a5O)KL)'W7@|S 'ZCkFF=as?2 C&-d; panic: missing alias
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
116002 71162 0 0 0 0 syz-executor
*113274 34843 0 0x2 0 1K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83346002) at panic+0x1e5 sys/kern/subr_prf.c:198
vgonel(fffffd805e81a0e0,ffff8000ffffdc90) at vgonel+0x663
vrecycle(fffffd805e81a0e0,ffff8000ffffdc90) at vrecycle+0x7c sys/kern/vfs_subr.c:1136
ufs_inactive(ffff80002a31a9a0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffffd805e81a0e0,ffff8000ffffdc90) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498
vput(fffffd805e81a0e0) at vput+0xe5 sys/kern/vfs_subr.c:789
VOP_REMOVE(fffffd805e81acb0,fffffd805e81a0e0,ffff80002a31ab08) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff8000ffffdc90,ffffff9c,7d444fa6f780,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1904
syscall(ffff80002a31ac80) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a31ac80) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d444fa6fc30, count: 4
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: missing alias
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83346002) at panic+0x1e5 sys/kern/subr_prf.c:198
vgonel(fffffd805e81a0e0,ffff8000ffffdc90) at vgonel+0x663
vrecycle(fffffd805e81a0e0,ffff8000ffffdc90) at vrecycle+0x7c sys/kern/vfs_subr.c:1136
ufs_inactive(ffff80002a31a9a0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffffd805e81a0e0,ffff8000ffffdc90) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498
vput(fffffd805e81a0e0) at vput+0xe5 sys/kern/vfs_subr.c:789
VOP_REMOVE(fffffd805e81acb0,fffffd805e81a0e0,ffff80002a31ab08) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff8000ffffdc90,ffffff9c,7d444fa6f780,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1904
syscall(ffff80002a31ac80) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a31ac80) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d444fa6fc30, count: -11
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a31a7d0
rbx 0xffff8000299eee07
rdx 0
rcx 0xffff8000ffffdc90
rax 0xffff8000299edff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x62079d06c520f09f
r11 0xd51b3281d332c1d4
r12 0xffff8000299eec08
r13 0
r14 0
r15 0x1
rip 0xffffffff810075e5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a31a7c0
ss 0
db_enter+0x25: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor) tid=113274 pid=34843 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffd4c8,0xffff8000ffffcd10
process=0xffff8000ffff3030 user=0xffff80002a315000, vmspace=0xfffffd806f7b17a8
estcpu=36, cpticks=16, pctcpu=0.4, user=0, sys=13, intr=2
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
71162 116002 41417 0 7 0 syz-executor
71162 245878 41417 0 3 0x4000080 kqread syz-executor
40394 173258 35113 0 2 0 syz-executor
40394 368421 35113 0 3 0x4000080 bell syz-executor
59380 54091 21730 0 3 0x80 nanoslp syz-executor
59380 183416 21730 0 3 0x4000080 fsleep syz-executor
59380 198203 21730 0 3 0x4000080 fsleep syz-executor
21178 203851 2615 0 2 0 syz-executor
21178 333605 2615 0 3 0x4000080 ttyopn syz-executor
21178 108041 2615 0 3 0x4000080 piperd syz-executor
72013 280448 85024 0 3 0x80 nanoslp syz-executor
72013 454533 85024 0 2 0x4000000 syz-executor
72013 118913 85024 0 3 0x4000080 fsleep syz-executor
21730 166835 98757 0 3 0x82 nanoslp syz-executor
2615 169318 98757 0 3 0x82 nanoslp syz-executor
10867 285734 98757 0 3 0x82 nanoslp syz-executor
85024 422534 98757 0 3 0x82 nanoslp syz-executor
41417 472836 98757 0 3 0x82 nanoslp syz-executor
82068 11074 98757 0 3 0x82 wait syz-executor
*34843 113274 98757 0 7 0x2 syz-executor
35113 213113 98757 0 3 0x82 nanoslp syz-executor
98757 228987 99271 0 2 0x3 syz-executor
99271 458876 28392 0 3 0x10008a sigsusp ksh
28392 435731 2835 0 3 0x98 kqread sshd-session
2835 225096 57666 0 3 0x92 kqread sshd-session
25466 410431 1 0 3 0x100083 ttyopn getty
57666 163771 1 0 3 0x88 kqread sshd
35050 111167 29699 74 3 0x1100092 bpf pflogd
29699 515434 1 0 3 0x80 sbwait pflogd
65478 65878 16734 73 3 0x1100090 kqread syslogd
16734 386531 1 0 3 0x100082 sbwait syslogd
11737 229258 1 0 3 0x100080 kqread resolvd
85882 324126 23911 77 3 0x100092 kqread dhcpleased
31168 309155 23911 77 3 0x100092 kqread dhcpleased
23911 172662 1 0 3 0x80 kqread dhcpleased
91240 296116 0 0 3 0x14200 bored smr
76999 395929 0 0 2 0x14200 zerothread
12870 168581 0 0 3 0x14200 aiodoned aiodoned
69139 309336 0 0 3 0x14200 syncer update
80842 414362 0 0 3 0x14200 cleaner cleaner
2427 172447 0 0 3 0x14200 reaper reaper
88008 4336 0 0 3 0x14200 pgdaemon pagedaemon
38561 278056 0 0 3 0x14200 bored viomb
64401 130890 0 0 3 0x40014200 acpi0 acpi0
65401 189586 0 0 3 0x40014200 idle1
23433 473910 0 0 3 0x14200 bored softnet1
61211 296510 0 0 3 0x14200 bored softnet0
79081 191071 0 0 3 0x14200 smrbar systqmp
82358 429818 0 0 3 0x14200 bored systq
39917 473748 0 0 3 0x14200 tmoslp softclockmp
97072 273139 0 0 3 0x40014200 tmoslp softclock
82425 55245 0 0 3 0x40014200 idle0
1 73496 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 72013 (syz-executor) thread 0xffff8000fffe7a18 (454533)
exclusive rrwlock inode r = 0 (0xfffffd806c89e330)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vn_write+0x18f sys/kern/vfs_vnops.c:405
#6 dofilewritev+0x242 sys/kern/sys_generic.c:380
#7 sys_write+0xa2 sys/kern/sys_generic.c:300
#8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#9 Xsyscall+0x128
Process 34843 (syz-executor) thread 0xffff8000ffffdc90 (113274)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839ed090)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369
#3 biowait+0xc6 sys/kern/vfs_bio.c:1242
#4 bwrite+0x2e7 sys/kern/vfs_bio.c:754
#5 ufs_dirremove+0x290 sys/ufs/ufs/ufs_lookup.c:919
#6 ufs_remove+0x1a7 sys/ufs/ufs/ufs_vnops.c:594
#7 VOP_REMOVE+0x172 sys/kern/vfs_vops.c:331
#8 dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1904
#9 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806e94aa60)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vget+0x2a2 sys/kern/vfs_subr.c:686
#6 cache_lookup+0x351 sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566
#10 namei+0x7ca sys/kern/vfs_lookup.c:250
#11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868
#12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
#13 Xsyscall+0x128
Process 79081 (systqmp) thread 0xffff8000ffffe530 (191071)
shared rwlock systqmp r = 0 (0xffffffff838a65e8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10210 11281K 11412K 166960K 11713 0
pcb 19 17K 19K 166960K 180 0
rtable 226 7K 7K 166960K 381 0
pf 32 17K 18K 166960K 60 0
ifaddr 39 6K 7K 166960K 52 0
ifgroup 51 2K 2K 166960K 76 0
sysctl 1 1K 9K 166960K 5 0
counters 68 36K 37K 166960K 80 0
ioctlops 0 0K 4K 166960K 1504 0
iov 0 0K 16K 166960K 15 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1370 86K 86K 166960K 1546 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 9 0K 0K 166960K 9 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 236K 166960K 366 0
sigio 0 0K 0K 166960K 5 0
proc 72 115K 164K 166960K 548 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 229 0
in_multi 88 6K 7K 166960K 110 0
ether_multi 1 0K 0K 166960K 7 0
mrt 0 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 67 307K 307K 166960K 67 0
exec 0 0K 1K 166960K 399 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 255 167K 181K 166960K 5268 0
UVM aobj 6 2K 2K 166960K 6 0
pinsyscall 42 84K 107K 166960K 1480 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 20 0
NDP 11 0K 2K 166960K 33 0
temp 43 8668K 8735K 166960K 10806 0
kqueue 14 22K 29K 166960K 60 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 117 0 114 3 0 3 3 0 8 2
rtentry 176 113 0 12 6 0 6 6 0 8 0
unpcb 144 236 0 216 4 0 4 4 0 8 3
syncache 336 3 0 3 1 1 0 1 0 8 0
tcpcb 736 62 0 57 1 0 1 1 0 8 0
arp 136 18 0 2 1 0 1 1 0 8 0
inpcb 328 642 0 630 17 10 7 13 0 8 5
nd6 152 25 0 3 1 0 1 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 2 0 2 1 0 1 1 0 8 1
pffrag 232 3 0 0 1 0 1 1 0 482 0
pffrnode 88 3 0 0 1 0 1 1 0 8 0
pffrent 40 5 0 2 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 24 0 1 1 0 1 1 0 8 0
pfstkey 128 24 0 1 1 0 1 1 0 8 0
pfstate 448 24 0 1 3 0 3 3 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 455 0 0 29 0 29 29 0 8 0
art_table 40 457 0 0 5 0 5 5 0 8 0
art_node 32 113 0 11 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 7 0 0 1 0 1 1 0 8 0
shmpl 112 3 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1953 0 444 95 0 95 95 0 8 0
ffsino 296 1953 0 444 117 0 117 117 0 8 0
nchpl 144 2448 0 745 64 0 64 64 0 8 0
vnodes 216 2159 0 0 120 0 120 120 0 8 0
namei 1024 8074 0 8074 2 1 1 2 0 8 1
percpumem 16 55 0 6 1 0 1 1 0 8 0
kstatmem 264 36 0 12 2 0 2 2 0 8 0
scsiplug 72 1 0 1 1 0 1 1 0 8 1
scxspl 216 10622 0 10622 3 2 1 2 1 8 1
plimitpl 152 135 0 117 1 0 1 1 0 8 0
sigapl 424 662 0 615 7 1 6 7 0 8 0
knotepl 120 540 0 0 17 0 17 17 0 8 0
kqueuepl 224 91 0 79 1 0 1 1 0 8 0
pipepl 344 132 0 104 3 0 3 3 0 8 0
fdescpl 528 646 0 615 3 0 3 3 0 8 0
filepl 160 3445 0 3215 22 7 15 17 0 8 3
lockfpl 104 72 0 70 1 0 1 1 0 8 0
lockfspl 48 33 0 31 1 0 1 1 0 8 0
sessionpl 144 22 0 13 1 0 1 1 0 8 0
pgrppl 48 34 0 17 1 0 1 1 0 8 0
ucredpl 104 316 0 303 1 0 1 1 0 8 0
zombiepl 144 777 0 775 2 1 1 1 0 8 0
processpl 1232 662 0 615 5 1 4 5 0 8 0
procpl 664 1088 0 1033 6 0 6 6 0 8 0
sosppl 176 2 0 2 1 0 1 1 0 8 1
sockpl 752 998 0 963 22 11 11 17 0 8 7
mcl64k 65536 18 0 0 3 0 3 3 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 137 0 0 18 0 18 18 0 8 0
mcl2k 2048 30 0 0 4 0 4 4 0 8 0
mtagpl 96 13 0 0 1 0 1 1 0 8 0
mbufpl 256 211 0 0 14 0 14 14 0 8 0
bufpl 280 4277 0 132 297 0 297 297 0 8 0
anonpl 32 7985 0 0 66 0 66 66 0 246 1
amapchunkpl 152 15860 0 15297 36 1 35 35 0 158 10
amappl16 200 1524 0 1498 14 3 11 11 0 8 6
amappl15 192 4 0 3 1 0 1 1 0 8 0
amappl14 184 14 0 14 1 1 0 1 0 8 0
amappl13 176 437 0 436 1 0 1 1 0 8 0
amappl12 168 1005 0 962 3 0 3 3 0 8 0
amappl11 160 35 0 35 1 1 0 1 0 8 0
amappl10 152 46 0 32 1 0 1 1 0 8 0
amappl9 144 256 0 256 1 1 0 1 0 8 0
amappl8 136 71 0 69 1 0 1 1 0 8 0
amappl7 128 83 0 82 1 0 1 1 0 8 0
amappl6 120 287 0 274 1 0 1 1 0 8 0
amappl5 112 74 0 64 1 0 1 1 0 8 0
amappl4 104 415 0 383 1 0 1 1 0 8 0
amappl3 96 2900 0 2788 5 1 4 4 0 8 0
amappl2 88 520 0 461 2 0 2 2 0 8 0
amappl1 80 9872 0 9281 14 0 14 14 0 8 1
amappl 88 4511 0 4335 5 0 5 5 0 92 0
uvmvnodes 80 105 0 0 3 0 3 3 0 8 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 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 646 0 615 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 646 0 615 1 0 1 1 0 8 0
vmmpekpl 168 7111 0 7076 2 0 2 2 0 8 0
vmmpepl 168 47419 0 45495 96 2 94 94 0 357 1
vmsppl 488 645 0 615 5 1 4 5 0 8 0
rwobjpl 80 15457 0 14416 27 1 26 26 0 8 1
pdppl 4096 1299 0 1230 103 32 71 87 0 8 2
pvpl 32 15770 0 0 127 0 127 127 0 265 0
pmappl 256 645 0 615 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 286 0 36 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83890ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x706e9a3860a0, count: 12
ddb{0}> trace
x86_ipi_db(ffffffff83890ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x706e9a3860a0, count: -3
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x25: addq $0x8,%rsp
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83346002) at panic+0x1e5 sys/kern/subr_prf.c:198
vgonel(fffffd805e81a0e0,ffff8000ffffdc90) at vgonel+0x663
vrecycle(fffffd805e81a0e0,ffff8000ffffdc90) at vrecycle+0x7c sys/kern/vfs_subr.c:1136
ufs_inactive(ffff80002a31a9a0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffffd805e81a0e0,ffff8000ffffdc90) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498
vput(fffffd805e81a0e0) at vput+0xe5 sys/kern/vfs_subr.c:789
VOP_REMOVE(fffffd805e81acb0,fffffd805e81a0e0,ffff80002a31ab08) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff8000ffffdc90,ffffff9c,7d444fa6f780,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1904
syscall(ffff80002a31ac80) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a31ac80) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d444fa6fc30, count: 4
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83346002) at panic+0x1e5 sys/kern/subr_prf.c:198
vgonel(fffffd805e81a0e0,ffff8000ffffdc90) at vgonel+0x663
vrecycle(fffffd805e81a0e0,ffff8000ffffdc90) at vrecycle+0x7c sys/kern/vfs_subr.c:1136
ufs_inactive(ffff80002a31a9a0) at ufs_inactive+0x35c sys/ufs/ufs/ufs_inode.c:107
VOP_INACTIVE(fffffd805e81a0e0,ffff8000ffffdc90) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498
vput(fffffd805e81a0e0) at vput+0xe5 sys/kern/vfs_subr.c:789
VOP_REMOVE(fffffd805e81acb0,fffffd805e81a0e0,ffff80002a31ab08) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336
dounlinkat(ffff8000ffffdc90,ffffff9c,7d444fa6f780,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1904
syscall(ffff80002a31ac80) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a31ac80) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d444fa6fc30, count: -11