
arc4random: WARNING: initial seeding bypassed the cryptographic random device
because it was not yet seeded and the knob 'bypass_before_seeding' was enabled.
random: entropy device external interface
Fatal data abort:
  x0: ffffa0003ff43fd8
  x1:                8
  x2: ffff00000088d38d (do_execve.fexecv_proc_title + 7674)
  x3:              78a
  x4:                0
  x5:               69
  x6:                f
  x7:                c
  x8: ffffa0003ff43fd8
  x9:         40000000
 x10: ffffa00000000000
 x11:         3ff43fd8
 x12: 725f696665006966
 x13:  100000102ff0001
 x14: ffff000000b06b00 (lock_class_mtx_sleep + 0)
 x15:                0
 x16:                8
 x17:                c
 x18: ffff000000fa69b0 (initstack + 39b0)
 x19: ffffa000008d7200
 x20: ffff000000ab4010 (efirt_moddata + 0)
 x21: ffff000000910963 (console_pausestr + 13a59)
 x22: ffff000000c6c000 (db_watch_table + b88)
 x23: ffff000000ba0000 (sdta_vfs_vop_vop_spare2_return0 + 20)
 x24: ffff000000dfa000 (gdb_tx_u + aa0)
 x25:                0
 x26: ffff0000008a0f23 (do_execve.fexecv_proc_title + 1b20a)
 x27:          3100000
 x28: ffff000000dfa000 (gdb_tx_u + aa0)
 x29: ffff000000fa69c0 (initstack + 39c0)
  sp: ffff000000fa69b0
  lr: ffff000000157ac4 (efirt_modevents + 78)
 elr: ffff000000157ad0 (efirt_modevents + 84)
spsr:         200000c5
 far: ffffa0003ff43fd8
 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

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