[   1.6433475] panic: MSan: Uninitialized Pool Memory From pmap_ctor()

[   1.6533573] cpu1: Begin traceback...
[   1.6533573] vpanic() at netbsd:vpanic+0x7c1 sys/kern/subr_prf.c:288
[   1.6633678] panic() at netbsd:panic+0x1ad sys/kern/subr_prf.c:209
[   1.6733669] __msan_warning() at netbsd:__msan_warning+0xe7 kmsan_report_inline sys/kern/subr_msan.c:239 [inline]
[   1.6733669] __msan_warning() at netbsd:__msan_warning+0xe7 sys/kern/subr_msan.c:612
[   1.6933704] pmap_ctor() at netbsd:pmap_ctor+0x892 sys/arch/x86/x86/pmap.c:2812
[   1.7033715] pool_cache_get_slow() at sd0: async, 8-bit transfers, tagged queueing
[   1.7033715] netbsd:pool_cache_get_slow+0xa6e
[   1.7138203] pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0x8c6 sys/kern/subr_pool.c:2577
[   1.7333682] pmap_create() at netbsd:pmap_create+0x52 sys/arch/x86/x86/pmap.c:2860
[   1.7433747] uvmspace_fork() at netbsd:uvmspace_fork+0x435 uvmspace_init sys/uvm/uvm_map.c:4053 [inline]
[   1.7433747] uvmspace_fork() at netbsd:uvmspace_fork+0x435 uvmspace_alloc sys/uvm/uvm_map.c:4025 [inline]
[   1.7433747] uvmspace_fork() at netbsd:uvmspace_fork+0x435 sys/uvm/uvm_map.c:4500
[   1.7533722] uvm_proc_fork() at netbsd:uvm_proc_fork+0x118 sys/uvm/uvm_glue.c:193
[   1.7633688] fork1() at netbsd:fork1+0x18e7 sys/kern/kern_fork.c:475
[   1.7733731] main() at netbsd:main+0xc9e sys/kern/init_main.c:624
[   1.7833696] cpu1: End traceback...
[   1.7833696] fatal breakpoint trap in supervisor mode
[   1.7833696] trap type 1 code 0 rip 0xffffffff802226fd cs 0x8 rflags 0x246 cr2 0 ilevel 0 rsp 0xffffffff85df1600
[   1.7933547] curlwp 0xffffffff859f6a80 pid 0.0 lowest kstack 0xffffffff85dea2c0
Stopped in pid 0.0 (system) at  netbsd:breakpoint+0x5:  leave
breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0x7c1 sys/kern/subr_prf.c:288
panic() at netbsd:panic+0x1ad sys/kern/subr_prf.c:209
__msan_warning() at netbsd:__msan_warning+0xe7 kmsan_report_inline sys/kern/subr_msan.c:239 [inline]
__msan_warning() at netbsd:__msan_warning+0xe7 sys/kern/subr_msan.c:612
pmap_ctor() at netbsd:pmap_ctor+0x892 sys/arch/x86/x86/pmap.c:2812
pool_cache_get_slow() at netbsd:pool_cache_get_slow+0xa6e sys/kern/subr_pool.c:2492
pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0x8c6 sys/kern/subr_pool.c:2577
pmap_create() at netbsd:pmap_create+0x52 sys/arch/x86/x86/pmap.c:2860
uvmspace_fork() at netbsd:uvmspace_fork+0x435 uvmspace_init sys/uvm/uvm_map.c:4053 [inline]
uvmspace_fork() at netbsd:uvmspace_fork+0x435 uvmspace_alloc sys/uvm/uvm_map.c:4025 [inline]
uvmspace_fork() at netbsd:uvmspace_fork+0x435 sys/uvm/uvm_map.c:4500
uvm_proc_fork() at netbsd:uvm_proc_fork+0x118 sys/uvm/uvm_glue.c:193
fork1() at netbsd:fork1+0x18e7 sys/kern/kern_fork.c:475
main() at netbsd:main+0xc9e sys/kern/init_main.c:624
ds          15f0
es          f918
fs          1
gs          2230
rdi         8000000000
rsi         ffff868000000000
rbp         ffffffff85df1600
rbx         0
rdx         ffff818005947da0
rcx         ffffffff859f6a80    lwp0
--db_more--