uvm_fault(0xffffffff82d8afc8, 0xffff8000124ef004, 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
439309 81776 0 0 0 0 syz-executor714944071
*367405 64437 0 0 0 1K syz-executor714944071
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250
dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xffffffff82d8afc8, 0xffff8000124ef004, 0, 1) -> d
ddb{1}> trace
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250
dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, count: -7
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff800021262fb0
rbx 0
rdx 0xfffffd806ca52040
rcx 0xffffffff
rax 0xfffffd806ce56a50
r8 0xffffffffffffffff
r9 0xfffffd807f7d7888
r10 0xf4a9a6f4f29946d1
r11 0xc64e7f0bbc658523
r12 0
r13 0
r14 0
r15 0xffff8000124ef000
rip 0xffffffff8270491e ufs_lookup+0x4ce
cs 0x8
rflags 0x10202 __ALIGN_SIZE+0xf202
rsp 0xffff800021262eb0
ss 0x10
ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx
ddb{1}> show proc
PROC (syz-executor714944071) tid=367405 pid=64437 tcnt=1 stat=onproc
flags process=0 proc=0
runpri=76, usrpri=76, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff8000211eb550,0xffff8000211dad78
process=0xffff800021222190 user=0xffff80002125e000, vmspace=0xfffffd807eff81d0
estcpu=36, cpticks=3, pctcpu=1.6, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
60322 172325 23132 0 2 0 syz-executor714944071
79757 455089 93338 0 2 0 syz-executor714944071
28323 89367 12357 0 2 0 syz-executor714944071
12357 177072 1901 0 3 0x80 nanoslp syz-executor714944071
93338 322735 1901 0 2 0 syz-executor714944071
36232 142274 1901 0 2 0 syz-executor714944071
81776 439309 1901 0 7 0 syz-executor714944071
*64437 367405 1901 0 7 0 syz-executor714944071
18396 180090 1901 0 2 0 syz-executor714944071
23132 64642 1901 0 2 0 syz-executor714944071
76499 149857 1901 0 3 0x80 nanoslp syz-executor714944071
1901 371025 9335 0 3 0x82 nanoslp syz-executor714944071
9335 167302 80506 0 3 0x10008a sigsusp ksh
80506 477544 2579 0 3 0x9a kqread sshd
27296 185970 1 0 3 0x100083 ttyin getty
2579 228357 1 0 3 0x88 kqread sshd
98995 64434 204 74 3 0x1100092 bpf pflogd
204 228554 1 0 3 0x80 netio pflogd
39139 39713 47215 73 3 0x1100090 kqread syslogd
47215 441410 1 0 3 0x100082 netio syslogd
93419 380938 1 0 3 0x100080 kqread resolvd
12250 63890 40780 77 3 0x100092 kqread dhcpleased
44426 496968 40780 77 3 0x100092 kqread dhcpleased
40780 513708 1 0 3 0x80 kqread dhcpleased
55409 292663 0 0 3 0x14200 bored smr
34022 25268 0 0 2 0x14200 zerothread
91351 63771 0 0 3 0x14200 aiodoned aiodoned
370 227839 0 0 3 0x14200 syncer update
37470 155649 0 0 3 0x14200 cleaner cleaner
90686 233182 0 0 3 0x14200 reaper reaper
27778 156143 0 0 3 0x14200 pgdaemon pagedaemon
93832 303299 0 0 3 0x14200 bored viomb
92366 322842 0 0 3 0x40014200 acpi0 acpi0
33761 448401 0 0 3 0x40014200 idle1
72074 78315 0 0 3 0x14200 bored softnet3
98142 518561 0 0 3 0x14200 bored softnet2
943 126037 0 0 3 0x14200 bored softnet1
19461 23463 0 0 3 0x14200 bored softnet0
24047 257041 0 0 3 0x14200 bored systqmp
69877 429324 0 0 3 0x14200 bored systq
79719 300144 0 0 3 0x14200 tmoslp softclockmp
84937 275865 0 0 3 0x40014200 tmoslp softclock
52547 141682 0 0 3 0x40014200 idle0
1 481727 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 36232 (syz-executor714944071) thread 0xffff8000211daac0 (142274)
exclusive rrwlock inode r = 0 (0xfffffd8068cfae70)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1314
#8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#11 namei+0x55a sys/kern/vfs_lookup.c:250
#12 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#13 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#13 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8068ce9c50)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162
#8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#10 namei+0x55a sys/kern/vfs_lookup.c:250
#11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#13 Xsyscall+0x128
Process 64437 (syz-executor714944071) thread 0xffff8000211db808 (367405)
exclusive rrwlock inode r = 0 (0xfffffd8068d115f8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vget+0x200 sys/kern/vfs_subr.c:676
#6 cache_lookup+0x2b4 sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x1ac sys/ufs/ufs/ufs_lookup.c:162
#8 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#10 namei+0x55a sys/kern/vfs_lookup.c:250
#11 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#13 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d15a68)
#0 witness_lock+0x447
#1 syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline]
#1 syscall+0x5cd sys/arch/amd64/amd64/trap.c:623
#2 Xsyscall+0x128
Process 18396 (syz-executor714944071) thread 0xffff8000211eb550 (180090)
exclusive rrwlock inode r = 0 (0xfffffd8068d20708)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343
#6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149
#8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
#9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806d5885e8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10163 6456K 6457K 78643K 11241 0
pcb 13 8K 8K 78643K 13 0
rtable 58 1K 2K 78643K 108 0
pf 15 6K 10K 78643K 26 0
ifaddr 13 9K 9K 78643K 13 0
ifgroup 22 1K 1K 78643K 22 0
counters 44 33K 33K 78643K 44 0
ioctlops 0 0K 4K 78643K 1475 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1176 74K 74K 78643K 1193 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 1 0K 0K 78643K 1 0
proc 67 91K 91K 78643K 302 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 0K 78643K 11 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 25 122K 122K 78643K 25 0
exec 0 0K 1K 78643K 260 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 125 6K 7K 78643K 12558 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 4 0K 0K 78643K 4 0
temp 1 5904K 5968K 78643K 66430 0
kqueue 11 16K 18K 78643K 24 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> 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 17 0 14 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 144 35 0 20 1 0 1 1 0 8 0
syncache 304 5 0 5 2 2 0 1 0 8 0
tcpqe 32 118 0 118 1 1 0 1 0 8 0
tcpcb 808 8 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 368 33 0 27 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 9 0 7 2 1 1 1 0 8 0
pfstkey 128 9 0 7 2 1 1 1 0 8 0
pfstate 376 9 0 7 2 1 1 1 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 97 0 0 7 0 7 7 0 8 0
art_table 32 98 0 0 1 0 1 1 0 8 0
art_node 16 22 0 2 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 21253 0 16174 318 0 318 318 0 8 0
ffsino 272 21253 0 16174 339 0 339 339 0 8 0
nchpl 144 41249 0 39660 60 0 60 60 0 8 0
uvmvnodes 80 6153 0 0 126 0 126 126 0 8 0
vnodes 216 6153 0 0 342 0 342 342 0 8 0
namei 1024 93684 0 93682 3 1 2 2 0 8 1
percpumem 16 35 0 0 1 0 1 1 0 8 0
kstatmem 264 8 0 0 1 0 1 1 0 8 0
scxspl 216 102371 0 102371 16 10 6 8 1 8 6
plimitpl 152 17 0 10 1 0 1 1 0 8 0
sigapl 424 10244 0 10199 7 1 6 6 0 8 0
knotepl 120 47 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 320 91 0 88 2 1 1 1 0 8 0
fdescpl 496 10226 0 10199 4 0 4 4 0 8 0
filepl 152 30970 0 30905 3 0 3 3 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 104 81 0 68 1 0 1 1 0 8 0
zombiepl 144 10200 0 10199 2 1 1 1 0 8 0
processpl 1072 10244 0 10199 4 0 4 4 0 8 0
procpl 680 10244 0 10199 6 1 5 5 0 8 1
sockpl 488 85 0 61 5 1 4 4 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 4 0 0 1 0 1 1 0 8 0
mcl2k 2048 295 0 0 34 5 29 34 0 8 0
mtagpl 96 2 0 0 1 0 1 1 0 8 0
mbufpl 256 331 0 0 18 1 17 18 0 8 0
bufpl 288 22411 0 16219 443 0 443 443 0 8 0
anonpl 24 268264 0 265991 27 13 14 25 0 186 0
amapchunkpl 152 18736 0 18514 10 1 9 9 0 158 0
amappl16 200 15471 0 15461 6 5 1 5 0 8 0
amappl15 192 8 0 8 1 1 0 1 0 8 0
amappl14 184 111 0 99 1 0 1 1 0 8 0
amappl13 176 18 0 18 1 1 0 1 0 8 0
amappl12 168 863 0 841 2 1 1 2 0 8 0
amappl11 160 63 0 49 1 0 1 1 0 8 0
amappl10 152 18 0 17 1 0 1 1 0 8 0
amappl9 144 212 0 212 1 1 0 1 0 8 0
amappl8 136 36 0 34 1 0 1 1 0 8 0
amappl7 128 22 0 21 1 0 1 1 0 8 0
amappl6 120 148 0 133 1 0 1 1 0 8 0
amappl5 112 118 0 107 1 0 1 1 0 8 0
amappl4 104 10373 0 10329 2 0 2 2 0 8 0
amappl3 96 2173 0 2126 3 1 2 2 0 8 0
amappl2 88 10396 0 10345 2 0 2 2 0 8 0
amappl1 80 39142 0 38641 16 4 12 12 0 8 0
amappl 88 12266 0 12187 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 10226 0 10199 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 10226 0 10199 1 0 1 1 0 8 0
vmmpekpl 168 29050 0 29027 2 0 2 2 0 8 0
vmmpepl 168 283284 0 281953 70 9 61 63 0 357 3
vmsppl 464 10225 0 10199 4 0 4 4 0 8 0
rwobjpl 56 34122 0 27212 100 2 98 98 0 8 0
pdppl 4096 20460 0 20398 138 72 66 70 0 8 4
pvpl 32 808980 0 803624 65 20 45 57 0 265 0
pmappl 248 10225 0 10199 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1317 0 82 36 0 36 36 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82c0cff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82d15860) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d15860) at __mp_lock+0x129 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82d15860) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d15860) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff800021269160) at syscall+0x52b mi_syscall_return sys/sys/syscall_mi.h:138 [inline]
syscall(ffff800021269160) at syscall+0x52b sys/arch/amd64/amd64/trap.c:644
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, count: 6
ddb{0}> trace
x86_ipi_db(ffffffff82c0cff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82d15860) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d15860) at __mp_lock+0x129 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82d15860) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d15860) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff800021269160) at syscall+0x52b mi_syscall_return sys/sys/syscall_mi.h:138 [inline]
syscall(ffff800021269160) at syscall+0x52b sys/arch/amd64/amd64/trap.c:644
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, count: -9
ddb{0}> machine ddbcpu 1
Stopped at ufs_lookup+0x4ce: movzwl 0x4(%r15,%r13,1),%ebx
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250
dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, count: 8
ddb{1}> trace
ufs_lookup() at ufs_lookup+0x4ce sys/ufs/ufs/ufs_lookup.c:281
VOP_LOOKUP(fffffd8068cef600,ffff8000212631a8,ffff8000212631d8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
vfs_lookup(ffff800021263178) at vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
namei(ffff800021263178) at namei+0x55a sys/kern/vfs_lookup.c:250
dounlinkat(ffff8000211db808,ffffff9c,77499618a190,0) at dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
syscall(ffff800021263350) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800021263350) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77499618a640, count: -7