login: panic: receive 3: so 0xfffffd806f663300, so_type 3, m 0xfffffd806d605b00, m_type 0
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*231736 66861 0 0 0 0K dhclient
194590 61169 0 0x14000 0x200 1 reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821acc3d) at panic+0x15c sys/kern/subr_prf.c:207
soreceive(fffffd806f663300,0,ffff800020ab5888,0,0,ffff800020ab5794) at soreceive+0x1727
soo_read(fffffd80741f52f8,ffff800020ab5888,0) at soo_read+0x53 sys/kern/sys_socket.c:70
dofilereadv(ffff800020a6f3c8,6,ffff800020ab5888,0,ffff800020ab5970) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236
sys_read(ffff800020a6f3c8,ffff800020ab5920,ffff800020ab5970) at sys_read+0x83 sys/kern/sys_generic.c:156
syscall(ffff800020ab59f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800020ab59f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff55e0, count: 7
https://www.openbsd.org/ddb.html describes the minimum info required in bug
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ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
receive 3: so 0xfffffd806f663300, so_type 3, m 0xfffffd806d605b00, m_type 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821acc3d) at panic+0x15c sys/kern/subr_prf.c:207
soreceive(fffffd806f663300,0,ffff800020ab5888,0,0,ffff800020ab5794) at soreceive+0x1727
soo_read(fffffd80741f52f8,ffff800020ab5888,0) at soo_read+0x53 sys/kern/sys_socket.c:70
dofilereadv(ffff800020a6f3c8,6,ffff800020ab5888,0,ffff800020ab5970) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236
sys_read(ffff800020a6f3c8,ffff800020ab5920,ffff800020ab5970) at sys_read+0x83 sys/kern/sys_generic.c:156
syscall(ffff800020ab59f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800020ab59f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff55e0, count: -8
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020ab55d0
rbx 0xffff800020ab5680
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff8214b4ef kprintf+0x16f
r9 0x1
r10 0x5ed47fd2fff85656
r11 0x66082ab996609f12
r12 0x3000000008
r13 0xffff800020ab55e0
r14 0x100
r15 0x1
rip 0xffffffff817def38 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020ab55c0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (dhclient) pid=231736 stat=onproc
flags process=0 proc=0
pri=51, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff800020a6e770,0xffff800020a6f650
process=0xffff800020a9aaa8 user=0xffff800020ab0000, vmspace=0xfffffd807f007000
estcpu=1, cpticks=2, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
16823 400109 93850 0 3 0x82 thrsleep syz-execprog
16823 344857 93850 0 3 0x4000082 nanosleep syz-execprog
16823 109832 93850 0 3 0x4000082 thrsleep syz-execprog
16823 39055 93850 0 3 0x4000082 thrsleep syz-execprog
16823 152599 93850 0 3 0x4000082 thrsleep syz-execprog
16823 361740 93850 0 3 0x4000082 thrsleep syz-execprog
16823 375834 93850 0 3 0x4000082 thrsleep syz-execprog
16823 372845 93850 0 3 0x4000082 nanosleep syz-execprog
16823 81492 93850 0 3 0x4000082 wait syz-execprog
93850 123098 4100 0 3 0x10008a pause ksh
4100 55189 67674 0 3 0x92 select sshd
49898 95549 1 0 3 0x100083 ttyin getty
67674 85041 1 0 3 0x80 select sshd
62179 463956 94310 74 3 0x100092 bpf pflogd
94310 362060 1 0 3 0x80 netio pflogd
94825 296520 99791 73 3 0x100090 kqread syslogd
99791 99624 1 0 3 0x100082 netio syslogd
92880 502168 1 77 3 0x100090 poll dhclient
*66861 231736 1 0 7 0 dhclient
21040 343101 0 0 3 0x14200 pgzero zerothread
49715 186831 0 0 3 0x14200 aiodoned aiodoned
74245 413549 0 0 3 0x14200 syncer update
5135 354705 0 0 3 0x14200 cleaner cleaner
61169 194590 0 0 7 0x14200 reaper
77637 195292 0 0 3 0x14200 pgdaemon pagedaemon
13493 472547 0 0 3 0x14200 bored crynlk
18721 324590 0 0 3 0x14200 bored crypto
92416 165466 0 0 3 0x40014200 acpi0 acpi0
52715 327938 0 0 3 0x40014200 idle1
29111 404027 0 0 3 0x14200 bored softnet
12075 186978 0 0 3 0x14200 bored systqmp
21822 10478 0 0 3 0x14200 bored systq
33093 399340 0 0 3 0x40014200 bored softclock
72585 83919 0 0 3 0x40014200 idle0
14115 488667 0 0 3 0x14200 bored smr
1 240230 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex pvpl r = 0 (0xffffffff826478a8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_put+0x64 sys/kern/subr_pool.c:800
#4 pmap_do_remove+0x61b sys/arch/amd64/amd64/pmap.c:1794
#5 uvm_map_teardown+0x195 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#5 uvm_map_teardown+0x195 sys/uvm/uvm_map.c:2737
#6 uvmspace_free+0x86 sys/uvm/uvm_map.c:3611
#7 uvm_exit+0x29 sys/uvm/uvm_glue.c:297
#8 reaper+0x189 sys/kern/kern_exit.c:443
#9 proc_trampoline+0x1c
Process 66861 (dhclient) thread 0xffff800020a6f3c8 (231736)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82648518)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 solock+0x66 sys/kern/uipc_socket2.c:292
#2 soreceive+0xb3a sys/kern/uipc_socket.c:925
#3 soo_read+0x53 sys/kern/sys_socket.c:70
#4 dofilereadv+0x1a2 sys/kern/sys_generic.c:236
#5 sys_read+0x83 sys/kern/sys_generic.c:156
#6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#7 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9461 6393K 6395K 78643K 10556 0
pcb 13 8K 8K 78643K 13 0
rtable 63 2K 2K 78643K 167 0
ifaddr 29 8K 9K 78643K 39 0
counters 39 33K 33K 78643K 39 0
ioctlops 0 0K 4K 78643K 1468 0
mount 1 1K 1K 78643K 1 0
vnodes 1181 74K 74K 78643K 1186 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 196K 290K 78643K 12766 0
file desc 1 0K 12K 78643K 18 0
proc 59 63K 83K 78643K 398 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 1K 78643K 22 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 18 79K 79K 78643K 18 0
exec 0 0K 1K 78643K 197 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 78 12K 12K 78643K 969 0
UVM aobj 2 2K 2K 78643K 2 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 4 0K 0K 78643K 7 0
temp 28 3021K 3085K 78643K 3320 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 4 0 2 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 17 0 15 1 0 1 1 0 8 0
rtentry 112 34 0 11 1 0 1 1 0 8 0
unpcb 120 29 0 19 1 0 1 1 0 8 0
syncache 264 5 0 5 1 0 1 1 0 8 1
tcpcb 544 8 0 5 1 0 1 1 0 8 0
inpcb 280 34 0 28 1 0 1 1 0 8 0
nd6 48 2 0 2 1 0 1 1 0 8 1
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 10 0 0 1 0 1 1 0 8 0
pfstkey 112 10 0 0 1 0 1 1 0 8 0
pfstate 328 10 0 0 1 0 1 1 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 168 0 47 11 0 11 11 0 8 2
art_table 32 169 0 47 2 0 2 2 0 8 0
art_node 16 33 0 12 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino1pl 128 1424 0 20 46 0 46 46 0 8 0
ffsino 272 1424 0 20 94 0 94 94 0 8 0
nchpl 144 1650 0 38 60 0 60 60 0 8 0
uvmvnodes 72 1434 0 0 27 0 27 27 0 8 0
vnodes 208 1434 0 0 76 0 76 76 0 8 0
namei 1024 4157 0 4157 1 0 1 1 0 8 1
percpumem 16 30 0 0 1 0 1 1 0 8 0
scxspl 192 4124 0 4124 2 1 1 2 0 8 1
plimitpl 152 15 0 8 1 0 1 1 0 8 0
sigapl 432 225 0 213 2 0 2 2 0 8 0
knotepl 112 39 0 28 1 0 1 1 0 8 0
kqueuepl 104 2 0 0 1 0 1 1 0 8 0
pipepl 160 148 0 138 1 0 1 1 0 8 0
fdescpl 488 226 0 213 3 0 3 3 0 8 0
filepl 152 1137 0 1083 3 0 3 3 0 8 0
lockfpl 104 5 0 4 1 0 1 1 0 8 0
lockfspl 48 3 0 2 1 0 1 1 0 8 0
sessionpl 112 19 0 9 1 0 1 1 0 8 0
pgrppl 48 19 0 9 1 0 1 1 0 8 0
ucredpl 96 52 0 43 1 0 1 1 0 8 0
zombiepl 144 213 0 212 1 0 1 1 0 8 0
processpl 904 241 0 212 4 0 4 4 0 8 0
procpl 632 249 0 212 4 0 4 4 0 8 0
srpgc 64 2 0 2 1 0 1 1 0 8 1
sockpl 384 80 0 62 2 0 2 2 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 72 0 0 9 0 9 9 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 123 0 0 8 0 8 8 0 8 0
bufpl 280 5945 0 1340 329 0 329 329 0 8 0
anonpl 16 22162 0 20552 14 1 13 13 0 125 6
amapchunkpl 152 788 0 723 5 0 5 5 0 158 2
amappl16 192 81 0 55 2 0 2 2 0 8 0
amappl15 184 66 0 62 1 0 1 1 0 8 0
amappl14 176 26 0 23 1 0 1 1 0 8 0
amappl12 160 4 0 3 1 0 1 1 0 8 0
amappl11 152 52 0 37 1 0 1 1 0 8 0
amappl10 144 13 0 10 1 0 1 1 0 8 0
amappl9 136 436 0 434 1 0 1 1 0 8 0
amappl8 128 93 0 82 1 0 1 1 0 8 0
amappl7 120 101 0 89 1 0 1 1 0 8 0
amappl6 112 59 0 52 1 0 1 1 0 8 0
amappl5 104 125 0 111 1 0 1 1 0 8 0
amappl4 96 488 0 460 1 0 1 1 0 8 0
amappl3 88 124 0 116 1 0 1 1 0 8 0
amappl2 80 955 0 893 3 0 3 3 0 8 1
amappl1 72 15208 0 14780 26 8 18 21 0 8 8
amappl 80 474 0 446 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 226 0 213 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 226 0 213 1 0 1 1 0 8 0
vmmpekpl 168 6189 0 6165 2 0 2 2 0 8 0
vmmpepl 168 32880 0 31937 85 3 82 82 0 357 39
vmsppl 368 225 0 212 2 0 2 2 0 8 0
pdppl 4096 459 0 424 6 0 6 6 0 8 1
pvpl 32 112304 0 108386 115 0 115 115 0 265 81
pmappl 232 225 0 212 1 0 1 1 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 145 0 3 5 0 5 5 0 8 0
ddb{0}>