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
end trace frame: 0x0, count: -1
ddb{0}> show registers
rdi 0x6c14 __ALIGN_SIZE+0x5c14
rsi 0xffff8000fffd5b18
rbp 0
rbx 0x756e6547
rdx 0x49656e69
rcx 0x6c65746e
rax 0xc5a8ae57121b
r8 0
r9 0x10000 __ALIGN_SIZE+0xf000
r10 0
r11 0
r12 0
r13 0
r14 0
r15 0
rip 0xffffffff811954bb done_flush+0x38
cs 0x8
rflags 0x10046 __ALIGN_SIZE+0xf046
rsp 0xffff80003a7f2478
ss 0x10
done_flush+0x38: movl %eax,%dr6
ddb{0}> show proc
PROC (syz-executor) tid=130255 pid=50410 tcnt=3 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=76, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000fffe8a80,0xffff8000fffe8560
process=0xffff8000fffe7040 user=0xffff80003a7ed000, vmspace=0xfffffd8073fd55c0
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
7162 337010 75789 0 2 0 syz-executor
50410 282978 6564 0 2 0 syz-executor
*50410 130255 6564 0 7 0x4000000 syz-executor
50410 209921 6564 0 2 0x4000000 syz-executor
1762 4263 75808 0 7 0 syz-executor
1762 211764 75808 0 2 0x4000080 syz-executor
46089 465060 35172 0 2 0 syz-executor
46089 436253 35172 0 3 0x4000080 fsleep syz-executor
69328 148882 78083 0 3 0x3000 suspend syz-executor
69328 349293 78083 0 2 0x4081000 syz-executor
69328 291707 78083 0 2 0x4081000 syz-executor
69328 118395 78083 0 2 0x4081000 syz-executor
77777 290090 55263 0 3 0x80 fsleep syz-executor
77777 9323 55263 0 3 0x4000080 msgwait syz-executor
96108 515855 1 0 3 0x100083 ttyin getty
78083 495514 34050 0 3 0x82 nanoslp syz-executor
75789 167456 34050 0 3 0x82 nanoslp syz-executor
75808 360808 34050 0 3 0x82 nanoslp syz-executor
35172 324765 34050 0 3 0x82 nanoslp syz-executor
6564 247327 34050 0 3 0x82 nanoslp syz-executor
73916 95196 34050 0 3 0x82 wait syz-executor
55263 102468 34050 0 3 0x82 nanoslp syz-executor
52081 218139 34050 0 3 0x82 wait syz-executor
34050 14927 44047 0 3 0x82 kqread syz-executor
44047 116461 23848 0 3 0x10008a sigsusp ksh
23848 128126 5337 0 3 0x98 kqread sshd-session
5337 358274 11205 0 3 0x92 kqread sshd-session
11205 58154 1 0 3 0x88 kqread sshd
14533 483614 66068 74 3 0x1100092 bpf pflogd
66068 434507 1 0 3 0x80 sbwait pflogd
74031 497921 81744 73 3 0x1100090 kqread syslogd
81744 253427 1 0 3 0x100082 sbwait syslogd
10163 445074 1 0 3 0x100080 kqread resolvd
17969 75815 86782 77 3 0x100092 kqread dhcpleased
7617 145249 86782 77 3 0x100092 kqread dhcpleased
86782 502594 1 0 3 0x80 kqread dhcpleased
82163 512470 0 0 3 0x14200 bored smr
15660 329162 0 0 2 0x14200 zerothread
65054 339316 0 0 3 0x14200 aiodoned aiodoned
33020 234958 0 0 3 0x14200 syncer update
2806 334697 0 0 3 0x14200 cleaner cleaner
71658 128472 0 0 3 0x14200 reaper reaper
92262 384087 0 0 3 0x14200 pgdaemon pagedaemon
44561 126659 0 0 3 0x14200 bored viomb
60658 114533 0 0 3 0x40014200 acpi0 acpi0
62792 443813 0 0 3 0x40014200 idle1
35936 160073 0 0 3 0x14200 bored softnet1
8092 140871 0 0 3 0x14200 bored softnet0
54765 132187 0 0 3 0x14200 smrbar systqmp
28573 113050 0 0 3 0x14200 bored systq
90722 463294 0 0 3 0x14200 tmoslp softclockmp
6755 141400 0 0 3 0x40014200 tmoslp softclock
74135 320392 0 0 3 0x40014200 idle0
1 97973 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 50410 (syz-executor) thread 0xffff8000fffe94e0 (130255)
exclusive rwlock vcpu r = 0 (0xffff8000fffd5870)
#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 vm_run+0xa2 sys/arch/amd64/amd64/vmm_machdep.c:-1
#3 vmmioctl+0x337 sys/dev/vmm/vmm.c:254
#4 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#5 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531
#6 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#7 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#7 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#8 Xsyscall+0x128
Process 54765 (systqmp) thread 0xffff8000ffffe298 (132187)
shared rwlock systqmp r = 0 (0xffffffff837f8248)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10235 11040K 11271K 166960K 12590 0
pcb 17 16K 18K 166960K 431 0
rtable 254 12K 12K 166960K 683 0
pf 41 19K 81K 166960K 296 0
ifaddr 43 8K 9K 166960K 145 0
ifgroup 59 2K 3K 166960K 260 0
sysctl 4 1K 9K 166960K 23 0
counters 72 37K 38K 166960K 278 0
ioctlops 0 0K 4K 166960K 2080 0
iov 0 0K 28K 166960K 130 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1399 88K 89K 166960K 2623 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 22 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 99 0
dirhash 69 12K 15K 166960K 1434 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 236K 166960K 1846 0
sigio 0 0K 0K 166960K 49 0
proc 73 115K 180K 166960K 846 0
subproc 72 4K 4K 166960K 118 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 2 0K 0K 166960K 421 0
in_multi 96 7K 7K 166960K 207 0
ether_multi 1 0K 0K 166960K 15 0
mrt 2 0K 0K 166960K 19 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 259 1155K 1155K 166960K 259 0
exec 0 0K 1K 166960K 797 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 254 160K 174K 166960K 18381 0
UVM aobj 45 14K 14K 166960K 51 0
pinsyscall 43 86K 101K 166960K 3130 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 124 0
NDP 13 0K 2K 166960K 103 0
temp 81 8676K 8742K 166960K 92693 0
kqueue 14 22K 32K 166960K 354 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 120 280 0 277 5 4 1 3 0 8 0
rtentry 176 207 0 102 6 0 6 6 0 8 0
unpcb 144 1314 0 1295 13 7 6 6 0 8 5
syncache 336 10 0 10 6 5 1 1 0 8 1
tcpqe 32 1 0 1 1 1 0 1 0 8 0
tcpcb 736 792 0 786 23 19 4 7 0 8 3
arp 136 31 0 13 1 0 1 1 0 8 0
inpcb 328 2206 0 2196 19 14 5 8 0 8 4
nd6 152 43 0 16 2 0 2 2 0 8 0
pkpcb 40 9 0 9 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 78 0 78 2 1 1 1 0 8 1
pppxif 1504 12 0 12 3 2 1 1 0 8 1
pfstscr 40 5 0 4 1 0 1 1 0 8 0
pffrag 232 55 0 44 1 0 1 1 0 482 0
pffrnode 88 15 0 6 1 0 1 1 0 8 0
pffrent 40 154 0 143 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
pfrktable 1344 1 0 1 1 1 0 1 0 8 0
pfstitem 24 129 0 69 1 0 1 1 0 8 0
pfstkey 128 136 0 76 3 0 3 3 0 8 0
pfstate 448 132 0 73 7 0 7 7 0 8 0
pfrule 1344 27 0 22 2 1 1 2 0 8 0
rttmr 136 4 0 4 2 1 1 1 0 8 1
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 902 0 458 38 8 30 31 0 8 2
art_table 40 905 0 458 6 1 5 6 0 8 0
art_node 32 207 0 113 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 12 1 0 1 1 0 8 0
semupl 112 3 0 3 3 3 0 1 0 8 0
semapl 112 94 0 84 1 0 1 1 0 8 0
shmpl 112 43 0 5 2 0 2 2 0 8 0
dirhash 1024 494 0 458 7 1 6 6 0 8 1
dino2pl 256 4764 0 3244 96 0 96 96 0 8 0
ffsino 296 4764 0 3244 118 0 118 118 0 8 0
nchpl 144 7251 0 5536 65 0 65 65 0 8 0
rtmask 32 16 0 16 5 4 1 1 0 8 1
vnodes 216 5411 0 0 301 0 301 301 0 8 0
namei 1024 26571 0 26571 1 0 1 1 0 8 1
percpumem 16 154 0 103 1 0 1 1 0 8 0
vcpupl 3968 4 0 0 1 0 1 1 0 8 0
vmpool 840 5 0 1 1 0 1 1 0 8 0
kstatmem 264 156 0 128 5 2 3 3 0 8 0
scsiplug 72 7 0 7 4 3 1 1 0 8 1
scxspl 216 49448 0 49448 12 10 2 8 1 8 2
plimitpl 152 684 0 667 1 0 1 1 0 8 0
sigapl 424 2136 0 2088 7 1 6 7 0 8 0
knotepl 120 611 0 0 18 0 18 18 0 8 0
kqueuepl 224 904 0 894 13 10 3 5 0 8 1
pipepl 344 308 0 281 4 1 3 4 0 8 0
fdescpl 528 2119 0 2087 3 0 3 3 0 8 0
filepl 160 14812 0 14591 29 14 15 19 0 8 4
lockfpl 104 617 0 615 1 0 1 1 0 8 0
lockfspl 48 238 0 236 1 0 1 1 0 8 0
sessionpl 144 37 0 28 1 0 1 1 0 8 0
pgrppl 48 67 0 50 1 0 1 1 0 8 0
ucredpl 104 2391 0 2377 1 0 1 1 0 8 0
zombiepl 144 2091 0 2088 1 0 1 1 0 8 0
processpl 1232 2136 0 2088 5 1 4 5 0 8 0
procpl 664 4840 0 4784 6 0 6 6 0 8 0
sosppl 176 19 0 19 3 3 0 1 0 8 0
sockpl 752 3998 0 3966 36 24 12 17 0 8 7
mcl64k 65536 18 0 0 3 0 3 3 0 8 0
mcl16k 16384 1 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 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 123 0 0 16 0 16 16 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 46 0 0 6 0 6 6 0 8 0
mtagpl 96 6 0 0 1 0 1 1 0 8 0
mbufpl 256 1453 0 0 91 0 91 91 0 8 0
bufpl 280 20776 0 14640 439 0 439 439 0 8 0
anonpl 32 15876 0 0 128 0 128 128 0 246 0
amapchunkpl 152 62454 0 61859 47 10 37 37 0 158 11
amappl16 200 8943 0 8678 62 35 27 36 0 8 0
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 7 0 7 1 1 0 1 0 8 0
amappl13 176 492 0 491 1 0 1 1 0 8 0
amappl12 168 2551 0 2509 2 0 2 2 0 8 0
amappl11 160 5 0 4 1 0 1 1 0 8 0
amappl10 152 65 0 51 1 0 1 1 0 8 0
amappl9 144 245 0 244 2 1 1 1 0 8 0
amappl8 136 32 0 28 1 0 1 1 0 8 0
amappl7 128 96 0 95 1 0 1 1 0 8 0
amappl6 120 350 0 337 1 0 1 1 0 8 0
amappl5 112 91 0 80 1 0 1 1 0 8 0
amappl4 104 497 0 467 1 0 1 1 0 8 0
amappl3 96 12428 0 12316 5 1 4 4 0 8 0
amappl2 88 666 0 604 2 0 2 2 0 8 0
amappl1 80 18574 0 17980 14 0 14 14 0 8 0
amappl 88 17243 0 17066 5 0 5 5 0 92 0
uvmvnodes 80 164 0 0 4 0 4 4 0 8 0
dma65536 65536 1 0 1 1 1 0 1 0 8 0
dma4096 4096 3 0 3 3 3 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma512 512 1 0 1 1 1 0 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 255 0 255 3 2 1 1 0 8 1
dma64 64 9 0 9 3 3 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 50 0 6 1 0 1 1 0 8 0
uaddrrnd 24 2119 0 2087 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2119 0 2087 1 0 1 1 0 8 0
vmmpekpl 168 17279 0 17233 3 0 3 3 0 8 0
vmmpepl 168 142797 0 140571 124 15 109 115 0 357 2
vmsppl 488 2118 0 2087 9 4 5 5 0 8 1
rwobjpl 80 40097 0 38709 40 5 35 36 0 8 0
pdppl 4096 4256 0 4180 112 36 76 84 0 8 0
pvpl 32 22844 0 0 187 2 185 185 0 265 0
pmappl 256 2123 0 2088 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 422 0 76 11 0 11 11 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
end trace frame: 0x0, count: -1
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
end of kernel
end trace frame: 0x7b5e25dc9c90, count: -3