kernel: page fault trap, code=0
Stopped at 0
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
attempt to execute user address 0x0 in supervisor mode
0(0,0,ffff800020a4f5f8,ffff800020a4f650,ffffffffffffffff,ffffffffffffffff) at 0
taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369
end trace frame: 0x0, count: 1
ddb{1}> trace
0(0,0,ffff800020a4f5f8,ffff800020a4f650,ffffffffffffffff,ffffffffffffffff) at 0
taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369
end trace frame: 0x0, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff800020a4f650
rbx 0
rdx 0xffff800020a4f5f8
rcx 0
rax 0xd
r8 0x8
r9 0x3
r10 0x73dc346864c56e32
r11 0
r12 0xffff800020a4f5f8
r13 0x1
r14 0xffff80000002b080
r15 0xffff80000002b0e0
rip 0
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800020a4f5e8
ss 0x10
0
ddb{1}> show proc
PROC (softnet) pid=475034 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff800020a28c30,0xffff800020a284f0
process=0xffff800020a2b680 user=0xffff800020a4a000, vmspace=0xffffffff826445c8
estcpu=1, cpticks=2, pctcpu=1.16
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
33530 197957 21165 0 2 0 syz-executor.0
33530 230581 21165 0 7 0x4000000 syz-executor.0
90986 206711 2411 0 2 0 syz-executor.1
90986 218421 2411 0 3 0x4000000 netlock syz-executor.1
90986 216369 2411 0 2 0x4000000 syz-executor.1
2411 229409 72366 0 3 0x82 nanosleep syz-executor.1
21165 120466 72366 0 3 0x82 nanosleep syz-executor.0
72366 364086 92049 0 3 0x82 thrsleep syz-fuzzer
72366 85111 92049 0 3 0x4000082 nanosleep syz-fuzzer
72366 448061 92049 0 3 0x4000082 thrsleep syz-fuzzer
72366 113507 92049 0 3 0x4000082 thrsleep syz-fuzzer
72366 64394 92049 0 3 0x4000082 thrsleep syz-fuzzer
72366 313108 92049 0 3 0x4000082 nanosleep syz-fuzzer
72366 222676 92049 0 3 0x4000082 thrsleep syz-fuzzer
72366 281142 92049 0 3 0x4000082 kqread syz-fuzzer
72366 483854 92049 0 3 0x4000082 thrsleep syz-fuzzer
72366 362464 92049 0 3 0x4000082 thrsleep syz-fuzzer
92049 418391 32398 0 3 0x10008a pause ksh
32398 200844 15243 0 3 0x92 select sshd
25310 15822 1 0 3 0x100083 ttyin getty
15243 170067 1 0 3 0x80 select sshd
42938 20215 82204 74 3 0x100092 bpf pflogd
82204 194828 1 0 3 0x80 netio pflogd
17631 476626 2239 73 3 0x100090 kqread syslogd
2239 458170 1 0 3 0x100082 netio syslogd
29127 64456 1 77 3 0x100090 poll dhclient
9082 332462 1 0 3 0x80 poll dhclient
72834 505226 0 0 3 0x14200 pgzero zerothread
68882 338176 0 0 3 0x14200 aiodoned aiodoned
21407 58291 0 0 3 0x14200 syncer update
71656 147040 0 0 3 0x14200 cleaner cleaner
17914 370841 0 0 3 0x14200 reaper reaper
30443 344754 0 0 3 0x14200 pgdaemon pagedaemon
80331 233730 0 0 3 0x14200 bored crynlk
7457 198564 0 0 3 0x14200 bored crypto
58814 188987 0 0 3 0x40014200 acpi0 acpi0
93734 283521 0 0 3 0x40014200 idle1
* 4964 475034 0 0 7 0x14200 softnet
19616 379168 0 0 3 0x14200 bored systqmp
70687 464155 0 0 3 0x14200 bored systq
68921 363674 0 0 3 0x40014200 bored softclock
34577 481748 0 0 3 0x40014200 idle0
53317 7785 0 0 3 0x14200 bored smr
1 77592 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 33530 (syz-executor.0) thread 0xffff800020ac9608 (230581)
exclusive rwlock netlock r = 0 (0xffffffff8250ada8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 solock+0x5a sys/kern/uipc_socket2.c:282
#2 sosend+0x559 sys/kern/uipc_socket.c:537
#3 sendit+0x52b sys/kern/uipc_syscalls.c:657
#4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:522
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#6 Xsyscall+0x128
Process 4964 (softnet) thread 0xffff800020a28750 (475034)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82619df8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180
#2 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302
#3 alltraps_kern_meltdown+0x7b
shared rwlock softnet r = 0 (0xffff80000002b0e0)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1164
#1 taskq_thread+0x8f sys/kern/kern_task.c:368
#2 proc_trampoline+0x1c
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9508 6475K 6668K 78643K 10756 0
pcb 13 8K 8K 78643K 22 0
rtable 108 4K 4K 78643K 248 0
ifaddr 66 14K 14K 78643K 90 0
counters 39 33K 33K 78643K 39 0
ioctlops 0 0K 4K 78643K 1473 0
iov 0 0K 12K 78643K 12 0
mount 1 1K 1K 78643K 1 0
vnodes 1220 77K 77K 78643K 1281 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 4 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 58 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 6 17K 25K 78643K 101 0
sigio 0 0K 0K 78643K 6 0
proc 61 63K 95K 78643K 450 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 8 0
in_multi 62 3K 3K 78643K 67 0
ether_multi 1 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 49 228K 228K 78643K 49 0
exec 0 0K 1K 78643K 217 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 105 21K 30K 78643K 1260 0
UVM aobj 6 2K 2K 78643K 6 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 10 0
NDP 9 0K 0K 78643K 17 0
temp 88 3010K 3074K 78643K 5248 0
kqueue 3 4K 9K 78643K 11 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 7 0 1 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 25 0 23 1 0 1 1 0 8 0
rtentry 112 48 0 4 2 0 2 2 0 8 0
unpcb 120 59 0 48 1 0 1 1 0 8 0
syncache 264 4 0 4 1 1 0 1 0 8 0
tcpqe 32 166 0 166 1 0 1 1 0 8 1
tcpcb 544 31 0 27 1 0 1 1 0 8 0
inpcb 280 204 0 196 2 0 2 2 0 8 1
nd6 48 4 0 0 1 0 1 1 0 8 0
ppxss 1128 3 0 3 1 0 1 1 0 8 1
pffrag 232 3 0 2 1 0 1 1 0 482 0
pffrnode 88 3 0 2 1 0 1 1 0 8 0
pffrent 40 102 0 90 1 0 1 1 0 8 0
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 16 0 0 1 0 1 1 0 8 0
pfstkey 112 16 0 0 1 0 1 1 0 8 0
pfstate 328 16 0 0 2 0 2 2 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 220 0 2 14 0 14 14 0 8 0
art_table 32 221 0 2 2 0 2 2 0 8 0
art_node 16 47 0 7 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0
semapl 112 56 0 46 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1546 0 138 46 0 46 46 0 8 0
ffsino 272 1546 0 138 95 0 95 95 0 8 0
nchpl 144 1867 0 245 61 0 61 61 0 8 0
uvmvnodes 72 1629 0 0 30 0 30 30 0 8 0
vnodes 208 1629 0 0 86 0 86 86 0 8 0
namei 1024 4953 0 4953 1 0 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
scxspl 192 5228 0 5228 8 1 7 7 0 8 7
plimitpl 152 21 0 13 1 0 1 1 0 8 0
sigapl 432 300 0 284 3 0 3 3 0 8 1
futexpl 56 1628 0 1628 1 0 1 1 0 8 1
knotepl 112 60 0 41 1 0 1 1 0 8 0
kqueuepl 104 14 0 12 1 0 1 1 0 8 0
pipelkpl 48 94 0 84 1 0 1 1 0 8 0
pipepl 120 188 0 169 2 0 2 2 0 8 1
fdescpl 496 301 0 284 3 0 3 3 0 8 0
filepl 152 1752 0 1647 6 0 6 6 0 8 1
lockfpl 104 62 0 61 1 0 1 1 0 8 0
lockfspl 48 22 0 21 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 159 0 150 1 0 1 1 0 8 0
zombiepl 144 284 0 284 1 0 1 1 0 8 1
processpl 960 316 0 284 5 0 5 5 0 8 0
procpl 624 492 0 448 4 0 4 4 0 8 0
sockpl 400 293 0 272 4 0 4 4 0 8 1
mcl64k 65536 7 0 0 1 0 1 1 0 8 0
mcl16k 16384 5 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k 2048 163 0 0 20 0 20 20 0 8 0
mtagpl 80 5 0 0 1 0 1 1 0 8 0
mbufpl 256 208 0 0 12 0 12 12 0 8 0
bufpl 280 6369 0 1340 360 0 360 360 0 8 0
anonpl 16 45126 0 28739 71 1 70 70 0 125 4
amapchunkpl 152 1582 0 1443 11 0 11 11 0 158 4
amappl16 192 1239 0 348 45 0 45 45 0 8 0
amappl15 184 124 0 116 1 0 1 1 0 8 0
amappl14 176 27 0 26 1 0 1 1 0 8 0
amappl13 168 36 0 34 1 0 1 1 0 8 0
amappl12 160 7 0 6 1 0 1 1 0 8 0
amappl11 152 56 0 41 1 0 1 1 0 8 0
amappl10 144 12 0 8 1 0 1 1 0 8 0
amappl9 136 612 0 607 1 0 1 1 0 8 0
amappl8 128 128 0 102 2 0 2 2 0 8 0
amappl7 120 104 0 93 1 0 1 1 0 8 0
amappl6 112 58 0 50 1 0 1 1 0 8 0
amappl5 104 139 0 125 1 0 1 1 0 8 0
amappl4 96 592 0 558 1 0 1 1 0 8 0
amappl3 88 113 0 105 1 0 1 1 0 8 0
amappl2 80 1502 0 1414 3 1 2 3 0 8 0
amappl1 72 16729 0 16262 26 13 13 21 0 8 3
amappl 80 746 0 699 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 301 0 284 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 301 0 284 1 0 1 1 0 8 0
vmmpekpl 168 6280 0 6244 2 0 2 2 0 8 0
vmmpepl 168 44174 0 41993 117 5 112 112 0 357 16
vmsppl 368 300 0 284 2 0 2 2 0 8 0
pdppl 4096 609 0 568 6 0 6 6 0 8 0
pvpl 32 153086 0 133399 177 0 177 177 0 265 18
pmappl 232 300 0 284 2 0 2 2 0 8 1
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 171 0 3 5 0 5 5 0 8 0