witness: lock order reversal:
1st 0xffff8000299dee30 &cq->cq_mtx (&cq->cq_mtx)
2nd 0xffffffff839d5cf0 &sched_lock (&sched_lock)
lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock)
#0 mtx_enter+0x95 sys/kern/kern_lock.c:406
#1 sleep_setup+0xed sys/kern/kern_synch.c:304
#2 msleep_nsec+0x10b sys/kern/kern_synch.c:217
#3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
#4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#4 dtclose+0x109 sys/dev/dt/dt_dev.c:239
#5 spec_close+0x466 sys/kern/spec_vnops.c:-1
#6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
#7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#8 fdrop+0x121 sys/kern/kern_descrip.c:1280
#9 closef+0x192 sys/kern/kern_descrip.c:1264
#10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#11 Xsyscall+0x128
lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx)
#0 mtx_enter+0x95 sys/kern/kern_lock.c:406
#1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323
#2 mi_switch+0x187 sys/kern/sched_bsd.c:376
#3 ast+0x15a mi_ast sys/sys/syscall_mi.h:252 [inline]
#3 ast+0x15a sys/arch/amd64/amd64/trap.c:739
#4 intr_user_exit+0x3c
Stopped at db_enter+0x25: addq $0x8,%rsp
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(ffffffff839d5cf0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
mtx_enter(ffffffff839d5ce0) at mtx_enter+0x95 sys/kern/kern_lock.c:406
sleep_setup(ffff8000299dee80,220,ffffffff83432cf3) at sleep_setup+0xed sys/kern/kern_synch.c:304
msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff83432cf3,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217
dt_ioctl_record_stop(ffff800001644000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff8000fffe7a18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff8000fffe7a18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c4c4d00) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd800b957dc8,81,fffffd80097fd410,ffff8000fffe7a18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8064b22e60,ffff8000fffe7a18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8064b22e60,ffff8000fffe7a18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8064b22e60,ffff8000fffe7a18) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd8064b22e60,ffff8000fffe7a18) at closef+0x192 sys/kern/kern_descrip.c:1264
syscall(ffff80003c4c4f60) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4c4f60) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcc462a58e10, count: -14
ddb{0}> show registers
rdi 0
rsi 0x80000 acpi_pdirpa+0x6be71
rbp 0xffff80003c4c49d0
rbx 0
rdx 0xffff8000015f7340
rcx 0xffff8000fffe7a18
rax 0x7ffff acpi_pdirpa+0x6be70
r8 0xffff80003c4c48b0
r9 0x8080808080808080
r10 0xfee4808526a6165c
r11 0xbc07ee17630d1d4a
r12 0xfffffd8003f55e40
r13 0xfffffd8004700330
r14 0x3
r15 0xffffffff834249fa substchar+0x129b5
rip 0xffffffff8124bc15 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80003c4c49c0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=414543 pid=77058 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=83, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000383e02d0,0xffff8000fffe6568
process=0xffff8000383dc020 user=0xffff80003c4c0000, vmspace=0xfffffd805f20cb98
estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
52112 496749 42068 0 2 0 syz-executor
52112 7144 42068 0 3 0x4000080 fsleep syz-executor
98239 64130 57435 0 2 0 syz-executor
98239 511171 57435 0 3 0x4000080 fsleep syz-executor
90767 169452 93516 0 2 0 syz-executor
90767 230198 93516 0 3 0x4000080 fsleep syz-executor
82707 119813 50673 0 2 0 syz-executor
82707 95623 50673 0 3 0x4000080 ttyretype syz-executor
77058 16803 14100 0 2 0 syz-executor
*77058 414543 14100 0 7 0x4000000 syz-executor
72657 414455 98173 0 2 0 syz-executor
72657 416554 98173 0 3 0x4000080 fsleep syz-executor
72657 234074 98173 0 3 0x4000080 fsleep syz-executor
40162 518054 92435 0 2 0x10 syz-executor
40162 516047 92435 0 3 0x4000090 kqread syz-executor
40162 333328 92435 0 3 0x4000090 fsleep syz-executor
725 1369 0 0 3 0x14200 acct acct
34166 99706 57914 0 3 0x82 wait syz-executor
50673 476219 57914 0 3 0x82 nanoslp syz-executor
42068 217222 57914 0 3 0x82 nanoslp syz-executor
14100 383123 57914 0 3 0x82 nanoslp syz-executor
29894 126556 1 0 3 0x100083 ttyin getty
9142 166131 0 0 3 0x14280 nfsidl nfsio
43302 88304 0 0 3 0x14280 nfsidl nfsio
49445 141808 0 0 3 0x14280 nfsidl nfsio
90319 217034 0 0 3 0x14280 nfsidl nfsio
14376 235712 0 0 3 0x14280 nfsidl nfsio
28614 467193 0 0 3 0x14280 nfsidl nfsio
5538 6071 0 0 3 0x14280 nfsidl nfsio
45176 12100 0 0 3 0x14280 nfsidl nfsio
60148 117415 0 0 3 0x14280 nfsidl nfsio
79442 237025 0 0 3 0x14280 nfsidl nfsio
16305 438829 0 0 3 0x14280 nfsidl nfsio
76289 267796 0 0 3 0x14280 nfsidl nfsio
67299 137995 0 0 3 0x14280 nfsidl nfsio
59365 48904 0 0 3 0x14280 nfsidl nfsio
45397 439768 0 0 3 0x14280 nfsidl nfsio
44976 163892 0 0 3 0x14280 nfsidl nfsio
90893 72363 0 0 3 0x14280 nfsidl nfsio
59078 7381 0 0 3 0x14280 nfsidl nfsio
50316 355589 0 0 3 0x14280 nfsidl nfsio
3383 154511 0 0 3 0x14280 nfsidl nfsio
92435 315823 57914 0 3 0x82 nanoslp syz-executor
93516 393636 57914 0 3 0x82 nanoslp syz-executor
98173 399176 57914 0 3 0x82 nanoslp syz-executor
57435 445297 57914 0 3 0x82 nanoslp syz-executor
57914 481357 69501 0 3 0x82 kqread syz-executor
69501 169837 51894 0 3 0x10008a sigsusp ksh
51894 277498 2416 0 3 0x98 kqread sshd-session
2416 300200 72985 0 3 0x92 kqread sshd-session
72985 41019 1 0 3 0x88 kqread sshd
2284 450097 82576 74 3 0x1100092 bpf pflogd
82576 206736 1 0 3 0x80 sbwait pflogd
49065 336841 44496 73 3 0x1100090 kqread syslogd
44496 483015 1 0 3 0x100082 sbwait syslogd
42689 159641 1 0 3 0x100080 kqread resolvd
65187 323644 73385 77 3 0x100092 kqread dhcpleased
56098 517104 73385 77 3 0x100092 kqread dhcpleased
73385 392832 1 0 3 0x80 kqread dhcpleased
62633 129334 0 0 3 0x14200 bored smr
23928 266218 0 0 2 0x14200 zerothread
21532 365704 0 0 3 0x14200 aiodoned aiodoned
11773 177439 0 0 3 0x14200 syncer update
39782 523064 0 0 3 0x14200 cleaner cleaner
36359 163661 0 0 3 0x14200 reaper reaper
58587 155864 0 0 3 0x14200 pgdaemon pagedaemon
56036 208918 0 0 3 0x14200 bored viomb
85145 8554 0 0 3 0x40014200 acpi0 acpi0
50355 258202 0 0 7 0x40014200 idle1
88587 221768 0 0 3 0x14200 bored softnet1
85713 259385 0 0 3 0x14200 bored softnet0
44547 389444 0 0 3 0x14200 bored systqmp
36452 447473 0 0 3 0x14200 bored systq
32644 375826 0 0 3 0x14200 tmoslp softclockmp
72558 318831 0 0 3 0x40014200 tmoslp softclock
99177 298855 0 0 3 0x40014200 idle0
1 420413 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee30)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
#3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
#4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#4 dtclose+0x109 sys/dev/dt/dt_dev.c:239
#5 spec_close+0x466 sys/kern/spec_vnops.c:-1
#6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
#7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#8 fdrop+0x121 sys/kern/kern_descrip.c:1280
#9 closef+0x192 sys/kern/kern_descrip.c:1264
#10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#11 Xsyscall+0x128
Process 77058 (syz-executor) thread 0xffff8000fffe7a18 (414543)
exclusive rwlock dtlk r = 0 (0xffffffff8380bbc8)
#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 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:572
#3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#3 dtclose+0x109 sys/dev/dt/dt_dev.c:239
#4 spec_close+0x466 sys/kern/spec_vnops.c:-1
#5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
#6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#7 fdrop+0x121 sys/kern/kern_descrip.c:1280
#8 closef+0x192 sys/kern/kern_descrip.c:1264
#9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83903fc0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608
#2 fdrop+0x121 sys/kern/kern_descrip.c:1280
#3 closef+0x192 sys/kern/kern_descrip.c:1264
#4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#5 Xsyscall+0x128
exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee30)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
#3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
#4 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#4 dtclose+0x109 sys/dev/dt/dt_dev.c:239
#5 spec_close+0x466 sys/kern/spec_vnops.c:-1
#6 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
#7 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#7 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#8 fdrop+0x121 sys/kern/kern_descrip.c:1280
#9 closef+0x192 sys/kern/kern_descrip.c:1264
#10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#11 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11083 12153K 13158K 166960K 13753 0
pcb 20 16K 18K 166960K 506 0
rtable 228 10K 11K 166960K 661 0
pf 37 18K 82K 166960K 173 0
ifaddr 45 8K 8K 166960K 139 0
ifgroup 59 2K 2K 166960K 220 0
sysctl 4 1K 9K 166960K 15 0
counters 72 37K 38K 166960K 238 0
ioctlops 0 0K 4K 166960K 1946 0
iov 0 0K 24K 166960K 134 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1491 94K 94K 166960K 2685 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 9K 166960K 16 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 61 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 93K 166960K 1386 0
sigio 0 0K 0K 166960K 31 0
proc 74 115K 164K 166960K 800 0
subproc 72 4K 4K 166960K 119 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 140 0
in_multi 92 6K 7K 166960K 210 0
ether_multi 1 0K 0K 166960K 11 0
mrt 2 0K 0K 166960K 13 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 587 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 2 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 250 161K 175K 166960K 14499 0
UVM aobj 40 16K 16K 166960K 47 0
pinsyscall 43 86K 104K 166960K 2659 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 104 0
NDP 13 0K 1K 166960K 98 0
temp 78 8684K 8764K 166960K 61808 0
kqueue 13 20K 30K 166960K 278 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> 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 120 130 0 127 1 0 1 1 0 8 0
rtentry 176 196 0 104 6 1 5 6 0 8 0
unpcb 144 987 0 968 14 12 2 6 0 8 1
syncache 336 6 0 6 3 3 0 1 0 8 0
tcpcb 736 366 0 362 4 3 1 4 0 8 0
arp 136 30 0 12 1 0 1 1 0 8 0
inpcb 328 1616 0 1606 17 10 7 7 0 8 6
nd6 152 43 0 22 1 0 1 1 0 8 0
pkpcb 40 8 0 8 4 3 1 1 0 8 1
kcovpl 48 13 0 5 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 1 0 1 0 8 0
ppxss 1192 64 0 64 2 1 1 1 0 8 1
pppxif 1504 6 0 6 4 3 1 1 0 8 1
pfstscr 40 3 0 2 1 0 1 1 0 8 0
pffrag 232 13 0 3 2 1 1 1 0 482 0
pffrnode 88 13 0 3 2 1 1 1 0 8 0
pffrent 40 19 0 9 2 1 1 1 0 8 0
pfosfp 40 1429 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1429 0 714 21 0 21 21 0 8 0
pfrktable 1344 6 0 6 4 3 1 1 0 8 1
pfstitem 24 3 0 0 1 0 1 1 0 8 0
pfstkey 128 7 0 4 1 0 1 1 0 8 0
pfstate 448 4 0 2 1 0 1 1 0 8 0
rttmr 136 3 0 3 2 2 0 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 878 0 505 33 8 25 31 0 8 0
art_table 40 881 0 505 5 0 5 5 0 8 0
art_node 32 196 0 116 1 0 1 1 0 8 0
sysvmsgpl 40 85 0 74 2 1 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 54 0 44 1 0 1 1 0 8 0
shmpl 112 33 0 3 1 0 1 1 0 8 0
dirhash 1024 27 0 10 3 0 3 3 0 8 0
dino2pl 256 4008 0 2499 96 0 96 96 0 8 0
ffsino 296 4008 0 2499 118 1 117 118 0 8 0
nchpl 144 5890 0 4180 64 0 64 64 0 8 0
rtmask 32 14 0 14 3 2 1 1 0 8 1
vnodes 216 4846 0 0 270 0 270 270 0 8 0
namei 1024 20550 0 20550 3 2 1 2 0 8 1
percpumem 16 134 0 83 1 0 1 1 0 8 0
vcpupl 3968 7 0 0 1 0 1 1 0 8 0
vmpool 848 10 0 3 1 0 1 1 0 8 0
kstatmem 264 144 0 114 5 2 3 3 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 7 0 7 4 4 0 1 0 8 0
scxspl 216 35549 0 35549 11 8 3 8 1 8 3
plimitpl 152 462 0 444 1 0 1 1 0 8 0
sigapl 424 1712 0 1643 8 0 8 8 0 8 0
knotepl 120 744 0 0 23 0 23 23 0 8 0
kqueuepl 224 560 0 549 5 4 1 5 0 8 0
pipepl 344 235 0 208 3 0 3 3 0 8 0
fdescpl 528 1672 0 1640 3 0 3 3 0 8 0
filepl 160 10437 0 10214 21 8 13 18 0 8 0
lockfpl 104 521 0 519 2 1 1 2 0 8 0
lockfspl 48 204 0 202 1 0 1 1 0 8 0
sessionpl 144 31 0 22 1 0 1 1 0 8 0
pgrppl 48 55 0 38 1 0 1 1 0 8 0
ucredpl 104 1553 0 1539 1 0 1 1 0 8 0
zombiepl 144 2412 0 2411 2 1 1 1 0 8 0
processpl 1232 1712 0 1643 6 0 6 6 0 8 0
procpl 664 3913 0 3835 8 0 8 8 0 8 0
sosppl 176 10 0 10 2 1 1 1 0 8 1
sockpl 752 2784 0 2752 31 20 11 17 0 8 7
mcl64k 65536 12 0 0 2 0 2 2 0 8 0
mcl16k 16384 11 0 0 2 0 2 2 0 8 0
mcl12k 12288 4 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 118 0 0 15 0 15 15 0 8 0
mcl2k2 2112 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 23 0 0 3 0 3 3 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 1062 0 0 66 0 66 66 0 8 0
bufpl 280 14019 0 7883 439 0 439 439 0 8 0
anonpl 32 13741 0 0 111 0 111 111 0 246 0
amapchunkpl 152 48537 0 48025 44 18 26 34 0 158 4
amappl16 200 5345 0 5309 40 29 11 31 0 8 3
amappl15 192 3 0 3 1 1 0 1 0 8 0
amappl14 184 19 0 19 2 2 0 1 0 8 0
amappl13 176 494 0 493 1 0 1 1 0 8 0
amappl12 168 2079 0 2036 4 2 2 3 0 8 0
amappl11 160 21 0 21 2 2 0 1 0 8 0
amappl10 152 46 0 32 1 0 1 1 0 8 0
amappl9 144 253 0 253 1 1 0 1 0 8 0
amappl8 136 29 0 27 1 0 1 1 0 8 0
amappl7 128 99 0 98 1 0 1 1 0 8 0
amappl6 120 355 0 341 1 0 1 1 0 8 0
amappl5 112 76 0 65 1 0 1 1 0 8 0
amappl4 104 496 0 465 1 0 1 1 0 8 0
amappl3 96 8618 0 8518 4 1 3 3 0 8 0
amappl2 88 1796 0 1716 2 0 2 2 0 8 0
amappl1 80 15397 0 14804 16 2 14 14 0 8 0
amappl 88 13443 0 13273 5 0 5 5 0 92 0
uvmvnodes 80 165 0 0 4 0 4 4 0 8 0
dma65536 65536 3 0 3 2 2 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 2 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 19 0 18 1 0 1 1 0 8 0
aobjpl 72 46 0 7 1 0 1 1 0 8 0
uaddrrnd 24 1672 0 1640 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1672 0 1640 1 0 1 1 0 8 0
vmmpekpl 168 14491 0 14434 3 0 3 3 0 8 0
vmmpepl 168 112261 0 110275 118 16 102 112 0 357 6
vmsppl 488 1671 0 1640 6 1 5 5 0 8 0
rwobjpl 80 31805 0 30660 36 3 33 35 0 8 0
pdppl 4096 3371 0 3293 124 46 78 85 0 8 0
pvpl 32 23376 0 0 191 2 189 189 0 265 0
pmappl 256 1681 0 1643 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 369 0 68 9 0 9 9 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
witness_checkorder(ffffffff839d5cf0,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1
mtx_enter(ffffffff839d5ce0) at mtx_enter+0x95 sys/kern/kern_lock.c:406
sleep_setup(ffff8000299dee80,220,ffffffff83432cf3) at sleep_setup+0xed sys/kern/kern_synch.c:304
msleep_nsec(ffff8000299dee80,ffff8000299dee20,220,ffffffff83432cf3,ffffffffffffffff) at msleep_nsec+0x10b sys/kern/kern_synch.c:217
dt_ioctl_record_stop(ffff800001644000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(21e5f,81,2000,ffff8000fffe7a18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff8000fffe7a18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80003c4c4d00) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd800b957dc8,81,fffffd80097fd410,ffff8000fffe7a18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8064b22e60,ffff8000fffe7a18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8064b22e60,ffff8000fffe7a18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8064b22e60,ffff8000fffe7a18) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd8064b22e60,ffff8000fffe7a18) at closef+0x192 sys/kern/kern_descrip.c:1264
syscall(ffff80003c4c4f60) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4c4f60) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcc462a58e10, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) 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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc
clockintr_dispatch(ffff80002a21c770) at clockintr_dispatch+0x401 sys/kern/kern_clockintr.c:215
lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: -9