uvm_fault(0xfffffd806b940dc8, 0x2b0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at vm_terminate+0xb0: movq 0x2b0(%r12),%r13
TID PID UID PRFLAGS PFLAGS CPU COMMAND
47454 29394 0 0x8000000 0 0 syz-executor
* 67231 29394 0 0x8000000 0x4000000 1 syz-executor
vm_terminate(ffff80002a12ae00) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674
vmmioctl(a00,80045604,ffff80002a12ae00,81,ffff800029fd9958) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248
VOP_IOCTL(fffffd806ded21b8,80045604,ffff80002a12ae00,81,fffffd807f7d3548,ffff800029fd9958) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd80622f5278,80045604,ffff80002a12ae00,ffff800029fd9958) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff800029fd9958,ffff80002a12afe0,ffff80002a12af30) at sys_ioctl+0x67c
syscall(ffff80002a12afe0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a12afe0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x859a4537520, count: 8
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806b940dc8, 0x2b0, 0, 1) -> e
ddb{1}> trace
vm_terminate(ffff80002a12ae00) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674
vmmioctl(a00,80045604,ffff80002a12ae00,81,ffff800029fd9958) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248
VOP_IOCTL(fffffd806ded21b8,80045604,ffff80002a12ae00,81,fffffd807f7d3548,ffff800029fd9958) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd80622f5278,80045604,ffff80002a12ae00,ffff800029fd9958) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff800029fd9958,ffff80002a12afe0,ffff80002a12af30) at sys_ioctl+0x67c
syscall(ffff80002a12afe0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a12afe0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x859a4537520, count: -7
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002a12aba0
rbx 0x81
rdx 0
rcx 0xffff800029fd9958
rax 0xffff800029b7bff0
r8 0xffff800029fd9958
r9 0xffff800029fd9958
r10 0x7d03a18e48385cfa
r11 0xd49e717957bcebf3
r12 0
r13 0
r14 0xffff80002a094830
r15 0xffff800000a18c00
rip 0xffffffff82b104a0 vm_terminate+0xb0
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a12ab60
ss 0x10
vm_terminate+0xb0: movq 0x2b0(%r12),%r13
ddb{1}> show proc
PROC (syz-executor) tid=67231 pid=29394 tcnt=3 stat=onproc
flags process=8000000<PIN> proc=4000000<THREAD>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffff27b8,0xffff800029fd9bf0
process=0xffff8000fffea8d0 user=0xffff80002a126000, vmspace=0xfffffd806b940dc8
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
25885 156180 31047 0 2 0x8000000 syz-executor
25885 24857 31047 0 3 0xc000080 fsleep syz-executor
29394 47454 35569 0 7 0x8000000 syz-executor
*29394 67231 35569 0 7 0xc000000 syz-executor
29394 231558 35569 0 3 0xc000000 vm_terminate syz-executor
83607 230587 47401 0 2 0x8000000 syz-executor
83607 279697 47401 0 3 0xc000080 fsleep syz-executor
85621 403014 55625 0 2 0x8000000 syz-executor
85621 513306 55625 0 3 0xc000080 fsleep syz-executor
85621 419308 55625 0 3 0xc000080 fsleep syz-executor
31047 26996 91327 0 3 0x8000082 nanoslp syz-executor
73199 365936 91327 0 3 0x8000082 nanoslp syz-executor
35569 487184 91327 0 3 0x8000082 nanoslp syz-executor
55625 199820 91327 0 3 0x8000082 nanoslp syz-executor
13967 222949 91327 0 3 0x8000082 nanoslp syz-executor
97350 59761 91327 0 3 0x8000082 nanoslp syz-executor
47401 377779 91327 0 3 0x8000082 nanoslp syz-executor
66327 454614 91327 0 2 0x8000002 syz-executor
94261 448927 1 0 3 0x18100083 ttyopn getty
32474 310926 0 0 3 0x14200 bored sosplice
91327 235046 98605 0 2 0x8000002 syz-executor
98605 249014 46548 0 3 0x810008a sigsusp ksh
46548 247575 71218 0 3 0x18000098 kqread sshd-session
71218 306394 51695 0 3 0x18000092 kqread sshd-session
51695 523166 1 0 3 0x18000088 kqread sshd
3496 226507 56978 74 3 0x19100092 bpf pflogd
56978 428125 1 0 3 0x18000080 sbwait pflogd
69684 180768 36859 73 3 0x19100090 kqread syslogd
36859 129617 1 0 3 0x18100082 sbwait syslogd
94120 161550 1 0 3 0x18100080 kqread resolvd
49019 65979 10515 77 3 0x18100092 kqread dhcpleased
23894 174085 10515 77 3 0x18100092 kqread dhcpleased
10515 256077 1 0 3 0x18000080 kqread dhcpleased
85900 449284 0 0 3 0x14200 pause smr
19297 147437 0 0 2 0x14200 zerothread
68216 198688 0 0 3 0x14200 aiodoned aiodoned
11151 245775 0 0 3 0x14200 syncer update
89875 181507 0 0 3 0x14200 cleaner cleaner
37998 348681 0 0 3 0x14200 reaper reaper
52149 281958 0 0 3 0x14200 pgdaemon pagedaemon
17170 459432 0 0 3 0x14200 bored viomb
56288 407111 0 0 3 0x40014200 acpi0 acpi0
28880 225336 0 0 3 0x40014200 idle1
40247 5429 0 0 3 0x14200 bored softnet3
57714 348676 0 0 3 0x14200 bored softnet2
12178 371216 0 0 3 0x14200 bored softnet1
65852 66824 0 0 3 0x14200 bored softnet0
81017 286111 0 0 3 0x14200 bored systqmp
99596 80457 0 0 3 0x14200 bored systq
68234 196864 0 0 3 0x14200 tmoslp softclockmp
24061 437559 0 0 3 0x40014200 tmoslp softclock
22314 272152 0 0 3 0x40014200 idle0
1 304684 0 0 3 0x8080082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 29394 (syz-executor) thread 0xffff800029fd9958 (67231)
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10220 10186K 10673K 166960K 17750 0
pcb 17 16K 18K 166960K 1291 0
rtable 205 15K 15K 166960K 4997 0
pf 42 19K 83K 166960K 444 0
ifaddr 42 8K 10K 166960K 637 0
ifgroup 64 2K 2K 166960K 718 0
sysctl 4 1K 1K 166960K 8 0
counters 68 36K 37K 166960K 414 0
ioctlops 0 0K 4K 166960K 2176 0
iov 0 0K 24K 166960K 403 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1516 95K 96K 166960K 7275 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 16K 24K 166960K 61 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 414 0
dirhash 15 2K 3K 166960K 78 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 18 65K 93K 166960K 5637 0
sigio 0 0K 0K 166960K 191 0
proc 71 91K 128K 166960K 4567 0
subproc 104 6K 6K 166960K 1795 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 1122 0
in_multi 87 6K 7K 166960K 1628 0
ether_multi 1 0K 0K 166960K 31 0
mrt 1 0K 0K 166960K 17 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 169 758K 758K 166960K 169 0
exec 0 0K 1K 166960K 2892 0
pfkey data 0 0K 0K 166960K 15 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 272 104K 122K 166960K 47803 0
UVM aobj 30 4K 4K 166960K 33 0
pinsyscall 43 86K 108K 166960K 10098 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 258 0
NDP 14 0K 2K 166960K 464 0
temp 77 6824K 6960K 166960K 616479 0
kqueue 13 20K 30K 166960K 665 0
SYN cache 2 8K 16K 166960K 3 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 810 0 807 6 5 1 3 0 8 0
rtentry 112 1662 0 1574 5 2 3 4 0 8 0
unpcb 144 5253 0 5231 54 46 8 8 0 8 6
syncache 336 9 0 9 6 6 0 1 0 8 0
tcpqe 32 2 0 2 1 1 0 1 0 8 0
tcpcb 808 1620 0 1616 50 42 8 8 0 8 7
arp 120 299 0 285 1 0 1 1 0 8 0
inpcb 336 6775 0 6765 81 74 7 18 0 8 5
nd6 136 456 0 432 1 0 1 1 0 8 0
pkpcb 40 45 0 45 14 13 1 1 0 8 1
kcovpl 48 138 0 130 1 0 1 1 0 8 0
ppxss 1168 21 0 21 12 11 1 1 0 8 1
pfstscr 40 4 0 4 1 1 0 1 0 8 0
pffrag 232 50 0 46 4 3 1 1 0 482 0
pffrnode 88 48 0 44 4 3 1 1 0 8 0
pffrent 40 232 0 228 4 3 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 7 0 7 1 1 0 1 0 8 0
pfanchor 1288 1 0 1 1 1 0 1 0 8 0
pftag 88 2 0 0 1 0 1 1 0 8 0
pfqueue 264 2 0 1 1 0 1 1 0 8 0
pfstitem 24 402 0 349 1 0 1 1 0 8 0
pfstkey 128 405 0 352 3 0 3 3 0 8 0
pfstate 376 402 0 350 10 3 7 8 0 8 0
pfrule 1344 24 0 19 2 1 1 2 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 6577 0 6166 43 14 29 30 0 8 2
art_table 32 6580 0 6166 4 0 4 4 0 8 0
art_node 16 1653 0 1574 1 0 1 1 0 8 0
sysvmsgpl 40 11 0 4 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 411 0 401 1 0 1 1 0 8 0
shmpl 112 30 0 3 1 0 1 1 0 8 0
dirhash 1024 62 0 42 3 0 3 3 0 8 0
dino2pl 256 8855 0 7099 111 0 111 111 0 8 0
ffsino 272 8855 0 7099 118 0 118 118 0 8 0
nchpl 144 14763 0 14057 66 39 27 66 0 8 0
uvmvnodes 80 9516 0 0 195 0 195 195 0 8 0
vnodes 216 9516 0 0 529 0 529 529 0 8 0
namei 1024 71582 0 71582 9 8 1 2 0 8 1
percpumem 16 221 0 173 1 0 1 1 0 8 0
vcpupl 3904 15 0 1 2 0 2 2 0 8 0
vmpool 696 27 0 13 3 1 2 2 0 8 0
pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0
kstatmem 264 374 0 346 4 1 3 3 0 8 0
scsiplug 72 10 0 10 7 7 0 1 0 8 0
scxspl 216 125141 0 125141 21 19 2 8 1 8 2
plimitpl 152 1334 0 1316 1 0 1 1 0 8 0
sigapl 424 5703 0 5652 10 3 7 9 0 8 0
futexpl 64 66383 0 66379 11 10 1 1 0 8 0
knotepl 120 855 0 0 26 0 26 26 0 8 0
kqueuepl 216 1618 0 1609 30 27 3 5 0 8 2
pipepl 320 872 0 845 5 2 3 5 0 8 0
fdescpl 496 5660 0 5628 10 5 5 5 0 8 0
filepl 152 44337 0 44081 99 79 20 28 0 8 7
lockfpl 104 2037 0 2035 6 5 1 4 0 8 0
lockfspl 48 635 0 633 1 0 1 1 0 8 0
sessionpl 144 155 0 146 1 0 1 1 0 8 0
pgrppl 48 337 0 320 1 0 1 1 0 8 0
ucredpl 104 8347 0 8332 1 0 1 1 0 8 0
zombiepl 144 5656 0 5652 3 2 1 1 0 8 0
processpl 1160 5703 0 5652 7 2 5 6 0 8 0
procpl 648 12082 0 12025 10 4 6 8 0 8 0
srpgc 96 39 0 39 10 9 1 1 0 8 1
sosppl 168 17 0 17 10 10 0 1 0 8 0
sockpl 664 13007 0 12972 162 149 13 31 0 8 8
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 8 0 0 1 0 1 1 0 8 0
mcl4k 4096 5 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 313 0 0 29 0 29 29 0 8 0
mtagpl 96 65 0 0 2 0 2 2 0 8 0
mbufpl 256 1092 0 0 61 0 61 61 0 8 0
bufpl 280 19903 0 10369 682 0 682 682 0 8 0
anonpl 24 740641 0 736939 162 111 51 92 0 185 1
amapchunkpl 152 155564 0 155004 93 60 33 37 0 158 8
amappl16 200 12082 0 12045 117 110 7 38 0 8 2
amappl15 192 8 0 8 1 1 0 1 0 8 0
amappl14 184 378 0 366 1 0 1 1 0 8 0
amappl13 176 5 0 5 2 2 0 1 0 8 0
amappl12 168 8367 0 8335 4 2 2 3 0 8 0
amappl11 160 78 0 64 1 0 1 1 0 8 0
amappl10 152 20 0 20 1 1 0 1 0 8 0
amappl9 144 147 0 147 1 1 0 1 0 8 0
amappl8 136 22 0 20 1 0 1 1 0 8 0
amappl7 128 375 0 362 1 0 1 1 0 8 0
amappl6 120 1465 0 1463 1 0 1 1 0 8 0
amappl5 112 653 0 640 1 0 1 1 0 8 0
amappl4 104 714 0 691 1 0 1 1 0 8 0
amappl3 96 30983 0 30847 4 0 4 4 0 8 0
amappl2 88 2471 0 2405 2 0 2 2 0 8 0
amappl1 80 32269 0 31678 18 4 14 15 0 8 0
amappl 88 46204 0 46008 5 0 5 5 0 92 0
dma65536 65536 1 0 1 1 1 0 1 0 8 0
dma16384 16384 1 0 1 1 1 0 1 0 8 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
dma512 512 3 0 3 2 2 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 7 0 7 2 1 1 1 0 8 1
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 20 0 19 1 0 1 1 0 8 0
aobjpl 72 32 0 3 1 0 1 1 0 8 0
uaddrrnd 24 5687 0 5641 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 5687 0 5641 1 0 1 1 0 8 0
vmmpekpl 168 44709 0 44648 4 0 4 4 0 8 0
vmmpepl 168 342752 0 340766 168 78 90 117 0 357 2
vmsppl 440 5686 0 5641 10 4 6 6 0 8 0
rwobjpl 56 98495 0 87946 158 8 150 150 0 8 0
pdppl 4096 11381 0 11296 300 214 86 89 0 8 1
pvpl 32 31387 0 0 254 1 253 253 0 265 0
pmappl 248 5686 0 5641 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 837 0 375 15 1 14 14 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83450ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x44 sys/dev/kcov.c:164
softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x72492836fae0, count: 9
ddb{0}> trace
x86_ipi_db(ffffffff83450ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x44 sys/dev/kcov.c:164
softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
end of kernel
end trace frame: 0x72492836fae0, count: -6
ddb{0}> machine ddbcpu 1
Stopped at vm_terminate+0xb0: movq 0x2b0(%r12),%r13
vm_terminate(ffff80002a12ae00) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674
vmmioctl(a00,80045604,ffff80002a12ae00,81,ffff800029fd9958) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248
VOP_IOCTL(fffffd806ded21b8,80045604,ffff80002a12ae00,81,fffffd807f7d3548,ffff800029fd9958) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd80622f5278,80045604,ffff80002a12ae00,ffff800029fd9958) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff800029fd9958,ffff80002a12afe0,ffff80002a12af30) at sys_ioctl+0x67c
syscall(ffff80002a12afe0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a12afe0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x859a4537520, count: 8
ddb{1}> trace
vm_terminate(ffff80002a12ae00) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674
vmmioctl(a00,80045604,ffff80002a12ae00,81,ffff800029fd9958) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248
VOP_IOCTL(fffffd806ded21b8,80045604,ffff80002a12ae00,81,fffffd807f7d3548,ffff800029fd9958) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd80622f5278,80045604,ffff80002a12ae00,ffff800029fd9958) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff800029fd9958,ffff80002a12afe0,ffff80002a12af30) at sys_ioctl+0x67c
syscall(ffff80002a12afe0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a12afe0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x859a4537520, count: -7