witness: lock order reversal:
1st 0xffff8000299dee00 &cq->cq_mtx (&cq->cq_mtx)
2nd 0xffffffff83944b58 &sched_lock (&sched_lock)
lock order [1] &cq->cq_mtx (&cq->cq_mtx) -> [2] &sched_lock (&sched_lock)
#0 mtx_enter+0x4a sys/kern/kern_lock.c:257
#1 sleep_setup+0xc6 sys/kern/kern_synch.c:302
#2 msleep_nsec+0x119 sys/kern/kern_synch.c:217
#3 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
#4 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#4 dtclose+0x105 sys/dev/dt/dt_dev.c:232
#5 spec_close+0x45f sys/kern/spec_vnops.c:-1
#6 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267
#9 closef+0x192 sys/kern/kern_descrip.c:1251
#10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#11 Xsyscall+0x128
lock order [2] &sched_lock (&sched_lock) -> [1] &cq->cq_mtx (&cq->cq_mtx)
#0 mtx_enter+0x4a sys/kern/kern_lock.c:257
#1 clockintr_cancel+0x2f sys/kern/kern_clockintr.c:323
#2 mi_switch+0x172 x86_atomic_clearbits_u32 machine/atomic.h:-1 [inline]
#2 mi_switch+0x172 sys/kern/sched_bsd.c:374
#3 sleep_finish+0x2da sys/kern/kern_synch.c:366
#4 sys_futex+0xa24 futex_wait sys/kern/sys_futex.c:301 [inline]
#4 sys_futex+0xa24 sys/kern/sys_futex.c:151
#5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#6 Xsyscall+0x128
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(ffffffff83944b58,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
mtx_enter(ffffffff83944b48) at mtx_enter+0x4a sys/kern/kern_lock.c:257
sleep_setup(ffff8000299dee50,220,ffffffff833af742) at sleep_setup+0xc6 sys/kern/kern_synch.c:302
msleep_nsec(ffff8000299dee50,ffff8000299dedf0,220,ffffffff833af742,ffffffffffffffff) at msleep_nsec+0x119 sys/kern/kern_synch.c:217
dt_ioctl_record_stop(ffff80000149a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
dtclose(11e5f,81,2000,ffff8000fffe82b8) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff8000fffe82b8) at dtclose+0x105 sys/dev/dt/dt_dev.c:232
spec_close(ffff80002a3060e0) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805e2506d8,81,fffffd80097fb2d8,ffff8000fffe82b8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805cc3a088,ffff8000fffe82b8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805cc3a088,ffff8000fffe82b8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805cc3a088,ffff8000fffe82b8) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd805cc3a088,ffff8000fffe82b8) at closef+0x192 sys/kern/kern_descrip.c:1251
syscall(ffff80002a306340) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a306340) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa0c37359210, count: -14
ddb{0}> show registers
rdi 0
rsi 0x80000 acpi_pdirpa+0x6be71
rbp 0xffff80002a305de0
rbx 0xfffffd8004702330
rdx 0xffff80000147fa40
rcx 0xffff8000fffe82b8
rax 0x7ffff acpi_pdirpa+0x6be70
r8 0xffff80002a305cc0
r9 0x8080808080808080
r10 0x930f9eca61f48d02
r11 0x73b9fbab8b54bf2
r12 0
r13 0xfffffd8003f55300
r14 0x3
r15 0xffffffff
rip 0xffffffff8232ace5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a305dd0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=245065 pid=28672 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a285728,0xffff8000ffffca58
process=0xffff8000fffdd868 user=0xffff80002a301000, vmspace=0xfffffd806d472d30
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
64247 263409 14942 -1 2 0x10 syz-executor
64247 440013 14942 -1 3 0x4000090 sbwait syz-executor
14559 100993 80652 -1 3 0x90 nanoslp syz-executor
14559 212186 80652 -1 3 0x4000090 fsleep syz-executor
32243 491070 47349 0 2 0 syz-executor
32243 7983 47349 0 3 0x4000080 kqread syz-executor
32243 99729 47349 0 3 0x4000080 fsleep syz-executor
28672 114196 49353 0 2 0 syz-executor
*28672 245065 49353 0 7 0x4000000 syz-executor
46838 447177 13472 -1 3 0x90 nanoslp syz-executor
46838 503710 13472 -1 3 0x4000090 kqsel syz-executor
46838 233140 13472 -1 3 0x4000090 fsleep syz-executor
38427 441038 81271 0 3 0x80 nanoslp syz-executor
38427 513948 81271 0 3 0x4000080 ttyin syz-executor
38427 228336 81271 0 3 0x4000080 fsleep syz-executor
38427 22366 81271 0 3 0x4000080 fsleep syz-executor
42210 408391 63339 0 3 0x80 nanoslp syz-executor
42210 433248 63339 0 3 0x4000080 kqsel syz-executor
42210 221878 63339 0 3 0x4000080 fsleep syz-executor
47873 387135 0 0 3 0x14200 acct acct
47349 430007 47724 0 3 0x82 nanoslp syz-executor
80328 311698 47724 0 3 0x2 biowait syz-executor
84052 210966 1 0 3 0x100083 ttyin getty
14942 130870 47724 0 3 0x82 nanoslp syz-executor
36863 377711 0 0 3 0x14200 bored sosplice
49353 32163 47724 0 3 0x82 nanoslp syz-executor
13472 256470 47724 0 3 0x82 nanoslp syz-executor
63339 489368 47724 0 3 0x82 nanoslp syz-executor
80652 499398 47724 0 3 0x82 nanoslp syz-executor
81271 51113 47724 0 3 0x82 nanoslp syz-executor
47724 210534 36594 0 3 0x82 kqread syz-executor
36594 194588 13379 0 3 0x10008a sigsusp ksh
13379 196769 38301 0 3 0x98 kqread sshd-session
38301 345864 88184 0 3 0x92 kqread sshd-session
88184 134643 1 0 3 0x88 kqread sshd
54488 277307 56327 74 3 0x1100092 bpf pflogd
56327 306007 1 0 3 0x80 sbwait pflogd
70228 37148 87168 73 3 0x1100090 kqread syslogd
87168 109600 1 0 3 0x100082 sbwait syslogd
71943 354864 1 0 3 0x100080 kqread resolvd
91744 363224 6620 77 3 0x100092 kqread dhcpleased
33129 415894 6620 77 3 0x100092 kqread dhcpleased
6620 118281 1 0 3 0x80 kqread dhcpleased
53721 117493 0 0 3 0x14200 bored smr
55804 419168 0 0 2 0x14200 zerothread
94680 38423 0 0 3 0x14200 aiodoned aiodoned
25912 421113 0 0 3 0x14200 syncer update
70619 368150 0 0 3 0x14200 cleaner cleaner
42569 478395 0 0 3 0x14200 reaper reaper
38832 320776 0 0 3 0x14200 pgdaemon pagedaemon
24296 514891 0 0 3 0x14200 bored viomb
55645 201765 0 0 3 0x40014200 acpi0 acpi0
80621 246109 0 0 7 0x40014200 idle1
74582 134857 0 0 3 0x14200 bored softnet3
3487 179295 0 0 3 0x14200 bored softnet2
6666 76195 0 0 3 0x14200 bored softnet1
87737 298238 0 0 3 0x14200 bored softnet0
95559 326604 0 0 3 0x14200 bored systqmp
50150 450937 0 0 3 0x14200 bored systq
40957 500059 0 0 3 0x14200 tmoslp softclockmp
83216 229223 0 0 3 0x40014200 tmoslp softclock
27380 211635 0 0 3 0x40014200 idle0
1 308654 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 (0xffff8000299dee00)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:301
#2 mtx_enter+0x62 sys/kern/kern_lock.c:258
#3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
#4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
#5 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#5 dtclose+0x105 sys/dev/dt/dt_dev.c:232
#6 spec_close+0x45f sys/kern/spec_vnops.c:-1
#7 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
#8 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#8 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#9 fdrop+0x126 sys/kern/kern_descrip.c:1267
#10 closef+0x192 sys/kern/kern_descrip.c:1251
#11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#12 Xsyscall+0x128
Process 28672 (syz-executor) thread 0xffff8000fffe82b8 (245065)
exclusive rwlock dtlk r = 0 (0xffffffff83854ba8)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2 dt_ioctl_record_stop+0x68 sys/dev/dt/dt_dev.c:-1
#3 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#3 dtclose+0x105 sys/dev/dt/dt_dev.c:232
#4 spec_close+0x45f sys/kern/spec_vnops.c:-1
#5 VOP_CLOSE+0x133 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+0x126 sys/kern/kern_descrip.c:1267
#8 closef+0x192 sys/kern/kern_descrip.c:1251
#9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83976530)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608
#2 fdrop+0x126 sys/kern/kern_descrip.c:1267
#3 closef+0x192 sys/kern/kern_descrip.c:1251
#4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#5 Xsyscall+0x128
exclusive mutex &cq->cq_mtx r = 0 (0xffff8000299dee00)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 mtx_enter_try+0x1ad sys/kern/kern_lock.c:301
#2 mtx_enter+0x62 sys/kern/kern_lock.c:258
#3 clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
#4 dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
#5 dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#5 dtclose+0x105 sys/dev/dt/dt_dev.c:232
#6 spec_close+0x45f sys/kern/spec_vnops.c:-1
#7 VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
#8 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#8 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#9 fdrop+0x126 sys/kern/kern_descrip.c:1267
#10 closef+0x192 sys/kern/kern_descrip.c:1251
#11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#12 Xsyscall+0x128
Process 80328 (syz-executor) thread 0xffff80003c410f98 (311698)
exclusive rrwlock inode r = 0 (0xfffffd806e389538)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vget+0x2bd sys/kern/vfs_subr.c:693
#6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864
#13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806c57f200)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570
#5 vget+0x2bd sys/kern/vfs_subr.c:693
#6 cache_lookup+0x36e sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x21b sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#10 namei+0x7aa sys/kern/vfs_lookup.c:250
#11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1864
#12 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579
#13 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10252 11061K 11473K 166960K 13445 0
pcb 18 16K 18K 166960K 741 0
rtable 243 12K 12K 166960K 800 0
pf 40 18K 67485K 166960K 256 0
ifaddr 45 8K 9K 166960K 175 0
ifgroup 64 2K 3K 166960K 313 0
sysctl 4 1K 9K 166960K 43 0
counters 72 37K 38K 166960K 418 0
ioctlops 0 0K 4K 166960K 2015 0
iov 0 0K 32K 166960K 173 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1512 95K 96K 166960K 3549 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 28K 36K 166960K 45 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 163 0
dirhash 12 2K 3K 166960K 78 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 257K 166960K 2786 0
sigio 0 0K 0K 166960K 83 0
proc 76 115K 128K 166960K 908 0
subproc 72 4K 4K 166960K 101 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 416 0
in_multi 96 6K 7K 166960K 273 0
ether_multi 1 0K 0K 166960K 32 0
mrt 3 0K 0K 166960K 22 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 265 1182K 1182K 166960K 265 0
exec 0 0K 1K 166960K 819 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 7 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 256 168K 189K 166960K 26638 0
UVM aobj 41 5K 5K 166960K 44 0
pinsyscall 42 84K 102K 166960K 4014 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 151 0
NDP 14 0K 2K 166960K 116 0
temp 82 8696K 8952K 166960K 143185 0
kqueue 14 22K 32K 166960K 488 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 120 392 0 389 5 4 1 3 0 8 0
rtentry 176 229 0 127 6 0 6 6 0 8 0
unpcb 144 2106 0 2081 20 19 1 4 0 8 0
syncache 336 24 0 24 7 7 0 1 0 8 0
tcpqe 32 11 0 11 6 6 0 1 0 8 0
tcpcb 736 1229 0 1223 22 18 4 7 0 8 2
arp 128 34 0 13 1 0 1 1 0 8 0
inpcb 328 3745 0 3732 34 27 7 10 0 8 3
nd6 144 39 0 13 2 1 1 2 0 8 0
pkpcb 40 39 0 39 6 5 1 1 0 8 1
kcovpl 48 11 0 3 1 0 1 1 0 8 0
mppekey 1024 4 0 4 3 3 0 1 0 8 0
ppxss 1192 139 0 139 4 3 1 1 0 8 1
pppxif 1504 54 0 54 7 6 1 1 0 8 1
pfstscr 40 1 0 0 1 0 1 1 0 8 0
pffrag 232 23 0 16 1 0 1 1 0 482 0
pffrnode 88 22 0 15 1 0 1 1 0 8 0
pffrent 40 41 0 34 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
pfanchor 1288 4 0 2 1 0 1 1 0 8 0
pftag 88 3 0 0 1 0 1 1 0 8 0
pfstitem 24 220 0 105 1 0 1 1 0 8 0
pfstkey 128 220 0 105 5 0 5 5 0 8 0
pfstate 384 219 0 105 13 0 13 13 0 8 0
pfrule 1344 31 0 23 2 1 1 2 0 8 0
rttmr 136 7 0 7 5 5 0 1 0 8 0
art_heap8 4096 4 0 0 4 0 4 4 0 8 0
art_heap4 256 972 0 537 33 4 29 31 0 8 0
art_table 32 976 0 537 4 0 4 4 0 8 0
art_node 16 214 0 126 1 0 1 1 0 8 0
sysvmsgpl 40 20 0 14 1 0 1 1 0 8 0
semapl 112 152 0 142 1 0 1 1 0 8 0
shmpl 112 41 0 3 2 0 2 2 0 8 0
dirhash 1024 62 0 45 3 0 3 3 0 8 0
dino2pl 256 6937 0 5428 96 0 96 96 0 8 0
ffsino 288 6937 0 5428 109 0 109 109 0 8 0
nchpl 144 10824 0 9117 64 0 64 64 0 8 0
rtmask 32 19 0 19 6 5 1 1 0 8 1
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 39882 0 39882 3 2 1 1 0 8 1
percpumem 16 224 0 173 1 0 1 1 0 8 0
kstatmem 264 192 0 160 3 0 3 3 0 8 0
acpiwqpl 32 4 0 4 1 0 1 1 1 8 1
scsiplug 72 9 0 9 5 5 0 1 0 8 0
scxspl 216 50553 0 50552 18 17 1 8 1 8 0
plimitpl 152 639 0 620 1 0 1 1 0 8 0
sigapl 424 3101 0 3050 10 2 8 9 0 8 0
knotepl 120 620 0 0 18 0 18 18 0 8 0
kqueuepl 224 1024 0 1012 11 9 2 5 0 8 1
pipepl 336 442 0 415 5 0 5 5 0 8 2
fdescpl 520 3054 0 3023 3 0 3 3 0 8 0
filepl 160 23665 0 23432 46 32 14 20 0 8 2
lockfpl 104 1117 0 1115 3 2 1 2 0 8 0
lockfspl 48 444 0 442 1 0 1 1 0 8 0
sessionpl 144 43 0 34 1 0 1 1 0 8 0
pgrppl 48 161 0 144 1 0 1 1 0 8 0
ucredpl 104 4217 0 4200 1 0 1 1 0 8 0
zombiepl 144 3050 0 3050 3 2 1 1 0 8 1
processpl 1240 3101 0 3050 7 1 6 6 0 8 0
procpl 656 7399 0 7336 8 2 6 8 0 8 0
srpgc 96 8 0 8 3 3 0 1 0 8 0
sosppl 168 8 0 8 6 6 0 1 0 8 0
sockpl 728 6374 0 6333 57 48 9 19 0 8 2
mcl64k 65536 7 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 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 122 0 0 15 0 15 15 0 8 0
mcl2k 2048 34 0 0 4 0 4 4 0 8 0
mtagpl 96 26 0 0 1 0 1 1 0 8 0
mbufpl 256 297 0 0 17 0 17 17 0 8 0
bufpl 280 19579 0 13437 439 0 439 439 0 8 0
anonpl 32 14984 0 0 122 1 121 121 0 246 0
amapchunkpl 152 104117 0 103458 83 52 31 51 0 158 3
amappl16 200 9178 0 9057 86 67 19 32 0 8 6
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 154 0 142 1 0 1 1 0 8 0
amappl13 176 8 0 8 1 1 0 1 0 8 0
amappl12 168 3762 0 3731 3 1 2 2 0 8 0
amappl11 160 94 0 79 1 0 1 1 0 8 0
amappl10 152 15 0 14 2 1 1 1 0 8 0
amappl9 144 247 0 245 1 0 1 1 0 8 0
amappl8 136 34 0 31 1 0 1 1 0 8 0
amappl7 128 140 0 127 1 0 1 1 0 8 0
amappl6 120 250 0 245 1 0 1 1 0 8 0
amappl5 112 156 0 146 1 0 1 1 0 8 0
amappl4 104 411 0 391 1 0 1 1 0 8 0
amappl3 96 18998 0 18882 5 1 4 4 0 8 0
amappl2 88 827 0 764 2 0 2 2 0 8 0
amappl1 80 22806 0 22203 16 1 15 15 0 8 0
amappl 88 25329 0 25146 5 0 5 5 0 92 0
dma65536 65536 2 0 2 1 1 0 1 0 8 0
dma32768 32768 1 0 1 1 0 1 1 0 8 1
dma4096 4096 2 0 2 2 2 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 10 0 10 3 3 0 1 0 8 0
dma128 128 257 0 257 5 5 0 1 0 8 0
dma64 64 7 0 7 2 2 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 22 0 21 1 0 1 1 0 8 0
aobjpl 72 43 0 3 1 0 1 1 0 8 0
uaddrrnd 24 3054 0 3023 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3054 0 3023 1 0 1 1 0 8 0
vmmpekpl 168 24086 0 24032 3 0 3 3 0 8 0
vmmpepl 168 197517 0 195397 145 41 104 115 0 357 2
vmsppl 480 3053 0 3023 7 2 5 5 0 8 0
rwobjpl 72 56420 0 49400 138 3 135 135 0 8 0
pdppl 4096 6115 0 6046 149 78 71 83 0 8 2
pvpl 32 21818 0 0 178 2 176 176 0 265 0
pmappl 256 3053 0 3023 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 484 0 118 11 0 11 11 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(ffffffff83944b58,9,0) at witness_checkorder+0x10fb sys/kern/subr_witness.c:-1
mtx_enter(ffffffff83944b48) at mtx_enter+0x4a sys/kern/kern_lock.c:257
sleep_setup(ffff8000299dee50,220,ffffffff833af742) at sleep_setup+0xc6 sys/kern/kern_synch.c:302
msleep_nsec(ffff8000299dee50,ffff8000299dedf0,220,ffffffff833af742,ffffffffffffffff) at msleep_nsec+0x119 sys/kern/kern_synch.c:217
dt_ioctl_record_stop(ffff80000149a000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:576
dtclose(11e5f,81,2000,ffff8000fffe82b8) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff8000fffe82b8) at dtclose+0x105 sys/dev/dt/dt_dev.c:232
spec_close(ffff80002a3060e0) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805e2506d8,81,fffffd80097fb2d8,ffff8000fffe82b8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
vn_closefile(fffffd805cc3a088,ffff8000fffe82b8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd805cc3a088,ffff8000fffe82b8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd805cc3a088,ffff8000fffe82b8) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd805cc3a088,ffff8000fffe82b8) at closef+0x192 sys/kern/kern_descrip.c:1251
syscall(ffff80002a306340) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a306340) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa0c37359210, 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+0x1a kd_curproc sys/dev/kcov.c:580 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x1a sys/dev/kcov.c:153
mtx_enter(ffff8000299dedf0) at mtx_enter+0xf5 sys/kern/kern_lock.c:261
clockintr_dispatch(ffff80002a228cd0) at clockintr_dispatch+0x3b4 sys/kern/kern_clockintr.c:215
lapic_clockintr(0,0) at lapic_clockintr+0x51 sys/arch/amd64/amd64/lapic.c:489
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218
sched_idle(ffff8000299ddff0) at sched_idle+0x4d8 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: -10