witness: thread 0xffff80002efce7e8 exiting with the following locks held:
shared rwlock netlock r = 0 (0xffffffff837f6530)
#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_read+0x36e sys/kern/kern_rwlock.c:397
#2 sysctl_file+0xb13 sys/kern/kern_sysctl.c:1767
#3 kern_sysctl+0x167 sys/kern/kern_sysctl.c:526
#4 sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1
#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
panic: thread 0xffff80002efce7e8 cannot exit while holding sleeplocks
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
353764 4794 0 0 0x4000000 0K syz-executor
* 66923 48027 0 0x14000 0x200 1 reaper
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8335036a) at panic+0x1e5 sys/kern/subr_prf.c:198
witness_thread_exit(ffff80002efce7e8) at witness_thread_exit+0x426 sys/kern/subr_witness.c:1408
reaper(ffff8000ffffd1f8) at reaper+0x1ba sys/kern/kern_exit.c:492
end trace frame: 0x0, count: 11
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: thread 0xffff80002efce7e8 cannot exit while holding sleeplocks
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8335036a) at panic+0x1e5 sys/kern/subr_prf.c:198
witness_thread_exit(ffff80002efce7e8) at witness_thread_exit+0x426 sys/kern/subr_witness.c:1408
reaper(ffff8000ffffd1f8) at reaper+0x1ba sys/kern/kern_exit.c:492
end trace frame: 0x0, count: -4
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a2403d0
rbx 0xffff8000299dedd7
rdx 0
rcx 0xffff8000ffffd1f8
rax 0xffff8000299ddff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x694d3b0ecb898d5b
r11 0x1808db8d50252a2e
r12 0xffff8000299debd8
r13 0
r14 0
r15 0x1
rip 0xffffffff810e70e5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a2403c0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{1}> show proc
PROC (reaper) tid=66923 pid=48027 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=4, usrpri=52, slppri=4, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffd488,0xffff8000ffffcce8
process=0xffff8000ffff7550 user=0xffff80002a23b000, vmspace=0xffffffff839706a0
estcpu=2, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
4783 320228 85398 0 2 0 syz-executor
4794 461416 10782 0 2 0 syz-executor
4794 353764 10782 0 7 0x4000000 syz-executor
82913 433806 56444 0 3 0x3000 suspend syz-executor
82913 124508 56444 0 2 0x4081000 syz-executor
48358 13523 298 0 3 0x3010 suspend syz-executor
48358 157253 298 0 2 0x4081010 syz-executor
48358 36006 298 0 2 0x4081010 syz-executor
36559 188567 68128 0 2 0 syz-executor
36559 163596 68128 0 3 0x4000080 fsleep syz-executor
36559 30042 68128 0 3 0x4000080 fsleep syz-executor
36559 209162 68128 0 3 0x4000080 fsleep syz-executor
36559 481923 68128 0 3 0x4000080 fsleep syz-executor
59886 507656 0 0 3 0x14200 acct acct
7358 338090 1 0 3 0x100083 ttyopn getty
53333 516456 0 0 3 0x14280 nfsidl nfsio
85344 202268 0 0 3 0x14280 nfsidl nfsio
46278 188935 0 0 3 0x14280 nfsidl nfsio
61124 408572 0 0 3 0x14280 nfsidl nfsio
33461 403408 0 0 3 0x14280 nfsidl nfsio
61791 507033 0 0 3 0x14280 nfsidl nfsio
95892 165570 0 0 3 0x14280 nfsidl nfsio
9101 175542 0 0 3 0x14280 nfsidl nfsio
58051 462181 0 0 3 0x14280 nfsidl nfsio
99856 87749 0 0 3 0x14280 nfsidl nfsio
58221 32194 0 0 3 0x14280 nfsidl nfsio
74912 112635 0 0 3 0x14280 nfsidl nfsio
16338 119993 0 0 3 0x14280 nfsidl nfsio
21783 281188 0 0 3 0x14280 nfsidl nfsio
32774 93838 0 0 3 0x14280 nfsidl nfsio
13355 17668 0 0 3 0x14280 nfsidl nfsio
91581 52581 0 0 3 0x14280 nfsidl nfsio
66022 306090 0 0 3 0x14280 nfsidl nfsio
39989 68773 0 0 3 0x14280 nfsidl nfsio
4404 448102 0 0 3 0x14280 nfsidl nfsio
72270 299195 0 0 3 0x14200 bored sosplice
68128 130628 62166 0 2 0xc82 syz-executor
98510 247285 62166 0 2 0xc82 syz-executor
85398 172676 62166 0 2 0xc82 syz-executor
298 494971 62166 0 2 0xc82 syz-executor
56444 249964 62166 0 2 0xc82 syz-executor
29153 135403 62166 0 2 0x2 syz-executor
10782 449681 62166 0 2 0xc82 syz-executor
55195 388514 62166 0 2 0xc82 syz-executor
62166 58033 76616 0 2 0x2 syz-executor
76616 38025 38964 0 3 0x10008a sigsusp ksh
38964 519282 56016 0 3 0x98 kqread sshd-session
56016 156870 83067 0 3 0x92 kqread sshd-session
83067 467218 1 0 3 0x88 kqread sshd
33701 372970 34350 74 3 0x1100092 bpf pflogd
34350 42383 1 0 3 0x80 sbwait pflogd
56458 501362 6424 73 2 0x1100090 syslogd
6424 318990 1 0 3 0x100082 sbwait syslogd
88902 439387 1 0 3 0x100080 kqread resolvd
40057 511061 31241 77 3 0x100092 kqread dhcpleased
5540 95158 31241 77 3 0x100092 kqread dhcpleased
31241 453250 1 0 3 0x80 kqread dhcpleased
74235 275865 0 0 3 0x14200 bored smr
37621 90006 0 0 3 0x14200 pgzero zerothread
49519 429239 0 0 3 0x14200 aiodoned aiodoned
73925 396110 0 0 3 0x14200 syncer update
22388 463484 0 0 3 0x14200 cleaner cleaner
*48027 66923 0 0 7 0x14200 reaper
24972 279841 0 0 3 0x14200 pgdaemon pagedaemon
51095 226637 0 0 3 0x14200 bored viomb
64079 6784 0 0 3 0x40014200 acpi0 acpi0
26518 363027 0 0 3 0x40014200 idle1
5409 406748 0 0 3 0x14200 bored softnet3
6288 141383 0 0 3 0x14200 bored softnet2
98783 219673 0 0 3 0x14200 bored softnet1
36255 203834 0 0 2 0x14200 softnet0
40611 301328 0 0 3 0x14200 bored systqmp
63683 103814 0 0 3 0x14200 bored systq
20952 215039 0 0 2 0x14200 softclockmp
31345 286369 0 0 3 0x40014200 netlock softclock
7560 120319 0 0 3 0x40014200 idle0
1 142363 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{1}> show all locks
Process 4794 (syz-executor) thread 0xffff80002efd79d0 (353764)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839201a8)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 doopenat+0x314 sys/kern/vfs_syscalls.c:1137
#2 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#2 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
#3 Xsyscall+0x128
Process 29153 (syz-executor) thread 0xffff80002a2739c0 (135403)
exclusive rrwlock inode r = 0 (0xfffffd806ab1ebe0)
#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:1201
#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 (0xfffffd806ab1e2e0)
#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
Process 36255 (softnet0) thread 0xffff8000ffffecd0 (203834)
shared rwlock softnet0 r = 0 (0xffff80000002c078)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
Process 20952 (softclockmp) thread 0xffff8000ffffe520 (215039)
shared rwlock timeout r = 0 (0xffffffff837df708)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 timeout_run+0x115 sys/kern/kern_timeout.c:690
#2 softclock_thread_run+0xec sys/kern/kern_timeout.c:838
#3 softclock_thread_mp+0x8f sys/kern/kern_timeout.c:873
#4 proc_trampoline+0x10
Process 31345 (softclock) thread 0xffff8000ffffe7b0 (286369)
shared rwlock timeout r = 0 (0xffffffff837df708)
#0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5bb sys/kern/subr_witness.c:1160
#1 timeout_run+0x115 sys/kern/kern_timeout.c:690
#2 softclock_thread_run+0xec sys/kern/kern_timeout.c:838
#3 softclock_thread+0x10a sys/kern/kern_timeout.c:854
#4 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10233 11050K 12022K 166960K 14175 0
pcb 18 16K 18K 166960K 330 0
rtable 261 10K 11K 166960K 521 0
pf 38 18K 20K 166960K 142 0
ifaddr 47 8K 9K 166960K 102 0
ifgroup 60 2K 3K 166960K 184 0
sysctl 3 1K 9K 166960K 9 0
counters 70 37K 37K 166960K 184 0
ioctlops 0 0K 4K 166960K 1769 0
iov 0 0K 16K 166960K 49 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1591 100K 100K 166960K 3097 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 17 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 48 0
dirhash 12 2K 2K 166960K 30 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 85K 166960K 1301 0
sigio 0 0K 0K 166960K 23 0
proc 73 91K 115K 166960K 665 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 0 0K 0K 166960K 219 0
in_multi 105 7K 7K 166960K 161 0
ether_multi 1 0K 0K 166960K 10 0
mrt 2 0K 0K 166960K 6 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 515 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 255 152K 174K 166960K 13788 0
UVM aobj 23 2K 2K 166960K 25 0
pinsyscall 42 84K 101K 166960K 2415 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 54 0
NDP 13 0K 1K 166960K 66 0
temp 81 8696K 8810K 166960K 37796 0
kqueue 13 20K 28K 166960K 227 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 120 140 0 137 2 1 1 2 0 8 0
rtentry 176 160 0 44 6 0 6 6 0 8 0
unpcb 144 1717 0 1691 7 6 1 4 0 8 0
syncache 336 6 0 6 2 2 0 1 0 8 0
tcpqe 32 2 0 2 1 1 0 1 0 8 0
tcpcb 808 523 0 515 16 11 5 8 0 8 3
arp 128 23 0 3 1 0 1 1 0 8 0
inpcb 328 1563 0 1552 18 13 5 7 0 8 3
nd6 144 42 0 7 2 0 2 2 0 8 0
pkpcb 40 7 0 7 2 2 0 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 38 0 38 1 1 0 1 0 8 0
pppxif 1504 10 0 10 2 2 0 1 0 8 0
pffrag 232 10 0 3 1 0 1 1 0 482 0
pffrnode 88 10 0 3 1 0 1 1 0 8 0
pffrent 40 22 0 14 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
pfstitem 24 98 0 31 1 0 1 1 0 8 0
pfstkey 128 98 0 31 3 0 3 3 0 8 0
pfstate 384 98 0 31 7 0 7 7 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 747 0 187 36 1 35 35 0 8 0
art_table 32 750 0 187 5 0 5 5 0 8 0
art_node 16 155 0 52 1 0 1 1 0 8 0
sysvmsgpl 40 18 0 10 1 0 1 1 0 8 0
semupl 112 2 0 2 2 2 0 1 0 8 0
semapl 112 46 0 36 1 0 1 1 0 8 0
shmpl 112 22 0 2 1 0 1 1 0 8 0
dirhash 1024 29 0 12 3 0 3 3 0 8 0
dino2pl 256 3857 0 2348 95 0 95 95 0 8 0
ffsino 288 3857 0 2348 109 0 109 109 0 8 0
nchpl 144 5741 0 4046 65 1 64 64 0 8 0
rtmask 32 6 0 6 2 2 0 1 0 8 0
uvmvnodes 80 5125 0 0 105 0 105 105 0 8 0
vnodes 216 5125 0 0 285 0 285 285 0 8 0
namei 1024 20749 0 20749 2 1 1 1 0 8 1
percpumem 16 107 0 57 1 0 1 1 0 8 0
kstatmem 264 98 0 70 5 3 2 3 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 20861 0 20861 12 11 1 8 1 8 1
plimitpl 152 226 0 208 1 0 1 1 0 8 0
sigapl 424 1631 0 1560 11 2 9 9 0 8 0
knotepl 120 473 0 0 16 1 15 16 0 8 0
kqueuepl 224 456 0 446 4 3 1 3 0 8 0
pipepl 336 281 0 254 8 5 3 8 0 8 0
fdescpl 520 1590 0 1559 3 0 3 3 0 8 0
filepl 160 12635 0 12406 25 12 13 18 0 8 2
lockfpl 104 652 0 650 2 1 1 2 0 8 0
lockfspl 48 192 0 190 1 0 1 1 0 8 0
sessionpl 144 27 0 18 1 0 1 1 0 8 0
pgrppl 48 47 0 30 1 0 1 1 0 8 0
ucredpl 104 2038 0 2023 1 0 1 1 0 8 0
zombiepl 144 1564 0 1560 1 0 1 1 0 8 0
processpl 1240 1631 0 1560 6 0 6 6 0 8 0
procpl 656 3728 0 3648 9 1 8 8 0 8 0
srpgc 96 2 0 2 1 1 0 1 0 8 0
sosppl 168 4 0 4 2 2 0 1 0 8 0
sockpl 728 3470 0 3421 27 19 8 16 0 8 3
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 6 0 0 1 0 1 1 0 8 0
mcl4k 4096 117 0 0 15 0 15 15 0 8 0
mcl2k 2048 24 0 0 3 0 3 3 0 8 0
mtagpl 96 101 0 0 3 0 3 3 0 8 0
mbufpl 256 309 0 0 19 0 19 19 0 8 0
bufpl 280 6424 0 282 439 0 439 439 0 8 0
anonpl 32 11210 0 0 91 0 91 91 0 246 0
amapchunkpl 152 46224 0 45624 35 10 25 34 0 158 0
amappl16 200 4123 0 3859 43 29 14 23 0 8 0
amappl15 192 5 0 4 1 0 1 1 0 8 0
amappl14 184 121 0 109 1 0 1 1 0 8 0
amappl13 176 5 0 5 1 1 0 1 0 8 0
amappl12 168 2297 0 2267 3 1 2 2 0 8 0
amappl11 160 49 0 35 1 0 1 1 0 8 0
amappl10 152 27 0 26 2 1 1 1 0 8 0
amappl9 144 257 0 257 1 1 0 1 0 8 0
amappl8 136 23 0 20 1 0 1 1 0 8 0
amappl7 128 111 0 99 1 0 1 1 0 8 0
amappl6 120 199 0 194 1 0 1 1 0 8 0
amappl5 112 125 0 115 1 0 1 1 0 8 0
amappl4 104 333 0 313 1 0 1 1 0 8 0
amappl3 96 9278 0 9161 4 0 4 4 0 8 0
amappl2 88 670 0 609 2 0 2 2 0 8 0
amappl1 80 13710 0 13095 16 1 15 15 0 8 0
amappl 88 12881 0 12698 5 0 5 5 0 92 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 24 0 2 1 0 1 1 0 8 0
uaddrrnd 24 1590 0 1559 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1590 0 1559 1 0 1 1 0 8 0
vmmpekpl 168 14673 0 14628 4 1 3 3 0 8 0
vmmpepl 168 104587 0 102316 118 19 99 108 0 357 0
vmsppl 480 1589 0 1559 6 2 4 5 0 8 0
rwobjpl 72 32719 0 26362 116 0 116 116 0 8 0
pdppl 4096 3187 0 3118 105 34 71 81 0 8 2
pvpl 32 19675 0 0 160 1 159 159 0 265 0
pmappl 256 1589 0 1559 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 425 0 56 11 0 11 11 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff838b9ff0) 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
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666
acpitimer_delay(3e8) at acpitimer_delay+0x175 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline]
acpitimer_delay(3e8) at acpitimer_delay+0x175 sys/dev/acpi/acpitimer.c:125
pckbc_poll_cmd1(ffff800000af2200,0,ffff8000353f5b00) at pckbc_poll_cmd1+0x351 pckbc_poll_data1 sys/dev/ic/pckbc.c:148 [inline]
pckbc_poll_cmd1(ffff800000af2200,0,ffff8000353f5b00) at pckbc_poll_cmd1+0x351 sys/dev/ic/pckbc.c:620
pckbc_poll_cmd(ffff800000af2200,0,ffff8000353f5bbf,1,0,0,a7b974a9b87e691d) at pckbc_poll_cmd+0x12a sys/dev/ic/pckbc.c:692
pckbd_enable(ffff80000006ba00,1) at pckbd_enable+0x107 sys/dev/pckbc/pckbd.c:502
wskbd_do_open(ffff800000afa000,ffff800000afa050) at wskbd_do_open+0xf5 wskbd_enable sys/dev/wscons/wskbd.c:814 [inline]
wskbd_do_open(ffff800000afa000,ffff800000afa050) at wskbd_do_open+0xf5 sys/dev/wscons/wskbd.c:890
wskbdopen(4300,8001,2000,ffff80002efd79d0) at wskbdopen+0x1d2 sys/dev/wscons/wskbd.c:872
spec_open(ffff8000353f5d08) at spec_open+0x2ec sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806e0a90e8,8001,fffffd80097fb5b0,ffff80002efd79d0) at VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
vn_open(ffff8000353f5f58,8001,0) at vn_open+0x708 sys/kern/vfs_vnops.c:177
doopenat(ffff80002efd79d0,ffffff9c,200000000000,8000,0,ffff8000353f6100) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137
end trace frame: 0xffff8000353f61a0, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff838b9ff0) 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
x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666
acpitimer_delay(3e8) at acpitimer_delay+0x175 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline]
acpitimer_delay(3e8) at acpitimer_delay+0x175 sys/dev/acpi/acpitimer.c:125
pckbc_poll_cmd1(ffff800000af2200,0,ffff8000353f5b00) at pckbc_poll_cmd1+0x351 pckbc_poll_data1 sys/dev/ic/pckbc.c:148 [inline]
pckbc_poll_cmd1(ffff800000af2200,0,ffff8000353f5b00) at pckbc_poll_cmd1+0x351 sys/dev/ic/pckbc.c:620
pckbc_poll_cmd(ffff800000af2200,0,ffff8000353f5bbf,1,0,0,a7b974a9b87e691d) at pckbc_poll_cmd+0x12a sys/dev/ic/pckbc.c:692
pckbd_enable(ffff80000006ba00,1) at pckbd_enable+0x107 sys/dev/pckbc/pckbd.c:502
wskbd_do_open(ffff800000afa000,ffff800000afa050) at wskbd_do_open+0xf5 wskbd_enable sys/dev/wscons/wskbd.c:814 [inline]
wskbd_do_open(ffff800000afa000,ffff800000afa050) at wskbd_do_open+0xf5 sys/dev/wscons/wskbd.c:890
wskbdopen(4300,8001,2000,ffff80002efd79d0) at wskbdopen+0x1d2 sys/dev/wscons/wskbd.c:872
spec_open(ffff8000353f5d08) at spec_open+0x2ec sys/kern/spec_vnops.c:150
VOP_OPEN(fffffd806e0a90e8,8001,fffffd80097fb5b0,ffff80002efd79d0) at VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
vn_open(ffff8000353f5f58,8001,0) at vn_open+0x708 sys/kern/vfs_vnops.c:177
doopenat(ffff80002efd79d0,ffffff9c,200000000000,8000,0,ffff8000353f6100) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137
syscall(ffff8000353f61b0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000353f61b0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc4959a20d10, count: -16
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x25: addq $0x8,%rsp
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8335036a) at panic+0x1e5 sys/kern/subr_prf.c:198
witness_thread_exit(ffff80002efce7e8) at witness_thread_exit+0x426 sys/kern/subr_witness.c:1408
reaper(ffff8000ffffd1f8) at reaper+0x1ba sys/kern/kern_exit.c:492
end trace frame: 0x0, count: 11
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8335036a) at panic+0x1e5 sys/kern/subr_prf.c:198
witness_thread_exit(ffff80002efce7e8) at witness_thread_exit+0x426 sys/kern/subr_witness.c:1408
reaper(ffff8000ffffd1f8) at reaper+0x1ba sys/kern/kern_exit.c:492
end trace frame: 0x0, count: -4