uvm_fault(0xffffffff8357d450, 0xffff80000130004a, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*312530 55829 0 0 0x4000000 1 syz-executor
441971 97218 0 0x14000 0x200 0 systqmp
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline]
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184
rtrequest(1,ffff800037166230,0,ffff8000371661b0,0) at rtrequest+0xbdc sys/net/route.c:1109
rtm_output(ffff800001315b00,ffff8000371662d8,ffff800037166230,0,0) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd805f0e9100,ffff80000133b0c8) at route_output+0x9a1 sys/net/rtsock.c:878
route_send(ffff80000133b0c8,fffffd805f0e9100,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(ffff80000133b0c8,0,ffff800037166478,0,0,802) at sosend+0x804
sendit(ffff80003b982540,4,ffff800037166570,802,ffff800037166620) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendto(ffff80003b982540,ffff8000371666d0,ffff800037166620) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557
syscall(ffff8000371666d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000371666d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7aebcf0f1c0, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xffffffff8357d450, 0xffff80000130004a, 0, 1) -> e
ddb{1}> trace
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline]
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184
rtrequest(1,ffff800037166230,0,ffff8000371661b0,0) at rtrequest+0xbdc sys/net/route.c:1109
rtm_output(ffff800001315b00,ffff8000371662d8,ffff800037166230,0,0) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd805f0e9100,ffff80000133b0c8) at route_output+0x9a1 sys/net/rtsock.c:878
route_send(ffff80000133b0c8,fffffd805f0e9100,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(ffff80000133b0c8,0,ffff800037166478,0,0,802) at sosend+0x804
sendit(ffff80003b982540,4,ffff800037166570,802,ffff800037166620) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendto(ffff80003b982540,ffff8000371666d0,ffff800037166620) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557
syscall(ffff8000371666d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000371666d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7aebcf0f1c0, count: -10
ddb{1}> show registers
rdi 0xffff80002a54b000
rsi 0x872
rbp 0xffff800037166080
rbx 0xde
rdx 0xffff80002a54b000
rcx 0x100040600080100
rax 0xfffffd805f0eb4e0
r8 0x10
r9 0xfffffd806eacaaf0
r10 0xe840abd5b0d33c37
r11 0x1df5def016548ac7
r12 0x32
r13 0xfffffd805f0eb400
r14 0xfffffd806eacaaf0
r15 0xffff8000012fff60
rip 0xffffffff826af780 arp_rtrequest+0x660
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800037166000
ss 0x10
arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx
ddb{1}> show proc
PROC (syz-executor) tid=312530 pid=55829 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003b9831e8,0xffff80003b9822c8
process=0xffff80002f551018 user=0xffff800037161000, vmspace=0xfffffd806b2ee020
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
5113 20907 89779 0 2 0 syz-executor
55829 457841 6710 0 2 0 syz-executor
*55829 312530 6710 0 7 0x4000000 syz-executor
89408 144996 44045 0 2 0 syz-executor
89408 162458 44045 0 3 0x4000080 fsleep syz-executor
66093 108659 47813 0 2 0 syz-executor
66093 57289 47813 0 3 0x4000080 fsleep syz-executor
66093 105791 47813 0 3 0x4000080 fsleep syz-executor
66093 180592 47813 0 3 0x4000080 fsleep syz-executor
10410 162026 70071 0 2 0 syz-executor
10410 218253 70071 0 3 0x4000080 fsleep syz-executor
33893 153022 0 0 3 0x14200 bored sosplice
75366 55262 0 0 3 0x14200 acct acct
40076 95103 37498 0 3 0x100082 sbwait arp
37498 154203 59720 0 3 0x10008a sigsusp sh
89779 388712 64471 0 3 0x82 nanoslp syz-executor
65662 143011 64471 0 3 0x2 biowait syz-executor
59720 261462 64471 0 3 0x82 wait syz-executor
85270 104614 64471 0 3 0x82 nanoslp syz-executor
47813 313855 64471 0 3 0x82 nanoslp syz-executor
44045 187211 64471 0 3 0x82 nanoslp syz-executor
6710 48043 64471 0 3 0x82 nanoslp syz-executor
70071 261290 64471 0 3 0x82 nanoslp syz-executor
64471 347093 68170 0 3 0x82 kqread syz-executor
68170 59893 20451 0 3 0x10008a sigsusp ksh
20451 12372 26703 0 3 0x98 kqread sshd-session
26703 479182 68640 0 3 0x92 kqread sshd-session
49269 346383 1 0 3 0x100083 ttyopn getty
68640 476031 1 0 3 0x88 kqread sshd
9848 276708 4911 74 3 0x1100092 bpf pflogd
4911 291421 1 0 3 0x80 sbwait pflogd
90639 109588 50916 73 3 0x1100090 kqread syslogd
50916 234184 1 0 3 0x100082 sbwait syslogd
51606 191064 1 0 3 0x100080 kqread resolvd
23985 398068 10259 77 3 0x100092 kqread dhcpleased
86681 248886 10259 77 3 0x100092 kqread dhcpleased
10259 269317 1 0 3 0x80 kqread dhcpleased
27550 32376 0 0 3 0x14200 bored smr
76127 520625 0 0 2 0x14200 zerothread
64615 279091 0 0 3 0x14200 aiodoned aiodoned
27192 515022 0 0 3 0x14200 syncer update
69883 475279 0 0 3 0x14200 cleaner cleaner
13150 60230 0 0 3 0x14200 reaper reaper
94383 270300 0 0 3 0x14200 pgdaemon pagedaemon
93656 346676 0 0 3 0x14200 bored viomb
608 174500 0 0 3 0x40014200 acpi0 acpi0
5669 190527 0 0 3 0x40014200 idle1
71062 344130 0 0 3 0x14200 bored softnet3
67906 358430 0 0 3 0x14200 bored softnet2
88046 413618 0 0 3 0x14200 bored softnet1
43083 412247 0 0 2 0x14200 softnet0
97218 441971 0 0 7 0x14200 systqmp
80200 378660 0 0 3 0x14200 bored systq
30570 154457 0 0 3 0x14200 tmoslp softclockmp
19950 250386 0 0 3 0x40014200 tmoslp softclock
92097 192303 0 0 3 0x40014200 idle0
1 300857 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 55829 (syz-executor) thread 0xffff80003b982540 (312530)
Process 65662 (syz-executor) thread 0xffff8000ffff8020 (143011)
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10215 11104K 11424K 166960K 12519 0
pcb 17 16K 21K 166960K 453 0
rtable 221 7K 7K 166960K 428 0
pf 37 18K 21K 166960K 78 0
ifaddr 41 7K 7K 166960K 60 0
ifgroup 60 2K 2K 166960K 89 0
sysctl 4 1K 2K 166960K 7 0
counters 66 36K 36K 166960K 90 0
ioctlops 0 0K 4K 166960K 1672 0
iov 0 0K 32K 166960K 66 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1393 88K 88K 166960K 2203 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 15 0
VM map 2 1K 1K 166960K 2 0
sem 20 6K 6K 166960K 41 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1690 195K 286K 166960K 12468 0
file desc 18 65K 93K 166960K 966 0
sigio 0 0K 0K 166960K 17 0
proc 72 91K 128K 166960K 606 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 226 0
in_multi 85 6K 6K 166960K 117 0
ether_multi 1 0K 0K 166960K 2 0
mrt 0 0K 0K 166960K 3 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 457 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 2 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 229 73K 87K 166960K 10778 0
UVM aobj 75 6K 6K 166960K 78 0
pinsyscall 44 88K 106K 166960K 2073 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 61 0
NDP 13 0K 1K 166960K 40 0
temp 78 6900K 6996K 166960K 31252 0
kqueue 13 20K 30K 166960K 174 0
SYN cache 2 16K 16K 166960K 2 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 120 122 0 117 2 0 2 2 0 8 1
rtentry 112 123 0 25 4 1 3 4 0 8 0
unpcb 144 1110 0 1092 12 8 4 6 0 8 3
syncache 336 10 0 10 3 2 1 1 0 8 1
tcpqe 32 2 0 2 1 1 0 1 0 8 0
tcpcb 808 383 0 375 9 7 2 7 0 8 1
arp 120 21 0 1 1 0 1 1 0 8 0
ipq 40 2 0 2 1 1 0 1 0 8 0
ipqe 40 6 0 6 1 1 0 1 0 8 0
inpcb 376 1478 0 1467 18 15 3 15 0 8 1
nd6 136 25 0 2 1 0 1 1 0 8 0
pkpcb 40 6 0 6 2 1 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1168 10 0 10 2 1 1 1 0 8 1
pffrag 232 5 0 1 1 0 1 1 0 482 0
pffrnode 88 5 0 1 1 0 1 1 0 8 0
pffrent 40 8 0 4 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 1 0 1 1 1 0 1 0 8 0
pftag 88 2 0 1 2 1 1 1 0 8 0
pfstitem 24 59 0 14 1 0 1 1 0 8 0
pfstkey 128 59 0 14 2 0 2 2 0 8 0
pfstate 376 59 0 14 6 0 6 6 0 8 0
pfrule 1344 88 0 83 2 1 1 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 505 0 94 29 3 26 28 0 8 0
art_table 32 507 0 94 4 0 4 4 0 8 0
art_node 16 118 0 31 1 0 1 1 0 8 0
sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 30 0 12 1 0 1 1 0 8 0
shmpl 112 75 0 3 3 0 3 3 0 8 0
dirhash 1024 27 0 10 3 0 3 3 0 8 0
dino2pl 256 3287 0 1785 95 0 95 95 0 8 0
ffsino 280 3287 0 1785 109 0 109 109 0 8 0
nchpl 144 4755 0 4219 63 40 23 63 0 8 0
uvmvnodes 80 3784 0 0 78 0 78 78 0 8 0
vnodes 216 3784 0 0 211 0 211 211 0 8 0
namei 1024 15929 0 15928 4 2 2 2 0 8 1
percpumem 16 59 0 12 1 0 1 1 0 8 0
kstatmem 264 50 0 24 2 0 2 2 0 8 0
scsiplug 72 8 0 8 3 2 1 1 0 8 1
scxspl 216 13674 0 13673 9 8 1 8 1 8 0
plimitpl 152 171 0 154 1 0 1 1 0 8 0
sigapl 424 1274 0 1222 9 2 7 7 0 8 0
futexpl 64 13353 0 13348 1 0 1 1 0 8 0
knotepl 120 554 0 0 18 1 17 18 0 8 0
kqueuepl 216 320 0 311 5 4 1 5 0 8 0
pipepl 328 188 0 160 3 0 3 3 0 8 0
fdescpl 504 1254 0 1222 5 0 5 5 0 8 0
filepl 152 8672 0 8454 20 7 13 16 0 8 3
lockfpl 104 311 0 309 1 0 1 1 0 8 0
lockfspl 48 126 0 124 1 0 1 1 0 8 0
sessionpl 144 29 0 20 1 0 1 1 0 8 0
pgrppl 48 49 0 32 1 0 1 1 0 8 0
ucredpl 104 1617 0 1603 1 0 1 1 0 8 0
zombiepl 144 1223 0 1222 1 0 1 1 0 8 0
processpl 1168 1274 0 1222 5 0 5 5 0 8 0
procpl 648 2721 0 2663 7 1 6 6 0 8 0
srpgc 96 4 0 4 1 1 0 1 0 8 0
sosppl 168 3 0 2 2 1 1 1 0 8 0
sockpl 688 2724 0 2690 37 25 12 17 0 8 8
mcl64k 65536 3 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 115 0 0 15 0 15 15 0 8 0
mcl2k 2048 35 0 0 4 0 4 4 0 8 0
mtagpl 96 36 0 0 1 0 1 1 0 8 0
mbufpl 256 1185 0 0 74 0 74 74 0 8 0
bufpl 280 4019 0 135 278 0 278 278 0 8 0
anonpl 24 200314 0 194989 71 13 58 58 0 185 14
amapchunkpl 152 35114 0 34549 34 7 27 33 0 158 3
amappl16 200 4476 0 4405 33 18 15 17 0 8 8
amappl15 192 46 0 46 2 2 0 1 0 8 0
amappl14 184 126 0 112 1 0 1 1 0 8 0
amappl13 176 22 0 22 1 1 0 1 0 8 0
amappl12 168 1899 0 1866 4 1 3 3 0 8 0
amappl11 160 54 0 38 1 0 1 1 0 8 0
amappl10 152 4 0 4 1 1 0 1 0 8 0
amappl9 144 247 0 247 1 1 0 1 0 8 0
amappl8 136 27 0 24 1 0 1 1 0 8 0
amappl7 128 127 0 113 1 0 1 1 0 8 0
amappl6 120 182 0 178 1 0 1 1 0 8 0
amappl5 112 122 0 112 1 0 1 1 0 8 0
amappl4 104 357 0 337 1 0 1 1 0 8 0
amappl3 96 6967 0 6854 4 0 4 4 0 8 0
amappl2 88 703 0 637 2 0 2 2 0 8 0
amappl1 80 11915 0 11324 16 1 15 15 0 8 0
amappl 88 10313 0 10142 5 0 5 5 0 92 0
dma32768 32768 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
dma256 256 7 0 7 2 2 0 1 0 8 0
dma128 128 257 0 257 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 77 0 3 2 0 2 2 0 8 0
uaddrrnd 24 1254 0 1222 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1254 0 1222 1 0 1 1 0 8 0
vmmpekpl 168 11790 0 11750 3 0 3 3 0 8 0
vmmpepl 168 84993 0 83063 101 5 96 99 0 357 7
vmsppl 456 1253 0 1222 5 0 5 5 0 8 0
rwobjpl 64 29098 0 24222 80 0 80 80 0 8 0
pdppl 4096 2515 0 2444 107 32 75 85 0 8 4
pvpl 32 17601 0 0 142 0 142 142 0 265 0
pmappl 248 1253 0 1222 3 0 3 3 0 8 0
extentpl 40 55 0 38 1 0 1 1 0 8 0
phpool 112 365 0 51 9 0 9 9 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff834ccff0) 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
__mp_lock(ffffffff8360d908) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff8360d908) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a38c320,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153
witness_checkorder(ffffffff8356b398,9,0) at witness_checkorder+0x35
mtx_enter(ffffffff8356b388) at mtx_enter+0x47 sys/kern/kern_lock.c:238
msleep(ffffffff8356b370,ffffffff8356b388,20,ffffffff8314e05b,0) at msleep+0x2cf sys/kern/kern_synch.c:239
taskq_next_work(ffffffff8356b370,ffff80002a38c5b0) at taskq_next_work+0x8e sys/kern/kern_task.c:399
taskq_thread(ffffffff8356b370) at taskq_thread+0x1d5 sys/kern/kern_task.c:439
end trace frame: 0x0, count: 3
ddb{0}> trace
x86_ipi_db(ffffffff834ccff0) 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
__mp_lock(ffffffff8360d908) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff8360d908) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a38c320,ffff800000079f00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153
witness_checkorder(ffffffff8356b398,9,0) at witness_checkorder+0x35
mtx_enter(ffffffff8356b388) at mtx_enter+0x47 sys/kern/kern_lock.c:238
msleep(ffffffff8356b370,ffffffff8356b388,20,ffffffff8314e05b,0) at msleep+0x2cf sys/kern/kern_synch.c:239
taskq_next_work(ffffffff8356b370,ffff80002a38c5b0) at taskq_next_work+0x8e sys/kern/kern_task.c:399
taskq_thread(ffffffff8356b370) at taskq_thread+0x1d5 sys/kern/kern_task.c:439
end trace frame: 0x0, count: -12
ddb{0}> machine ddbcpu 1
Stopped at arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline]
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184
rtrequest(1,ffff800037166230,0,ffff8000371661b0,0) at rtrequest+0xbdc sys/net/route.c:1109
rtm_output(ffff800001315b00,ffff8000371662d8,ffff800037166230,0,0) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd805f0e9100,ffff80000133b0c8) at route_output+0x9a1 sys/net/rtsock.c:878
route_send(ffff80000133b0c8,fffffd805f0e9100,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(ffff80000133b0c8,0,ffff800037166478,0,0,802) at sosend+0x804
sendit(ffff80003b982540,4,ffff800037166570,802,ffff800037166620) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendto(ffff80003b982540,ffff8000371666d0,ffff800037166620) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557
syscall(ffff8000371666d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000371666d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7aebcf0f1c0, count: 5
ddb{1}> trace
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline]
arp_rtrequest(ffff800000039058,1,fffffd806eacaaf0) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184
rtrequest(1,ffff800037166230,0,ffff8000371661b0,0) at rtrequest+0xbdc sys/net/route.c:1109
rtm_output(ffff800001315b00,ffff8000371662d8,ffff800037166230,0,0) at rtm_output+0x855 sys/net/rtsock.c:973
route_output(fffffd805f0e9100,ffff80000133b0c8) at route_output+0x9a1 sys/net/rtsock.c:878
route_send(ffff80000133b0c8,fffffd805f0e9100,0,0) at route_send+0xd7 sys/net/rtsock.c:342
sosend(ffff80000133b0c8,0,ffff800037166478,0,0,802) at sosend+0x804
sendit(ffff80003b982540,4,ffff800037166570,802,ffff800037166620) at sendit+0x721 sys/kern/uipc_syscalls.c:779
sys_sendto(ffff80003b982540,ffff8000371666d0,ffff800037166620) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557
syscall(ffff8000371666d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff8000371666d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7aebcf0f1c0, count: -10