uvm_fault(0xffffffff83a0a7b0, 0xffff80000166d00a, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*389992 27653 0 0 0x4000000 0 syz-executor
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80002fcbce20,0,ffff80002fcbcd90,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff80000161e400,ffff80002fcbcec8,ffff80002fcbce20,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(fffff7806ae03000,ffff800001603150) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800001603150,fffff7806ae03000,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800001603150,0,ffff80002fcbd078,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002f0b0018,3,ffff80002fcbd170,808,ffff80002fcbd210) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002f0b0018,ffff80002fcbd2c0,ffff80002fcbd210) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002fcbd2c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002fcbd2c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x333c3fb2e40, 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(0xffffffff83a0a7b0, 0xffff80000166d00a, 0, 1) -> e
ddb> trace
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80002fcbce20,0,ffff80002fcbcd90,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff80000161e400,ffff80002fcbcec8,ffff80002fcbce20,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(fffff7806ae03000,ffff800001603150) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800001603150,fffff7806ae03000,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800001603150,0,ffff80002fcbd078,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002f0b0018,3,ffff80002fcbd170,808,ffff80002fcbd210) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002f0b0018,ffff80002fcbd2c0,ffff80002fcbd210) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002fcbd2c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002fcbd2c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x333c3fb2e40, count: -10
ddb> show registers
rdi 0xffff800039ce2000
rsi 0x676
rbp 0xffff80002fcbcc70
rbx 0xde
rdx 0xffff800039ce2000
rcx 0xffff80000166cf20
rax 0xfffff7806ae03fe0
r8 0x1000 __ALIGN_SIZE
r9 0
r10 0x196edc1e045a6137
r11 0xa7d7c4296565f5d2
r12 0x1e
r13 0xfffff7806ae03f00
r14 0xfffff7806c84dde8
r15 0xffff8000002a2058
rip 0xffffffff81a20754 arp_rtrequest+0x6a4
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002fcbcbf0
ss 0x10
arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx
ddb> show proc
PROC (syz-executor) tid=389992 pid=27653 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=0xffff80002f0b0548,0xffff80002f0b0fb8
process=0xffff80002f0adf98 user=0xffff80002fcb8000, vmspace=0xfffff7806ca52188
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75065 250592 16891 0 2 0 syz-executor
75065 30820 16891 0 3 0x4000080 fsleep syz-executor
27653 461239 44680 0 2 0 syz-executor
*27653 389992 44680 0 7 0x4000000 syz-executor
26990 43063 85962 0 2 0 syz-executor
26990 486750 85962 0 3 0x4000080 fsleep syz-executor
7634 7074 25810 0 2 0 syz-executor
7634 424845 25810 0 2 0x4000c80 syz-executor
96219 201394 95263 0 2 0xc80 syz-executor
96219 92660 95263 0 3 0x4000080 netcon syz-executor
96219 232816 95263 0 3 0x4000080 fsleep syz-executor
62730 148609 14242 0 3 0x80 nanoslp syz-executor
62730 512553 14242 0 3 0x4000080 fsleep syz-executor
62730 273674 14242 0 3 0x4000080 pppxread syz-executor
44680 169945 59971 0 3 0x82 nanoslp syz-executor
25810 411488 59971 0 2 0xc82 syz-executor
16891 456571 59971 0 3 0x82 nanoslp syz-executor
95263 428048 59971 0 3 0x82 nanoslp syz-executor
6191 80512 59971 0 3 0x82 nanoslp syz-executor
81169 151022 59971 0 2 0xc82 syz-executor
14242 485653 59971 0 3 0x82 nanoslp syz-executor
85962 172831 59971 0 3 0x82 nanoslp syz-executor
59971 41680 31621 0 3 0x82 kqread syz-executor
31621 288192 43112 0 3 0x10008a sigsusp ksh
43112 13846 33134 0 3 0x98 kqread sshd-session
33134 514054 17147 0 3 0x92 kqread sshd-session
93612 466482 1 0 3 0x100083 ttyin getty
17147 346203 1 0 3 0x88 kqread sshd
47810 471190 64370 73 3 0x1100090 kqread syslogd
64370 295161 1 0 3 0x100082 sbwait syslogd
55062 396304 1 0 3 0x100080 kqread resolvd
92350 57156 2057 77 3 0x100092 kqread dhcpleased
89070 190546 2057 77 3 0x100092 kqread dhcpleased
2057 224260 1 0 3 0x80 kqread dhcpleased
54166 418550 0 0 3 0x14200 bored smr
72313 476811 0 0 2 0x14200 zerothread
4053 86253 0 0 3 0x14200 aiodoned aiodoned
84734 457352 0 0 3 0x14200 syncer update
31228 339591 0 0 3 0x14200 cleaner cleaner
73979 16966 0 0 3 0x14200 reaper reaper
36599 298599 0 0 3 0x14200 pgdaemon pagedaemon
27705 20451 0 0 3 0x14200 bored viomb
23029 132136 0 0 3 0x40014200 acpi0 acpi0
82104 335788 0 0 3 0x14200 bored softnet0
96367 101972 0 0 3 0x14200 bored systqmp
123 390923 0 0 3 0x14200 bored systq
56546 509296 0 0 3 0x40014200 tmoslp softclock
98175 120166 0 0 3 0x40014200 idle0
1 172284 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 11043 12196K 16411K 166960K 12676 0
pcb 19 13K 13K 166960K 70 0
rtable 278 10K 10K 166960K 417 0
pf 30 12K 72K 166960K 54 0
ifaddr 42 7K 7K 166960K 53 0
ifgroup 50 2K 2K 166960K 72 0
sysctl 3 1K 9K 166960K 9 0
counters 33 17K 18K 166960K 42 0
ioctlops 0 0K 4K 166960K 72 0
iov 0 0K 16K 166960K 8 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1392 88K 88K 166960K 1669 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 6 0
VM map 2 1K 1K 166960K 2 0
sem 11 0K 0K 166960K 14 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 89K 166960K 381 0
sigio 0 0K 0K 166960K 6 0
proc 60 59K 83K 166960K 525 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 90 0
in_multi 99 7K 7K 166960K 106 0
ether_multi 1 0K 0K 166960K 1 0
mrt 0 0K 0K 166960K 8 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 61 281K 281K 166960K 61 0
exec 0 0K 1K 166960K 379 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 225 159K 175K 166960K 4944 0
UVM aobj 14 4K 4K 166960K 15 0
pinsyscall 39 78K 91K 166960K 1481 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 12 0
NDP 11 0K 2K 166960K 34 0
temp 47 9109K 9166K 166960K 16194 0
kqueue 13 20K 27K 166960K 69 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 58 0 54 1 0 1 1 0 8 0
rtentry 136 117 0 2 4 0 4 4 0 8 0
unpcb 144 210 0 195 2 0 2 2 0 8 1
syncache 336 4 0 4 1 0 1 1 0 8 1
tcpcb 736 60 0 55 1 0 1 1 0 8 0
arp 96 18 0 0 1 0 1 1 0 8 0
ipq 40 4 0 0 1 0 1 1 0 8 0
ipqe 40 4 0 0 1 0 1 1 0 8 0
inpcb 328 505 0 495 7 0 7 7 0 8 5
ip6q 72 1 0 0 1 0 1 1 0 8 0
ip6af 40 3 0 0 1 0 1 1 0 8 0
nd6 112 27 0 0 1 0 1 1 0 8 0
pkpcb 40 1 0 1 1 0 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1072 6 0 6 1 0 1 1 0 8 1
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 460 0 0 29 0 29 29 0 8 0
art_table 40 463 0 0 5 0 5 5 0 8 0
art_node 32 116 0 11 1 0 1 1 0 8 0
sysvmsgpl 40 7 0 3 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 72 11 0 2 1 0 1 1 0 8 0
shmpl 112 12 0 1 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 1998 0 543 92 0 92 92 0 8 0
ffsino 256 1998 0 543 92 0 92 92 0 8 0
nchpl 144 2531 0 835 64 0 64 64 0 8 0
rtmask 32 2 0 2 1 0 1 1 0 8 1
vnodes 216 2313 0 0 129 0 129 129 0 8 0
namei 1024 7993 0 7993 1 0 1 1 0 8 1
kstatmem 264 37 0 14 2 0 2 2 0 8 0
scsiplug 72 2 0 2 1 0 1 1 0 8 1
scxspl 216 8736 0 8736 3 0 3 3 1 8 3
plimitpl 152 58 0 41 1 0 1 1 0 8 0
sigapl 424 676 0 633 6 0 6 6 0 8 1
knotepl 120 12306 0 12259 10 0 10 10 0 8 8
kqueuepl 184 153 0 143 4 0 4 4 0 8 3
pipepl 304 143 0 115 3 0 3 3 0 8 0
fdescpl 448 663 0 633 5 0 5 5 0 8 1
filepl 120 3526 0 3306 11 0 11 11 0 8 3
lockfpl 104 100 0 98 1 0 1 1 0 8 0
lockfspl 48 46 0 44 1 0 1 1 0 8 0
sessionpl 144 35 0 27 1 0 1 1 0 8 0
pgrppl 48 48 0 32 1 0 1 1 0 8 0
ucredpl 104 310 0 299 1 0 1 1 0 8 0
zombiepl 144 635 0 633 1 0 1 1 0 8 0
processpl 1152 676 0 633 4 0 4 4 0 8 0
procpl 664 1035 0 984 6 0 6 6 0 8 1
sosppl 176 2 0 2 1 0 1 1 0 8 1
sockpl 552 779 0 750 10 0 10 10 0 8 7
mcl64k 65536 24 0 24 1 0 1 1 0 8 1
mcl16k 16384 5 0 5 1 0 1 1 0 8 1
mcl8k 8192 9 0 9 1 0 1 1 0 8 1
mcl4k 4096 2831 0 2774 14 0 14 14 0 8 6
mcl2k2 2112 1 0 1 1 0 1 1 0 8 1
mcl2k 2048 394 0 391 1 0 1 1 0 8 0
mtagpl 96 6 0 5 1 0 1 1 0 8 0
mbufpl 256 7001 0 6811 15 0 15 15 0 8 2
bufpl 280 3060 0 103 212 0 212 212 0 8 0
anonpl 24 110438 0 107201 44 0 44 44 0 186 22
amapchunkpl 152 15651 0 15167 34 0 34 34 0 158 15
amappl16 200 1745 0 1717 11 0 11 11 0 8 8
amappl15 192 4 0 4 1 0 1 1 0 8 1
amappl14 184 409 0 408 1 0 1 1 0 8 0
amappl13 176 120 0 110 1 0 1 1 0 8 0
amappl12 168 898 0 869 2 0 2 2 0 8 0
amappl11 160 1 0 1 1 0 1 1 0 8 1
amappl10 152 58 0 48 1 0 1 1 0 8 0
amappl9 144 294 0 294 1 0 1 1 0 8 1
amappl8 136 93 0 92 1 0 1 1 0 8 0
amappl7 128 143 0 131 1 0 1 1 0 8 0
amappl6 120 147 0 146 1 0 1 1 0 8 0
amappl5 112 91 0 84 1 0 1 1 0 8 0
amappl4 104 264 0 248 1 0 1 1 0 8 0
amappl3 96 2963 0 2850 4 0 4 4 0 8 1
amappl2 88 548 0 496 2 0 2 2 0 8 0
amappl1 80 11135 0 10584 13 0 13 13 0 8 1
amappl 88 4220 0 4058 5 0 5 5 0 92 1
uvmvnodes 80 105 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 7 0 7 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 14 0 1 1 0 1 1 0 8 0
uaddrrnd 24 663 0 633 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 663 0 633 1 0 1 1 0 8 0
vmmpekpl 168 7046 0 7015 2 0 2 2 0 8 0
vmmpepl 168 50005 0 48187 85 0 85 85 0 357 5
vmsppl 368 662 0 633 4 0 4 4 0 8 1
rwobjpl 40 16344 0 15385 12 0 12 12 0 8 0
pdppl 4096 1332 0 1266 92 26 66 78 0 8 0
pvpl 32 300089 0 290799 117 0 117 117 0 265 36
pmappl 216 662 0 633 2 0 2 2 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 359 0 26 10 0 10 10 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80002fcbce20,0,ffff80002fcbcd90,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff80000161e400,ffff80002fcbcec8,ffff80002fcbce20,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(fffff7806ae03000,ffff800001603150) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800001603150,fffff7806ae03000,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800001603150,0,ffff80002fcbd078,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002f0b0018,3,ffff80002fcbd170,808,ffff80002fcbd210) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002f0b0018,ffff80002fcbd2c0,ffff80002fcbd210) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002fcbd2c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002fcbd2c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x333c3fb2e40, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline]
arp_rtrequest(ffff8000002a2058,1,fffff7806c84dde8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226
rtrequest(1,ffff80002fcbce20,0,ffff80002fcbcd90,16) at rtrequest+0xdc1 sys/net/route.c:1114
rtm_output(ffff80000161e400,ffff80002fcbcec8,ffff80002fcbce20,0,16) at rtm_output+0x91a sys/net/rtsock.c:956
route_output(fffff7806ae03000,ffff800001603150) at route_output+0xa6a sys/net/rtsock.c:862
route_send(ffff800001603150,fffff7806ae03000,0,0) at route_send+0xd7 sys/net/rtsock.c:322
sosend(ffff800001603150,0,ffff80002fcbd078,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1
sendit(ffff80002f0b0018,3,ffff80002fcbd170,808,ffff80002fcbd210) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785
sys_sendto(ffff80002f0b0018,ffff80002fcbd2c0,ffff80002fcbd210) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563
syscall(ffff80002fcbd2c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002fcbd2c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x333c3fb2e40, count: -10