uvm_fault(0xffffffff82662d80, 0x8, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at nd6_ns_output+0x337: movzbl 0(%r15),%ebx
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xffffffff82662d80, 0x8, 0, 1) -> e
nd6_ns_output(ffff8000009d6000,0,ffff800000aa53a8,fffffd80656e6c90,0) at nd6_ns_output+0x337 sys/netinet6/nd6_nbr.c:460
end trace frame: 0xffff800020e27320, count: 0
ddb{0}> trace
nd6_ns_output(ffff8000009d6000,0,ffff800000aa53a8,fffffd80656e6c90,0) at nd6_ns_output+0x337 sys/netinet6/nd6_nbr.c:460
nd6_llinfo_timer(fffffd80688b65b8) at nd6_llinfo_timer+0x276
nd6_timer(ffffffff82694fc0) at nd6_timer+0xa8 sys/netinet6/nd6.c:330
timeout_run(ffffffff82694fc0) at timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline]
timeout_run(ffffffff82694fc0) at timeout_run+0xc4 sys/kern/kern_timeout.c:490
softclock_thread(ffff800020e19110) at softclock_thread+0x16a sys/kern/kern_timeout.c:580
end trace frame: 0x0, count: -5
ddb{0}> show registers
rdi 0x80
rsi 0x80
rbp 0xffff800020e272c0
rbx 0x80
rdx 0x4bdcc acpi_pdirpa+0x37c34
rcx 0
rax 0xffffffff811c5c82 nd6_ns_output+0x332
r8 0
r9 0x5
r10 0x6
r11 0x2e741877013e6f8b
r12 0xfffffd807964d2b8
r13 0xffff800000aa53a8
r14 0xfffffd807964d200
r15 0x8
rip 0xffffffff811c5c87 nd6_ns_output+0x337
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800020e271d0
ss 0x10
nd6_ns_output+0x337: movzbl 0(%r15),%ebx
ddb{0}> show proc
PROC (softclock) pid=124776 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
pri=0, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020e195f0,0xffff800020e189d0
process=0xffff800020e1a000 user=0xffff800020e22000, vmspace=0xffffffff82662d80
estcpu=0, cpticks=0, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
13686 94012 0 0 3 0x14200 bored sosplice
89296 36682 63336 0 2 0x482 syz-executor.1
96814 276610 63336 0 7 0x3 syz-executor.0
63336 263815 53768 0 3 0x82 thrsleep syz-fuzzer
63336 369270 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 244206 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 35691 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 270943 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 145314 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 430809 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 355307 53768 0 3 0x4000082 kqread syz-fuzzer
63336 66193 53768 0 3 0x4000082 thrsleep syz-fuzzer
63336 457622 53768 0 3 0x4000082 thrsleep syz-fuzzer
53768 333334 8460 0 3 0x10008a pause ksh
8460 218114 41060 0 3 0x92 select sshd
87237 214958 1 0 3 0x100083 ttyin getty
41060 316649 1 0 3 0x80 select sshd
74258 467034 55110 74 3 0x100092 bpf pflogd
55110 383487 1 0 3 0x80 netio pflogd
38765 152925 34904 73 3 0x100090 kqread syslogd
34904 507469 1 0 3 0x100082 netio syslogd
81076 436265 1 77 3 0x100090 poll dhclient
45043 436841 1 0 3 0x80 poll dhclient
14205 208565 0 0 3 0x14200 bored smr
28053 472578 0 0 3 0x14200 pgzero zerothread
66775 18582 0 0 3 0x14200 aiodoned aiodoned
16659 468995 0 0 3 0x14200 syncer update
3289 185938 0 0 3 0x14200 cleaner cleaner
699 332753 0 0 3 0x14200 reaper reaper
10153 480033 0 0 3 0x14200 pgdaemon pagedaemon
69371 19765 0 0 3 0x14200 bored crynlk
22218 286004 0 0 3 0x14200 bored crypto
76579 320585 0 0 3 0x40014200 acpi0 acpi0
39148 158118 0 0 3 0x40014200 idle1
28976 303931 0 0 3 0x14200 bored softnet
5280 52552 0 0 3 0x14200 bored systqmp
74600 371146 0 0 3 0x14200 bored systq
*26423 124776 0 0 7 0x40014200 softclock
85587 422094 0 0 3 0x40014200 idle0
1 332231 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 26423 (softclock) thread 0xffff800020e19110 (124776)
exclusive rwlock netlock r = 0 (0xffffffff824965b8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 nd6_timer+0x31 sys/netinet6/nd6.c:326
#2 timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline]
#2 timeout_run+0xc4 sys/kern/kern_timeout.c:490
#3 softclock_thread+0x16a sys/kern/kern_timeout.c:580
#4 proc_trampoline+0x1c
shared rwlock timeout r = 0 (0xffffffff8253b068)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 timeout_run+0xb9 sys/kern/kern_timeout.c:489
#2 softclock_thread+0x16a sys/kern/kern_timeout.c:580
#3 proc_trampoline+0x1c
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82648e48)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227
#2 mi_switch+0x392 sys/kern/sched_bsd.c:435
#3 sleep_finish+0x113 sys/kern/kern_synch.c:418
#4 softclock_thread+0x103 sys/kern/kern_timeout.c:575
#5 proc_trampoline+0x1c
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9519 6478K 6800K 78643K 11257 0
pcb 13 8K 8K 78643K 83 0
rtable 107 12K 12K 78643K 335 0
ifaddr 68 13K 14K 78643K 117 0
counters 43 33K 34K 78643K 57 0
ioctlops 0 0K 4K 78643K 1482 0
iov 0 0K 16K 78643K 46 0
mount 1 1K 1K 78643K 1 0
vnodes 1224 77K 77K 78643K 1414 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 9 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 27 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 4 9K 25K 78643K 289 0
sigio 0 0K 0K 78643K 44 0
proc 61 63K 95K 78643K 475 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 23 0
in_multi 43 2K 2K 78643K 108 0
ether_multi 1 0K 0K 78643K 13 0
mrt 0 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 237 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 119 55K 71K 78643K 1898 0
UVM aobj 18 2K 2K 78643K 18 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 1K 78643K 49 0
NDP 11 0K 0K 78643K 27 0
temp 122 3045K 3110K 78643K 4158 0
kqueue 4 5K 12K 78643K 25 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 7 0 1 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 45 0 43 1 0 1 1 0 8 0
rtentry 112 70 0 28 2 0 2 2 0 8 0
unpcb 120 271 0 261 1 0 1 1 0 8 0
syncache 264 9 0 9 3 2 1 1 0 8 1
tcpqe 32 71 0 71 2 1 1 1 0 8 1
tcpcb 544 141 0 136 1 0 1 1 0 8 0
inpcb 280 359 0 350 3 1 2 2 0 8 1
rttmr 72 1 0 1 1 0 1 1 0 8 1
nd6 48 12 0 7 1 0 1 1 0 8 0
ppxss 1128 2 0 2 2 1 1 1 0 8 1
pffrag 232 5 0 4 1 0 1 1 0 482 0
pffrnode 88 5 0 4 1 0 1 1 0 8 0
pffrent 40 53 0 52 1 0 1 1 0 8 0
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 39 0 5 1 0 1 1 0 8 0
pfstkey 112 39 0 5 1 0 1 1 0 8 0
pfstate 328 39 0 5 3 0 3 3 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 330 0 138 13 1 12 13 0 8 0
art_table 32 332 0 138 2 0 2 2 0 8 0
art_node 16 69 0 31 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 6 1 0 1 1 0 8 1
semapl 112 23 0 13 1 0 1 1 0 8 0
shmpl 112 16 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1927 0 522 89 0 89 89 0 8 0
ffsino 272 1927 0 522 94 0 94 94 0 8 0
nchpl 144 2651 0 1038 60 0 60 60 0 8 0
uvmvnodes 72 2112 0 0 39 0 39 39 0 8 0
vnodes 208 2112 0 0 112 0 112 112 0 8 0
namei 1024 7420 0 7420 2 1 1 1 0 8 1
percpumem 16 39 0 7 1 0 1 1 0 8 0
vcpupl 1984 3 0 0 1 0 1 1 0 8 0
vmpool 560 5 0 2 1 0 1 1 0 8 0
scxspl 192 7455 0 7455 8 7 1 6 0 8 1
plimitpl 152 35 0 27 1 0 1 1 0 8 0
sigapl 424 505 0 474 4 0 4 4 0 8 0
futexpl 56 5288 0 5288 2 1 1 1 0 8 1
knotepl 112 78 0 59 1 0 1 1 0 8 0
kqueuepl 144 56 0 53 1 0 1 1 0 8 0
pipelkpl 48 121 0 111 1 0 1 1 0 8 0
pipepl 120 242 0 223 1 0 1 1 0 8 0
fdescpl 496 489 0 474 3 0 3 3 0 8 0
filepl 152 3144 0 3044 5 0 5 5 0 8 1
lockfpl 104 66 0 65 1 0 1 1 0 8 0
lockfspl 48 27 0 26 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 20 0 9 1 0 1 1 0 8 0
ucredpl 96 293 0 284 1 0 1 1 0 8 0
zombiepl 144 474 0 472 1 0 1 1 0 8 0
processpl 984 505 0 472 5 0 5 5 0 8 0
procpl 624 1121 0 1079 4 0 4 4 0 8 0
sosppl 128 2 0 2 1 0 1 1 0 8 1
sockpl 400 682 0 662 6 2 4 4 0 8 1
mcl64k 65536 11 0 0 2 0 2 2 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 203 0 0 25 0 25 25 0 8 0
mtagpl 80 59 0 0 2 0 2 2 0 8 0
mbufpl 256 508 0 0 31 0 31 31 0 8 0
bufpl 280 4299 0 135 298 0 298 298 0 8 0
anonpl 16 55609 0 41800 60 3 57 57 0 124 1
amapchunkpl 152 2712 0 2583 10 4 6 10 0 158 0
amappl16 192 1948 0 1208 40 1 39 39 0 8 1
amappl15 184 125 0 122 1 0 1 1 0 8 0
amappl14 176 160 0 154 1 0 1 1 0 8 0
amappl13 168 161 0 159 1 0 1 1 0 8 0
amappl12 160 9 0 6 2 1 1 1 0 8 0
amappl11 152 51 0 36 1 0 1 1 0 8 0
amappl10 144 14 0 10 1 0 1 1 0 8 0
amappl9 136 387 0 386 1 0 1 1 0 8 0
amappl8 128 347 0 318 1 0 1 1 0 8 0
amappl7 120 116 0 105 1 0 1 1 0 8 0
amappl6 112 21 0 20 1 0 1 1 0 8 0
amappl5 104 253 0 238 1 0 1 1 0 8 0
amappl4 96 629 0 596 1 0 1 1 0 8 0
amappl3 88 250 0 242 1 0 1 1 0 8 0
amappl2 80 3042 0 2979 2 0 2 2 0 8 0
amappl1 72 20537 0 20106 23 13 10 18 0 8 0
amappl 80 1372 0 1328 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 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 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 17 0 0 1 0 1 1 0 8 0
uaddrrnd 24 494 0 476 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 494 0 476 1 0 1 1 0 8 0
vmmpekpl 168 7672 0 7640 2 0 2 2 0 8 0
vmmpepl 168 66080 0 64286 108 19 89 104 0 357 3
vmsppl 368 493 0 476 2 0 2 2 0 8 0
pdppl 4096 996 0 955 6 0 6 6 0 8 0
pvpl 32 192686 0 175820 152 7 145 145 0 265 7
pmappl 232 493 0 476 2 0 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 286 0 7 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
nd6_ns_output(ffff8000009d6000,0,ffff800000aa53a8,fffffd80656e6c90,0) at nd6_ns_output+0x337 sys/netinet6/nd6_nbr.c:460
nd6_llinfo_timer(fffffd80688b65b8) at nd6_llinfo_timer+0x276
nd6_timer(ffffffff82694fc0) at nd6_timer+0xa8 sys/netinet6/nd6.c:330
timeout_run(ffffffff82694fc0) at timeout_run+0xc4 timeout_sync_leave sys/kern/kern_timeout.c:184 [inline]
timeout_run(ffffffff82694fc0) at timeout_run+0xc4 sys/kern/kern_timeout.c:490
softclock_thread(ffff800020e19110) at softclock_thread+0x16a sys/kern/kern_timeout.c:580
end trace frame: 0x0, count: -5
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020e00ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82648c40) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82648c40) at __mp_lock+0x127 sys/kern/kern_lock.c:147
ktrstruct(ffff800020e6d868,ffffffff821edde6,ffff800020f6b3e8,10) at ktrstruct+0xee
sys_clock_gettime(ffff800020e6d868,ffff800020f6b450,ffff800020f6b4a0) at sys_clock_gettime+0xfb sys/kern/kern_time.c:171
syscall(ffff800020f6b520) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020f6b520) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff2890, count: -8