kernel: protection fault trap, code=0
Stopped at fill_file+0xa26: movl 0x8(%rax),%eax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
the kernel did not panic
ddb> trace
fill_file(ffff800000c76800,fffffd806777b978,fffffd806eff86c8,3,0,ffff8000217c2be8,e4ff9b7f1ef006f9,ff70,3) at fill_file+0xa26 sys/kern/kern_sysctl.c:1298
sysctl_file(ffff80002e914fd8,4,20000080,ffff80002e915008,ffff80002e909a50) at sysctl_file+0x62d sys/kern/kern_sysctl.c:1466
kern_sysctl(ffff80002e914fd4,5,20000080,ffff80002e915008,0,0,5e9d0e3203b28a80) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:447
sys_sysctl(ffff80002e909a50,ffff80002e915078,ffff80002e9150d0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:248
syscall(ffff80002e915140) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4abacf16a20, count: -6
ddb> show registers
rdi 0xffff80002e909a54
rsi 0xffff80002e909a54
rbp 0xffff80002e914b60
rbx 0x11
rdx 0
rcx 0x1
rax 0x825733dafda48dbc
r8 0
r9 0
r10 0xe56dae3a06feccc9
r11 0x22cac25e9ed4c0d7
r12 0xfffffd806eff86c8
r13 0x3
r14 0xffff8000217c2be8
r15 0xffff800000c76800
rip 0xffffffff81b97596 fill_file+0xa26
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002e914a40
ss 0x10
fill_file+0xa26: movl 0x8(%rax),%eax
ddb> show proc
PROC (syz-executor.3) pid=257388 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=83, nice=20
forw=0xffffffffffffffff, list=0xffff800021703a40,0xffff80002e908fe0
process=0xffff8000217c37a0 user=0xffff80002e910000, vmspace=0xfffffd8069b15008
estcpu=33, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
65962 380750 93534 0 2 0 syz-executor.7
65962 468473 93534 0 2 0x4000000 syz-executor.7
74207 169996 28009 0 2 0 syz-executor.0
74207 327174 28009 0 2 0x4000000 syz-executor.0
66294 12975 38047 0 3 0x80 nanoslp syz-executor.5
66294 93234 38047 0 3 0x4000080 piperd syz-executor.5
66294 513113 38047 0 3 0x4000080 fsleep syz-executor.5
36019 101905 45393 0 3 0x80 nanoslp syz-executor.1
36019 501847 45393 0 3 0x4000080 fsleep syz-executor.1
36019 365175 45393 0 2 0x4000000 syz-executor.1
78243 163024 544 0 2 0 syz-executor.2
78243 456741 544 0 2 0x4000000 syz-executor.2
49075 94673 29349 0 2 0 syz-executor.4
49075 451660 29349 0 2 0x4000000 syz-executor.4
80686 446668 42637 0 3 0x80 nanoslp syz-executor.3
*80686 257388 42637 0 7 0x4000000 syz-executor.3
88350 214773 82214 0 2 0 syz-executor.6
88350 521060 82214 0 3 0x4000080 fsleep syz-executor.6
88350 341918 82214 0 3 0x4000080 fsleep syz-executor.6
82214 442763 60019 0 3 0x82 nanoslp syz-executor.6
544 390700 60019 0 3 0x82 nanoslp syz-executor.2
58306 295151 0 0 3 0x14280 nfsidl nfsio
78869 178179 0 0 3 0x14280 nfsidl nfsio
99649 25124 0 0 3 0x14280 nfsidl nfsio
92984 224615 0 0 3 0x14280 nfsidl nfsio
70337 215888 0 0 3 0x14280 nfsidl nfsio
64233 14776 0 0 3 0x14280 nfsidl nfsio
30037 384221 0 0 3 0x14280 nfsidl nfsio
17833 111900 0 0 3 0x14280 nfsidl nfsio
64359 50968 0 0 3 0x14280 nfsidl nfsio
78072 407449 0 0 3 0x14280 nfsidl nfsio
7120 505232 0 0 3 0x14280 nfsidl nfsio
64152 148501 0 0 3 0x14280 nfsidl nfsio
44235 412867 0 0 3 0x14280 nfsidl nfsio
43429 41847 0 0 3 0x14280 nfsidl nfsio
7734 45994 0 0 3 0x14280 nfsidl nfsio
26673 140883 0 0 3 0x14280 nfsidl nfsio
59607 358014 0 0 3 0x14280 nfsidl nfsio
46245 315818 0 0 3 0x14280 nfsidl nfsio
57765 118036 0 0 3 0x14280 nfsidl nfsio
2761 486637 0 0 3 0x14280 nfsidl nfsio
70726 99140 0 0 3 0x14200 bored sosplice
50208 102140 0 0 3 0x14200 acct acct
38047 375592 60019 0 3 0x82 nanoslp syz-executor.5
29349 240828 60019 0 3 0x82 nanoslp syz-executor.4
93534 9523 60019 0 3 0x82 nanoslp syz-executor.7
45393 39234 60019 0 3 0x82 nanoslp syz-executor.1
42637 325677 60019 0 3 0x82 nanoslp syz-executor.3
28009 357419 60019 0 3 0x82 nanoslp syz-executor.0
60019 365002 32492 0 3 0x82 thrsleep syz-fuzzer
60019 307391 32492 0 3 0x4000082 nanoslp syz-fuzzer
60019 488114 32492 0 3 0x4000082 kqread syz-fuzzer
60019 53846 32492 0 3 0x4000082 wait syz-fuzzer
60019 65114 32492 0 3 0x4000082 wait syz-fuzzer
60019 75387 32492 0 3 0x4000082 thrsleep syz-fuzzer
60019 345138 32492 0 3 0x4000082 wait syz-fuzzer
60019 97600 32492 0 3 0x4000082 wait syz-fuzzer
60019 509883 32492 0 3 0x4000082 thrsleep syz-fuzzer
60019 183379 32492 0 3 0x4000082 wait syz-fuzzer
60019 237880 32492 0 3 0x4000082 wait syz-fuzzer
60019 479006 32492 0 3 0x4000082 thrsleep syz-fuzzer
60019 7789 32492 0 3 0x4000082 wait syz-fuzzer
60019 120946 32492 0 3 0x4000082 wait syz-fuzzer
32492 362355 40604 0 3 0x10008a sigsusp ksh
40604 40909 70567 0 2 0x1a sshd
86559 305476 1 0 3 0x100083 ttyin getty
70567 63142 1 0 3 0x88 kqread sshd
28973 222727 90142 73 3 0x1100090 kqread syslogd
90142 445371 1 0 3 0x100082 netio syslogd
25116 133164 1 0 3 0x100080 kqread resolvd
49415 5549 70598 77 3 0x100092 kqread dhcpleased
29143 70927 70598 77 3 0x100092 kqread dhcpleased
70598 347878 1 0 3 0x80 kqread dhcpleased
52963 510052 0 0 3 0x14200 bored smr
2705 60194 0 0 2 0x14200 zerothread
44018 6493 0 0 3 0x14200 aiodoned aiodoned
70042 126764 0 0 3 0x14200 syncer update
47529 383021 0 0 3 0x14200 cleaner cleaner
89367 365737 0 0 3 0x14200 reaper reaper
73361 260286 0 0 3 0x14200 pgdaemon pagedaemon
69806 346930 0 0 3 0x14200 bored viomb
84784 480112 0 0 3 0x40014200 acpi0 acpi0
33633 275157 0 0 3 0x14200 bored softnet
34722 449394 0 0 3 0x14200 bored softnet
20526 258732 0 0 3 0x14200 bored softnet
70521 376279 0 0 3 0x14200 bored softnet
84466 200012 0 0 3 0x14200 bored systqmp
14330 92357 0 0 3 0x14200 bored systq
89322 318484 0 0 3 0x40014200 bored softclock
35607 242077 0 0 3 0x40014200 idle0
1 20793 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 10174 6406K 6658K 78643K 12119 0
pcb 13 10K 11K 78643K 168 0
rtable 169 15K 16K 78643K 624 0
ifaddr 76 17K 18K 78643K 300 0
sysctl 2 0K 0K 78643K 2 0
counters 23 16K 17K 78643K 74 0
ioctlops 0 0K 4K 78643K 278 0
iov 0 0K 16K 78643K 76 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1326 83K 83K 78643K 1640 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 0K 0K 78643K 2 0
sem 12 1K 1K 78643K 124 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 18 65K 77K 78643K 1098 0
sigio 0 0K 0K 78643K 20 0
proc 58 59K 75K 78643K 594 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 30 0
in_multi 55 3K 6K 78643K 165 0
ether_multi 1 0K 0K 78643K 1 0
mrt 0 0K 0K 78643K 6 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 1K 78643K 506 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 279 132K 137K 78643K 8284 0
UVM aobj 18 2K 2K 78643K 18 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 20 0
NDP 9 0K 2K 78643K 69 0
temp 117 4730K 4796K 78643K 8465 0
kqueue 12 18K 24K 78643K 99 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
rtpcb 120 89 0 84 1 0 1 1 0 8 0
rtentry 112 168 0 100 4 0 4 4 0 8 0
unpcb 144 1322 0 1305 14 8 6 6 0 8 5
syncache 296 5 0 5 2 2 0 1 0 8 0
tcpqe 32 48 0 48 3 3 0 1 0 8 0
tcpcb 768 505 0 501 19 11 8 8 0 8 7
arp 88 24 0 14 1 0 1 1 0 8 0
ipq 40 8 0 8 2 2 0 1 0 8 0
ipqe 40 56 0 56 2 2 0 1 0 8 0
inpcb 336 1230 0 1221 25 18 7 12 0 8 6
nd6 48 34 0 22 1 0 1 1 0 8 0
pkpcb 40 3 0 3 2 2 0 1 0 8 0
kcovpl 48 11 0 3 1 0 1 1 0 8 0
ppxss 1160 29 0 29 4 3 1 1 0 8 1
pppxif 1608 9 0 9 2 2 0 1 0 8 0
pfrktable 1344 29 0 26 3 2 1 1 0 8 0
pfanchor 1280 264 0 71 18 1 17 17 0 8 0
pftag 88 3 0 2 1 0 1 1 0 8 0
pfrule 1360 27 0 22 3 2 1 1 0 8 0
rttmr 136 3 0 3 2 2 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 738 0 452 29 8 21 29 0 8 1
art_table 32 739 0 452 4 0 4 4 0 8 0
art_node 16 167 0 106 1 0 1 1 0 8 0
sysvmsgpl 40 39 0 8 1 0 1 1 0 8 0
semapl 112 122 0 112 1 0 1 1 0 8 0
shmpl 112 15 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 2847 0 1421 90 0 90 90 0 8 0
ffsino 240 2847 0 1421 85 0 85 85 0 8 0
nchpl 144 4421 0 2785 63 0 63 63 0 8 0
uvmvnodes 80 3169 0 0 65 0 65 65 0 8 0
vnodes 216 3169 0 0 177 0 177 177 0 8 0
namei 1024 15901 0 15901 4 3 1 2 0 8 1
vcpupl 2048 4 0 0 1 0 1 1 0 8 0
vmpool 536 4 0 0 1 0 1 1 0 8 0
pfiaddrpl 120 10 0 8 2 1 1 1 0 8 0
kstatmem 264 92 0 74 2 0 2 2 0 8 0
scsiplug 72 6 0 6 1 0 1 1 0 8 1
scxspl 216 21582 0 21582 9 8 1 8 0 8 1
plimitpl 152 254 0 239 1 0 1 1 0 8 0
sigapl 424 1404 0 1337 8 0 8 8 0 8 0
futexpl 64 11620 0 11616 4 3 1 1 0 8 0
knotepl 120 30652 0 30571 10 4 6 7 0 8 2
kqueuepl 184 301 0 293 4 0 4 4 0 8 3
pipepl 288 315 0 286 6 0 6 6 0 8 3
fdescpl 432 1366 0 1337 7 3 4 4 0 8 0
filepl 120 9531 0 9281 25 10 15 15 0 8 6
lockfpl 104 522 0 518 3 2 1 2 0 8 0
lockfspl 48 131 0 127 1 0 1 1 0 8 0
sessionpl 144 26 0 10 1 0 1 1 0 8 0
pgrppl 48 37 0 21 1 0 1 1 0 8 0
ucredpl 104 933 0 923 1 0 1 1 0 8 0
zombiepl 144 1337 0 1337 1 0 1 1 0 8 1
processpl 1000 1404 0 1337 11 2 9 9 0 8 0
procpl 672 3032 0 2941 11 2 9 9 0 8 1
sosppl 168 12 0 12 2 1 1 1 0 8 1
sockpl 456 2646 0 2613 82 71 11 24 0 8 6
mcl64k 65536 18 0 18 3 3 0 1 0 8 0
mcl16k 16384 15 0 15 2 1 1 1 0 8 1
mcl12k 12288 35 0 35 4 3 1 1 0 8 1
mcl9k 9216 23 0 23 6 6 0 1 0 8 0
mcl8k 8192 143 0 143 5 4 1 1 0 8 1
mcl4k 4096 162 0 162 4 3 1 1 0 8 1
mcl2k2 2112 7 0 7 3 2 1 1 0 8 1
mcl2k 2048 78453 0 78390 14 5 9 12 0 8 0
mtagpl 96 146 0 99 4 2 2 3 0 8 0
mbufpl 256 134742 0 134470 69 47 22 65 0 8 1
bufpl 288 6266 0 136 438 0 438 438 0 8 0
anonpl 24 299148 0 281989 188 29 159 172 0 188 51
amapchunkpl 152 25233 0 24514 73 25 48 57 0 158 20
amappl16 200 2526 0 1972 47 12 35 39 0 8 5
amappl15 192 4 0 3 1 0 1 1 0 8 0
amappl14 184 160 0 147 2 1 1 2 0 8 0
amappl12 168 428 0 424 1 0 1 1 0 8 0
amappl11 160 40 0 30 1 0 1 1 0 8 0
amappl10 152 27 0 17 1 0 1 1 0 8 0
amappl9 144 956 0 954 1 0 1 1 0 8 0
amappl8 136 141 0 91 2 0 2 2 0 8 0
amappl7 128 40 0 27 1 0 1 1 0 8 0
amappl6 120 273 0 261 2 1 1 2 0 8 0
amappl5 112 89 0 79 1 0 1 1 0 8 0
amappl4 104 479 0 456 1 0 1 1 0 8 0
amappl3 96 3372 0 3313 2 0 2 2 0 8 0
amappl2 88 1755 0 1685 3 1 2 3 0 8 0
amappl1 80 32682 0 31928 23 7 16 21 0 8 0
amappl 88 7903 0 7713 5 0 5 5 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 17 0 0 1 0 1 1 0 8 0
uaddrrnd 24 1370 0 1337 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1370 0 1337 1 0 1 1 0 8 0
vmmpekpl 168 14700 0 14645 3 0 3 3 0 8 0
vmmpepl 168 129499 0 126726 154 27 127 129 0 357 6
vmsppl 272 1369 0 1337 5 2 3 3 0 8 0
rwobjpl 24 37653 0 32782 30 0 30 30 0 8 0
pdppl 4096 2746 0 2678 174 106 68 70 0 8 0
pvpl 32 667181 0 644204 348 72 276 305 0 265 84
pmappl 216 1369 0 1337 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 964 0 204 22 0 22 22 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
fill_file(ffff800000c76800,fffffd806777b978,fffffd806eff86c8,3,0,ffff8000217c2be8,e4ff9b7f1ef006f9,ff70,3) at fill_file+0xa26 sys/kern/kern_sysctl.c:1298
sysctl_file(ffff80002e914fd8,4,20000080,ffff80002e915008,ffff80002e909a50) at sysctl_file+0x62d sys/kern/kern_sysctl.c:1466
kern_sysctl(ffff80002e914fd4,5,20000080,ffff80002e915008,0,0,5e9d0e3203b28a80) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:447
sys_sysctl(ffff80002e909a50,ffff80002e915078,ffff80002e9150d0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:248
syscall(ffff80002e915140) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4abacf16a20, count: -6
ddb> machine ddbcpu 1
No such command
ddb> trace
fill_file(ffff800000c76800,fffffd806777b978,fffffd806eff86c8,3,0,ffff8000217c2be8,e4ff9b7f1ef006f9,ff70,3) at fill_file+0xa26 sys/kern/kern_sysctl.c:1298
sysctl_file(ffff80002e914fd8,4,20000080,ffff80002e915008,ffff80002e909a50) at sysctl_file+0x62d sys/kern/kern_sysctl.c:1466
kern_sysctl(ffff80002e914fd4,5,20000080,ffff80002e915008,0,0,5e9d0e3203b28a80) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:447
sys_sysctl(ffff80002e909a50,ffff80002e915078,ffff80002e9150d0) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:248
syscall(ffff80002e915140) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4abacf16a20, count: -6