kernel: protection fault trap, code=0
Stopped at done_flush+0x38: movl %eax,%dr6
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
done_flush() at done_flush+0x38
vm_run(ffff80002e4f8c40) at vm_run+0x1cf sys/arch/amd64/amd64/vmm.c:4524
vmmioctl(a00,c0205602,ffff80002e4f8c40,1,ffff8000fffed268) at vmmioctl+0x157 sys/arch/amd64/amd64/vmm.c:675
VOP_IOCTL(fffffd806ec957a0,c0205602,ffff80002e4f8c40,1,fffffd807f7d74e0,ffff8000fffed268) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd8066ad55f0,c0205602,ffff80002e4f8c40,ffff8000fffed268) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525
sys_ioctl(ffff8000fffed268,ffff80002e4f8d58,ffff80002e4f8da0) at sys_ioctl+0x4a2
syscall(ffff80002e4f8e20) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002e4f8e20) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x830f0c9e590, count: -8
ddb{0}> show registers
rdi 0x6c14 __ALIGN_SIZE+0x5c14
rsi 0xffff80002962ae48
rbp 0xffff80002e4f8990
rbx 0x756e6547
rdx 0x49656e69
rcx 0x6c65746e
rax 0xffffffffffffffff
r8 0
r9 0x10000 __ALIGN_SIZE+0xf000
r10 0xf3634e1bc582b757
r11 0xed12c688f3331880
r12 0xffff80002962aba0
r13 0xffffffff829adff0 cpu_info_full_primary+0x1ff0
r14 0xffff80002962a800
r15 0xffff80002e4f8c40
rip 0xffffffff81522a00 done_flush+0x38
cs 0x8
rflags 0x10046 __ALIGN_SIZE+0xf046
rsp 0xffff80002e4f87e6
ss 0x10
done_flush+0x38: movl %eax,%dr6
ddb{0}> show proc
PROC (syz-executor.4) pid=83306 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=80, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffed508,0xffff8000fffec2b8
process=0xffff8000ffff3258 user=0xffff80002e4f3000, vmspace=0xfffffd8069ec6180
estcpu=36, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
81915 205464 44810 0 2 0 syz-executor.7
81915 231257 44810 0 2 0x4000000 syz-executor.7
97126 91646 96272 0 2 0 syz-executor.4
*97126 83306 96272 0 7 0x4000000 syz-executor.4
39253 421227 4616 0 3 0x80 nanoslp syz-executor.1
39253 54299 4616 0 3 0x4000080 fsleep syz-executor.1
39253 77079 4616 0 3 0x4000080 fsleep syz-executor.1
77760 493811 51680 0 3 0x80 nanoslp syz-executor.5
77760 503968 51680 0 3 0x4000080 fsleep syz-executor.5
55044 150905 55117 0 7 0 syz-executor.6
55044 424919 55117 0 2 0x4000000 syz-executor.6
55044 187794 55117 0 3 0x4000080 fsleep syz-executor.6
55044 64972 55117 0 2 0x4000000 syz-executor.6
5973 298663 18548 0 3 0x80 nanoslp syz-executor.3
5973 239768 18548 0 2 0x4000000 syz-executor.3
17917 302229 97641 0 3 0x2 biowait syz-executor.0
51680 338704 97641 0 3 0x82 nanoslp syz-executor.5
51917 466590 97641 0 3 0x82 nanoslp syz-executor.2
29138 47800 0 0 3 0x14280 nfsidl nfsio
6825 167875 0 0 3 0x14280 nfsidl nfsio
37329 369498 0 0 3 0x14280 nfsidl nfsio
75501 441499 0 0 3 0x14280 nfsidl nfsio
11215 21651 0 0 3 0x14280 nfsidl nfsio
69252 476487 0 0 3 0x14280 nfsidl nfsio
52490 37050 0 0 3 0x14280 nfsidl nfsio
4465 227345 0 0 3 0x14280 nfsidl nfsio
99406 363488 0 0 3 0x14280 nfsidl nfsio
22918 74387 0 0 3 0x14280 nfsidl nfsio
94087 287377 0 0 3 0x14280 nfsidl nfsio
47154 370953 0 0 3 0x14280 nfsidl nfsio
97962 447536 0 0 3 0x14280 nfsidl nfsio
42491 314162 0 0 3 0x14280 nfsidl nfsio
75496 87772 0 0 3 0x14280 nfsidl nfsio
17889 413846 0 0 3 0x14280 nfsidl nfsio
56121 331206 0 0 3 0x14280 nfsidl nfsio
23046 267043 0 0 3 0x14280 nfsidl nfsio
13446 266335 0 0 3 0x14280 nfsidl nfsio
73019 502503 0 0 3 0x14280 nfsidl nfsio
55206 167478 0 0 3 0x14200 bored sosplice
96272 408658 97641 0 3 0x82 nanoslp syz-executor.4
55117 486720 97641 0 3 0x82 nanoslp syz-executor.6
44810 205538 97641 0 3 0x82 nanoslp syz-executor.7
18548 10281 97641 0 3 0x82 nanoslp syz-executor.3
4616 334021 97641 0 3 0x82 nanoslp syz-executor.1
97641 330578 68538 0 3 0x82 wait syz-fuzzer
97641 395885 68538 0 3 0x4000082 nanoslp syz-fuzzer
97641 203728 68538 0 3 0x4000082 wait syz-fuzzer
97641 131238 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 423888 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 177386 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 308642 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 159671 68538 0 3 0x4000082 wait syz-fuzzer
97641 41114 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 201338 68538 0 3 0x4000082 wait syz-fuzzer
97641 299730 68538 0 3 0x4000082 kqread syz-fuzzer
97641 155611 68538 0 3 0x4000082 wait syz-fuzzer
97641 95718 68538 0 3 0x4000082 wait syz-fuzzer
97641 336133 68538 0 3 0x4000082 wait syz-fuzzer
97641 364098 68538 0 3 0x4000082 thrsleep syz-fuzzer
97641 261230 68538 0 3 0x4000082 wait syz-fuzzer
68538 72694 79161 0 3 0x10008a sigsusp ksh
79161 283093 9218 0 3 0x9a kqread sshd
80621 253327 1 0 3 0x100083 ttyin getty
9218 287431 1 0 3 0x88 kqread sshd
25040 458522 88274 74 3 0x1100092 bpf pflogd
88274 172774 1 0 3 0x80 netio pflogd
33070 137209 79690 73 3 0x1100090 kqread syslogd
79690 305733 1 0 3 0x100082 netio syslogd
73910 394694 1 0 3 0x100080 kqread resolvd
27220 505932 36251 77 3 0x100092 kqread dhcpleased
53616 241390 36251 77 3 0x100092 kqread dhcpleased
36251 142107 1 0 3 0x80 kqread dhcpleased
15080 282134 0 0 3 0x14200 bored smr
36984 267704 0 0 2 0x14200 zerothread
35051 347435 0 0 3 0x14200 aiodoned aiodoned
54464 294024 0 0 3 0x14200 syncer update
51398 125255 0 0 3 0x14200 cleaner cleaner
63508 495415 0 0 3 0x14200 reaper reaper
79261 410594 0 0 3 0x14200 pgdaemon pagedaemon
53761 255198 0 0 3 0x14200 bored viomb
53680 364254 0 0 3 0x40014200 acpi0 acpi0
91310 61024 0 0 3 0x40014200 idle1
69308 305875 0 0 3 0x14200 bored softnet
61352 240164 0 0 3 0x14200 bored softnet
12364 314103 0 0 3 0x14200 bored softnet
77444 477445 0 0 3 0x14200 bored softnet
66457 36599 0 0 3 0x14200 bored systqmp
14172 203937 0 0 3 0x14200 bored systq
47968 250244 0 0 3 0x40014200 bored softclock
46366 218941 0 0 3 0x40014200 idle0
1 146084 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10198 6477K 6744K 78643K 12634 0
pcb 13 14K 16K 78643K 198 0
rtable 231 7K 8K 78643K 554 0
ifaddr 74 16K 17K 78643K 151 0
sysctl 2 0K 0K 78643K 2 0
counters 60 35K 36K 78643K 114 0
ioctlops 0 0K 4K 78643K 1591 0
iov 0 0K 24K 78643K 325 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1358 85K 85K 78643K 1910 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 11 0
VM map 2 1K 1K 78643K 2 0
sem 11 1K 1K 78643K 11 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 89K 78643K 1296 0
sigio 0 0K 0K 78643K 2 0
proc 70 91K 128K 78643K 694 0
subproc 104 6K 6K 78643K 143 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 165 0
in_multi 98 6K 6K 78643K 152 0
ether_multi 1 0K 0K 78643K 6 0
mrt 0 0K 0K 78643K 16 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 637 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 339 121K 135K 78643K 11459 0
UVM aobj 64 2K 2K 78643K 64 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 22 0
NDP 12 0K 1K 78643K 50 0
temp 128 4690K 5705K 78643K 14586 0
kqueue 12 18K 26K 78643K 137 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 149 0 146 3 0 3 3 0 8 2
rtentry 112 151 0 45 4 0 4 4 0 8 0
unpcb 144 622 0 607 7 5 2 6 0 8 1
syncache 296 7 0 7 2 2 0 1 0 8 0
tcpqe 32 71 0 71 2 2 0 1 0 8 0
tcpcb 776 550 0 545 21 14 7 14 0 8 6
arp 120 24 0 8 1 0 1 1 0 8 0
inpcb 368 1423 0 1416 32 25 7 13 0 8 6
nd6 48 33 0 9 1 0 1 1 0 8 0
kcovpl 48 11 0 3 1 0 1 1 0 8 0
ppxss 1256 18 0 18 3 2 1 1 0 8 1
pppxif 1448 4 0 4 1 1 0 1 0 8 0
pffrag 232 2 0 2 1 1 0 1 0 482 0
pffrnode 88 2 0 2 1 1 0 1 0 8 0
pffrent 40 4 0 4 1 1 0 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 1280 129 0 67 11 5 6 11 0 8 0
pfqueue 264 3 0 3 1 1 0 1 0 8 0
pfstitem 24 33 0 24 1 0 1 1 0 8 0
pfstkey 128 33 0 24 1 0 1 1 0 8 0
pfstate 384 33 0 24 3 1 2 3 0 8 0
pfrule 1344 21 0 20 2 1 1 2 0 8 0
rttmr 136 3 0 3 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 612 0 160 32 3 29 29 0 8 0
art_table 32 613 0 160 4 0 4 4 0 8 0
art_node 16 150 0 54 1 0 1 1 0 8 0
sysvmsgpl 40 14 0 12 3 2 1 1 0 8 0
semapl 112 9 0 0 1 0 1 1 0 8 0
shmpl 112 61 0 0 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 3018 0 1581 91 0 91 91 0 8 0
ffsino 272 3018 0 1581 97 0 97 97 0 8 0
nchpl 144 4912 0 3268 63 0 63 63 0 8 0
rtmask 32 4 0 4 2 1 1 1 0 8 1
uvmvnodes 80 3625 0 0 74 0 74 74 0 8 0
vnodes 216 3625 0 0 202 0 202 202 0 8 0
namei 1024 17194 0 17194 3 2 1 2 0 8 1
percpumem 16 69 0 27 1 0 1 1 0 8 0
vcpupl 2048 2 0 0 1 0 1 1 0 8 0
vmpool 568 4 0 2 1 0 1 1 0 8 0
kstatmem 264 56 0 32 2 0 2 2 0 8 0
scxspl 216 14842 0 14841 11 10 1 8 0 8 0
plimitpl 152 320 0 304 1 0 1 1 0 8 0
sigapl 424 1618 0 1550 10 2 8 8 0 8 0
futexpl 64 10126 0 10122 2 1 1 1 0 8 0
knotepl 120 316 0 0 8 0 8 8 0 8 0
kqueuepl 216 228 0 219 3 2 1 3 0 8 0
pipepl 320 1123 0 1095 18 12 6 9 0 8 3
fdescpl 496 1580 0 1551 5 0 5 5 0 8 0
filepl 152 10979 0 10737 32 16 16 19 0 8 5
lockfpl 104 910 0 908 4 3 1 2 0 8 0
lockfspl 48 213 0 211 1 0 1 1 0 8 0
sessionpl 144 27 0 10 1 0 1 1 0 8 0
pgrppl 48 35 0 18 1 0 1 1 0 8 0
ucredpl 104 672 0 660 1 0 1 1 0 8 0
zombiepl 144 1551 0 1550 1 0 1 1 0 8 0
processpl 1072 1618 0 1550 5 0 5 5 0 8 0
procpl 672 4501 0 4409 12 3 9 10 0 8 0
srpgc 96 2 0 2 1 1 0 1 0 8 0
sosppl 168 22 0 22 2 2 0 1 0 8 0
sockpl 488 2194 0 2169 62 50 12 25 0 8 8
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 8 0 0 1 0 1 1 0 8 0
mcl12k 12288 9 0 0 1 0 1 1 0 8 0
mcl9k 9216 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 14 0 0 2 0 2 2 0 8 0
mcl4k 4096 16 0 0 2 0 2 2 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 456 0 0 56 0 56 56 0 8 0
mtagpl 96 107 0 0 3 0 3 3 0 8 0
mbufpl 256 499 0 0 31 0 31 31 0 8 0
bufpl 288 6044 0 156 421 0 421 421 0 8 0
anonpl 24 367219 0 349934 120 6 114 116 0 186 2
amapchunkpl 152 33609 0 32846 47 12 35 41 0 158 0
amappl16 200 4105 0 3573 34 3 31 31 0 8 2
amappl15 192 8 0 8 1 1 0 1 0 8 0
amappl14 184 148 0 134 2 1 1 2 0 8 0
amappl13 176 10 0 9 1 0 1 1 0 8 0
amappl12 168 458 0 456 1 0 1 1 0 8 0
amappl11 160 46 0 32 1 0 1 1 0 8 0
amappl10 152 48 0 36 1 0 1 1 0 8 0
amappl9 144 954 0 953 1 0 1 1 0 8 0
amappl8 136 185 0 128 2 0 2 2 0 8 0
amappl7 128 159 0 133 2 0 2 2 0 8 0
amappl6 120 165 0 154 1 0 1 1 0 8 0
amappl5 112 143 0 134 1 0 1 1 0 8 0
amappl4 104 519 0 489 2 1 1 2 0 8 0
amappl3 96 4426 0 4368 2 0 2 2 0 8 0
amappl2 88 1997 0 1917 3 1 2 3 0 8 0
amappl1 80 39192 0 38391 25 7 18 23 0 8 0
amappl 88 10883 0 10684 6 0 6 6 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 128 253 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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 63 0 0 2 0 2 2 0 8 0
uaddrrnd 24 1584 0 1553 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1584 0 1553 1 0 1 1 0 8 0
vmmpekpl 168 22843 0 22778 4 0 4 4 0 8 0
vmmpepl 168 155308 0 152448 183 44 139 168 0 357 8
vmsppl 368 1583 0 1553 4 1 3 4 0 8 0
rwobjpl 56 47528 0 42088 79 1 78 78 0 8 0
pdppl 4096 3175 0 3108 140 69 71 81 0 8 4
pvpl 32 770472 0 747472 278 69 209 270 0 265 10
pmappl 248 1583 0 1553 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 924 0 104 24 0 24 24 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
done_flush() at done_flush+0x38
vm_run(ffff80002e4f8c40) at vm_run+0x1cf sys/arch/amd64/amd64/vmm.c:4524
vmmioctl(a00,c0205602,ffff80002e4f8c40,1,ffff8000fffed268) at vmmioctl+0x157 sys/arch/amd64/amd64/vmm.c:675
VOP_IOCTL(fffffd806ec957a0,c0205602,ffff80002e4f8c40,1,fffffd807f7d74e0,ffff8000fffed268) at VOP_IOCTL+0x96 sys/kern/vfs_vops.c:264
vn_ioctl(fffffd8066ad55f0,c0205602,ffff80002e4f8c40,ffff8000fffed268) at vn_ioctl+0xbc sys/kern/vfs_vnops.c:525
sys_ioctl(ffff8000fffed268,ffff80002e4f8d58,ffff80002e4f8da0) at sys_ioctl+0x4a2
syscall(ffff80002e4f8e20) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002e4f8e20) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x830f0c9e590, count: -8
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7ffffc87d0, count: -3