---<<BOOT>>---
GDB: debug ports: uart
GDB: current port: uart
KDB: debugger backends: ddb gdb
KDB: current backend: ddb
Found 4 CPUs in the device tree
Copyright (c) 1992-2025 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 15.0-CURRENT #2 premier_p550-n275255-18cdf7e76be1: Thu Jan 30 21:58:35 GMT 2025
    br@pot:/usr/obj/usr/home/br/dev/freebsd-p550/riscv.riscv64/sys/GENERIC riscv
FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)
WARNING: WITNESS option enabled, expect reduced performance.
VT: init without driver.
Preloaded elf kernel "/boot/kernel/kernel" at 0xffffffc000e80000.
Preloaded TSLOG data "TSLOG" at 0xffffffc000e893d0.
SBI: OpenSBI v1.4
SBI Specification Version: 2.0
CPU 0  : Vendor=SiFive Core=Unknown (Hart 0)
  marchid=0x8000000000000008, mimpid=0x6220425
  MMU: 0x3<Sv39,Sv48>
  ISA: 0x11ad<Atomic,Compressed,Double,Float,Hypervisor,Mult/Div>
  S-mode Extensions: 0x10<Sscofpmf>
real memory  = 17179869184 (16384 MB)
Physical memory chunk(s):
0x0000000080200000 - 0x000000009fffffff, 534773760 bytes (130560 pages)
0x00000000a0100000 - 0x00000000dffeffff, 1072627712 bytes (261872 pages)
0x00000000e1000000 - 0x00000000ffffefff, 520089600 bytes (126975 pages)
0x0000000100000000 - 0x000000045e709fff, 14469341184 bytes (3532554 pages)
0x000000047901b000 - 0x000000047fffffff, 117329920 bytes (28645 pages)
panic: vm_reserv_alloc_page: reserv 0xffffffd3de74f1a0's pages is corrupted
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x36
kdb_backtrace() at kdb_backtrace+0x2c
vpanic() at vpanic+0x16e
panic() at panic+0x26
vm_reserv_alloc_page() at vm_reserv_alloc_page+0x3b2
vm_page_alloc_domain_after() at vm_page_alloc_domain_after+0x132
kmem_back_domain() at kmem_back_domain+0x11e
kmem_malloc_domainset() at kmem_malloc_domainset+0xbc
kmem_malloc() at kmem_malloc+0x18
vm_ksubmap_init() at vm_ksubmap_init+0x52
cpu_startup() at cpu_startup+0xae
mi_startup() at mi_startup+0x1ee
va() at va+0x60
KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      kdb_enter+0x3a: sd      zero,-468(s1)
db> show reg
ra          0xffffffc00032b34e  kdb_enter+0x38
sp          0xffffffc000003ac0  initstack+0x3910
gp          0xffffffc0008d39d8  __global_pointer$
tp          0xffffffc000b56380  __pcpu
t0                0xff00000000
t1              0xff0000000000
t2            0xff000000000000
t3                      0xff00  $d+0xfe2c
t4          0xfefefefefefefeff
t5          0x8080808080808080
t6                           0
s0          0xffffffc000003ae0  initstack+0x3930
s1          0xffffffc0008d5334  mp_ncpus+0x4
s2          0xffffffc000003b58  initstack+0x39a8
s3          0xffffffc0006c0895  $d+0x472
s4          0xffffffc000a6c7c0  thread0_st
s5                       0x100
s6                           0
s7          0xffffffc00088325e  buf_domains+0x6
s8          0xffffffc00063bc55  $d
s9          0xffffffc00062a80e  $d+0x4ca
s10                        0x1
s11         0xffffffc0008d6418  pageproc
a0                        0x12
a1          0xffffffc000a7f180  vpanic.buf
a2                           0
a3                       0x248
a4                           0
a5          0xffffffc00059f0b6  generic_bs_barrier
a6                           0
a7                    0xff0000
sepc        0xffffffc00032b350  kdb_enter+0x3a
sstatus     0x8000000200006100
stval                        0
scause                     0x3
kdb_enter+0x3a: sd      zero,-468(s1)
db>