panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806cca6e00+16 0x0!=0xe5ed92f6193cb61e
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
458023 93166 0 0 0 1 syz-executor
*257344 90508 0 0x14000 0x200 0 softnet0
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83496177) at panic+0x1e5 sys/kern/subr_prf.c:198
pool_cache_get(ffffffff83992018) at pool_cache_get+0x3d4 sys/kern/subr_pool.c:1906
pool_get(ffffffff83992018,2) at pool_get+0xd6 sys/kern/subr_pool.c:-1
m_get(2,3) at m_get+0x7e sys/kern/uipc_mbuf.c:240
sbappendaddr(ffff800001642fd0,ffff80002a1efca0,fffffd8071fe0e00,0) at sbappendaddr+0x24a sys/kern/uipc_socket2.c:-1
udp_sbappend(fffffd806f978b88,fffffd8071fe0e00,fffffd8071fe0ee4,0,14,fffffd8071fe0ef8,67a913f04388dc4d,14,0) at udp_sbappend+0x4c1 sys/netinet/udp_usrreq.c:705
udp_input(ffff80002a1eff90,ffff80002a1eff9c,11,2,ffffffff83ac9d98) at udp_input+0x1a34 sys/netinet/udp_usrreq.c:-1
ip_deliver(ffff80002a1eff90,ffff80002a1eff9c,11,2,1,ffffffff83ac9d98) at ip_deliver+0x42c sys/netinet/ip_input.c:-1
ip_ours(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffffffff83ac9d98) at ip_ours+0xd7 sys/netinet/ip_input.c:259
ip_input_if(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffff800000c31000,ffffffff83ac9d98) at ip_input_if+0x45c sys/netinet/ip_input.c:-1
ipv4_input(ffff800000c31000,fffffd8071fe0e00,ffffffff83ac9d98) at ipv4_input+0x5a sys/netinet/ip_input.c:344
if_input_process(ffff800000c31000,ffff80002a1f0078,0) at if_input_process+0x495 sys/net/if.c:1080
ifiq_process(ffff800000c314b0) at ifiq_process+0xcd sys/net/ifq.c:864
end trace frame: 0xffff80002a1f0160, count: 0
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806cca6e00+16 0x0!=0xe5ed92f6193cb61e
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83496177) at panic+0x1e5 sys/kern/subr_prf.c:198
pool_cache_get(ffffffff83992018) at pool_cache_get+0x3d4 sys/kern/subr_pool.c:1906
pool_get(ffffffff83992018,2) at pool_get+0xd6 sys/kern/subr_pool.c:-1
m_get(2,3) at m_get+0x7e sys/kern/uipc_mbuf.c:240
sbappendaddr(ffff800001642fd0,ffff80002a1efca0,fffffd8071fe0e00,0) at sbappendaddr+0x24a sys/kern/uipc_socket2.c:-1
udp_sbappend(fffffd806f978b88,fffffd8071fe0e00,fffffd8071fe0ee4,0,14,fffffd8071fe0ef8,67a913f04388dc4d,14,0) at udp_sbappend+0x4c1 sys/netinet/udp_usrreq.c:705
udp_input(ffff80002a1eff90,ffff80002a1eff9c,11,2,ffffffff83ac9d98) at udp_input+0x1a34 sys/netinet/udp_usrreq.c:-1
ip_deliver(ffff80002a1eff90,ffff80002a1eff9c,11,2,1,ffffffff83ac9d98) at ip_deliver+0x42c sys/netinet/ip_input.c:-1
ip_ours(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffffffff83ac9d98) at ip_ours+0xd7 sys/netinet/ip_input.c:259
ip_input_if(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffff800000c31000,ffffffff83ac9d98) at ip_input_if+0x45c sys/netinet/ip_input.c:-1
ipv4_input(ffff800000c31000,fffffd8071fe0e00,ffffffff83ac9d98) at ipv4_input+0x5a sys/netinet/ip_input.c:344
if_input_process(ffff800000c31000,ffff80002a1f0078,0) at if_input_process+0x495 sys/net/if.c:1080
ifiq_process(ffff800000c314b0) at ifiq_process+0xcd sys/net/ifq.c:864
taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, count: -15
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a1ef890
rbx 0xffffffff8391de07 cpu_info_full_primary+0x2e07
rdx 0
rcx 0xffff8000ffffe7c8
rax 0xffffffff8391cff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xfe125ca559036b37
r11 0xd2b5fa0606d5b48f
r12 0xffffffff8391dc08 cpu_info_full_primary+0x2c08
r13 0
r14 0
r15 0x1
rip 0xffffffff827a3b95 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a1ef880
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (softnet0) tid=257344 pid=90508 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=32, usrpri=51, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000ffffe530,0xffff8000ffffea70
process=0xffff8000ffff84d0 user=0xffff80002a1eb000, vmspace=0xffffffff839ce468
estcpu=1, cpticks=29, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
93166 458023 44849 0 7 0 syz-executor
93166 48036 44849 0 2 0x4000000 syz-executor
14968 504324 97198 0 2 0 syz-executor
8022 104558 8250 0 2 0 syz-executor
8022 3383 8250 0 3 0x4000080 fsleep syz-executor
83165 424283 80640 60929 2 0x10 syz-executor
83165 97404 80640 60929 3 0x4000090 fsleep syz-executor
83165 50698 80640 60929 3 0x4000090 fsleep syz-executor
83165 127151 80640 60929 3 0x4000090 fsleep syz-executor
17022 366950 92529 0 2 0x1000000 syz-executor
17022 338899 92529 0 3 0x5000080 fsleep syz-executor
58195 67482 74224 60929 2 0x10 syz-executor
58195 309602 74224 60929 3 0x4000090 fsleep syz-executor
16580 509097 36175 60929 2 0x10 syz-executor
16580 377811 36175 60929 3 0x4000090 fsleep syz-executor
16580 166408 36175 60929 3 0x4000090 fsleep syz-executor
34108 155207 22321 0 2 0 syz-executor
34108 189913 22321 0 3 0x4000080 fsleep syz-executor
34108 317340 22321 0 2 0x4000000 syz-executor
36175 178220 99228 0 2 0xc82 syz-executor
92529 83454 99228 0 2 0xc82 syz-executor
6424 208053 1 0 3 0x100083 ttyopn getty
8250 506213 99228 0 3 0x82 nanoslp syz-executor
44849 216070 99228 0 3 0x82 nanoslp syz-executor
80640 449782 99228 0 2 0xc82 syz-executor
74224 410503 99228 0 2 0xc82 syz-executor
97198 198739 99228 0 3 0x82 nanoslp syz-executor
22321 64851 99228 0 2 0xc82 syz-executor
99228 104363 50912 0 3 0x82 kqread syz-executor
50912 328845 69928 0 3 0x10008a sigsusp ksh
69928 450790 13201 0 3 0x98 kqread sshd-session
13201 451783 60468 0 3 0x92 kqread sshd-session
60468 458466 1 0 3 0x88 kqread sshd
51521 107556 67774 74 3 0x1100092 bpf pflogd
67774 174164 1 0 3 0x80 sbwait pflogd
82570 392927 22118 73 3 0x1100090 kqread syslogd
22118 68710 1 0 3 0x100082 sbwait syslogd
26954 308563 1 0 3 0x100080 kqread resolvd
15971 251364 41631 77 3 0x100092 kqread dhcpleased
29876 20163 41631 77 3 0x100092 kqread dhcpleased
41631 49074 1 0 3 0x80 kqread dhcpleased
83430 201142 0 0 3 0x14200 bored smr
72746 340572 0 0 2 0x14200 zerothread
580 403204 0 0 3 0x14200 aiodoned aiodoned
92817 468457 0 0 3 0x14200 syncer update
49704 223083 0 0 3 0x14200 cleaner cleaner
38396 241540 0 0 3 0x14200 reaper reaper
1980 163442 0 0 3 0x14200 pgdaemon pagedaemon
26817 260426 0 0 3 0x14200 bored viomb
79233 265433 0 0 3 0x40014200 acpi0 acpi0
82753 214821 0 0 3 0x40014200 idle1
51673 86726 0 0 3 0x14200 bored softnet1
*90508 257344 0 0 7 0x14200 softnet0
22857 508408 0 0 3 0x14200 bored systqmp
57054 523130 0 0 3 0x14200 bored systq
45118 484156 0 0 3 0x14200 tmoslp softclockmp
21824 93201 0 0 3 0x40014200 tmoslp softclock
166 50492 0 0 3 0x40014200 idle0
1 417448 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex sbrcv r = 0 (0xffff800001643028)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 udp_sbappend+0x4a6 sys/netinet/udp_usrreq.c:705
#3 udp_input+0x1a34 sys/netinet/udp_usrreq.c:-1
#4 ip_deliver+0x42c sys/netinet/ip_input.c:-1
#5 ip_ours+0xd7 sys/netinet/ip_input.c:259
#6 ip_input_if+0x45c sys/netinet/ip_input.c:-1
#7 ipv4_input+0x5a sys/netinet/ip_input.c:344
#8 if_input_process+0x495 sys/net/if.c:1080
#9 ifiq_process+0xcd sys/net/ifq.c:864
#10 taskq_thread+0x157 sys/kern/kern_task.c:446
#11 proc_trampoline+0x10
Process 90508 (softnet0) thread 0xffff8000ffffe7c8 (257344)
shared rwlock netlock r = 0 (0xffffffff83962840)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 if_input_process+0x1c9 sys/net/if.c:1061
#3 ifiq_process+0xcd sys/net/ifq.c:864
#4 taskq_thread+0x157 sys/kern/kern_task.c:446
#5 proc_trampoline+0x10
shared rwlock softnet0 r = 0 (0xffff80000002c078)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
exclusive mutex sbrcv r = 0 (0xffff800001643028)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 udp_sbappend+0x4a6 sys/netinet/udp_usrreq.c:705
#3 udp_input+0x1a34 sys/netinet/udp_usrreq.c:-1
#4 ip_deliver+0x42c sys/netinet/ip_input.c:-1
#5 ip_ours+0xd7 sys/netinet/ip_input.c:259
#6 ip_input_if+0x45c sys/netinet/ip_input.c:-1
#7 ipv4_input+0x5a sys/netinet/ip_input.c:344
#8 if_input_process+0x495 sys/net/if.c:1080
#9 ifiq_process+0xcd sys/net/ifq.c:864
#10 taskq_thread+0x157 sys/kern/kern_task.c:446
#11 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11110 12104K 13041K 166960K 14574 0
pcb 17 16K 18K 166960K 752 0
rtable 238 20K 22K 166960K 1011 0
pf 46 20K 83K 166960K 268 0
ifaddr 41 7K 8K 166960K 171 0
ifgroup 60 2K 2K 166960K 253 0
sysctl 4 1K 9K 166960K 24 0
counters 74 37K 38K 166960K 260 0
ioctlops 0 0K 4K 166960K 1935 0
iov 0 0K 24K 166960K 113 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1505 95K 95K 166960K 3513 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 26 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 180 0
dirhash 12 2K 2K 166960K 48 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 240K 166960K 2252 0
sigio 0 0K 0K 166960K 73 0
proc 73 115K 164K 166960K 1010 0
subproc 72 4K 4K 166960K 153 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 322 0
in_multi 76 5K 7K 166960K 317 0
ether_multi 1 0K 0K 166960K 32 0
mrt 1 0K 0K 166960K 49 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 241 1076K 1076K 166960K 241 0
exec 0 0K 1K 166960K 885 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 240 151K 175K 166960K 22227 0
UVM aobj 59 18K 18K 166960K 65 0
pinsyscall 43 86K 106K 166960K 3622 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 194 0
NDP 14 0K 1K 166960K 113 0
temp 80 9084K 9152K 166960K 94603 0
kqueue 14 22K 33K 166960K 403 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 346 0 343 5 4 1 3 0 8 0
rtentry 176 288 0 208 7 2 5 6 0 8 0
unpcb 144 1461 0 1440 12 10 2 5 0 8 1
syncache 336 8 0 8 5 5 0 1 0 8 0
tcpqe 32 11 0 11 3 3 0 1 0 8 0
tcpcb 736 806 0 799 20 19 1 7 0 8 0
arp 136 47 0 33 1 0 1 1 0 8 0
inpcb 328 3077 0 3066 34 21 13 13 0 8 11
nd6 152 61 0 41 1 0 1 1 0 8 0
pkpcb 40 8 0 8 6 6 0 1 0 8 0
kcovpl 48 17 0 9 1 0 1 1 0 8 0
ppxss 1192 66 0 66 6 5 1 1 0 8 1
pppxif 1576 10 0 10 5 4 1 1 0 8 1
pfstscr 40 1 0 1 1 1 0 1 0 8 0
pffrag 232 16 0 5 1 0 1 1 0 482 0
pffrnode 88 14 0 5 1 0 1 1 0 8 0
pffrent 40 24 0 13 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 10 0 7 3 2 1 1 0 8 0
pfanchor 1288 1 0 0 1 0 1 1 0 8 0
pftag 88 4 0 0 1 0 1 1 0 8 0
pfstitem 24 188 0 103 1 0 1 1 0 8 0
pfstkey 128 192 0 107 3 0 3 3 0 8 0
pfstate 448 190 0 105 13 3 10 13 0 8 0
pfrule 1360 39 0 26 3 1 2 2 0 8 0
rttmr 136 3 0 3 3 3 0 1 0 8 0
art_heap8 4096 6 0 0 6 0 6 6 0 8 0
art_heap4 256 1247 0 896 40 14 26 29 0 8 1
art_table 40 1253 0 896 5 0 5 5 0 8 0
art_node 32 283 0 216 1 0 1 1 0 8 0
sysvmsgpl 40 43 0 3 2 1 1 1 0 8 0
semupl 112 3 0 3 3 3 0 1 0 8 0
semapl 112 173 0 163 1 0 1 1 0 8 0
shmpl 112 54 0 5 2 0 2 2 0 8 0
dirhash 1024 41 0 24 3 0 3 3 0 8 0
dino2pl 256 5607 0 4126 94 0 94 94 0 8 0
ffsino 296 5607 0 4126 116 1 115 115 0 8 0
nchpl 144 8537 0 6811 65 0 65 65 0 8 0
rtmask 32 10 0 10 5 4 1 1 0 8 1
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 30054 0 30054 6 5 1 2 0 8 1
percpumem 16 145 0 93 1 0 1 1 0 8 0
vcpupl 3968 8 0 1 1 0 1 1 0 8 0
vmpool 848 8 0 1 1 0 1 1 0 8 0
pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0
kstatmem 264 158 0 124 4 1 3 3 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 9 0 9 5 4 1 1 0 8 1
scxspl 216 77374 0 77374 13 12 1 8 1 8 1
plimitpl 152 719 0 700 1 0 1 1 0 8 0
sigapl 424 2542 0 2494 8 2 6 8 0 8 0
knotepl 120 801 0 0 24 0 24 24 0 8 0
kqueuepl 224 743 0 732 12 10 2 5 0 8 1
pipepl 344 392 0 364 3 0 3 3 0 8 0
fdescpl 528 2504 0 2472 3 0 3 3 0 8 0
filepl 160 16589 0 16358 33 17 16 16 0 8 3
lockfpl 104 1057 0 1053 3 2 1 2 0 8 0
lockfspl 48 413 0 409 1 0 1 1 0 8 0
sessionpl 144 36 0 27 1 0 1 1 0 8 0
pgrppl 48 83 0 66 1 0 1 1 0 8 0
ucredpl 104 2594 0 2578 1 0 1 1 0 8 0
zombiepl 144 3142 0 3142 2 1 1 1 0 8 1
processpl 1232 2542 0 2494 6 1 5 6 0 8 0
procpl 664 6154 0 6095 9 3 6 8 0 8 0
sosppl 176 16 0 15 7 6 1 1 0 8 0
sockpl 752 4976 0 4940 56 39 17 18 0 8 12
mcl64k 65536 11 0 0 2 0 2 2 0 8 0
mcl16k 16384 7 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 117 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 52 0 0 6 0 6 6 0 8 0
mtagpl 96 10 0 0 1 0 1 1 0 8 0
mbufpl 256 1879 0 0 115 0 115 115 0 8 0
bufpl 280 32362 0 26232 440 1 439 439 0 8 0
anonpl 32 14840 0 0 120 0 120 120 0 246 0
amapchunkpl 152 76944 0 76447 72 46 26 48 0 158 2
amappl16 200 10927 0 10894 102 93 9 35 0 8 0
amappl15 192 8 0 8 2 2 0 1 0 8 0
amappl14 184 537 0 536 1 0 1 1 0 8 0
amappl13 176 153 0 141 1 0 1 1 0 8 0
amappl12 168 2798 0 2768 2 0 2 2 0 8 0
amappl11 160 29 0 29 1 1 0 1 0 8 0
amappl10 152 67 0 53 1 0 1 1 0 8 0
amappl9 144 255 0 255 1 1 0 1 0 8 0
amappl8 136 163 0 160 1 0 1 1 0 8 0
amappl7 128 178 0 165 1 0 1 1 0 8 0
amappl6 120 249 0 247 1 0 1 1 0 8 0
amappl5 112 107 0 96 1 0 1 1 0 8 0
amappl4 104 347 0 324 1 0 1 1 0 8 0
amappl3 96 15463 0 15349 5 1 4 4 0 8 0
amappl2 88 622 0 561 2 0 2 2 0 8 0
amappl1 80 19720 0 19107 19 5 14 17 0 8 0
amappl 88 20984 0 20814 5 0 5 5 0 92 0
uvmvnodes 80 184 0 0 4 0 4 4 0 8 0
dma32768 32768 1 0 1 1 1 0 1 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 0
dma4096 4096 2 0 2 2 2 0 1 0 8 0
dma2048 2048 1 0 1 1 1 0 1 0 8 0
dma1024 1024 2 0 1 1 0 1 1 0 8 0
dma512 512 1 0 1 1 1 0 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 259 0 259 5 4 1 1 0 8 1
dma64 64 8 0 8 2 2 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 19 0 18 1 0 1 1 0 8 0
aobjpl 72 64 0 6 2 0 2 2 0 8 0
uaddrrnd 24 2504 0 2472 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2504 0 2472 1 0 1 1 0 8 0
vmmpekpl 168 20543 0 20493 3 0 3 3 0 8 0
vmmpepl 168 166045 0 164072 142 38 104 117 0 357 0
vmsppl 488 2503 0 2472 6 1 5 5 0 8 0
rwobjpl 80 46975 0 45785 42 5 37 38 0 8 0
pdppl 4096 5031 0 4953 126 47 79 85 0 8 1
pvpl 32 25480 0 0 206 1 205 205 0 265 0
pmappl 256 2511 0 2473 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 467 0 101 11 0 11 11 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff83496177) at panic+0x1e5 sys/kern/subr_prf.c:198
pool_cache_get(ffffffff83992018) at pool_cache_get+0x3d4 sys/kern/subr_pool.c:1906
pool_get(ffffffff83992018,2) at pool_get+0xd6 sys/kern/subr_pool.c:-1
m_get(2,3) at m_get+0x7e sys/kern/uipc_mbuf.c:240
sbappendaddr(ffff800001642fd0,ffff80002a1efca0,fffffd8071fe0e00,0) at sbappendaddr+0x24a sys/kern/uipc_socket2.c:-1
udp_sbappend(fffffd806f978b88,fffffd8071fe0e00,fffffd8071fe0ee4,0,14,fffffd8071fe0ef8,67a913f04388dc4d,14,0) at udp_sbappend+0x4c1 sys/netinet/udp_usrreq.c:705
udp_input(ffff80002a1eff90,ffff80002a1eff9c,11,2,ffffffff83ac9d98) at udp_input+0x1a34 sys/netinet/udp_usrreq.c:-1
ip_deliver(ffff80002a1eff90,ffff80002a1eff9c,11,2,1,ffffffff83ac9d98) at ip_deliver+0x42c sys/netinet/ip_input.c:-1
ip_ours(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffffffff83ac9d98) at ip_ours+0xd7 sys/netinet/ip_input.c:259
ip_input_if(ffff80002a1eff90,ffff80002a1eff9c,0,0,ffff800000c31000,ffffffff83ac9d98) at ip_input_if+0x45c sys/netinet/ip_input.c:-1
ipv4_input(ffff800000c31000,fffffd8071fe0e00,ffffffff83ac9d98) at ipv4_input+0x5a sys/netinet/ip_input.c:344
if_input_process(ffff800000c31000,ffff80002a1f0078,0) at if_input_process+0x495 sys/net/if.c:1080
ifiq_process(ffff800000c314b0) at ifiq_process+0xcd sys/net/ifq.c:864
taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, count: -15
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747fbbf3bcd0, count: 12
ddb{1}> trace
x86_ipi_db(ffff8000299bdff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x747fbbf3bcd0, count: -3