uvm_fault(0xfffffd806b9f95d0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
90892 19199 0 0 0 0 syz-executor
dt_ioctl_record_stop(ffff800001611000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003902d240) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8069651a38,81,fffffd80097fb208,ffff80003c452a88) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805d6593c0,ffff80003c452a88) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805d6593c0,ffff80003c452a88) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80003c452a88) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80003c452a88,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003c452a88,ffff80003902d5b0,ffff80003902d500) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003902d5b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003902d5b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bbfa696e260, count: 3
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(0xfffffd806b9f95d0, 0x0, 0, 1) -> e
ddb{1}> trace
dt_ioctl_record_stop(ffff800001611000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003902d240) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8069651a38,81,fffffd80097fb208,ffff80003c452a88) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805d6593c0,ffff80003c452a88) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805d6593c0,ffff80003c452a88) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80003c452a88) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80003c452a88,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003c452a88,ffff80003902d5b0,ffff80003902d500) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003902d5b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003902d5b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bbfa696e260, count: -12
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80003902d170
rbx 0x1
rdx 0
rcx 0xffff80003c452a88
rax 0xffffffff83855660 dt_prov_static
r8 0
r9 0x1
r10 0x6b65d9d532f9b857
r11 0x44e3dcedec7543dc
r12 0
r13 0
r14 0
r15 0xffff80000148a400
rip 0xffffffff81afcf38 dt_ioctl_record_stop+0x108
cs 0x8
rflags 0x10207 __ALIGN_SIZE+0xf207
rsp 0xffff80003902d140
ss 0x10
dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
ddb{1}> show proc
PROC (syz-executor) tid=428156 pid=72984 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80003c452a88 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff80003c452d20,0xffff80003c452038
process=0xffff800038825830 user=0xffff800039028000, vmspace=0xfffffd806b9f95d0
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
73877 122259 12966 0 2 0 syz-executor
73877 469378 12966 0 3 0x4000080 fsleep syz-executor
61745 201402 55962 0 2 0 syz-executor
61745 234267 55962 0 2 0x4000000 syz-executor
26259 100985 81152 60928 2 0x10 syz-executor
26259 147182 81152 60928 3 0x4000090 fsleep syz-executor
37090 139547 82864 0 2 0 syz-executor
37090 481244 82864 0 3 0x4000080 fsleep syz-executor
37090 155486 82864 0 2 0x4000000 syz-executor
19199 90892 77983 0 7 0 syz-executor
19199 242079 77983 0 3 0x4000080 sbwait syz-executor
19199 306671 77983 0 3 0x4000080 fsleep syz-executor
19199 74640 77983 0 2 0x4000000 syz-executor
50296 149441 79097 0 3 0x80 nanoslp syz-executor
50296 65949 79097 0 3 0x4000080 netcon syz-executor
50296 481914 79097 0 3 0x4000080 fsleep syz-executor
21691 335644 56758 0 3 0x80 nanoslp syz-executor
21691 112845 56758 0 3 0x4000080 sbwait syz-executor
21691 364301 56758 0 3 0x4000080 fsleep syz-executor
43653 21419 0 0 3 0x14200 acct acct
81152 334478 27032 0 3 0x82 nanoslp syz-executor
20447 19457 0 0 3 0x14200 bored sosplice
12966 344541 27032 0 3 0x82 nanoslp syz-executor
56758 103622 27032 0 3 0x82 nanoslp syz-executor
82864 349955 27032 0 2 0x3 syz-executor
77983 99323 27032 0 3 0x82 nanoslp syz-executor
55962 299105 27032 0 3 0x82 nanoslp syz-executor
63535 391896 27032 0 3 0x82 nanoslp syz-executor
79097 244226 27032 0 3 0x82 nanoslp syz-executor
27032 121793 38876 0 3 0x82 kqread syz-executor
38876 516720 12885 0 3 0x10008a sigsusp ksh
12885 93164 10047 0 3 0x98 kqread sshd-session
10047 490379 45128 0 3 0x92 kqread sshd-session
303 486318 1 0 3 0x100083 ttyin getty
45128 483419 1 0 3 0x88 kqread sshd
78370 56773 96615 74 3 0x1100092 bpf pflogd
96615 47416 1 0 3 0x80 sbwait pflogd
20068 497974 80490 73 3 0x1100090 kqread syslogd
80490 513445 1 0 3 0x100082 sbwait syslogd
20552 220894 1 0 3 0x100080 kqread resolvd
77116 72410 47035 77 3 0x100092 kqread dhcpleased
17155 481517 47035 77 3 0x100092 kqread dhcpleased
47035 68089 1 0 3 0x80 kqread dhcpleased
76030 386170 0 0 3 0x14200 bored smr
38491 463051 0 0 2 0x14200 zerothread
92712 493221 0 0 3 0x14200 aiodoned aiodoned
3484 505714 0 0 3 0x14200 syncer update
12954 399148 0 0 3 0x14200 cleaner cleaner
72149 403548 0 0 2 0x14200 reaper
35555 104530 0 0 3 0x14200 pgdaemon pagedaemon
99493 516005 0 0 3 0x14200 bored viomb
63309 216686 0 0 3 0x40014200 acpi0 acpi0
87446 463574 0 0 3 0x40014200 idle1
34748 100789 0 0 3 0x14200 bored softnet7
36215 417319 0 0 3 0x14200 bored softnet6
65639 343957 0 0 3 0x14200 bored softnet5
57895 20959 0 0 3 0x14200 bored softnet4
22141 383038 0 0 3 0x14200 bored softnet3
6453 518936 0 0 3 0x14200 bored softnet2
55175 258405 0 0 3 0x14200 bored softnet1
48098 28019 0 0 3 0x14200 bored softnet0
78912 418983 0 0 3 0x14200 bored systqmp
48275 454594 0 0 3 0x14200 bored systq
90813 78902 0 0 3 0x14200 tmoslp softclockmp
3214 497044 0 0 3 0x40014200 tmoslp softclock
39617 91388 0 0 3 0x40014200 idle0
1 26818 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{1}> show all locks
Process 37090 (syz-executor) thread 0xffff8000ffff3238 (155486)
exclusive rwlock vmmaplk r = 0 (0xfffffd805f0e48d0)
#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:5168
#3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918
#4 uvm_fault_check+0x895 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline]
#4 uvm_fault_check+0x895 sys/uvm/uvm_fault.c:784
#5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677
#6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#7 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603
#8 recall_trap+0x8
Process 19199 (syz-executor) thread 0xffff8000ffff34d0 (74640)
exclusive rwlock vmmaplk r = 0 (0xfffffd806b9f94e8)
#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:5168
#3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918
#4 uvm_fault_check+0x895 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline]
#4 uvm_fault_check+0x895 sys/uvm/uvm_fault.c:784
#5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677
#6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#7 usertrap+0x3c6 sys/arch/amd64/amd64/trap.c:603
#8 recall_trap+0x8
Process 72149 (reaper) thread 0xffff8000ffffc538 (403548)
exclusive rwlock kmmaplk r = 0 (0xffffffff83981f30)
#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:5168
#3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792
#4 km_free+0x87 sys/uvm/uvm_km.c:831
#5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304
#6 reaper+0x1aa sys/kern/kern_exit.c:493
#7 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10241 11055K 13070K 166960K 12438 0
pcb 17 14K 15K 166960K 246 0
rtable 206 10K 10K 166960K 420 0
pf 38 18K 131090K 166960K 163 0
ifaddr 43 7K 8K 166960K 108 0
ifgroup 56 2K 2K 166960K 182 0
sysctl 4 1K 9K 166960K 21 0
counters 70 37K 38K 166960K 206 0
ioctlops 0 0K 4K 166960K 1648 0
iov 0 0K 17K 166960K 63 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1471 93K 93K 166960K 2263 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 7 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 43 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 93K 166960K 1109 0
sigio 0 0K 0K 166960K 61 0
proc 73 115K 164K 166960K 638 0
subproc 72 4K 4K 166960K 83 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 122 0
in_multi 89 6K 7K 166960K 165 0
ether_multi 1 0K 0K 166960K 11 0
mrt 0 0K 0K 166960K 11 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 253 1129K 1129K 166960K 253 0
exec 0 0K 1K 166960K 492 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 264 162K 175K 166960K 12158 0
UVM aobj 41 5K 5K 166960K 43 0
pinsyscall 43 86K 103K 166960K 2253 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 99 0
NDP 12 0K 2K 166960K 72 0
temp 78 8652K 8720K 166960K 59100 0
kqueue 19 28K 32K 166960K 235 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 120 177 0 174 3 2 1 3 0 8 0
rtentry 176 137 0 55 5 0 5 5 0 8 0
unpcb 144 809 0 786 11 3 8 8 0 8 7
syncache 336 11 0 11 3 2 1 1 0 8 1
tcpqe 32 12 0 12 2 2 0 1 0 8 0
tcpcb 736 304 0 295 6 4 2 4 0 8 1
arp 128 13 0 3 1 0 1 1 0 8 0
inpcb 328 1162 0 1148 19 14 5 12 0 8 3
nd6 144 24 0 6 1 0 1 1 0 8 0
pkpcb 40 7 0 7 2 1 1 1 0 8 1
kcovpl 48 9 0 1 1 0 1 1 0 8 0
ppxss 1192 54 0 52 2 1 1 1 0 8 0
pppxif 1504 6 0 6 3 2 1 1 0 8 1
pfstscr 40 2 0 2 2 1 1 1 0 8 1
pffrag 232 9 0 1 1 0 1 1 0 482 0
pffrnode 88 8 0 1 1 0 1 1 0 8 0
pffrent 40 13 0 5 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
pfrktable 1344 1 0 1 1 1 0 1 0 8 0
pftag 88 2 0 0 1 0 1 1 0 8 0
pfstitem 24 67 0 26 1 0 1 1 0 8 0
pfstkey 128 70 0 29 2 0 2 2 0 8 0
pfstate 384 69 0 28 6 0 6 6 0 8 0
pfrule 1344 30 0 25 2 1 1 2 0 8 0
rttmr 136 2 0 2 2 1 1 1 0 8 1
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 677 0 277 32 5 27 30 0 8 1
art_table 40 680 0 277 5 0 5 5 0 8 0
art_node 32 136 0 66 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 37 0 27 1 0 1 1 0 8 0
shmpl 112 40 0 2 2 0 2 2 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 3562 0 2055 96 0 96 96 0 8 0
ffsino 296 3562 0 2055 118 0 118 118 0 8 0
nchpl 144 5110 0 3411 64 0 64 64 0 8 0
rtmask 32 14 0 13 3 2 1 1 0 8 0
uvmvnodes 80 4046 0 0 83 0 83 83 0 8 0
vnodes 216 4046 0 0 225 0 225 225 0 8 0
namei 1024 17481 0 17481 3 2 1 2 0 8 1
percpumem 16 118 0 68 1 0 1 1 0 8 0
kstatmem 264 110 0 84 5 2 3 3 0 8 1
scsiplug 72 5 0 5 2 1 1 1 0 8 1
scxspl 216 31613 0 31613 13 10 3 8 1 8 3
plimitpl 152 303 0 283 1 0 1 1 0 8 0
sigapl 424 1443 0 1387 9 2 7 9 0 8 0
knotepl 120 557 0 0 17 0 17 17 0 8 0
kqueuepl 224 413 0 398 5 3 2 3 0 8 1
pipepl 344 260 0 233 9 6 3 9 0 8 0
fdescpl 528 1395 0 1363 3 0 3 3 0 8 0
filepl 160 9171 0 8941 26 8 18 21 0 8 6
lockfpl 104 578 0 575 2 1 1 2 0 8 0
lockfspl 48 195 0 192 1 0 1 1 0 8 0
sessionpl 144 31 0 22 1 0 1 1 0 8 0
pgrppl 48 92 0 75 1 0 1 1 0 8 0
ucredpl 104 1690 0 1674 1 0 1 1 0 8 0
zombiepl 144 1723 0 1722 1 0 1 1 0 8 0
processpl 1232 1443 0 1387 6 1 5 6 0 8 0
procpl 664 3143 0 3074 8 1 7 8 0 8 1
sosppl 168 7 0 7 2 2 0 1 0 8 0
sockpl 752 2211 0 2171 35 23 12 21 0 8 7
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 108 0 0 14 0 14 14 0 8 0
mcl2k 2048 33 0 0 4 0 4 4 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 291 0 0 18 0 18 18 0 8 0
bufpl 280 12903 0 6760 440 0 440 440 0 8 0
anonpl 32 11816 0 0 96 0 96 96 0 246 0
amapchunkpl 152 41294 0 40711 46 19 27 35 0 158 4
amappl16 200 5489 0 5447 31 16 15 23 0 8 3
amappl15 192 8 0 7 1 0 1 1 0 8 0
amappl14 184 128 0 116 1 0 1 1 0 8 0
amappl13 176 7 0 7 1 1 0 1 0 8 0
amappl12 168 2061 0 2029 3 1 2 2 0 8 0
amappl11 160 54 0 40 1 0 1 1 0 8 0
amappl10 152 8 0 8 1 1 0 1 0 8 0
amappl9 144 249 0 249 1 1 0 1 0 8 0
amappl8 136 56 0 53 1 0 1 1 0 8 0
amappl7 128 114 0 102 1 0 1 1 0 8 0
amappl6 120 195 0 192 1 0 1 1 0 8 0
amappl5 112 130 0 120 1 0 1 1 0 8 0
amappl4 104 337 0 314 1 0 1 1 0 8 0
amappl3 96 8005 0 7877 5 1 4 4 0 8 0
amappl2 88 706 0 643 2 0 2 2 0 8 0
amappl1 80 14027 0 13422 16 1 15 15 0 8 0
amappl 88 11233 0 11043 5 0 5 5 0 92 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 7 0 7 2 1 1 1 0 8 1
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 8 0 8 3 2 1 1 0 8 1
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 21 0 20 1 0 1 1 0 8 0
aobjpl 72 42 0 2 1 0 1 1 0 8 0
uaddrrnd 24 1395 0 1363 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1395 0 1363 1 0 1 1 0 8 0
vmmpekpl 168 13300 0 13258 3 0 3 3 0 8 0
vmmpepl 168 95556 0 93474 110 5 105 106 0 357 8
vmsppl 488 1394 0 1363 7 2 5 5 0 8 0
rwobjpl 80 32299 0 27235 104 0 104 104 0 8 0
pdppl 4096 2798 0 2726 108 36 72 86 0 8 0
pvpl 32 20205 0 0 163 0 163 163 0 265 0
pmappl 256 1394 0 1363 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 303 0 52 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83781ff0) 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: 0x723f3056e760, count: 12
ddb{0}> trace
x86_ipi_db(ffffffff83781ff0) 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: 0x723f3056e760, count: -3
ddb{0}> machine ddbcpu 1
Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
dt_ioctl_record_stop(ffff800001611000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003902d240) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8069651a38,81,fffffd80097fb208,ffff80003c452a88) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805d6593c0,ffff80003c452a88) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805d6593c0,ffff80003c452a88) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80003c452a88) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80003c452a88,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003c452a88,ffff80003902d5b0,ffff80003902d500) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003902d5b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003902d5b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bbfa696e260, count: 3
ddb{1}> trace
dt_ioctl_record_stop(ffff800001611000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:586
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff80003c452a88) at dtclose+0x109 sys/dev/dt/dt_dev.c:232
spec_close(ffff80003902d240) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8069651a38,81,fffffd80097fb208,ffff80003c452a88) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805d6593c0,ffff80003c452a88) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805d6593c0,ffff80003c452a88) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd805d6593c0,ffff80003c452a88) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff80003c452a88) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff80003c452a88,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003c452a88,ffff80003902d5b0,ffff80003902d500) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003902d5b0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003902d5b0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:746
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7bbfa696e260, count: -12