login: uvm_fault(0xfffffd807ece9000, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at checkalias+0xb7: movl 0x18(%r13),%ebx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*392161 55202 0 0x2 0 0 syz-executor
checkalias(fffffd805e8d3ea0,ffff8000,ffff800000c68400) at checkalias+0xb7 sys/kern/vfs_subr.c:574
ffs_vinit(ffff800000c68400,ffff80002a7f1480) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c68400,cc00,ffff80002a7f1550) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffffd805e8d3630,ffff80002a7f17e0,ffff80002a7f1810) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80002a7f17b0) at vfs_lookup+0x961 sys/kern/vfs_lookup.c:567
namei(ffff80002a7f17b0) at namei+0x7ca sys/kern/vfs_lookup.c:250
dofstatat(ffff80002a786540,ffffff9c,72bf9c6acd60,72bf9c6ad160,2) at dofstatat+0xe4 sys/kern/vfs_syscalls.c:2105
syscall(ffff80002a7f1a10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7f1a10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x72bf9c6ad210, count: 5
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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd807ece9000, 0x18, 0, 1) -> e
ddb> trace
checkalias(fffffd805e8d3ea0,ffff8000,ffff800000c68400) at checkalias+0xb7 sys/kern/vfs_subr.c:574
ffs_vinit(ffff800000c68400,ffff80002a7f1480) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c68400,cc00,ffff80002a7f1550) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffffd805e8d3630,ffff80002a7f17e0,ffff80002a7f1810) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80002a7f17b0) at vfs_lookup+0x961 sys/kern/vfs_lookup.c:567
namei(ffff80002a7f17b0) at namei+0x7ca sys/kern/vfs_lookup.c:250
dofstatat(ffff80002a786540,ffffff9c,72bf9c6acd60,72bf9c6ad160,2) at dofstatat+0xe4 sys/kern/vfs_syscalls.c:2105
syscall(ffff80002a7f1a10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7f1a10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x72bf9c6ad210, count: -10
ddb> show registers
rdi 0x2
rsi 0x1
rbp 0xffff80002a7f13e0
rbx 0xfffffd800bc95d00
rdx 0
rcx 0xffffffff839c5700 speclisth
rax 0
r8 0xffffffffffffffff
r9 0
r10 0x8239b0042972f2ff
r11 0x42b3064939d9f93b
r12 0xffff8000
r13 0
r14 0xffff8000
r15 0xfffffd806c5b0cd8
rip 0xffffffff829cf717 checkalias+0xb7
cs 0x8
rflags 0x10286 __ALIGN_SIZE+0xf286
rsp 0xffff80002a7f1370
ss 0x10
checkalias+0xb7: movl 0x18(%r13),%ebx
ddb> show proc
PROC (syz-executor) tid=392161 pid=55202 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=50, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a7862a8,0xffff80002a787778
process=0xffff80002a7bc010 user=0xffff80002a7ec000, vmspace=0xfffffd807ece9000
estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
74256 194633 25597 0 2 0 syz-executor
74256 184746 25597 0 3 0x4000080 fsleep syz-executor
62101 378745 61218 0 3 0x80 fsleep syz-executor
62101 506520 61218 0 2 0x4000c80 syz-executor
62101 183094 61218 0 2 0x4000c80 syz-executor
96201 475079 53713 0 3 0x80 fsleep syz-executor
96201 56250 53713 0 3 0x4000080 fifor syz-executor
25530 199498 1253 0 3 0x80 fsleep syz-executor
25530 329524 1253 0 3 0x4000000 biowait syz-executor
86368 208596 33200 0 3 0x80 fsleep syz-executor
86368 203080 33200 0 3 0x4000080 kqsel syz-executor
39898 494472 95460 0 3 0x80 fsleep syz-executor
39898 61909 95460 0 3 0x4000080 ttyin syz-executor
40876 333174 76872 0 3 0x80 fsleep syz-executor
40876 355461 76872 0 2 0x4000000 syz-executor
26822 455274 1 0 3 0x100083 ttyin getty
85368 180645 0 0 3 0x14200 acct acct
18505 298440 0 0 3 0x14280 nfsidl nfsio
49277 380974 0 0 3 0x14280 nfsidl nfsio
37692 379156 0 0 3 0x14280 nfsidl nfsio
98041 363681 0 0 3 0x14280 nfsidl nfsio
1433 278472 0 0 3 0x14280 nfsidl nfsio
98288 407158 0 0 3 0x14280 nfsidl nfsio
69438 100138 0 0 3 0x14280 nfsidl nfsio
78557 220869 0 0 3 0x14280 nfsidl nfsio
92332 233351 0 0 3 0x14280 nfsidl nfsio
23486 121277 0 0 3 0x14280 nfsidl nfsio
14343 213529 0 0 3 0x14280 nfsidl nfsio
64220 444998 0 0 3 0x14280 nfsidl nfsio
21675 143176 0 0 3 0x14280 nfsidl nfsio
50524 348219 0 0 3 0x14280 nfsidl nfsio
10374 6925 0 0 3 0x14280 nfsidl nfsio
1829 435455 0 0 3 0x14280 nfsidl nfsio
27417 376311 0 0 3 0x14280 nfsidl nfsio
95795 488153 0 0 3 0x14280 nfsidl nfsio
69543 299965 0 0 3 0x14280 nfsidl nfsio
95524 262316 0 0 3 0x14280 nfsidl nfsio
33200 270642 53381 0 2 0xc82 syz-executor
1253 79771 53381 0 2 0xc82 syz-executor
53713 423388 53381 0 2 0xc82 syz-executor
95460 283886 53381 0 2 0xc82 syz-executor
61218 343103 53381 0 2 0xc82 syz-executor
25597 170152 53381 0 3 0x82 nanoslp syz-executor
76872 424395 53381 0 3 0x82 wait syz-executor
*55202 392161 53381 0 7 0x2 syz-executor
53381 276213 89755 0 3 0x82 kqread syz-executor
89755 24 73163 0 3 0x10008a sigsusp ksh
73163 336435 35610 0 3 0x98 kqread sshd-session
35610 285673 400 0 3 0x92 kqread sshd-session
400 271783 1 0 3 0x88 kqread sshd
94817 400181 49698 73 3 0x1100090 kqread syslogd
49698 159582 1 0 3 0x100082 sbwait syslogd
90240 378307 1 0 3 0x100080 kqread resolvd
20994 148943 66327 77 3 0x100092 kqread dhcpleased
2920 491139 66327 77 3 0x100092 kqread dhcpleased
66327 186506 1 0 3 0x80 kqread dhcpleased
28750 479309 0 0 3 0x14200 bored smr
88351 384410 0 0 2 0x14200 zerothread
79208 403145 0 0 3 0x14200 aiodoned aiodoned
36132 35497 0 0 3 0x14200 syncer update
27486 228148 0 0 3 0x14200 cleaner cleaner
96326 126831 0 0 3 0x14200 reaper reaper
46610 472577 0 0 3 0x14200 pgdaemon pagedaemon
24670 16453 0 0 3 0x14200 bored viomb
73525 295437 0 0 3 0x40014200 acpi0 acpi0
35608 289835 0 0 3 0x14200 bored softnet0
91795 302987 0 0 3 0x14200 bored systqmp
93175 158479 0 0 3 0x14200 bored systq
61691 214406 0 0 3 0x40014200 tmoslp softclock
6440 365607 0 0 3 0x40014200 idle0
1 433562 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 11048 12168K 13354K 166960K 13165 0
pcb 17 16K 18K 166960K 162 0
rtable 232 8K 9K 166960K 439 0
pf 34 13K 17K 166960K 55 0
ifaddr 41 7K 7K 166960K 56 0
ifgroup 57 2K 2K 166960K 70 0
sysctl 4 1K 9K 166960K 13 0
counters 34 17K 18K 166960K 43 0
ioctlops 0 0K 4K 166960K 89 0
iov 1 0K 16K 166960K 17 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1489 94K 94K 166960K 1922 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 9 0
VM map 2 1K 1K 166960K 2 0
sem 9 2K 2K 166960K 17 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 236K 166960K 495 0
sigio 0 0K 0K 166960K 6 0
proc 60 59K 100K 166960K 539 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 196 0
in_multi 91 6K 7K 166960K 108 0
ether_multi 1 0K 0K 166960K 1 0
mrt 0 0K 0K 166960K 15 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 398 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 213 150K 168K 166960K 6020 0
UVM aobj 17 6K 6K 166960K 20 0
pinsyscall 38 76K 93K 166960K 1587 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 33 0
NDP 12 0K 1K 166960K 33 0
temp 44 9068K 9132K 166960K 15235 0
kqueue 14 22K 33K 166960K 95 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 72 0 69 1 0 1 1 0 8 0
rtentry 136 125 0 32 4 0 4 4 0 8 0
unpcb 144 391 0 374 6 0 6 6 0 8 5
syncache 336 5 0 5 1 0 1 1 0 8 1
tcpqe 32 2 0 2 1 0 1 1 0 8 1
tcpcb 736 195 0 189 4 0 4 4 0 8 3
arp 96 20 0 3 1 0 1 1 0 8 0
ipq 40 2 0 0 1 0 1 1 0 8 0
ipqe 40 2 0 0 1 0 1 1 0 8 0
inpcb 328 601 0 592 7 0 7 7 0 8 5
ip6q 72 1 0 0 1 0 1 1 0 8 0
ip6af 40 2 0 0 1 0 1 1 0 8 0
nd6 112 27 0 6 1 0 1 1 0 8 0
pkpcb 40 2 0 2 1 0 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1072 8 0 8 1 0 1 1 0 8 1
pppxif 1384 1 0 1 1 0 1 1 0 8 1
pfrktable 1344 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 1 0 0 1 0 1 1 0 8 0
pfstitem 24 2 0 0 1 0 1 1 0 8 0
pfstkey 128 2 0 0 1 0 1 1 0 8 0
pfstate 384 1 0 0 1 0 1 1 0 8 0
pfrule 1360 4 0 4 1 0 1 1 0 8 1
art_heap8 4096 4 0 0 4 0 4 4 0 8 0
art_heap4 256 563 0 153 31 0 31 31 0 8 2
art_table 40 567 0 153 5 0 5 5 0 8 0
art_node 32 125 0 41 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 13 0 6 1 0 1 1 0 8 0
shmpl 112 14 0 2 1 0 1 1 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2263 0 799 92 0 92 92 0 8 0
ffsino 256 2263 0 799 92 0 92 92 0 8 0
nchpl 144 2936 0 1237 64 0 64 64 0 8 0
rtmask 32 2 0 2 1 0 1 1 0 8 1
vnodes 216 2754 0 0 153 0 153 153 0 8 0
vnodes: pool(0xffffffff839c8438:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd806c5b0f90 (p 0xfffffd806c5b0000)
namei 1024 9416 0 9415 2 0 2 2 0 8 1
vcpupl 3904 3 0 1 1 0 1 1 0 8 0
vmpool 808 3 0 1 1 0 1 1 0 8 0
kstatmem 264 34 0 10 2 0 2 2 0 8 0
scsiplug 72 3 0 3 1 0 1 1 0 8 1
scxspl 216 11675 0 11674 8 0 8 8 1 8 7
plimitpl 152 166 0 147 1 0 1 1 0 8 0
sigapl 424 798 0 735 8 0 8 8 0 8 0
knotepl 120 21600 0 21553 16 5 11 16 0 8 8
kqueuepl 184 144 0 133 3 0 3 3 0 8 2
pipepl 304 201 0 174 8 0 8 8 0 8 5
fdescpl 448 764 0 735 5 0 5 5 0 8 1
filepl 120 4547 0 4330 13 0 13 13 0 8 6
lockfpl 104 195 0 192 1 0 1 1 0 8 0
lockfspl 48 96 0 93 1 0 1 1 0 8 0
sessionpl 144 24 0 16 1 0 1 1 0 8 0
pgrppl 48 35 0 19 1 0 1 1 0 8 0
ucredpl 104 607 0 596 1 0 1 1 0 8 0
zombiepl 144 735 0 735 1 0 1 1 0 8 1
processpl 1152 798 0 735 5 0 5 5 0 8 0
procpl 664 1339 0 1268 7 0 7 7 0 8 0
sosppl 176 1 0 1 1 0 1 1 0 8 1
sockpl 552 1074 0 1045 12 1 11 12 0 8 8
mcl64k 65536 15 0 15 1 0 1 1 0 8 1
mcl8k 8192 6 0 6 1 0 1 1 0 8 1
mcl4k 4096 2924 0 2870 15 0 15 15 0 8 7
mcl2k 2048 456 0 452 3 0 3 3 0 8 1
mtagpl 96 11 0 5 1 0 1 1 0 8 0
mbufpl 256 7868 0 7672 19 0 19 19 0 8 4
bufpl 280 3993 0 103 278 0 278 278 0 8 0
anonpl 24 145278 0 137495 57 0 57 57 0 187 9
amapchunkpl 152 19826 0 19375 33 0 33 33 0 158 14
amappl16 200 2631 0 2310 23 6 17 17 0 8 0
amappl15 192 5 0 5 1 0 1 1 0 8 1
amappl14 184 404 0 403 1 0 1 1 0 8 0
amappl13 176 144 0 134 1 0 1 1 0 8 0
amappl12 168 1004 0 976 2 0 2 2 0 8 0
amappl11 160 4 0 4 1 0 1 1 0 8 1
amappl10 152 87 0 77 1 0 1 1 0 8 0
amappl9 144 271 0 270 1 0 1 1 0 8 0
amappl8 136 95 0 93 1 0 1 1 0 8 0
amappl7 128 157 0 146 1 0 1 1 0 8 0
amappl6 120 148 0 147 1 0 1 1 0 8 0
amappl5 112 160 0 153 1 0 1 1 0 8 0
amappl4 104 260 0 244 1 0 1 1 0 8 0
amappl3 96 3664 0 3561 3 0 3 3 0 8 0
amappl2 88 534 0 478 2 0 2 2 0 8 0
amappl1 80 11407 0 10864 15 0 15 15 0 8 2
amappl 88 5254 0 5103 4 0 4 4 0 92 0
uvmvnodes 80 108 0 0 3 0 3 3 0 8 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 256 0 256 1 0 1 1 0 8 1
dma64 64 7 0 7 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 19 0 18 1 0 1 1 0 8 0
aobjpl 72 19 0 3 1 0 1 1 0 8 0
uaddrrnd 24 764 0 735 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 764 0 735 1 0 1 1 0 8 0
vmmpekpl 168 8218 0 8185 2 0 2 2 0 8 0
vmmpepl 168 56880 0 54826 102 0 102 102 0 357 10
vmsppl 368 763 0 735 4 0 4 4 0 8 1
rwobjpl 40 18400 0 17154 15 0 15 15 0 8 2
pdppl 4096 1540 0 1474 101 32 69 80 0 8 3
pvpl 32 366644 0 353590 131 0 131 131 0 265 24
pmappl 216 766 0 736 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 383 0 32 11 0 11 11 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
checkalias(fffffd805e8d3ea0,ffff8000,ffff800000c68400) at checkalias+0xb7 sys/kern/vfs_subr.c:574
ffs_vinit(ffff800000c68400,ffff80002a7f1480) at ffs_vinit+0x111 sys/ufs/ffs/ffs_subr.c:-1
ffs_vget(ffff800000c68400,cc00,ffff80002a7f1550) at ffs_vget+0x406 sys/ufs/ffs/ffs_vfsops.c:1285
ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573
VOP_LOOKUP(fffffd805e8d3630,ffff80002a7f17e0,ffff80002a7f1810) at VOPConnection to us-central1-ssh-serialport.googleapis.com closed by remote host.