kernel: protection fault trap, code=0
Stopped at done_flush+0x38: movl %eax,%dr6
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
end trace frame: 0x0, count: -1
ddb> show registers
rdi 0x6c14 __ALIGN_SIZE+0x5c14
rsi 0xffff80002a524a60
rbp 0
rbx 0x756e6547
rdx 0x49656e69
rcx 0x6c65746e
rax 0x1000000000
r8 0
r9 0x10000 __ALIGN_SIZE+0xf000
r10 0
r11 0
r12 0
r13 0
r14 0
r15 0
rip 0xffffffff82a9c08b done_flush+0x38
cs 0x8
rflags 0x10046 __ALIGN_SIZE+0xf046
rsp 0xffff8000376775c8
ss 0x10
done_flush+0x38: movl %eax,%dr6
ddb> show proc
PROC (syz-executor) tid=255847 pid=46684 tcnt=3 stat=onproc
flags process=8000000<PIN> proc=4000000<THREAD>
runpri=32, usrpri=84, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a4a2a38,0xffff80002a4a2cd0
process=0xffff8000327f4cf0 user=0xffff800037672000, vmspace=0xfffffd80623dc170
estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
91637 103951 87802 0 2 0x8000000 syz-executor
91637 325880 87802 0 3 0xc000080 lockf syz-executor
91637 45352 87802 0 2 0xc000000 syz-executor
51683 497543 13124 0 2 0x8000000 syz-executor
51683 216436 13124 0 3 0xc000080 netacc syz-executor
51683 299324 13124 0 3 0xc000080 fsleep syz-executor
42515 102196 11735 0 2 0x8082000 syz-executor
42515 80370 11735 0 3 0xc002000 suspend syz-executor
43398 11177 97284 0 2 0x8000000 syz-executor
43398 98955 97284 0 3 0xc000080 fsleep syz-executor
47683 331189 82953 0 2 0x8000010 syz-executor
47683 350114 82953 0 3 0xc000090 kqread syz-executor
47683 204960 82953 0 2 0xc000010 syz-executor
46684 425454 38530 0 2 0x8000000 syz-executor
*46684 255847 38530 0 7 0xc000000 syz-executor
46684 307974 38530 0 3 0xc000080 lockf syz-executor
10455 184992 38082 0 3 0x8000080 nanoslp syz-executor
10455 122441 38082 0 3 0xc000080 lockf syz-executor
10455 134454 38082 0 3 0xc000080 fsleep syz-executor
61957 416691 16867 0 3 0x8000080 nanoslp syz-executor
61957 305129 16867 0 3 0xc000080 fsleep syz-executor
61957 283693 16867 0 3 0xc000080 ttyin syz-executor
16867 266393 61888 0 3 0x8000082 nanoslp syz-executor
97284 305825 61888 0 3 0x8000082 nanoslp syz-executor
82953 477461 61888 0 3 0x8000082 nanoslp syz-executor
38530 204925 61888 0 3 0x8000082 nanoslp syz-executor
87802 474726 61888 0 3 0x8000082 nanoslp syz-executor
13124 78477 61888 0 3 0x8000082 nanoslp syz-executor
11735 291886 61888 0 3 0x8000082 nanoslp syz-executor
38082 348816 61888 0 3 0x8000082 nanoslp syz-executor
25744 199396 0 0 3 0x14280 nfsidl nfsio
52662 407059 0 0 3 0x14280 nfsidl nfsio
50637 296832 0 0 3 0x14280 nfsidl nfsio
17970 375313 0 0 3 0x14280 nfsidl nfsio
2191 362885 0 0 3 0x14280 nfsidl nfsio
97447 38725 0 0 3 0x14280 nfsidl nfsio
20063 277662 0 0 3 0x14280 nfsidl nfsio
475 39906 0 0 3 0x14280 nfsidl nfsio
86118 345327 0 0 3 0x14280 nfsidl nfsio
30510 12037 0 0 3 0x14280 nfsidl nfsio
93880 56628 0 0 3 0x14280 nfsidl nfsio
76621 116389 0 0 3 0x14280 nfsidl nfsio
77156 54920 0 0 3 0x14280 nfsidl nfsio
43782 220387 0 0 3 0x14280 nfsidl nfsio
85209 281957 0 0 3 0x14280 nfsidl nfsio
66453 312440 0 0 3 0x14280 nfsidl nfsio
47805 155321 0 0 3 0x14280 nfsidl nfsio
31021 461093 0 0 3 0x14280 nfsidl nfsio
4759 94135 0 0 3 0x14280 nfsidl nfsio
31783 387777 0 0 3 0x14280 nfsidl nfsio
77512 408525 0 0 3 0x14200 acct acct
63697 2616 0 0 3 0x14200 bored sosplice
61888 425841 84044 0 3 0x8000082 kqread syz-executor
84044 157976 8341 0 3 0x810008a sigsusp ksh
8341 149182 11189 0 3 0x18000098 kqread sshd-session
11189 298753 48005 0 3 0x18000092 kqread sshd-session
55292 68295 1 0 3 0x18100083 ttyin getty
48005 219694 1 0 3 0x18000088 kqread sshd
38573 305703 43940 73 2 0x19100010 syslogd
43940 34133 1 0 3 0x18100082 sbwait syslogd
91942 497030 1 0 3 0x18100080 kqread resolvd
91675 457580 75676 77 3 0x18100092 kqread dhcpleased
24327 484696 75676 77 3 0x18100092 kqread dhcpleased
75676 130776 1 0 3 0x18000080 kqread dhcpleased
71942 203864 0 0 3 0x14200 bored smr
48339 46104 0 0 2 0x14200 zerothread
85070 349327 0 0 3 0x14200 aiodoned aiodoned
58599 226874 0 0 3 0x14200 syncer update
93324 403101 0 0 3 0x14200 cleaner cleaner
41171 219930 0 0 3 0x14200 reaper reaper
50896 489823 0 0 3 0x14200 pgdaemon pagedaemon
89883 387890 0 0 3 0x14200 bored viomb
33024 55698 0 0 3 0x40014200 acpi0 acpi0
15003 402006 0 0 3 0x14200 bored softnet3
45869 205220 0 0 3 0x14200 bored softnet2
15033 283196 0 0 3 0x14200 bored softnet1
9737 280163 0 0 3 0x14200 bored softnet0
14478 469566 0 0 3 0x14200 bored systqmp
61108 111233 0 0 3 0x14200 bored systq
59072 72879 0 0 3 0x40014200 tmoslp softclock
62378 390649 0 0 3 0x40014200 idle0
1 461176 0 0 3 0x8080082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10183 10208K 10475K 166960K 12190 0
pcb 17 15K 17K 166960K 114 0
rtable 190 7K 8K 166960K 1148 0
pf 32 13K 21K 166960K 110 0
ifaddr 38 6K 7K 166960K 156 0
ifgroup 50 2K 2K 166960K 181 0
sysctl 3 1K 1K 166960K 3 0
counters 30 17K 18K 166960K 64 0
ioctlops 0 0K 4K 166960K 135 0
iov 0 0K 16K 166960K 116 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1428 90K 90K 166960K 2338 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 9K 166960K 20 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 26 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 18 65K 97K 166960K 1056 0
sigio 0 0K 0K 166960K 9 0
proc 58 59K 124K 166960K 1189 0
subproc 104 6K 6K 166960K 416 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 288 0
in_multi 85 6K 7K 166960K 387 0
ether_multi 1 0K 0K 166960K 13 0
mrt 1 0K 0K 166960K 5 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 73 334K 334K 166960K 73 0
exec 0 0K 1K 166960K 1020 0
pfkey data 0 0K 0K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 235 76K 102K 166960K 9936 0
UVM aobj 21 2K 2K 166960K 26 0
pinsyscall 39 78K 100K 166960K 2693 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 34 0
NDP 11 0K 2K 166960K 109 0
temp 62 6812K 6935K 166960K 32724 0
kqueue 14 22K 30K 166960K 127 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 208 0 204 3 2 1 3 0 8 0
rtentry 112 388 0 303 4 1 3 4 0 8 0
unpcb 144 576 0 559 4 3 1 4 0 8 0
syncache 336 3 0 3 1 1 0 1 0 8 0
tcpcb 808 429 0 422 20 13 7 14 0 8 6
arp 88 69 0 53 1 0 1 1 0 8 0
ipq 40 2 0 0 1 0 1 1 0 8 0
ipqe 40 4 0 2 1 0 1 1 0 8 0
inpcb 336 1135 0 1121 17 10 7 12 0 8 5
nd6 104 100 0 79 1 0 1 1 0 8 0
pkpcb 40 3 0 3 1 1 0 1 0 8 0
kcovpl 48 32 0 24 1 0 1 1 0 8 0
ppxss 1072 4 0 4 1 1 0 1 0 8 0
pfstscr 40 2 0 2 1 1 0 1 0 8 0
pfstkey 128 2 0 2 1 1 0 1 0 8 0
pfstate 344 2 0 2 1 1 0 1 0 8 0
pfrule 1344 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 1574 0 1200 30 2 28 29 0 8 1
art_table 32 1577 0 1200 4 0 4 4 0 8 0
art_node 16 387 0 311 1 0 1 1 0 8 0
sysvmsgpl 40 14 0 7 1 0 1 1 0 8 0
semapl 112 24 0 14 1 0 1 1 0 8 0
shmpl 112 23 0 5 1 0 1 1 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2833 0 1300 97 0 97 97 0 8 0
ffsino 240 2833 0 1300 91 0 91 91 0 8 0
nchpl 144 3869 0 2160 64 0 64 64 0 8 0
uvmvnodes 80 3576 0 0 73 0 73 73 0 8 0
vnodes 216 3576 0 0 199 0 199 199 0 8 0
namei 1024 16081 0 16081 2 1 1 2 0 8 1
vcpupl 3904 4 0 1 1 0 1 1 0 8 0
vmpool 664 7 0 4 1 0 1 1 0 8 0
kstatmem 264 90 0 68 3 0 3 3 0 8 0
scsiplug 72 6 0 6 2 1 1 1 0 8 1
scxspl 216 20794 0 20794 8 7 1 8 1 8 1
plimitpl 152 248 0 231 1 0 1 1 0 8 0
sigapl 424 1307 0 1239 8 0 8 8 0 8 0
futexpl 64 10812 0 10808 1 0 1 1 0 8 0
knotepl 120 23117 0 23066 16 8 8 10 0 8 6
kqueuepl 184 392 0 381 7 6 1 7 0 8 0
pipepl 288 281 0 253 3 0 3 3 0 8 0
fdescpl 432 1269 0 1239 5 1 4 5 0 8 0
filepl 120 8606 0 8337 21 5 16 16 0 8 6
lockfpl 104 456 0 446 2 1 1 2 0 8 0
lockfspl 48 117 0 111 1 0 1 1 0 8 0
sessionpl 144 45 0 37 1 0 1 1 0 8 0
pgrppl 48 80 0 64 1 0 1 1 0 8 0
ucredpl 104 1266 0 1253 1 0 1 1 0 8 0
zombiepl 144 1239 0 1239 1 0 1 1 0 8 1
processpl 1096 1307 0 1239 6 0 6 6 0 8 1
procpl 648 2263 0 2181 8 0 8 8 0 8 0
sosppl 168 6 0 6 1 1 0 1 0 8 0
sockpl 504 1933 0 1898 35 23 12 22 0 8 7
mcl64k 65536 6 0 6 2 1 1 1 0 8 1
mcl16k 16384 1 0 1 1 1 0 1 0 8 0
mcl8k 8192 19 0 19 2 1 1 1 0 8 1
mcl4k 4096 3 0 3 1 1 0 1 0 8 0
mcl2k2 2112 1 0 1 1 0 1 1 0 8 1
mcl2k 2048 6970 0 6875 27 12 15 26 0 8 0
mtagpl 96 24 0 18 1 0 1 1 0 8 0
mbufpl 256 15225 0 15025 18 2 16 18 0 8 0
bufpl 280 7333 0 1088 447 0 447 447 0 8 0
anonpl 24 284393 0 281002 100 50 50 78 0 187 25
amapchunkpl 152 33893 0 33382 76 41 35 62 0 158 15
amappl16 200 7407 0 7387 47 38 9 27 0 8 7
amappl15 192 33 0 33 1 1 0 1 0 8 0
amappl14 184 158 0 148 1 0 1 1 0 8 0
amappl13 176 26 0 26 1 1 0 1 0 8 0
amappl12 168 2256 0 2226 3 1 2 3 0 8 0
amappl11 160 53 0 43 1 0 1 1 0 8 0
amappl10 152 12 0 12 1 1 0 1 0 8 0
amappl9 144 114 0 114 1 1 0 1 0 8 0
amappl8 136 43 0 42 1 0 1 1 0 8 0
amappl7 128 154 0 143 1 0 1 1 0 8 0
amappl6 120 401 0 400 1 0 1 1 0 8 0
amappl5 112 226 0 218 1 0 1 1 0 8 0
amappl4 104 359 0 344 1 0 1 1 0 8 0
amappl3 96 6428 0 6310 4 0 4 4 0 8 1
amappl2 88 940 0 883 2 0 2 2 0 8 0
amappl1 80 11632 0 11097 14 2 12 14 0 8 0
amappl 88 9370 0 9191 5 0 5 5 0 92 0
dma65536 65536 2 0 2 2 1 1 1 0 8 1
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 1 1 0 1 0 8 0
dma128 128 254 0 254 2 1 1 1 0 8 1
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 8 0 8 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 25 0 5 1 0 1 1 0 8 0
uaddrrnd 24 1276 0 1243 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1276 0 1243 1 0 1 1 0 8 0
vmmpekpl 168 11576 0 11520 3 0 3 3 0 8 0
vmmpepl 168 87114 0 85312 110 20 90 100 0 357 11
vmsppl 344 1275 0 1243 5 1 4 4 0 8 1
rwobjpl 24 32498 0 28040 28 1 27 27 0 8 0
pdppl 4096 2558 0 2489 144 73 71 82 0 8 2
pvpl 32 698676 0 688396 486 261 225 355 0 265 136
pmappl 216 1275 0 1243 3 1 2 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 502 0 144 12 1 11 12 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
end trace frame: 0x0, count: -1
ddb> machine ddbcpu 1
No such command
ddb> trace
end trace frame: 0x0, count: -1