¹juvm_fault(0xfffffd80656987c8, 0x48, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
103014 81437 0 0 0 0 syz-executor
witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260
clockintr_unbind(ffff800001505430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c01e610) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80688b4c20,81,fffffd80097fb4e0,ffff80002a271240) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd80653f0cc8,ffff80002a271240) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd80653f0cc8,ffff80002a271240) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80002a271240) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80002a271240,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80002a271240,ffff80003c01e980,ffff80003c01e8d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c01e980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c01e980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
end trace frame: 0xffff80003c01ea00, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd80656987c8, 0x48, 0, 1) -> e
ddb{1}> trace
witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260
clockintr_unbind(ffff800001505430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c01e610) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80688b4c20,81,fffffd80097fb4e0,ffff80002a271240) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd80653f0cc8,ffff80002a271240) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd80653f0cc8,ffff80002a271240) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80002a271240) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80002a271240,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80002a271240,ffff80003c01e980,ffff80003c01e8d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c01e980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c01e980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7217c2a439d0, count: -15
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80003c01e470
rbx 0
rdx 0
rcx 0xffff80002a271240
rax 0xffff8000299edffe
r8 0
r9 0x1
r10 0
r11 0x2d4b2e4180d14684
r12 0xfe
r13 0x9
r14 0x28
r15 0
rip 0xffffffff8149bb25 witness_checkorder+0xb5
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c01e3d0
ss 0x10
witness_checkorder+0xb5: movl 0x20(%r14),%r15d
ddb{1}> show proc
PROC (syz-executor) tid=75426 pid=61653 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=82, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80002a271240 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff80002a2702b0,0xffff80003c43ed30
process=0xffff8000fffee698 user=0xffff80003c019000, vmspace=0xfffffd80656987c8
estcpu=32, cpticks=5, pctcpu=0.1, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
81437 103014 51827 0 7 0 syz-executor
81437 198244 51827 0 2 0x4000000 syz-executor
88438 476495 65517 0 2 0 syz-executor
88438 77466 65517 0 3 0x4000080 fsleep syz-executor
44147 314838 64123 0 2 0 syz-executor
44147 185289 64123 0 2 0x4000000 syz-executor
24524 33291 5012 0 2 0 syz-executor
24524 259068 5012 0 3 0x4000080 fsleep syz-executor
24524 135236 5012 0 3 0x4000080 fsleep syz-executor
31807 358516 42724 0 2 0 syz-executor
31807 40136 42724 0 3 0x4000080 kqsel syz-executor
31807 128176 42724 0 3 0x4000080 fsleep syz-executor
31807 41021 42724 0 3 0x4000080 fsleep syz-executor
34415 507215 89413 0 3 0x80 nanoslp syz-executor
34415 412985 89413 0 3 0x4000080 fsleep syz-executor
34415 119592 89413 0 3 0x4000080 lockf syz-executor
34415 163344 89413 0 3 0x4000080 lockf syz-executor
34415 153702 89413 0 3 0x4000080 fsleep syz-executor
78603 69955 0 0 3 0x14200 acct acct
51827 471655 74904 0 2 0x3 syz-executor
47780 300762 74904 0 2 0x3 syz-executor
42724 186355 74904 0 2 0x2 syz-executor
13823 271152 74904 0 2 0x3 syz-executor
89413 433341 74904 0 2 0x3 syz-executor
5012 23819 74904 0 2 0x2 syz-executor
64123 144734 74904 0 2 0x3 syz-executor
65517 124193 74904 0 3 0x82 nanoslp syz-executor
74904 473996 96962 0 3 0x82 kqread syz-executor
96962 511609 77038 0 3 0x10008a sigsusp ksh
77038 217585 40487 0 3 0x98 kqread sshd-session
40487 299071 23718 0 3 0x92 kqread sshd-session
5422 354818 1 0 3 0x100083 ttyin getty
23718 136145 1 0 3 0x88 kqread sshd
41243 180255 19441 74 3 0x1100092 bpf pflogd
19441 459309 1 0 3 0x80 sbwait pflogd
18679 475750 46254 73 3 0x1100090 kqread syslogd
46254 446526 1 0 3 0x100082 sbwait syslogd
3843 168924 1 0 3 0x100080 kqread resolvd
95201 190372 19378 77 3 0x100092 kqread dhcpleased
56267 238842 19378 77 3 0x100092 kqread dhcpleased
19378 341317 1 0 3 0x80 kqread dhcpleased
11584 219566 0 0 3 0x14200 bored smr
33112 115992 0 0 2 0x14200 zerothread
98037 391926 0 0 3 0x14200 aiodoned aiodoned
75696 24467 0 0 3 0x14200 syncer update
25287 344761 0 0 3 0x14200 cleaner cleaner
85533 288502 0 0 3 0x14200 reaper reaper
9267 34780 0 0 3 0x14200 pgdaemon pagedaemon
21130 472936 0 0 3 0x14200 bored viomb
38096 371019 0 0 3 0x40014200 acpi0 acpi0
30246 417752 0 0 3 0x40014200 idle1
36682 11921 0 0 3 0x14200 bored softnet1
45253 26716 0 0 3 0x14200 bored softnet0
73922 430498 0 0 3 0x14200 bored systqmp
21365 229965 0 0 3 0x14200 bored systq
12887 350706 0 0 3 0x14200 tmoslp softclockmp
16439 170034 0 0 3 0x40014200 tmoslp softclock
37761 349561 0 0 3 0x40014200 idle0
1 13391 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 81437 (syz-executor) thread 0xffff8000fffe8020 (198244)
exclusive rwlock vmmaplk r = 0 (0xfffffd80656984f8)
#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 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171
#3 uvm_mapanon+0x28f sys/uvm/uvm_map.c:-1
#4 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
#5 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
#6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765
#7 Xsyscall+0x128
Process 44147 (syz-executor) thread 0xffff8000fffe82b8 (185289)
exclusive rwlock vmmaplk r = 0 (0xfffffd8065698310)
#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_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1902
#3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:699
#4 uvm_fault+0x106 sys/uvm/uvm_fault.c:633
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x42f sys/arch/amd64/amd64/trap.c:622
#7 recall_trap+0x8
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10245 11150K 11250K 166960K 11771 0
pcb 17 14K 16K 166960K 79 0
rtable 246 11K 11K 166960K 450 0
pf 35 17K 19K 166960K 97 0
ifaddr 44 8K 8K 166960K 78 0
ifgroup 55 2K 2K 166960K 116 0
sysctl 4 1K 9K 166960K 9 0
counters 68 36K 38K 166960K 156 0
ioctlops 0 0K 4K 166960K 1567 0
iov 0 0K 20K 166960K 24 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1348 85K 85K 166960K 1654 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 5 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 34 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 89K 166960K 521 0
sigio 0 0K 0K 166960K 5 0
proc 72 115K 164K 166960K 575 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 1 0K 0K 166960K 53 0
in_multi 100 7K 7K 166960K 126 0
ether_multi 2 0K 0K 166960K 5 0
mrt 1 0K 0K 166960K 3 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 247 1102K 1102K 166960K 247 0
exec 0 0K 1K 166960K 428 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 251 167K 186K 166960K 6647 0
UVM aobj 7 3K 3K 166960K 7 0
pinsyscall 42 84K 100K 166960K 1693 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 25 0
NDP 12 0K 1K 166960K 48 0
temp 59 8659K 8727K 166960K 21299 0
kqueue 15 24K 28K 166960K 104 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 62 0 59 1 0 1 1 0 8 0
rtentry 176 133 0 31 6 0 6 6 0 8 0
unpcb 144 404 0 386 4 3 1 4 0 8 0
syncache 336 6 0 6 3 2 1 1 0 8 1
tcpqe 32 1 0 1 1 0 1 1 0 8 1
tcpcb 736 101 0 95 1 0 1 1 0 8 0
arp 136 21 0 2 1 0 1 1 0 8 0
inpcb 328 611 0 602 15 6 9 9 0 8 8
nd6 152 28 0 2 1 0 1 1 0 8 0
pkpcb 40 3 0 3 1 1 0 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 1 0 1 0 8 0
ppxss 1192 36 0 36 2 1 1 1 0 8 1
pppxif 1504 6 0 6 1 1 0 1 0 8 0
pfstscr 40 7 0 6 1 0 1 1 0 8 0
pffrag 232 4 0 1 1 0 1 1 0 482 0
pffrnode 88 4 0 1 1 0 1 1 0 8 0
pffrent 40 6 0 3 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
pftag 88 1 0 1 1 1 0 1 0 8 0
pfstitem 24 49 0 9 1 0 1 1 0 8 0
pfstkey 128 52 0 12 2 0 2 2 0 8 0
pfstate 384 51 0 12 5 0 5 5 0 8 0
pfrule 1344 26 0 21 2 1 1 2 0 8 0
art_heap8 4096 3 0 1 2 0 2 2 0 8 0
art_heap4 256 551 0 114 30 1 29 29 0 8 1
art_table 40 554 0 115 5 0 5 5 0 8 0
art_node 32 133 0 41 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 29 0 19 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 2295 0 780 96 0 96 96 0 8 0
ffsino 296 2295 0 780 118 0 118 118 0 8 0
nchpl 144 3054 0 1354 64 0 64 64 0 8 0
rtmask 32 12 0 12 2 1 1 1 0 8 1
vnodes 216 2541 0 0 142 0 142 142 0 8 0
namei 1024 10147 0 10147 4 3 1 2 0 8 1
percpumem 16 93 0 44 1 0 1 1 0 8 0
kstatmem 264 66 0 40 4 1 3 3 0 8 1
scsiplug 72 2 0 2 1 1 0 1 0 8 0
scxspl 216 10569 0 10569 10 9 1 8 1 8 1
plimitpl 152 87 0 69 1 0 1 1 0 8 0
sigapl 424 843 0 795 7 1 6 7 0 8 0
knotepl 120 316 0 0 10 0 10 10 0 8 0
kqueuepl 224 234 0 221 1 0 1 1 0 8 0
pipepl 344 159 0 132 4 1 3 4 0 8 0
fdescpl 528 826 0 795 3 0 3 3 0 8 0
filepl 160 4606 0 4382 18 4 14 14 0 8 3
lockfpl 104 212 0 207 1 0 1 1 0 8 0
lockfspl 48 78 0 75 1 0 1 1 0 8 0
sessionpl 144 25 0 16 1 0 1 1 0 8 0
pgrppl 48 36 0 19 1 0 1 1 0 8 0
ucredpl 104 696 0 683 1 0 1 1 0 8 0
zombiepl 144 856 0 855 1 0 1 1 0 8 0
processpl 1232 843 0 795 5 1 4 5 0 8 0
procpl 664 1571 0 1511 6 0 6 6 0 8 0
sosppl 176 4 0 4 2 1 1 1 0 8 1
sockpl 752 1093 0 1063 23 12 11 14 0 8 7
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 114 0 0 15 0 15 15 0 8 0
mcl2k 2048 36 0 0 5 0 5 5 0 8 0
mtagpl 96 5 0 0 1 0 1 1 0 8 0
mbufpl 256 195 0 0 12 0 12 12 0 8 0
bufpl 280 3396 0 130 234 0 234 234 0 8 0
anonpl 32 7562 0 0 61 0 61 61 0 246 0
amapchunkpl 152 21823 0 21314 34 11 23 31 0 158 2
amappl16 200 2750 0 2716 16 13 3 14 0 8 0
amappl15 192 14 0 14 1 1 0 1 0 8 0
amappl14 184 6 0 6 1 1 0 1 0 8 0
amappl13 176 433 0 432 1 0 1 1 0 8 0
amappl12 168 1203 0 1161 3 0 3 3 0 8 0
amappl11 160 3 0 2 1 0 1 1 0 8 0
amappl10 152 61 0 47 1 0 1 1 0 8 0
amappl9 144 254 0 254 1 1 0 1 0 8 0
amappl8 136 39 0 37 1 0 1 1 0 8 0
amappl7 128 85 0 84 1 0 1 1 0 8 0
amappl6 120 279 0 266 1 0 1 1 0 8 0
amappl5 112 81 0 69 1 0 1 1 0 8 0
amappl4 104 441 0 412 1 0 1 1 0 8 0
amappl3 96 3615 0 3518 3 0 3 3 0 8 0
amappl2 88 963 0 888 2 0 2 2 0 8 0
amappl1 80 11912 0 11310 16 1 15 15 0 8 0
amappl 88 5819 0 5646 5 0 5 5 0 92 0
uvmvnodes 80 2541 0 0 52 0 52 52 0 8 0
dma65536 65536 1 0 1 1 1 0 1 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 128 254 0 254 2 2 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 6 0 0 1 0 1 1 0 8 0
uaddrrnd 24 826 0 795 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 826 0 795 1 0 1 1 0 8 0
vmmpekpl 168 8987 0 8954 2 0 2 2 0 8 0
vmmpepl 168 60560 0 58619 99 8 91 95 0 357 1
vmsppl 488 825 0 795 6 1 5 5 0 8 1
rwobjpl 80 21855 0 18364 74 2 72 72 0 8 0
pdppl 4096 1659 0 1590 109 38 71 83 0 8 2
pvpl 32 15767 0 0 128 1 127 127 0 265 0
pmappl 256 825 0 795 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 293 0 48 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83826ff0) 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: 0x7daa8beba310, count: 12
ddb{0}> trace
x86_ipi_db(ffffffff83826ff0) 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: 0x7daa8beba310, count: -3
ddb{0}> machine ddbcpu 1
Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d
witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260
clockintr_unbind(ffff800001505430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c01e610) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80688b4c20,81,fffffd80097fb4e0,ffff80002a271240) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd80653f0cc8,ffff80002a271240) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd80653f0cc8,ffff80002a271240) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80002a271240) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80002a271240,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80002a271240,ffff80003c01e980,ffff80003c01e8d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c01e980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c01e980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
end trace frame: 0xffff80003c01ea00, count: 0
ddb{1}> trace
witness_checkorder(28,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(18) at mtx_enter+0x4a sys/kern/kern_lock.c:260
clockintr_unbind(ffff800001505430,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80002a271240) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c01e610) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd80688b4c20,81,fffffd80097fb4e0,ffff80002a271240) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80653f0cc8,ffff80002a271240) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd80653f0cc8,ffff80002a271240) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd80653f0cc8,ffff80002a271240) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80002a271240) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80002a271240,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80002a271240,ffff80003c01e980,ffff80003c01e8d0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c01e980) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c01e980) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7217c2a439d0, count: -15