kernel: protection fault trap, code=0
Stopped at fill_file+0xa36: 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(ffff800000e25c00,fffffd8070b6d3d8,fffffd807a71ca30,3,0,ffff8000216e87e0,71c08cb8ef018968,d39c,ffff8000299f98f8) at fill_file+0xa36 sys/kern/kern_sysctl.c:1307
sysctl_file(ffff80002e652738,4,20000080,ffff80002e652768,ffff8000299f98f8) at sysctl_file+0xe87 sys/kern/kern_sysctl.c:1446
kern_sysctl(ffff80002e652734,5,20000080,ffff80002e652768,0,0,3fead1bd03a4a9bd) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:455
sys_sysctl(ffff8000299f98f8,ffff80002e6527d8,ffff80002e652820) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:250
syscall(ffff80002e6528a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x385b0d75bf0, count: -6
ddb> show registers
rdi 0xffff8000299f98fc
rsi 0xffff8000299f98fc
rbp 0xffff80002e6522c0
rbx 0x11
rdx 0
rcx 0x1
rax 0xeeee85422c68c545
r8 0x2
r9 0
r10 0x4787b8bd20b6cfde
r11 0xf4634d5d5c376213
r12 0xfffffd807a71ca30
r13 0x3
r14 0xffff8000216e87e0
r15 0xffff800000e25c00
rip 0xffffffff81674276 fill_file+0xa36
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002e6521a0
ss 0x10
fill_file+0xa36: movl 0x8(%rax),%eax
ddb> show proc
PROC (syz-executor.2) pid=72716 stat=onproc
flags process=1000<SINGLEEXIT> proc=4080000<SUSPSINGLE,THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4838,0xffff8000299f8090
process=0xffff8000fffeafc0 user=0xffff80002e64d000, vmspace=0xfffffd8069b67c28
estcpu=36, cpticks=19, pctcpu=0.0
user=0, sys=19, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
67717 263144 70907 0 2 0 syz-executor.6
67717 171442 70907 0 3 0x4000080 fsleep syz-executor.6
66468 166292 44480 0 2 0 syz-executor.4
66468 383895 44480 0 3 0x4000080 fsleep syz-executor.4
52424 430219 82022 0 2 0 syz-executor.1
52424 119225 82022 0 2 0x4000000 syz-executor.1
62825 240623 24711 0 2 0 syz-executor.3
62825 449138 24711 0 3 0x4000080 fsleep syz-executor.3
62825 264199 24711 0 3 0x4000080 ttyopn syz-executor.3
7370 455388 46876 0 2 0 syz-executor.7
7370 299546 46876 0 3 0x4000080 fsleep syz-executor.7
*36054 72716 78153 0 7 0x4081000 syz-executor.2
36054 394941 78153 0 3 0x4003000 suspend syz-executor.2
86740 114035 55398 0 2 0 syz-executor.5
86740 228596 55398 0 3 0x4000080 fsleep syz-executor.5
86740 280758 55398 0 2 0x4000000 syz-executor.5
95811 366286 0 0 3 0x14200 acct acct
78153 59203 35751 0 2 0x482 syz-executor.2
28976 220566 1 0 3 0x100083 ttyin getty
55398 7079 35751 0 2 0x482 syz-executor.5
70907 305453 35751 0 2 0x482 syz-executor.6
82022 247935 35751 0 2 0x482 syz-executor.1
24711 323413 35751 0 2 0x482 syz-executor.3
13506 239416 35751 0 2 0x2 syz-executor.0
44480 385865 35751 0 2 0x482 syz-executor.4
46876 330880 35751 0 2 0x482 syz-executor.7
54021 326207 0 0 3 0x14200 bored sosplice
7374 80172 0 0 3 0x14280 nfsidl nfsio
51691 247100 0 0 3 0x14280 nfsidl nfsio
63904 56421 0 0 3 0x14280 nfsidl nfsio
83133 8874 0 0 3 0x14280 nfsidl nfsio
32613 346573 0 0 3 0x14280 nfsidl nfsio
9481 330588 0 0 3 0x14280 nfsidl nfsio
65387 239345 0 0 3 0x14280 nfsidl nfsio
87617 204360 0 0 3 0x14280 nfsidl nfsio
71023 130332 0 0 3 0x14280 nfsidl nfsio
66931 337585 0 0 3 0x14280 nfsidl nfsio
77468 430582 0 0 3 0x14280 nfsidl nfsio
21987 207232 0 0 3 0x14280 nfsidl nfsio
44691 294750 0 0 3 0x14280 nfsidl nfsio
63750 455704 0 0 3 0x14280 nfsidl nfsio
45031 100385 0 0 3 0x14280 nfsidl nfsio
53218 461899 0 0 3 0x14280 nfsidl nfsio
22557 209488 0 0 3 0x14280 nfsidl nfsio
75012 428252 0 0 3 0x14280 nfsidl nfsio
45288 59557 0 0 3 0x14280 nfsidl nfsio
69249 78226 0 0 3 0x14280 nfsidl nfsio
35751 379536 82621 0 3 0x82 thrsleep syz-fuzzer
35751 19795 82621 0 2 0x4000082 syz-fuzzer
35751 372412 82621 0 3 0x4000082 wait syz-fuzzer
35751 207890 82621 0 3 0x4000082 wait syz-fuzzer
35751 438938 82621 0 3 0x4000082 thrsleep syz-fuzzer
35751 78355 82621 0 3 0x4000082 wait syz-fuzzer
35751 516751 82621 0 3 0x4000082 wait syz-fuzzer
35751 433580 82621 0 3 0x4000082 wait syz-fuzzer
35751 196624 82621 0 3 0x4000082 wait syz-fuzzer
35751 438361 82621 0 3 0x4000082 thrsleep syz-fuzzer
35751 327108 82621 0 2 0x4000002 syz-fuzzer
35751 251623 82621 0 3 0x4000082 wait syz-fuzzer
35751 303964 82621 0 3 0x4000082 thrsleep syz-fuzzer
35751 125354 82621 0 3 0x4000082 wait syz-fuzzer
82621 378043 79425 0 3 0x10008a sigsusp ksh
79425 16529 86862 0 2 0x1a sshd
86862 457403 1 0 3 0x88 kqread sshd
55933 188934 62073 73 3 0x1100090 kqread syslogd
62073 281592 1 0 3 0x100082 netio syslogd
51409 197963 1 0 3 0x100080 kqread resolvd
16680 477431 91076 77 3 0x100092 kqread dhcpleased
55393 75637 91076 77 3 0x100092 kqread dhcpleased
91076 299818 1 0 3 0x80 kqread dhcpleased
55516 147590 0 0 3 0x14200 bored smr
56906 190532 0 0 2 0x14200 zerothread
55784 133371 0 0 3 0x14200 aiodoned aiodoned
30238 256270 0 0 3 0x14200 syncer update
37776 409097 0 0 3 0x14200 cleaner cleaner
80184 422366 0 0 3 0x14200 reaper reaper
54195 421652 0 0 3 0x14200 pgdaemon pagedaemon
14398 467813 0 0 3 0x14200 bored viomb
73589 442835 0 0 3 0x40014200 acpi0 acpi0
26496 191597 0 0 3 0x14200 bored softnet
56702 466771 0 0 3 0x14200 bored softnet
74058 104115 0 0 3 0x14200 bored softnet
10825 265958 0 0 3 0x14200 bored softnet
81975 90660 0 0 3 0x14200 bored systqmp
99580 95240 0 0 3 0x14200 bored systq
90432 181346 0 0 2 0x40014200 softclock
64941 93170 0 0 3 0x40014200 idle0
1 421853 0 0 3 0x80082 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 10224 6441K 7198K 78643K 37212 0
pcb 13 18K 20K 78643K 2241 0
rtable 207 16K 16K 78643K 2969 0
ifaddr 73 22K 24K 78643K 753 0
sysctl 2 0K 0K 78643K 4 0
counters 27 17K 17K 78643K 214 0
ioctlops 0 0K 4K 78643K 1036 0
iov 0 0K 28K 78643K 1922 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1760 110K 110K 78643K 14444 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 93 0
VM map 2 1K 1K 78643K 2 0
sem 12 1K 1K 78643K 16 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 17 61K 69K 78643K 7789 0
sigio 0 0K 0K 78643K 157 0
proc 62 59K 75K 78643K 2522 0
subproc 104 6K 7K 78643K 936 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 265 0
in_multi 85 5K 6K 78643K 1028 0
ether_multi 1 0K 0K 78643K 47 0
mrt 1 0K 0K 78643K 16 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 163 731K 731K 78643K 163 0
exec 0 0K 1K 78643K 2316 0
pfkey data 0 0K 0K 78643K 4 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 314 85K 101K 78643K 50726 0
UVM aobj 131 7K 7K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 285 0
NDP 12 0K 1K 78643K 289 0
temp 129 5771K 13962K 78643K 103731 0
kqueue 12 18K 26K 78643K 761 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 120 842 0 838 9 8 1 3 0 8 0
rtentry 112 927 0 840 4 1 3 4 0 8 0
unpcb 144 7010 0 6997 71 68 3 8 0 8 2
syncache 296 66 0 66 14 13 1 1 0 8 1
tcpqe 32 388 167 388 2 2 0 1 0 8 0
tcpcb 776 3809 0 3797 101 91 10 15 0 8 8
arp 88 157 0 143 1 0 1 1 0 8 0
ipq 40 2 0 2 2 2 0 1 0 8 0
ipqe 40 40 0 40 2 2 0 1 0 8 0
inpcb 336 10139 0 10123 150 140 10 21 0 8 8
ip6q 72 3 0 3 1 1 0 1 0 8 0
ip6af 40 6 0 6 1 1 0 1 0 8 0
nd6 48 225 0 204 1 0 1 1 0 8 0
pkpcb 40 26 0 26 6 6 0 1 0 8 0
kcovpl 48 72 0 64 1 0 1 1 0 8 0
ppxss 1160 80 0 80 11 11 0 1 0 8 0
pppxif 1360 55 0 55 5 5 0 1 0 8 0
pfstscr 40 7 0 6 1 0 1 1 0 8 0
pfanchor 1280 267 0 136 17 4 13 17 0 8 0
pfstitem 24 1 0 0 1 0 1 1 0 8 0
pfstkey 128 10 0 9 1 0 1 1 0 8 0
pfstate 352 7 0 6 1 0 1 1 0 8 0
rttmr 136 3 0 3 1 1 0 1 0 8 0
art_heap8 4096 7 0 5 6 4 2 3 0 8 0
art_heap4 256 4101 0 3673 60 32 28 29 0 8 0
art_table 32 4108 0 3678 5 1 4 4 0 8 0
art_node 16 923 0 847 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 8 1 0 1 1 0 8 0
semupl 112 4 0 4 1 1 0 1 0 8 0
semapl 112 10 0 0 1 0 1 1 0 8 0
shmpl 112 136 0 8 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 11823 0 10363 92 0 92 92 0 8 0
ffsino 240 11823 0 10363 87 0 87 87 0 8 0
nchpl 144 22172 0 20534 63 1 62 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 94701 0 94701 4 3 1 3 0 8 1
vmpool 664 111 0 111 11 11 0 1 0 8 0
kstatmem 264 282 0 258 2 0 2 2 0 8 0
scsiplug 72 4 0 4 1 1 0 1 0 8 0
scxspl 216 65625 0 65625 20 18 2 8 0 8 2
plimitpl 152 1390 0 1374 1 0 1 1 0 8 0
sigapl 424 7978 0 7912 8 0 8 8 0 8 0
futexpl 64 87104 0 87099 4 3 1 1 0 8 0
knotepl 120 148865 0 148782 69 58 11 18 0 8 6
kqueuepl 184 1469 0 1460 16 15 1 4 0 8 0
pipepl 288 2375 0 2347 48 44 4 7 0 8 1
fdescpl 432 7939 0 7911 4 0 4 4 0 8 0
filepl 120 69218 0 68973 110 94 16 19 0 8 8
lockfpl 104 3150 0 3148 9 8 1 2 0 8 0
lockfspl 48 840 0 838 1 0 1 1 0 8 0
sessionpl 144 90 0 74 1 0 1 1 0 8 0
pgrppl 48 105 0 89 1 0 1 1 0 8 0
ucredpl 104 8376 0 8365 1 0 1 1 0 8 0
zombiepl 144 7913 0 7912 1 0 1 1 0 8 0
processpl 1008 7978 0 7912 10 1 9 9 0 8 0
procpl 696 19645 0 19556 19 10 9 10 0 8 0
sosppl 168 62 0 62 12 12 0 1 0 8 0
sockpl 456 18037 0 18004 418 405 13 42 0 8 8
mcl64k 65536 405 0 405 14 13 1 1 0 8 1
mcl16k 16384 179 0 179 21 20 1 1 0 8 1
mcl12k 12288 348 0 348 16 15 1 1 0 8 1
mcl9k 9216 78 0 78 20 19 1 1 0 8 1
mcl8k 8192 504 0 504 19 18 1 1 0 8 1
mcl4k 4096 923 0 923 12 11 1 1 0 8 1
mcl2k2 2112 61 0 61 23 22 1 1 0 8 1
mcl2k 2048 93156 0 93074 69 57 12 37 0 8 0
mtagpl 96 1228 0 1013 18 12 6 10 0 8 0
mbufpl 256 232785 0 232379 567 530 37 130 0 8 8
bufpl 288 16714 0 10314 458 0 458 458 0 8 0
anonpl 24 1607875 0 1589305 236 114 122 169 0 188 0
amapchunkpl 152 142382 0 141630 97 65 32 57 0 158 0
amappl16 200 16610 0 15978 140 105 35 46 0 8 0
amappl15 192 9 0 9 2 2 0 1 0 8 0
amappl14 184 441 0 427 2 1 1 2 0 8 0
amappl13 176 12 0 12 1 1 0 1 0 8 0
amappl12 168 1161 0 1157 1 0 1 1 0 8 0
amappl11 160 45 0 35 1 0 1 1 0 8 0
amappl10 152 105 0 93 1 0 1 1 0 8 0
amappl9 144 1008 0 1008 14 14 0 1 0 8 0
amappl8 136 372 0 310 3 0 3 3 0 8 0
amappl7 128 301 0 276 2 0 2 2 0 8 0
amappl6 120 484 0 474 2 1 1 2 0 8 0
amappl5 112 489 0 483 1 0 1 1 0 8 0
amappl4 104 1338 0 1314 2 1 1 2 0 8 0
amappl3 96 21857 0 21797 2 0 2 2 0 8 0
amappl2 88 8856 0 8785 3 1 2 3 0 8 0
amappl1 80 179686 0 178934 33 17 16 26 0 8 0
amappl 88 49488 0 49297 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 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 8050 0 8022 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 8050 0 8022 1 0 1 1 0 8 0
vmmpekpl 168 65891 0 65832 4 0 4 4 0 8 0
vmmpepl 168 756236 0 753349 304 170 134 162 0 357 0
vmsppl 344 8049 0 8022 3 0 3 3 0 8 0
rwobjpl 24 196315 0 188481 51 2 49 49 0 8 0
pdppl 4096 16106 0 16044 666 602 64 66 0 8 2
pvpl 32 3230019 0 3205575 563 358 205 360 0 265 0
pmappl 216 8049 0 8022 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 2284 0 1481 27 2 25 26 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
fill_file(ffff800000e25c00,fffffd8070b6d3d8,fffffd807a71ca30,3,0,ffff8000216e87e0,71c08cb8ef018968,d39c,ffff8000299f98f8) at fill_file+0xa36 sys/kern/kern_sysctl.c:1307
sysctl_file(ffff80002e652738,4,20000080,ffff80002e652768,ffff8000299f98f8) at sysctl_file+0xe87 sys/kern/kern_sysctl.c:1446
kern_sysctl(ffff80002e652734,5,20000080,ffff80002e652768,0,0,3fead1bd03a4a9bd) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:455
sys_sysctl(ffff8000299f98f8,ffff80002e6527d8,ffff80002e652820) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:250
syscall(ffff80002e6528a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x385b0d75bf0, count: -6
ddb> machine ddbcpu 1
No such command
ddb> trace
fill_file(ffff800000e25c00,fffffd8070b6d3d8,fffffd807a71ca30,3,0,ffff8000216e87e0,71c08cb8ef018968,d39c,ffff8000299f98f8) at fill_file+0xa36 sys/kern/kern_sysctl.c:1307
sysctl_file(ffff80002e652738,4,20000080,ffff80002e652768,ffff8000299f98f8) at sysctl_file+0xe87 sys/kern/kern_sysctl.c:1446
kern_sysctl(ffff80002e652734,5,20000080,ffff80002e652768,0,0,3fead1bd03a4a9bd) at kern_sysctl+0x107 sys/kern/kern_sysctl.c:455
sys_sysctl(ffff8000299f98f8,ffff80002e6527d8,ffff80002e652820) at sys_sysctl+0x209 sys/kern/kern_sysctl.c:250
syscall(ffff80002e6528a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x385b0d75bf0, count: -6