panic: kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*247295 22590 0 0 0x4000000 0 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207
__assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154
buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179
buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131
brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948
vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981
ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326
ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573
vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816
ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544
end trace frame: 0xffff8000205dd820, count: 0
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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel diagnostic assertion "pg->wire_count == 1" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 310
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207
__assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154
buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179
buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131
brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948
vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981
ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326
ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573
vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816
ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline]
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488
sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529
syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xec199989db0, count: -18
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff8000205dd0b0
rbx 0xffff8000205dd160
rdx 0x2
rcx 0
rax 0x1
r8 0xffffffff81a28cbf kprintf+0x15f
r9 0x1
r10 0x2
r11 0x88878de8411ced01
r12 0x3000000008
r13 0xffff8000205dd0c0
r14 0x100
r15 0x1
rip 0xffffffff81eb16e8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000205dd0a0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.1) pid=247295 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff80001d75daf8,0xffffffff827f1be8
process=0xffff80002059e770 user=0xffff8000205d8000, vmspace=0xfffffd805783e780
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
22590 166154 71481 0 2 0 syz-executor.1
*22590 247295 71481 0 7 0x4000000 syz-executor.1
71481 512906 41670 0 3 0x82 nanosleep syz-executor.1
12958 446867 0 0 3 0x14280 nfsidl nfsio
1557 364716 0 0 3 0x14280 nfsidl nfsio
50570 23117 0 0 3 0x14280 nfsidl nfsio
74786 20875 0 0 3 0x14280 nfsidl nfsio
93296 221509 0 0 3 0x14280 nfsidl nfsio
17839 253034 0 0 3 0x14280 nfsidl nfsio
89861 523781 0 0 3 0x14280 nfsidl nfsio
30201 290486 0 0 3 0x14280 nfsidl nfsio
19440 101798 0 0 3 0x14280 nfsidl nfsio
13305 238676 0 0 3 0x14280 nfsidl nfsio
88030 415033 0 0 3 0x14280 nfsidl nfsio
37988 394244 0 0 3 0x14280 nfsidl nfsio
4907 138975 0 0 3 0x14280 nfsidl nfsio
40209 283664 0 0 3 0x14280 nfsidl nfsio
64825 255705 0 0 3 0x14280 nfsidl nfsio
30027 522338 0 0 3 0x14280 nfsidl nfsio
64910 44238 0 0 3 0x14280 nfsidl nfsio
68349 218191 0 0 3 0x14280 nfsidl nfsio
69103 414865 0 0 3 0x14280 nfsidl nfsio
7129 272760 0 0 3 0x14280 nfsidl nfsio
45366 484236 41670 0 3 0x82 piperd syz-executor.0
59479 439516 1 0 3 0x100083 ttyin getty
84677 68871 0 0 3 0x14200 bored sosplice
41670 214227 99204 0 3 0x82 thrsleep syz-fuzzer
41670 109278 99204 0 3 0x4000082 nanosleep syz-fuzzer
41670 255452 99204 0 2 0x4000002 syz-fuzzer
41670 86558 99204 0 3 0x4000082 thrsleep syz-fuzzer
41670 182877 99204 0 3 0x4000082 thrsleep syz-fuzzer
41670 32509 99204 0 3 0x4000082 thrsleep syz-fuzzer
41670 30619 99204 0 3 0x4000082 thrsleep syz-fuzzer
41670 465597 99204 0 3 0x4000082 thrsleep syz-fuzzer
99204 8845 91894 0 3 0x10008a pause ksh
91894 382674 58699 0 3 0x92 select sshd
58699 404995 1 0 3 0x80 select sshd
15905 450700 25123 73 3 0x100090 kqread syslogd
25123 265623 1 0 3 0x100082 netio syslogd
64286 279731 1 77 3 0x100090 poll dhclient
64226 236606 1 0 3 0x80 poll dhclient
73392 58539 0 0 3 0x14200 bored smr
5004 67532 0 0 2 0x14200 zerothread
66264 458732 0 0 3 0x14200 aiodoned aiodoned
85266 379901 0 0 3 0x14200 syncer update
33950 406405 0 0 3 0x14200 cleaner cleaner
17132 24771 0 0 3 0x14200 reaper reaper
66963 302259 0 0 3 0x14200 pgdaemon pagedaemon
52160 388413 0 0 3 0x14200 bored crynlk
98268 272024 0 0 3 0x14200 bored crypto
80200 436427 0 0 3 0x40014200 acpi0 acpi0
17470 191356 0 0 3 0x14200 bored softnet
6983 168697 0 0 3 0x14200 bored systqmp
75526 147516 0 0 3 0x14200 bored systq
15398 83109 0 0 3 0x40014200 bored softclock
62030 238705 0 0 3 0x40014200 idle0
1 231233 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9533 6507K 7205K 78643K 13591 0
pcb 13 8K 8K 78643K 180 0
rtable 132 14K 17K 78643K 965 0
ifaddr 102 20K 21K 78643K 321 0
sysctl 2 0K 0K 78643K 2 0
counters 21 16K 17K 78643K 45 0
ioctlops 0 0K 4K 78643K 228 0
iov 0 0K 16K 78643K 175 0
mount 1 1K 1K 78643K 1 0
vnodes 1220 77K 77K 78643K 2266 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 8 0
VM map 2 0K 0K 78643K 2 0
sem 12 1K 1K 78643K 121 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 5 13K 25K 78643K 1194 0
sigio 0 0K 0K 78643K 18 0
proc 52 38K 55K 78643K 604 0
subproc 32 2K 2K 78643K 85 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 107 0
in_multi 66 3K 3K 78643K 247 0
ether_multi 1 0K 0K 78643K 31 0
mrt 0 0K 0K 78643K 4 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 1K 78643K 356 0
pfkey data 0 0K 0K 78643K 2 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 151 121K 130K 78643K 3637 0
UVM aobj 57 6K 6K 78643K 68 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 1K 78643K 178 0
NDP 15 0K 0K 78643K 57 0
temp 157 3890K 3964K 78643K 63739 0
kqueue 3 4K 12K 78643K 61 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 17 0 9 1 0 1 1 0 8 0
rtpcb 80 91 0 89 1 0 1 1 0 8 0
rtentry 112 139 0 106 2 0 2 2 0 8 0
unpcb 120 391 0 381 1 0 1 1 0 8 0
syncache 264 8 0 8 3 3 0 1 0 8 0
tcpqe 32 39 0 39 1 1 0 1 0 8 0
tcpcb 544 376 0 372 1 0 1 1 0 8 0
ipq 40 11 0 11 3 3 0 1 0 8 0
ipqe 40 200 0 200 3 3 0 1 0 8 0
inpcb 296 2277 0 2270 6 4 2 2 0 8 1
nd6 48 28 0 25 3 2 1 1 0 8 0
pkpcb 40 12 0 12 3 3 0 1 0 8 0
ppxss 1128 4 0 4 3 3 0 1 0 8 0
pfosfp 40 1 0 0 1 0 1 1 0 8 0
pfosfpen 112 1 0 0 1 0 1 1 0 8 0
pfrktable 1344 147 0 126 4 2 2 3 0 8 0
pftag 88 25 0 18 1 0 1 1 0 8 0
pfqueue 264 2 0 2 1 1 0 1 0 8 0
pfstitem 24 2 0 0 1 0 1 1 0 8 0
pfstkey 112 10 0 8 2 1 1 1 0 8 0
pfstate 328 5 0 4 2 1 1 1 0 8 0
pfrule 1360 76 0 38 5 1 4 4 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 615 0 460 16 6 10 13 0 8 0
art_table 32 617 0 460 2 0 2 2 0 8 0
art_node 16 131 0 105 1 0 1 1 0 8 0
sysvmsgpl 40 45 0 22 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 113 0 103 1 0 1 1 0 8 0
shmpl 112 65 0 11 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 2987 0 1594 88 0 88 88 0 8 0
ffsino 240 2987 0 1594 83 0 83 83 0 8 0
nchpl 144 4884 0 3298 60 0 60 60 0 8 0
uvmvnodes 72 3902 0 0 71 0 71 71 0 8 0
vnodes 208 3902 0 0 206 0 206 206 0 8 0
namei 1024 15144 0 15144 7 6 1 1 0 8 1
vcpupl 1984 11 0 0 2 0 2 2 0 8 0
vmpool 528 23 0 12 1 0 1 1 0 8 0
pfiaddrpl 120 72 0 44 1 0 1 1 0 8 0
scsiplug 64 1 0 1 1 1 0 1 0 8 0
scxspl 192 33448 0 33447 5 4 1 1 0 8 0
plimitpl 152 101 0 94 1 0 1 1 0 8 0
sigapl 424 1395 0 1346 6 0 6 6 0 8 0
futexpl 56 24656 0 24656 6 5 1 1 0 8 1
knotepl 112 152 0 133 1 0 1 1 0 8 0
kqueuepl 144 156 0 153 1 0 1 1 0 8 0
pipepl 272 207 0 197 1 0 1 1 0 8 0
fdescpl 432 1359 0 1345 2 0 2 2 0 8 0
filepl 120 9246 0 9148 6 2 4 4 0 8 1
lockfpl 104 214 0 212 1 0 1 1 0 8 0
lockfspl 48 73 0 71 1 0 1 1 0 8 0
sessionpl 112 22 0 12 1 0 1 1 0 8 0
pgrppl 48 50 0 40 1 0 1 1 0 8 0
ucredpl 96 1352 0 1345 1 0 1 1 0 8 0
zombiepl 144 1346 0 1346 3 2 1 1 0 8 1
processpl 928 1395 0 1346 7 0 7 7 0 8 0
procpl 624 2753 0 2696 6 1 5 5 0 8 0
sosppl 128 17 0 17 5 5 0 1 0 8 0
sockpl 400 2773 0 2754 10 7 3 4 0 8 1
mcl64k 65536 341 0 341 38 38 0 33 0 8 0
mcl16k 16384 3 0 3 2 1 1 1 0 8 1
mcl12k 12288 35 0 35 6 5 1 1 0 8 1
mcl9k 9216 14 0 14 6 6 0 1 0 8 0
mcl8k 8192 44 0 44 5 5 0 1 0 8 0
mcl4k 4096 93 0 93 7 6 1 1 0 8 1
mcl2k2 2112 7 0 7 4 4 0 1 0 8 0
mcl2k 2048 72159 0 72106 17 9 8 12 0 8 0
mtagpl 96 101 0 85 3 2 1 2 0 8 0
mbufpl 256 124651 0 124446 56 38 18 30 0 8 0
bufpl 280 8122 0 2770 383 0 383 383 0 8 0
anonpl 16 171238 0 154843 126 47 79 88 0 107 5
amapchunkpl 152 6957 0 6779 43 31 12 18 0 158 4
amappl16 192 7217 0 6251 96 39 57 61 0 8 8
amappl15 184 2 0 0 1 0 1 1 0 8 0
amappl14 176 445 0 439 1 0 1 1 0 8 0
amappl13 168 417 0 413 1 0 1 1 0 8 0
amappl12 160 375 0 374 3 2 1 1 0 8 0
amappl11 152 53 0 43 1 0 1 1 0 8 0
amappl10 144 12 0 6 1 0 1 1 0 8 0
amappl9 136 713 0 710 1 0 1 1 0 8 0
amappl8 128 740 0 698 2 0 2 2 0 8 0
amappl7 120 129 0 117 1 0 1 1 0 8 0
amappl6 112 26 0 21 1 0 1 1 0 8 0
amappl5 104 948 0 935 1 0 1 1 0 8 0
amappl4 96 854 0 828 1 0 1 1 0 8 0
amappl3 88 923 0 917 1 0 1 1 0 8 0
amappl2 80 9873 0 9805 2 0 2 2 0 8 0
amappl1 72 32775 0 32363 23 13 10 17 0 8 0
amappl 80 3024 0 2970 3 1 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 67 0 11 1 0 1 1 0 8 0
uaddrrnd 24 1382 0 1357 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1382 0 1357 1 0 1 1 0 8 0
vmmpekpl 168 10524 0 10490 2 0 2 2 0 8 0
vmmpepl 168 168395 0 166281 220 117 103 129 0 357 5
vmsppl 272 1381 0 1357 3 1 2 2 0 8 0
pdppl 4096 2770 0 2725 8 2 6 6 0 8 0
pvpl 32 497975 0 478953 401 185 216 309 0 265 50
pmappl 200 1381 0 1357 2 0 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 360 0 123 9 2 7 9 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207
__assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154
buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179
buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131
brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948
vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981
ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326
ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573
vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816
ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline]
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488
sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529
syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xec199989db0, count: -18
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff823de954) at panic+0x15c sys/kern/subr_prf.c:207
__assert(ffffffff8244783d,ffffffff8245c7b0,136,ffffffff82418cb9) at __assert+0x2b sys/kern/subr_prf.c:154
buf_free_pages(fffffd80534db8f8) at buf_free_pages+0x1d3 sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd80534db8f8) at buf_dealloc_mem+0xe1 sys/kern/vfs_biomem.c:179
buf_put(fffffd80534db8f8) at buf_put+0x16b sys/kern/vfs_bio.c:131
brelse(fffffd80534db8f8) at brelse+0x27d sys/kern/vfs_bio.c:948
vinvalbuf(fffffd806a1459d8,2,ffffffffffffffff,ffff80001d75d618,0,ffffffffffffffff) at vinvalbuf+0x3b1 sys/kern/vfs_subr.c:1981
ffs_truncate(fffffd8057855b48,0,0,ffffffffffffffff) at ffs_truncate+0xeb1 sys/ufs/ffs/ffs_inode.c:326
ufs_inactive(ffff8000205dd5b8) at ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd806a1459d8,ffff80001d75d618) at VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573
vrele(fffffd806a1459d8) at vrele+0xca sys/kern/vfs_subr.c:816
ktrsettrace(ffff80001d6c43b0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
ktrops(ffff80001d75d618,ffff80001d6c43b0,0,80000300,fffffd805bf8f0d0,fffffd806c3bfb40) at ktrops+0x1a1 sys/kern/kern_ktrace.c:544
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d ktrsetchildren sys/kern/kern_ktrace.c:566 [inline]
doktrace(fffffd805bf8f0d0,4,300,0,ffff80001d75d618) at doktrace+0x60d sys/kern/kern_ktrace.c:488
sys_ktrace(ffff80001d75d618,ffff8000205dd978,ffff8000205dd9c0) at sys_ktrace+0xd5 sys/kern/kern_ktrace.c:529
syscall(ffff8000205dda40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xec199989db0, count: -18