uvm_fault(0xffffffff82a09df8, 0xffff80001a64f004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*345371 15897 0 0x2 0 0K syz-executor.2
160170 86091 0 0x14000 0x200 1 reaper
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8063731a58,ffff800029206258,ffff800029206288) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85
vfs_lookup(ffff800029206228) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560
namei(ffff800029206228) at namei+0x36a sys/kern/vfs_lookup.c:244
dounlinkat(ffff800021258fc0,ffffff9c,7f7ffffed690,8) at dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848
syscall(ffff800029206400) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff800029206400) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffed680, count: 8
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff82a09df8, 0xffff80001a64f004, 0, 1) -> d
ddb{0}> trace
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8063731a58,ffff800029206258,ffff800029206288) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85
vfs_lookup(ffff800029206228) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560
namei(ffff800029206228) at namei+0x36a sys/kern/vfs_lookup.c:244
dounlinkat(ffff800021258fc0,ffffff9c,7f7ffffed690,8) at dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848
syscall(ffff800029206400) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff800029206400) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffed680, count: -7
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800029206060
rbx 0
rdx 0
rcx 0xffffffff
rax 0xfffffd8068797ea8
r8 0xffffffffffffffff
r9 0xfffffd807f7d72d8
r10 0xaf8393080f4d3502
r11 0xcb326f83cbaab1af
r12 0
r13 0
r14 0
r15 0xffff80001a64f000
rip 0xffffffff81acaa7e ufs_lookup+0x4ce
cs 0x8
rflags 0x10202 __ALIGN_SIZE+0xf202
rsp 0xffff800029205f60
ss 0x10
ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx
ddb{0}> show proc
PROC (syz-executor.2) pid=345371 stat=onproc
flags process=2<EXEC> proc=0
pri=17, usrpri=82, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffe9a50,0xffff8000ffff7520
process=0xffff80002129adc8 user=0xffff800029201000, vmspace=0xfffffd807effd2e0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
88828 72301 66581 0 2 0x81000 syz-executor.7
88828 448508 66581 0 2 0x4081000 syz-executor.7
88828 183048 66581 0 3 0x4003000 suspend syz-executor.7
88828 432727 66581 0 2 0x4081000 syz-executor.7
88828 501680 66581 0 2 0x4081000 syz-executor.7
16003 480407 99595 0 3 0x3000 suspend syz-executor.6
16003 522191 99595 0 2 0x4081080 syz-executor.6
16003 438050 99595 0 2 0x4081080 syz-executor.6
44701 276091 37053 0 2 0 syz-executor.3
44701 26625 37053 0 3 0x4000080 ttyout syz-executor.3
44701 263011 37053 0 3 0x4000080 ttyout syz-executor.3
44701 53305 37053 0 3 0x4000080 ttyout syz-executor.3
56200 418917 88521 0 3 0x82 piperd syz-executor.0
99595 477474 88521 0 2 0x482 syz-executor.6
29772 506558 88521 0 2 0x482 syz-executor.5
24777 20395 88521 0 3 0x82 piperd syz-executor.4
*15897 345371 88521 0 7 0x2 syz-executor.2
37053 523974 88521 0 2 0x482 syz-executor.3
80121 421855 0 0 3 0x14200 acct acct
11883 176287 1 0 3 0x100083 ttyin getty
37251 256653 88521 0 2 0x482 syz-executor.1
66581 341625 88521 0 2 0x482 syz-executor.7
56585 273009 0 0 3 0x14280 nfsidl nfsio
88604 143435 0 0 3 0x14280 nfsidl nfsio
14226 490526 0 0 3 0x14280 nfsidl nfsio
20090 402513 0 0 3 0x14280 nfsidl nfsio
57821 249138 0 0 3 0x14280 nfsidl nfsio
87261 230644 0 0 3 0x14280 nfsidl nfsio
33388 350871 0 0 3 0x14280 nfsidl nfsio
33259 289332 0 0 3 0x14280 nfsidl nfsio
42182 438048 0 0 3 0x14280 nfsidl nfsio
54478 498247 0 0 3 0x14280 nfsidl nfsio
47181 54948 0 0 3 0x14280 nfsidl nfsio
30586 147617 0 0 3 0x14280 nfsidl nfsio
74851 319099 0 0 3 0x14280 nfsidl nfsio
63335 302345 0 0 3 0x14280 nfsidl nfsio
53344 227684 0 0 3 0x14280 nfsidl nfsio
65694 335735 0 0 3 0x14280 nfsidl nfsio
17935 354696 0 0 3 0x14280 nfsidl nfsio
93121 254310 0 0 3 0x14280 nfsidl nfsio
62443 153186 0 0 3 0x14280 nfsidl nfsio
31985 287263 0 0 3 0x14280 nfsidl nfsio
86878 210796 0 0 3 0x14200 bored sosplice
88521 452012 19939 0 3 0x82 wait syz-fuzzer
88521 313225 19939 0 3 0x4000082 nanoslp syz-fuzzer
88521 213372 19939 0 3 0x4000082 thrsleep syz-fuzzer
88521 417960 19939 0 3 0x4000082 wait syz-fuzzer
88521 337050 19939 0 3 0x4000082 wait syz-fuzzer
88521 47815 19939 0 3 0x4000082 wait syz-fuzzer
88521 196926 19939 0 3 0x4000082 wait syz-fuzzer
88521 491748 19939 0 3 0x4000082 thrsleep syz-fuzzer
88521 496188 19939 0 3 0x4000082 thrsleep syz-fuzzer
88521 61722 19939 0 3 0x4000082 wait syz-fuzzer
88521 357668 19939 0 3 0x4000082 kqread syz-fuzzer
88521 16746 19939 0 3 0x4000082 wait syz-fuzzer
88521 414795 19939 0 3 0x4000082 thrsleep syz-fuzzer
88521 246265 19939 0 3 0x4000082 wait syz-fuzzer
88521 65039 19939 0 3 0x4000082 thrsleep syz-fuzzer
88521 259186 19939 0 3 0x4000082 thrsleep syz-fuzzer
19939 225826 81940 0 3 0x10008a sigsusp ksh
81940 495327 57079 0 3 0x9a kqread sshd
57079 221777 1 0 3 0x88 kqread sshd
67154 13018 80678 74 3 0x1100092 bpf pflogd
80678 172960 1 0 3 0x80 netio pflogd
17130 81067 86174 73 3 0x1100090 kqread syslogd
86174 518897 1 0 3 0x100082 netio syslogd
15074 427797 1 0 3 0x100080 kqread resolvd
29712 434839 0 0 3 0x14200 bored smr
68975 115101 0 0 2 0x14200 zerothread
71078 299839 0 0 3 0x14200 aiodoned aiodoned
27343 469843 0 0 3 0x14200 syncer update
48001 196493 0 0 3 0x14200 cleaner cleaner
86091 160170 0 0 7 0x14200 reaper
20628 418158 0 0 3 0x14200 pgdaemon pagedaemon
56746 501202 0 0 3 0x14200 bored viomb
10053 450369 0 0 3 0x40014200 acpi0 acpi0
72911 480503 0 0 3 0x40014200 idle1
13386 117248 0 0 3 0x14200 bored softnet
57005 514749 0 0 3 0x14200 bored softnet
58780 30449 0 0 3 0x14200 bored softnet
58559 161685 0 0 3 0x14200 bored softnet
45120 505208 0 0 3 0x14200 bored systqmp
83242 243944 0 0 3 0x14200 bored systq
18809 25292 0 0 2 0x40014200 softclock
13163 83040 0 0 3 0x40014200 idle0
1 388616 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 15897 (syz-executor.2) thread 0xffff800021258fc0 (345371)
exclusive rrwlock inode r = 0 (0xfffffd807ea68d68)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:412
#6 namei+0x36a sys/kern/vfs_lookup.c:244
#7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848
#8 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline]
#8 syscall+0x438 sys/arch/amd64/amd64/trap.c:599
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82a147a8)
#0 witness_lock+0x44d
#1 syscall+0x424 mi_syscall sys/sys/syscall_mi.h:101 [inline]
#1 syscall+0x424 sys/arch/amd64/amd64/trap.c:599
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10210 6493K 6943K 78643K 18174 0
pcb 15 18K 22K 78643K 10169 0
rtable 234 10K 10K 78643K 1977 0
ifaddr 134 29K 30K 78643K 921 0
sysctl 2 0K 1K 78643K 11 0
counters 60 35K 36K 78643K 440 0
ioctlops 0 0K 4K 78643K 2310 0
iov 0 0K 24K 78643K 1153 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1474 92K 93K 78643K 5583 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 120 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 1587 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 13 45K 89K 78643K 9068 0
sigio 0 0K 0K 78643K 354 0
proc 64 67K 115K 78643K 1530 0
subproc 104 6K 6K 78643K 364 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 585 0
in_multi 92 6K 6K 78643K 706 0
ether_multi 1 0K 0K 78643K 41 0
mrt 1 0K 0K 78643K 25 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 127 572K 572K 78643K 127 0
exec 0 0K 1K 78643K 1735 0
pfkey data 0 0K 0K 78643K 38 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 441 713K 713K 78643K 65802 0
UVM aobj 131 4K 4K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 298 0
NDP 14 0K 1K 78643K 261 0
temp 145 4698K 5722K 78643K 82247 0
kqueue 6 10K 24K 78643K 490 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 751 0 750 10 9 1 3 0 8 0
rtentry 112 601 0 498 5 1 4 4 0 8 0
unpcb 144 6319 0 6311 75 70 5 6 0 8 4
syncache 296 38 0 38 15 14 1 1 0 8 1
tcpqe 32 261 106 261 4 4 0 2 0 8 0
tcpcb 776 2436 0 2424 91 83 8 11 0 8 6
arp 120 69 0 49 1 0 1 1 0 8 0
inpcb 368 15922 0 15906 166 155 11 17 0 8 8
nd6 48 133 0 108 1 0 1 1 0 8 0
pkpcb 40 16 0 16 5 5 0 1 0 8 0
kcovpl 48 28 0 20 1 0 1 1 0 8 0
mppekey 1024 4 0 4 2 2 0 1 0 8 0
ppxss 1256 102 0 102 17 17 0 1 0 8 0
pppxif 1704 32 0 32 9 9 0 1 0 8 0
pfstscr 40 7 0 7 2 2 0 1 0 8 0
pffrag 232 60 0 55 5 4 1 1 0 482 0
pffrnode 88 60 0 55 5 4 1 1 0 8 0
pffrent 40 127 0 122 6 5 1 1 0 8 0
pfosfp 40 1464 0 1040 5 0 5 5 0 8 0
pfosfpen 112 1464 0 749 21 0 21 21 0 8 0
pfanchor 1280 910 2 398 48 5 43 43 0 8 0
pfqueue 264 2 0 2 1 1 0 1 0 8 0
pfstitem 24 2 0 2 1 1 0 1 0 8 0
pfstkey 120 14 0 14 2 2 0 1 0 8 0
pfstate 384 7 0 7 2 2 0 1 0 8 0
rttmr 136 5 0 5 2 2 0 1 0 8 0
art_heap8 4096 11 0 10 9 8 1 3 0 8 0
art_heap4 256 2937 0 2501 51 22 29 30 0 8 0
art_table 32 2948 0 2511 5 1 4 4 0 8 0
art_node 16 595 0 505 1 0 1 1 0 8 0
sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 1585 0 1575 1 0 1 1 0 8 0
shmpl 112 136 0 8 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 15113 0 13629 93 0 93 93 0 8 0
ffsino 272 15113 0 13629 99 0 99 99 0 8 0
nchpl 144 29107 0 27462 63 0 63 63 0 8 0
rtmask 32 2 0 2 1 1 0 1 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 100967 0 100966 10 9 1 2 0 8 0
percpumem 16 232 0 190 1 0 1 1 0 8 0
vcpupl 2048 110 0 0 14 0 14 14 0 8 0
vmpool 568 133 0 23 8 0 8 8 0 8 0
kstatmem 264 328 0 300 3 0 3 3 0 8 0
scsiplug 72 9 0 9 3 3 0 1 0 8 0
scxspl 216 91862 0 91862 22 21 1 8 0 8 1
plimitpl 152 996 0 980 1 0 1 1 0 8 0
sigapl 424 9366 0 9302 10 2 8 8 0 8 0
futexpl 64 89997 0 89995 6 5 1 1 0 8 0
knotepl 120 750 0 0 12 0 12 12 0 8 0
kqueuepl 216 1791 0 1786 31 30 1 6 0 8 0
pipepl 320 1718 0 1690 41 36 5 8 0 8 2
fdescpl 496 9327 0 9304 5 1 4 5 0 8 0
filepl 152 73699 0 73470 121 104 17 19 0 8 4
lockfpl 104 11625 0 11623 21 20 1 3 0 8 0
lockfspl 48 2603 0 2601 1 0 1 1 0 8 0
sessionpl 144 45 0 29 1 0 1 1 0 8 0
pgrppl 48 254 0 238 1 0 1 1 0 8 0
ucredpl 104 6698 0 6688 1 0 1 1 0 8 0
zombiepl 144 9305 0 9302 4 3 1 1 0 8 0
processpl 1064 9366 0 9302 5 0 5 5 0 8 0
procpl 672 27828 0 27735 26 17 9 10 0 8 0
srpgc 96 28 0 28 11 11 0 1 0 8 0
sosppl 168 77 0 75 8 7 1 1 0 8 0
sockpl 488 23033 0 23010 370 356 14 28 0 8 8
mcl64k 65536 33 0 0 3 0 3 3 0 8 0
mcl16k 16384 17 0 0 3 0 3 3 0 8 0
mcl12k 12288 30 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 32 0 0 3 0 3 3 0 8 0
mcl4k 4096 33 0 0 3 0 3 3 0 8 0
mcl2k2 2112 5 0 0 1 0 1 1 0 8 0
mcl2k 2048 340 0 0 37 15 22 37 0 8 0
mtagpl 96 54 0 0 2 0 2 2 0 8 0
mbufpl 256 1270 0 0 60 0 60 60 0 8 0
bufpl 288 20523 0 14189 453 0 453 453 0 8 0
anonpl 24 1912658 0 1896213 252 131 121 176 0 186 0
amapchunkpl 152 184959 0 184181 92 53 39 62 0 158 0
amappl16 200 16177 0 15679 85 48 37 40 0 8 7
amappl15 192 18 0 17 1 0 1 1 0 8 0
amappl14 184 209 0 197 2 1 1 2 0 8 0
amappl13 176 12 0 12 4 4 0 1 0 8 0
amappl12 168 707 0 694 1 0 1 1 0 8 0
amappl11 160 49 0 41 1 0 1 1 0 8 0
amappl10 152 53 0 41 1 0 1 1 0 8 0
amappl9 144 1041 0 1040 1 0 1 1 0 8 0
amappl8 136 458 0 356 5 1 4 4 0 8 0
amappl7 128 94 0 76 1 0 1 1 0 8 0
amappl6 120 557 0 539 2 1 1 2 0 8 0
amappl5 112 247 0 237 1 0 1 1 0 8 0
amappl4 104 1048 0 1012 4 2 2 2 0 8 1
amappl3 96 28510 0 28467 2 0 2 2 0 8 0
amappl2 88 10812 0 10754 3 1 2 3 0 8 0
amappl1 80 214885 0 214274 23 7 16 22 0 8 0
amappl 88 64981 0 64731 9 2 7 7 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 9461 0 9328 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 9461 0 9328 1 0 1 1 0 8 0
vmmpekpl 168 75956 0 75860 5 0 5 5 0 8 0
vmmpepl 168 866682 0 864066 254 115 139 152 0 357 2
vmsppl 368 9460 0 9327 15 2 13 13 0 8 0
rwobjpl 56 234169 0 226487 124 12 112 114 0 8 1
pdppl 4096 18929 0 18764 625 452 173 173 0 8 8
pvpl 32 3828460 0 3807275 509 305 204 314 0 265 3
pmappl 248 9460 0 9327 12 3 9 9 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1669 0 684 29 0 29 29 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8063731a58,ffff800029206258,ffff800029206288) at VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85
vfs_lookup(ffff800029206228) at vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:560
namei(ffff800029206228) at namei+0x36a sys/kern/vfs_lookup.c:244
dounlinkat(ffff800021258fc0,ffffff9c,7f7ffffed690,8) at dounlinkat+0x99 sys/kern/vfs_syscalls.c:1848
syscall(ffff800029206400) at syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff800029206400) at syscall+0x438 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffed680, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82a145a0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a145a0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
uvm_unmap_detach(ffff8000212390e0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382
uvm_map_teardown(fffffd80719bb5f0) at uvm_map_teardown+0x2aa sys/uvm/uvm_map.c:2598
uvmspace_free(fffffd80719bb5f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3504
reaper(ffff8000212337a8) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: 7
ddb{1}> trace
x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82a145a0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a145a0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
uvm_unmap_detach(ffff8000212390e0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382
uvm_map_teardown(fffffd80719bb5f0) at uvm_map_teardown+0x2aa sys/uvm/uvm_map.c:2598
uvmspace_free(fffffd80719bb5f0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3504
reaper(ffff8000212337a8) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8