uvm_fault(0xfffffd80744333f0, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ffs_write+0x170: movq 0x18(%rax),%r15
TID PID UID PRFLAGS PFLAGS CPU COMMAND
ffs_write(ffff80003c480dd0) at ffs_write+0x170 sys/ufs/ffs/ffs_vnops.c:307
VOP_WRITE(fffffd8061fda6c0,ffff80003c480e68,23,fffffd80097fd000) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8061fda6c0,ffff80003c480fa0,40,0,1,8ff0e703785b9fa4,0,1018,0) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
acct_process(ffff8000fffef240) at acct_process+0x7a2 sys/kern/kern_acct.c:245
exit1(ffff8000fffef240,0,0,1) at exit1+0x5c4 sys/kern/kern_exit.c:228
sys_exit(ffff8000fffef240,ffff80003c4811e0,ffff80003c481130) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c4811e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4811e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b3fbc9a7540, count: 7
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xfffffd80744333f0, 0x18, 0, 1) -> e
ddb{0}> trace
ffs_write(ffff80003c480dd0) at ffs_write+0x170 sys/ufs/ffs/ffs_vnops.c:307
VOP_WRITE(fffffd8061fda6c0,ffff80003c480e68,23,fffffd80097fd000) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8061fda6c0,ffff80003c480fa0,40,0,1,8ff0e703785b9fa4,0,1018,0) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
acct_process(ffff8000fffef240) at acct_process+0x7a2 sys/kern/kern_acct.c:245
exit1(ffff8000fffef240,0,0,1) at exit1+0x5c4 sys/kern/kern_exit.c:228
sys_exit(ffff8000fffef240,ffff80003c4811e0,ffff80003c481130) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c4811e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4811e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b3fbc9a7540, count: -8
ddb{0}> show registers
rdi 0
rsi 0x2
rbp 0xffff80003c480dc0
rbx 0x23
rdx 0
rcx 0xffff8000fffef240
rax 0
r8 0
r9 0x1
r10 0xf506197080393b5b
r11 0xc848108b1b54e3d5
r12 0xfffffd806ca9a298
r13 0xffff80003c480e68
r14 0x40
r15 0x1
rip 0xffffffff8210bd60 ffs_write+0x170
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c480d00
ss 0x10
ffs_write+0x170: movq 0x18(%rax),%r15
ddb{0}> show proc
PROC (syz-executor) tid=130943 pid=12461 tcnt=0 stat=onproc
flags process=1018<EXITING,SUGID,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=83, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff8000fffef240 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff8000368014f8,0xffff800037c09258
process=0xffff80003c4689c8 user=0xffff80003c47c000, vmspace=0xfffffd80744333f0
estcpu=33, cpticks=4, pctcpu=0.3, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
23431 439322 64100 0 2 0 syz-executor
23431 326218 64100 0 3 0x4000080 bell syz-executor
55396 466102 43030 60929 2 0x10 syz-executor
55396 507193 43030 60929 3 0x4000090 kqpoll syz-executor
73008 54831 90731 0 2 0 syz-executor
96198 253814 23166 0 3 0x80 nanoslp syz-executor
96198 178433 23166 0 2 0x4000000 syz-executor
96198 143479 23166 0 3 0x4000080 fsleep syz-executor
42992 307892 87237 0 2 0xc82 syz-executor
2012 423507 0 0 3 0x14200 acct acct
43030 440422 87237 0 3 0x82 nanoslp syz-executor
62157 377809 0 0 3 0x14280 nfsidl nfsio
42270 144501 0 0 3 0x14280 nfsidl nfsio
46504 402753 0 0 3 0x14280 nfsidl nfsio
73380 148148 0 0 3 0x14280 nfsidl nfsio
48831 11977 0 0 3 0x14280 nfsidl nfsio
53232 452626 0 0 3 0x14280 nfsidl nfsio
57450 385560 0 0 3 0x14280 nfsidl nfsio
25330 501429 0 0 3 0x14280 nfsidl nfsio
66595 101610 0 0 3 0x14280 nfsidl nfsio
36143 76728 0 0 3 0x14280 nfsidl nfsio
99134 298218 0 0 3 0x14280 nfsidl nfsio
1476 106209 0 0 3 0x14280 nfsidl nfsio
51622 193460 0 0 3 0x14280 nfsidl nfsio
8119 83995 0 0 3 0x14280 nfsidl nfsio
64100 329909 87237 0 3 0x82 nanoslp syz-executor
60604 346436 0 0 3 0x14280 nfsidl nfsio
98038 136195 0 0 3 0x14280 nfsidl nfsio
13284 520012 0 0 3 0x14280 nfsidl nfsio
77028 501353 0 0 3 0x14280 nfsidl nfsio
22955 357135 87237 0 2 0x2 syz-executor
98826 48569 87237 0 2 0xc82 syz-executor
90731 40238 87237 0 2 0xc82 syz-executor
23166 447532 87237 0 2 0xc82 syz-executor
93872 135601 87237 0 2 0xc82 syz-executor
87237 156787 52058 0 3 0x82 kqread syz-executor
52058 523360 25879 0 3 0x10008a sigsusp ksh
25879 89354 15106 0 3 0x98 kqread sshd-session
15106 423275 83097 0 3 0x92 kqread sshd-session
59863 110828 1 0 3 0x100083 ttyopn getty
83097 519050 1 0 3 0x88 kqread sshd
34825 129003 51864 74 3 0x1100092 bpf pflogd
51864 196938 1 0 3 0x80 sbwait pflogd
72993 315732 77082 73 3 0x1100090 kqread syslogd
77082 225471 1 0 3 0x100082 sbwait syslogd
74675 314332 1 0 3 0x100080 kqread resolvd
25122 67608 6360 77 3 0x100092 kqread dhcpleased
28085 325290 6360 77 3 0x100092 kqread dhcpleased
6360 94490 1 0 3 0x80 kqread dhcpleased
77909 184916 0 0 3 0x14200 bored smr
75263 190312 0 0 2 0x14200 zerothread
26670 83525 0 0 3 0x14200 aiodoned aiodoned
21410 180050 0 0 3 0x14200 syncer update
84646 498700 0 0 3 0x14200 cleaner cleaner
53085 71138 0 0 3 0x14200 reaper reaper
98516 204476 0 0 3 0x14200 pgdaemon pagedaemon
73117 129016 0 0 3 0x14200 bored viomb
10637 75051 0 0 3 0x40014200 acpi0 acpi0
69794 480336 0 0 7 0x40014200 idle1
19014 340610 0 0 3 0x14200 bored softnet1
42163 132542 0 0 3 0x14200 bored softnet0
29104 356798 0 0 3 0x14200 bored systqmp
61440 168719 0 0 3 0x14200 bored systq
70507 346511 0 0 3 0x14200 tmoslp softclockmp
21978 311839 0 0 3 0x40014200 tmoslp softclock
19075 249328 0 0 3 0x40014200 idle0
1 420819 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 22955 (syz-executor) thread 0xffff80003c41e030 (357135)
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10245 11044K 12600K 166960K 14005 0
pcb 17 15K 16K 166960K 234 0
rtable 240 12K 12K 166960K 648 0
pf 41 18K 20K 166960K 197 0
ifaddr 43 8K 8K 166960K 140 0
ifgroup 64 2K 3K 166960K 241 0
sysctl 4 1K 9K 166960K 17 0
counters 72 37K 38K 166960K 258 0
ioctlops 0 0K 6K 166960K 1726 0
iov 0 0K 32K 166960K 205 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1466 92K 93K 166960K 2678 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 41 0
dirhash 12 2K 2K 166960K 30 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 240K 166960K 1221 0
sigio 1 0K 0K 166960K 65 0
proc 72 115K 164K 166960K 711 0
subproc 72 4K 4K 166960K 111 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 123 0
in_multi 87 6K 7K 166960K 188 0
ether_multi 1 0K 0K 166960K 8 0
mrt 0 0K 0K 166960K 11 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 235 1049K 1049K 166960K 235 0
exec 0 0K 1K 166960K 546 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 238 167K 191K 166960K 12996 0
UVM aobj 31 10K 10K 166960K 33 0
pinsyscall 42 84K 106K 166960K 2501 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 67 0
NDP 14 0K 2K 166960K 97 0
temp 72 8671K 8919K 166960K 58379 0
kqueue 13 20K 36K 166960K 269 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 120 124 0 121 1 0 1 1 0 8 0
rtentry 176 194 0 102 6 0 6 6 0 8 0
unpcb 144 499 0 480 2 1 1 2 0 8 0
syncache 336 12 0 12 2 1 1 1 0 8 1
tcpqe 32 4 0 4 2 1 1 1 0 8 1
tcpcb 736 533 0 524 9 5 4 7 0 8 3
arp 136 29 0 14 1 0 1 1 0 8 0
inpcb 328 1486 0 1473 15 7 8 13 0 8 6
nd6 152 40 0 15 1 0 1 1 0 8 0
pkpcb 40 10 0 10 1 1 0 1 0 8 0
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1192 71 0 71 1 0 1 1 0 8 1
pppxif 1504 11 0 11 2 1 1 1 0 8 1
pffrag 232 11 0 1 1 0 1 1 0 482 0
pffrnode 88 9 0 0 1 0 1 1 0 8 0
pffrent 40 13 0 3 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 2 0 2 1 1 0 1 0 8 0
pfstitem 24 68 0 22 1 0 1 1 0 8 0
pfstkey 128 68 0 22 2 0 2 2 0 8 0
pfstate 448 66 0 22 6 0 6 6 0 8 0
pfrule 1344 26 0 21 2 1 1 2 0 8 0
rttmr 136 3 0 3 3 2 1 1 0 8 1
art_heap8 4096 5 0 2 5 0 5 5 0 8 2
art_heap4 256 873 0 483 31 6 25 29 0 8 0
art_table 40 878 0 485 5 0 5 5 0 8 0
art_node 32 192 0 111 1 0 1 1 0 8 0
sysvmsgpl 40 14 0 8 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 34 0 24 1 0 1 1 0 8 0
shmpl 112 25 0 1 1 0 1 1 0 8 0
dirhash 1024 30 0 13 3 0 3 3 0 8 0
dino2pl 256 3639 0 2119 96 0 96 96 0 8 0
ffsino 296 3639 0 2119 118 0 118 118 0 8 0
ffsino: pool(0xffffffff839c3f10:ffsino): page inconsistency: page 0x0; at page head addr 0xfffffd806ca9af90 (p 0xfffffd806ca9a000)
nchpl 144 5214 0 3500 64 0 64 64 0 8 0
rtmask 32 11 0 11 2 1 1 1 0 8 1
vnodes 216 4554 0 0 253 0 253 253 0 8 0
namei 1024 19024 0 19023 2 1 1 2 0 8 0
percpumem 16 144 0 93 1 0 1 1 0 8 0
vcpupl 3968 5 0 1 1 0 1 1 0 8 0
vmpool 840 5 0 1 1 0 1 1 0 8 0
kstatmem 264 152 0 118 3 0 3 3 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 4 0 4 3 3 0 1 0 8 0
scxspl 216 21377 0 21377 9 8 1 8 1 8 1
plimitpl 152 239 0 221 1 0 1 1 0 8 0
sigapl 424 1552 0 1486 8 0 8 8 0 8 0
knotepl 120 343 0 0 11 0 11 11 0 8 0
kqueuepl 224 579 0 568 9 5 4 5 0 8 2
pipepl 344 377 0 350 15 6 9 9 0 8 6
fdescpl 528 1508 0 1478 3 0 3 3 0 8 0
filepl 160 10125 0 9905 21 4 17 18 0 8 5
lockfpl 104 532 0 530 1 0 1 1 0 8 0
lockfspl 48 212 0 210 1 0 1 1 0 8 0
sessionpl 144 33 0 24 1 0 1 1 0 8 0
pgrppl 48 66 0 48 1 0 1 1 0 8 0
ucredpl 104 1522 0 1506 1 0 1 1 0 8 0
zombiepl 144 1489 0 1486 1 0 1 1 0 8 0
processpl 1232 1552 0 1486 6 0 6 6 0 8 0
procpl 664 3236 0 3166 9 1 8 8 0 8 0
sosppl 176 5 0 5 2 2 0 1 0 8 0
sockpl 752 2143 0 2108 20 9 11 18 0 8 6
mcl64k 65536 5 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 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 112 0 0 14 0 14 14 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 32 0 0 4 0 4 4 0 8 0
mtagpl 96 77 0 0 2 0 2 2 0 8 0
mbufpl 256 930 0 0 59 0 59 59 0 8 0
bufpl 280 7345 0 1208 439 0 439 439 0 8 0
anonpl 32 9712 0 0 79 0 79 79 0 246 0
amapchunkpl 152 44027 0 43555 39 4 35 35 0 158 11
amappl16 200 4522 0 4491 30 16 14 15 0 8 8
amappl15 192 5 0 5 2 2 0 1 0 8 0
amappl14 184 5 0 5 2 2 0 1 0 8 0
amappl13 176 484 0 483 1 0 1 1 0 8 0
amappl12 168 1945 0 1904 3 0 3 3 0 8 0
amappl11 160 45 0 45 1 1 0 1 0 8 0
amappl10 152 55 0 41 1 0 1 1 0 8 0
amappl9 144 274 0 274 1 1 0 1 0 8 0
amappl8 136 27 0 25 1 0 1 1 0 8 0
amappl7 128 100 0 99 1 0 1 1 0 8 0
amappl6 120 339 0 326 1 0 1 1 0 8 0
amappl5 112 88 0 77 1 0 1 1 0 8 0
amappl4 104 505 0 477 1 0 1 1 0 8 0
amappl3 96 7309 0 7219 4 1 3 3 0 8 0
amappl2 88 1667 0 1590 2 0 2 2 0 8 0
amappl1 80 15812 0 15220 14 0 14 14 0 8 0
amappl 88 11942 0 11782 5 0 5 5 0 92 0
uvmvnodes 80 141 0 0 3 0 3 3 0 8 0
dma4096 4096 2 0 2 2 2 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 128 255 0 255 3 3 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 32 0 2 1 0 1 1 0 8 0
uaddrrnd 24 1508 0 1477 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1508 0 1477 1 0 1 1 0 8 0
vmmpekpl 168 14428 0 14384 3 0 3 3 0 8 0
vmmpepl 168 102571 0 100667 106 8 98 98 0 357 8
vmsppl 488 1507 0 1477 5 0 5 5 0 8 0
rwobjpl 80 29315 0 28223 28 0 28 28 0 8 0
pdppl 4096 3033 0 2960 112 36 76 87 0 8 3
pvpl 32 18120 0 0 147 1 146 146 0 265 0
pmappl 256 1512 0 1478 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 352 0 52 9 0 9 9 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ffs_write(ffff80003c480dd0) at ffs_write+0x170 sys/ufs/ffs/ffs_vnops.c:307
VOP_WRITE(fffffd8061fda6c0,ffff80003c480e68,23,fffffd80097fd000) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8061fda6c0,ffff80003c480fa0,40,0,1,8ff0e703785b9fa4,0,1018,0) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
acct_process(ffff8000fffef240) at acct_process+0x7a2 sys/kern/kern_acct.c:245
exit1(ffff8000fffef240,0,0,1) at exit1+0x5c4 sys/kern/kern_exit.c:228
sys_exit(ffff8000fffef240,ffff80003c4811e0,ffff80003c481130) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c4811e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4811e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b3fbc9a7540, count: -8
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299edff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff8000299edff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: -5