uvm_fault(0xffffffff828743c8, 0x10, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 77419 36508 0 0x14000 0x200 0 softnet
nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline]
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 sys/netinet6/nd6_nbr.c:301
icmp6_input(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at icmp6_input+0xa26 sys/netinet6/icmp6.c:686
ip_deliver(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at ip_deliver+0x2c2 sys/netinet/ip_input.c:658
ip6_input_if(ffff8000215f6c98,ffff8000215f6ca4,29,0,ffff8000006ac000) at ip6_input_if+0x936
ipv6_input(ffff8000006ac000,fffffd8064e9c800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
if_input_local(ffff8000006ac000,fffffd8064e9c800,18) at if_input_local+0x136 sys/net/if.c:778
loinput(ffff8000006ac000,fffffd8064e9c800) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff8000006ac000,ffff8000215f6dd8) at if_input_process+0xd2 sys/net/if.c:843
ifiq_process(ffff8000006ac410) at ifiq_process+0x80 sys/net/ifq.c:773
taskq_thread(ffff80000002b080) at taskq_thread+0x8d sys/kern/kern_task.c:449
end trace frame: 0x0, count: 4
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(0xffffffff828743c8, 0x10, 0, 1) -> e
ddb> trace
nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline]
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 sys/netinet6/nd6_nbr.c:301
icmp6_input(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at icmp6_input+0xa26 sys/netinet6/icmp6.c:686
ip_deliver(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at ip_deliver+0x2c2 sys/netinet/ip_input.c:658
ip6_input_if(ffff8000215f6c98,ffff8000215f6ca4,29,0,ffff8000006ac000) at ip6_input_if+0x936
ipv6_input(ffff8000006ac000,fffffd8064e9c800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
if_input_local(ffff8000006ac000,fffffd8064e9c800,18) at if_input_local+0x136 sys/net/if.c:778
loinput(ffff8000006ac000,fffffd8064e9c800) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff8000006ac000,ffff8000215f6dd8) at if_input_process+0xd2 sys/net/if.c:843
ifiq_process(ffff8000006ac410) at ifiq_process+0x80 sys/net/ifq.c:773
taskq_thread(ffff80000002b080) at taskq_thread+0x8d sys/kern/kern_task.c:449
end trace frame: 0x0, count: -11
ddb> show registers
rdi 0
rsi 0
rbp 0xffff8000215f6820
rbx 0
rdx 0
rcx 0x7
rax 0xffff8000ffffe000
r8 0xffffffff81b71745 nd6_ns_input+0x395
r9 0x1
r10 0xfae2dc111f3eadb
r11 0xa3e26dba25fc46f4
r12 0
r13 0x2
r14 0
r15 0xffff800000e3d200
rip 0xffffffff81b73e98 nd6_dad_duplicated+0x28
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000215f67a0
ss 0x10
nd6_dad_duplicated+0x28: movq 0x10(%r14),%r13
ddb> show proc
PROC (softnet) pid=77419 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffffe2a0,0xffff8000ffffe7f0
process=0xffff8000ffffc000 user=0xffff8000215f1000, vmspace=0xffffffff828743c8
estcpu=0, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
79080 435827 32293 0 2 0 syz-executor.0
79080 515204 32293 0 2 0x4000000 syz-executor.0
38070 390061 48133 0 2 0x2 syz-executor.1
32293 355861 48133 0 3 0x82 nanoslp syz-executor.0
82176 384857 1 0 3 0x100083 ttyin getty
57522 457573 0 0 3 0x14200 acct acct
34723 206186 0 0 3 0x14200 bored sosplice
48133 12606 48473 0 3 0x82 thrsleep syz-fuzzer
48133 42255 48473 0 3 0x4000082 nanoslp syz-fuzzer
48133 169960 48473 0 3 0x4000082 thrsleep syz-fuzzer
48133 431720 48473 0 3 0x4000082 thrsleep syz-fuzzer
48133 201565 48473 0 3 0x4000082 thrsleep syz-fuzzer
48133 386329 48473 0 3 0x4000082 thrsleep syz-fuzzer
48133 46968 48473 0 3 0x4000082 kqread syz-fuzzer
48473 185927 21898 0 3 0x10008a sigsusp ksh
21898 154990 43773 0 3 0x9a kqread sshd
43773 358310 1 0 3 0x88 kqread sshd
11440 335868 8739 73 3 0x100090 kqread syslogd
8739 263599 1 0 3 0x100082 netio syslogd
97892 315209 1 0 3 0x100080 kqread resolvd
32909 400067 81792 77 3 0x100092 kqread dhcpleased
85300 458409 81792 77 3 0x100092 kqread dhcpleased
81792 269776 1 0 3 0x80 kqread dhcpleased
58712 434393 0 0 3 0x14200 bored smr
83644 85805 0 0 2 0x14200 zerothread
87795 433079 0 0 3 0x14200 aiodoned aiodoned
87653 192292 0 0 2 0x14600 update
38111 362951 0 0 3 0x14200 cleaner cleaner
31723 204571 0 0 3 0x14200 reaper reaper
63089 131388 0 0 3 0x14200 pgdaemon pagedaemon
41270 505602 0 0 3 0x14200 bored viomb
588 453074 0 0 3 0x40014200 acpi0 acpi0
*36508 77419 0 0 7 0x14200 softnet
49233 119110 0 0 2 0x14200 systqmp
8387 501200 0 0 3 0x14200 bored systq
8300 228368 0 0 3 0x40014200 bored softclock
82397 335996 0 0 3 0x40014200 idle0
1 514687 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 10145 6376K 8144K 78643K 108318 0
pcb 14 18K 20K 78643K 2853 0
rtable 165 24K 26K 78643K 8507 0
ifaddr 84 27K 29K 78643K 2983 0
sysctl 2 0K 0K 78643K 2 0
counters 22 16K 17K 78643K 387 0
ioctlops 0 0K 4K 78643K 11644 0
iov 0 0K 16K 78643K 2240 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1519 95K 96K 78643K 30468 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 231 0
VM map 2 0K 0K 78643K 2 0
sem 12 0K 1K 78643K 2798 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 5 13K 25K 78643K 24342 0
sigio 0 0K 0K 78643K 243 0
proc 108 58K 74K 78643K 3105 0
subproc 26 1K 1K 78643K 975 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 1185 0
in_multi 20 1K 2K 78643K 2490 0
ether_multi 1 0K 0K 78643K 459 0
mrt 2 0K 0K 78643K 78 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 241 1076K 1076K 78643K 241 0
exec 0 0K 2K 78643K 5189 0
pfkey data 0 0K 1K 78643K 7 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 7 26K 26K 78643K 7 0
UVM amap 543 1589K 1610K 78643K 294438 0
UVM aobj 131 4K 4K 78643K 137 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 2292 0
NDP 7 0K 0K 78643K 659 0
temp 104 4226K 4808K 78643K 284004 0
kqueue 12 18K 26K 78643K 1016 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 1980 0 1977 29 28 1 3 0 8 0
rtentry 112 1494 0 1466 5 3 2 2 0 8 0
unpcb 128 17772 0 17759 165 164 1 7 0 8 0
syncache 296 49 0 49 16 16 0 1 0 8 0
tcpqe 32 402 100 402 1 1 0 1 0 8 0
tcpcb 736 8482 0 8478 303 302 1 15 0 8 0
arp 88 196 0 192 1 0 1 1 0 8 0
ipq 40 204 0 204 16 16 0 1 0 8 0
ipqe 40 1727 0 1727 16 16 0 1 0 8 0
inpcb 304 27258 0 27247 383 382 1 13 0 8 0
rttmr 72 36 0 36 10 10 0 1 0 8 0
ip6q 72 27 0 27 4 4 0 1 0 8 0
ip6af 40 51 0 51 4 4 0 1 0 8 0
nd6 48 382 0 379 3 2 1 1 0 8 0
pkpcb 40 203 0 203 16 16 0 1 0 8 0
kcovpl 48 75 0 73 2 1 1 1 0 8 0
ppxss 1152 121 0 121 26 25 1 1 0 8 1
pfstscr 40 1540 0 1538 6 5 1 1 0 8 0
pffrag 232 110 0 110 18 18 0 1 0 482 0
pffrnode 88 110 0 110 18 18 0 1 0 8 0
pffrent 40 1246 0 1246 18 18 0 1 0 8 0
pfosfp 40 8 0 5 1 0 1 1 0 8 0
pfosfpen 112 8 0 1 1 0 1 1 0 8 0
pfrktable 1344 1839 0 1798 15 11 4 4 0 8 0
pftag 88 416 0 405 5 4 1 1 0 8 0
pfqueue 264 75 0 70 1 0 1 1 0 8 0
pfstitem 24 476 0 472 6 5 1 1 0 8 0
pfstkey 112 2990 0 2986 8 7 1 1 0 8 0
pfstate 320 1497 0 1495 8 7 1 1 0 8 0
pfrule 1360 3430 0 2964 45 6 39 39 0 8 0
art_heap8 4096 11 0 8 8 5 3 4 0 8 0
art_heap4 256 6729 0 6605 58 48 10 17 0 8 2
art_table 32 6740 0 6613 5 3 2 3 0 8 0
art_node 16 1477 0 1451 1 0 1 1 0 8 0
sysvmsgpl 40 52 0 14 1 0 1 1 0 8 0
semupl 112 5 0 5 1 1 0 1 0 8 0
semapl 112 2793 0 2783 1 0 1 1 0 8 0
shmpl 112 134 0 6 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 33933 0 32473 93 1 92 92 0 8 0
ffsino 240 33933 0 32473 87 0 87 87 0 8 0
nchpl 144 69133 0 67545 60 0 60 60 0 8 0
uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 260728 0 260727 33 32 1 1 0 8 0
vcpupl 1984 122 0 0 16 0 16 16 0 8 0
vmpool 528 415 0 293 10 1 9 9 0 8 0
pfiaddrpl 120 965 0 758 13 6 7 7 0 8 0
scsiplug 72 23 0 23 7 7 0 1 0 8 0
scxspl 216 246696 0 246696 70 68 2 8 0 8 2
plimitpl 152 2480 0 2472 1 0 1 1 0 8 0
sigapl 424 24383 0 24352 7 2 5 7 0 8 0
futexpl 64 252856 0 252856 29 28 1 1 0 8 1
knotepl 112 179008 0 178965 3 1 2 3 0 8 0
kqueuepl 184 6593 0 6568 123 121 2 8 0 8 0
pipepl 304 4597 0 4587 141 140 1 10 0 8 0
fdescpl 432 24347 0 24331 9 7 2 3 0 8 0
filepl 120 196126 0 196021 309 301 8 17 0 8 4
lockfpl 104 7388 0 7386 20 19 1 2 0 8 0
lockfspl 48 2224 0 2222 1 0 1 1 0 8 0
sessionpl 144 98 0 88 1 0 1 1 0 8 0
pgrppl 48 207 0 197 1 0 1 1 0 8 0
ucredpl 96 22449 0 22439 1 0 1 1 0 8 0
zombiepl 144 24352 0 24352 13 12 1 1 0 8 1
processpl 1000 24383 0 24352 8 3 5 7 0 8 0
procpl 672 60699 0 60661 39 34 5 7 0 8 0
sosppl 168 149 0 149 18 18 0 1 0 8 0
sockpl 448 47237 0 47210 930 926 4 26 0 8 1
mcl64k 65536 1136 0 1136 73 72 1 1 0 8 1
mcl16k 16384 178 0 178 54 54 0 1 0 8 0
mcl12k 12288 719 0 719 66 65 1 1 0 8 1
mcl9k 9216 319 0 319 66 66 0 1 0 8 0
mcl8k 8192 2004 0 2004 60 59 1 1 0 8 1
mcl4k 4096 2830 0 2830 48 47 1 1 0 8 1
mcl2k2 2112 161 0 161 63 62 1 1 0 8 1
mcl2k 2048 127904 0 127854 40 32 8 14 0 8 0
mtagpl 96 5176 0 5166 70 69 1 12 0 8 0
mbufpl 256 447222 0 446957 1649 1629 20 389 0 8 1
bufpl 280 48253 0 41854 458 0 458 458 0 8 0
anonpl 24 6721648 0 6699689 539 379 160 160 0 188 15
amapchunkpl 152 786065 0 785434 301 274 27 40 0 158 0
amappl16 200 65488 0 64513 293 228 65 65 0 8 10
amappl15 192 2839 0 2833 1 0 1 1 0 8 0
amappl14 184 4922 0 4919 1 0 1 1 0 8 0
amappl13 176 1922 0 1921 1 0 1 1 0 8 0
amappl12 168 2865 0 2864 1 0 1 1 0 8 0
amappl11 160 1504 0 1489 1 0 1 1 0 8 0
amappl10 152 459 0 457 1 0 1 1 0 8 0
amappl9 144 6585 0 6582 1 0 1 1 0 8 0
amappl8 136 7566 0 7500 4 1 3 3 0 8 0
amappl7 128 6230 0 6222 1 0 1 1 0 8 0
amappl6 120 6680 0 6667 1 0 1 1 0 8 0
amappl5 112 20247 0 20227 1 0 1 1 0 8 0
amappl4 104 6886 0 6855 1 0 1 1 0 8 0
amappl3 96 4932 0 4916 1 0 1 1 0 8 0
amappl2 88 27874 0 27792 2 0 2 2 0 8 0
amappl1 80 401945 0 401529 13 3 10 12 0 8 0
amappl 88 292430 0 292157 8 1 7 7 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 64 136 0 6 3 0 3 3 0 8 0
uaddrrnd 24 24762 0 24624 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 24762 0 24624 1 0 1 1 0 8 0
vmmpekpl 168 137132 0 137089 4 1 3 3 0 8 0
vmmpepl 168 2198896 0 2196475 864 726 138 140 0 357 22
vmsppl 272 24761 0 24624 11 1 10 10 0 8 0
rwobjpl 24 501712 0 499845 47 34 13 13 0 8 0
pdppl 4096 49530 0 49370 267 105 162 164 0 8 2
pvpl 32 11312427 0 11291909 823 618 205 245 0 265 22
pmappl 192 24761 0 24624 7 0 7 7 0 8 0
extentpl 40 58 0 40 1 0 1 1 0 8 0
phpool 112 3765 0 3321 42 27 15 23 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline]
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 sys/netinet6/nd6_nbr.c:301
icmp6_input(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at icmp6_input+0xa26 sys/netinet6/icmp6.c:686
ip_deliver(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at ip_deliver+0x2c2 sys/netinet/ip_input.c:658
ip6_input_if(ffff8000215f6c98,ffff8000215f6ca4,29,0,ffff8000006ac000) at ip6_input_if+0x936
ipv6_input(ffff8000006ac000,fffffd8064e9c800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
if_input_local(ffff8000006ac000,fffffd8064e9c800,18) at if_input_local+0x136 sys/net/if.c:778
loinput(ffff8000006ac000,fffffd8064e9c800) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff8000006ac000,ffff8000215f6dd8) at if_input_process+0xd2 sys/net/if.c:843
ifiq_process(ffff8000006ac410) at ifiq_process+0x80 sys/net/ifq.c:773
taskq_thread(ffff80000002b080) at taskq_thread+0x8d sys/kern/kern_task.c:449
end trace frame: 0x0, count: -11
ddb> machine ddbcpu 1
No such command
ddb> trace
nd6_dad_duplicated(0) at nd6_dad_duplicated+0x28 sys/netinet6/nd6_nbr.c:1265
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 nd6_dad_ns_input sys/netinet6/nd6_nbr.c:1342 [inline]
nd6_ns_input(fffffd806a151d00,28,18) at nd6_ns_input+0xd74 sys/netinet6/nd6_nbr.c:301
icmp6_input(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at icmp6_input+0xa26 sys/netinet6/icmp6.c:686
ip_deliver(ffff8000215f6c98,ffff8000215f6ca4,3a,18) at ip_deliver+0x2c2 sys/netinet/ip_input.c:658
ip6_input_if(ffff8000215f6c98,ffff8000215f6ca4,29,0,ffff8000006ac000) at ip6_input_if+0x936
ipv6_input(ffff8000006ac000,fffffd8064e9c800) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
if_input_local(ffff8000006ac000,fffffd8064e9c800,18) at if_input_local+0x136 sys/net/if.c:778
loinput(ffff8000006ac000,fffffd8064e9c800) at loinput+0x4d sys/net/if_loop.c:238
if_input_process(ffff8000006ac000,ffff8000215f6dd8) at if_input_process+0xd2 sys/net/if.c:843
ifiq_process(ffff8000006ac410) at ifiq_process+0x80 sys/net/ifq.c:773
taskq_thread(ffff80000002b080) at taskq_thread+0x8d sys/kern/kern_task.c:449
end trace frame: 0x0, count: -11
ddb>