uvm_fault(0xfffffd806bc0a880, 0x70, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at syscall+0x558: movq %rax,0x70(%rbx)
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xfffffd806bc0a880, 0x70, 0, 2) -> e
syscall(ffff80001d3f6060) at syscall+0x558 sys/arch/amd64/amd64/trap.c:574
end trace frame: 0xffff80001d3f60e0, count: 0
ddb> trace
syscall(ffff80001d3f6060) at syscall+0x558 sys/arch/amd64/amd64/trap.c:574
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc002b47e98, count: -2
ddb> show registers
rdi 0
rsi 0xffffffff824505f0 __sancov_gen_cov_switch_values.48
rbp 0xffff80001d3f6050
rbx 0
rdx 0x3
rcx 0
rax 0x1
r8 0x7f7fffffc000
r9 0x5
r10 0
r11 0x54656fde8f8e3471
r12 0x48
r13 0x480
r14 0xffff80001d34a388
r15 0
rip 0xffffffff8123b058 syscall+0x558
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80001d3f5f90
ss 0x10
syscall+0x558: movq %rax,0x70(%rbx)
ddb> show proc
PROC (syz-fuzzer) pid=337722 stat=onproc
flags process=2<EXEC> proc=4000000<THREAD>
pri=24, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff80001d3494e8,0xffff80001d34a608
process=0xffff80001d39e000 user=0xffff80001d3f1000, vmspace=0xfffffd806bc0a880
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
65347 325991 0 0 3 0x14200 acct acct
29376 317001 0 0 3 0x14200 bored sosplice
31065 365507 69543 0 2 0x482 syz-executor.0
73498 403882 69543 0 2 0x2 syz-executor.1
69543 184653 16291 0 3 0x82 thrsleep syz-fuzzer
69543 323335 16291 0 3 0x4000082 thrsleep syz-fuzzer
69543 317037 16291 0 3 0x4000082 thrsleep syz-fuzzer
69543 142986 16291 0 3 0x4000082 thrsleep syz-fuzzer
69543 209689 16291 0 3 0x4000082 thrsleep syz-fuzzer
69543 367548 16291 0 3 0x4000082 thrsleep syz-fuzzer
69543 455133 16291 0 3 0x4000082 thrsleep syz-fuzzer
*69543 337722 16291 0 7 0x4000002 syz-fuzzer
16291 64 68017 0 3 0x10008a pause ksh
68017 505298 92147 0 3 0x92 select sshd
81566 92057 1 0 3 0x100083 ttyin getty
92147 215436 1 0 3 0x80 select sshd
87847 389841 70210 73 3 0x100090 kqread syslogd
70210 401567 1 0 3 0x100082 netio syslogd
60398 235717 1 77 3 0x100090 poll dhclient
18023 387813 1 0 3 0x80 poll dhclient
75135 302985 0 0 3 0x14200 pgzero zerothread
94843 67128 0 0 3 0x14200 aiodoned aiodoned
87879 257424 0 0 3 0x14200 syncer update
18987 420387 0 0 3 0x14200 cleaner cleaner
82659 223158 0 0 3 0x14200 reaper reaper
75253 104768 0 0 3 0x14200 pgdaemon pagedaemon
25795 64780 0 0 3 0x14200 bored crynlk
46600 13449 0 0 3 0x14200 bored crypto
16905 261804 0 0 3 0x40014200 acpi0 acpi0
43500 165700 0 0 3 0x14200 bored softnet
43861 41927 0 0 3 0x14200 bored systqmp
81665 82253 0 0 3 0x14200 bored systq
61 18118 0 0 3 0x40014200 bored softclock
71222 21386 0 0 3 0x40014200 idle0
58754 185490 0 0 3 0x14200 bored smr
1 394465 0 0 3 0x82 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 9475 6455K 6590K 78643K 10808 0
pcb 13 8K 8K 78643K 29 0
rtable 118 4K 4K 78643K 224 0
ifaddr 53 12K 12K 78643K 69 0
counters 21 16K 16K 78643K 23 0
ioctlops 0 0K 2K 78643K 25 0
iov 0 0K 12K 78643K 16 0
mount 1 1K 1K 78643K 1 0
vnodes 1214 76K 77K 78643K 1299 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 0K 0K 78643K 2 0
sem 12 0K 0K 78643K 150 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1794 195K 288K 78643K 12646 0
file desc 4 9K 25K 78643K 144 0
proc 49 38K 63K 78643K 382 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 19 0
in_multi 47 2K 3K 78643K 52 0
ether_multi 1 0K 0K 78643K 2 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 209 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 102 21K 37K 78643K 1215 0
UVM aobj 56 2K 2K 78643K 58 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 9 0
NDP 7 0K 0K 78643K 13 0
temp 74 3004K 3068K 78643K 4544 0
kqueue 3 4K 14K 78643K 23 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 7 0 0 1 0 1 1 0 8 0
rtpcb 80 23 0 21 1 0 1 1 0 8 0
rtentry 112 50 0 1 2 0 2 2 0 8 0
unpcb 120 105 0 97 1 0 1 1 0 8 0
syncache 264 6 0 6 2 1 1 1 0 8 1
tcpqe 32 64 0 64 1 1 0 1 0 8 0
tcpcb 544 58 0 54 2 0 2 2 0 8 1
ipq 40 4 0 4 1 0 1 1 0 8 1
ipqe 40 180 0 180 1 0 1 1 0 8 1
inpcb 280 283 0 275 2 0 2 2 0 8 1
nd6 48 6 0 0 1 0 1 1 0 8 0
ppxss 1128 1 0 1 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 237 0 0 15 0 15 15 0 8 0
art_table 32 238 0 0 2 0 2 2 0 8 0
art_node 16 49 0 4 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 148 0 138 1 0 1 1 0 8 0
shmpl 112 56 0 2 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1616 0 218 46 0 46 46 0 8 0
ffsino 240 1616 0 218 83 0 83 83 0 8 0
nchpl 144 2014 0 404 60 0 60 60 0 8 0
uvmvnodes 72 1710 0 0 32 0 32 32 0 8 0
vnodes 208 1710 0 0 90 0 90 90 0 8 0
namei 1024 5268 0 5268 1 0 1 1 0 8 1
scsiplug 64 1 0 1 1 1 0 1 0 8 0
scxspl 192 6160 0 6160 1 0 1 1 0 8 1
plimitpl 152 29 0 22 1 0 1 1 0 8 0
sigapl 432 315 0 303 2 0 2 2 0 8 0
futexpl 56 4580 0 4580 1 0 1 1 0 8 1
knotepl 112 82 0 63 1 0 1 1 0 8 0
kqueuepl 104 38 0 36 1 0 1 1 0 8 0
pipelkpl 16 103 0 93 1 0 1 1 0 8 0
pipepl 120 206 0 187 2 1 1 2 0 8 0
fdescpl 432 316 0 303 2 0 2 2 0 8 0
filepl 120 2116 0 2021 4 0 4 4 0 8 1
lockfpl 104 42 0 41 1 0 1 1 0 8 0
lockfspl 48 18 0 17 1 0 1 1 0 8 0
sessionpl 112 17 0 7 1 0 1 1 0 8 0
pgrppl 48 19 0 9 1 0 1 1 0 8 0
ucredpl 96 249 0 242 1 0 1 1 0 8 0
zombiepl 144 303 0 302 1 0 1 1 0 8 0
processpl 896 332 0 302 4 0 4 4 0 8 0
procpl 624 490 0 453 4 0 4 4 0 8 0
sosppl 128 6 0 6 1 0 1 1 0 8 1
sockpl 400 411 0 394 5 0 5 5 0 8 3
mcl64k 65536 26 0 26 1 0 1 1 0 8 1
mcl16k 16384 3 0 3 2 1 1 1 0 8 1
mcl12k 12288 4 0 4 1 0 1 1 0 8 1
mcl9k 9216 2 0 2 1 0 1 1 0 8 1
mcl8k 8192 7 0 7 1 0 1 1 0 8 1
mcl4k 4096 36 0 36 2 1 1 1 0 8 1
mcl2k2 2112 1 0 1 1 1 0 1 0 8 0
mcl2k 2048 63928 0 63879 15 5 10 13 0 8 3
mtagpl 80 18 0 4 2 1 1 1 0 8 0
mbufpl 256 103104 0 102982 23 5 18 22 0 8 8
bufpl 280 4720 0 181 325 0 325 325 0 8 0
anonpl 16 48304 0 32264 77 1 76 76 0 107 11
amapchunkpl 152 1776 0 1648 20 1 19 19 0 158 13
amappl16 192 1699 0 820 53 4 49 53 0 8 4
amappl15 184 61 0 55 1 0 1 1 0 8 0
amappl14 176 79 0 76 1 0 1 1 0 8 0
amappl12 160 11 0 11 1 1 0 1 0 8 0
amappl11 152 48 0 37 1 0 1 1 0 8 0
amappl10 144 74 0 71 1 0 1 1 0 8 0
amappl9 136 560 0 557 1 0 1 1 0 8 0
amappl8 128 114 0 93 1 0 1 1 0 8 0
amappl7 120 150 0 139 1 0 1 1 0 8 0
amappl6 112 54 0 49 1 0 1 1 0 8 0
amappl5 104 142 0 132 1 0 1 1 0 8 0
amappl4 96 534 0 508 1 0 1 1 0 8 0
amappl3 88 172 0 164 1 0 1 1 0 8 0
amappl2 80 1749 0 1688 3 1 2 3 0 8 0
amappl1 72 15361 0 14954 26 17 9 20 0 8 0
amappl 80 714 0 676 1 0 1 1 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 57 0 2 1 0 1 1 0 8 0
uaddrrnd 24 316 0 303 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 316 0 303 1 0 1 1 0 8 0
vmmpekpl 168 6202 0 6176 2 0 2 2 0 8 0
vmmpepl 168 45589 0 43729 113 7 106 108 0 357 19
vmsppl 272 315 0 303 2 1 1 2 0 8 0
pdppl 4096 638 0 606 6 1 5 6 0 8 0
pvpl 32 154593 0 135594 180 0 180 180 0 265 25
pmappl 200 315 0 303 1 0 1 1 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 168 0 16 5 0 5 5 0 8 0