panic: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 996
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 19544 80025 0 0 0x4000000 0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8346cfaf) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83415271,ffffffff8337a0d2,3e4,ffffffff8338e63b) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80003c4e2dc8,f,ffff80003c4e2e68,0) at rtrequest+0xe24 sys/net/route.c:1092
rt_clone(ffff80003c4e2ed8,fffffd805cba8468,0) at rt_clone+0x9b sys/net/route.c:384
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rt_match sys/net/route.c:361 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rtalloc_mpath sys/net/route.c:477 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 sys/net/route.c:308
tcp_mss(ffff80000145d328,0) at tcp_mss+0x4b sys/netinet/tcp_input.c:-1
tcp_output(ffff80000145d328) at tcp_output+0x131d sys/netinet/tcp_output.c:528
tcp_connect(ffff80000158a038,fffffd806cd43300) at tcp_connect+0x554 sys/netinet/tcp_usrreq.c:694
sys_connect(ffff800033bef228,ffff80003c4e3330,ffff80003c4e3280) at sys_connect+0x345 sys/kern/uipc_syscalls.c:415
syscall(ffff80003c4e3330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4e3330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5638b3b65d0, count: 3
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: kernel diagnostic assertion "info->rti_ifa->ifa_ifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 996
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8346cfaf) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83415271,ffffffff8337a0d2,3e4,ffffffff8338e63b) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80003c4e2dc8,f,ffff80003c4e2e68,0) at rtrequest+0xe24 sys/net/route.c:1092
rt_clone(ffff80003c4e2ed8,fffffd805cba8468,0) at rt_clone+0x9b sys/net/route.c:384
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rt_match sys/net/route.c:361 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rtalloc_mpath sys/net/route.c:477 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 sys/net/route.c:308
tcp_mss(ffff80000145d328,0) at tcp_mss+0x4b sys/netinet/tcp_input.c:-1
tcp_output(ffff80000145d328) at tcp_output+0x131d sys/netinet/tcp_output.c:528
tcp_connect(ffff80000158a038,fffffd806cd43300) at tcp_connect+0x554 sys/netinet/tcp_usrreq.c:694
sys_connect(ffff800033bef228,ffff80003c4e3330,ffff80003c4e3280) at sys_connect+0x345 sys/kern/uipc_syscalls.c:415
syscall(ffff80003c4e3330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4e3330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5638b3b65d0, count: -12
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80003c4e2be0
rbx 0xffffffff8382fdd7 cpu_info_full_primary+0x2dd7
rdx 0
rcx 0xffff800033bef228
rax 0xffffffff8382eff0 cpu_info_full_primary+0x1ff0
r8 0
r9 0x8080808080808080
r10 0xc4c7de3a3102f5b1
r11 0x7a01e5d09e2f7879
r12 0xffffffff8382fbd8 cpu_info_full_primary+0x2bd8
r13 0
r14 0
r15 0x1
rip 0xffffffff82907a95 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80003c4e2bd0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=19544 pid=80025 tcnt=3 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=0xffff800033beef98,0xffff800033bf4a78
process=0xffff800033bf2208 user=0xffff80003c4de000, vmspace=0xfffffd805f09c7a8
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
80025 319545 90380 0 2 0 syz-executor
*80025 19544 90380 0 7 0x4000000 syz-executor
80025 2460 90380 0 3 0x4000080 fsleep syz-executor
23688 299366 53473 0 2 0 syz-executor
23688 234319 53473 0 3 0x4000080 fsleep syz-executor
86866 110697 45860 0 2 0xc80 syz-executor
86866 233618 45860 0 3 0x4000080 kqpoll syz-executor
86866 396797 45860 0 3 0x4000080 fsleep syz-executor
48544 427787 87084 0 2 0xc80 syz-executor
48544 443469 87084 0 3 0x4000080 kqsel syz-executor
48544 128691 87084 0 3 0x4000080 fsleep syz-executor
53031 216713 26349 0 2 0xc80 syz-executor
53031 267785 26349 0 3 0x4000080 rest syz-executor
53031 330263 26349 0 3 0x4000080 fsleep syz-executor
43254 398335 37777 -1 2 0xc90 syz-executor
43254 153698 37777 -1 3 0x4000090 kqpoll syz-executor
43254 140657 37777 -1 3 0x4000090 fsleep syz-executor
9911 387027 0 0 3 0x14280 nfsidl nfsio
71696 26603 0 0 3 0x14280 nfsidl nfsio
43201 155024 0 0 3 0x14280 nfsidl nfsio
21147 507904 0 0 3 0x14280 nfsidl nfsio
7501 261930 0 0 3 0x14280 nfsidl nfsio
7719 498587 0 0 3 0x14280 nfsidl nfsio
23615 427404 0 0 3 0x14280 nfsidl nfsio
27447 79844 0 0 3 0x14280 nfsidl nfsio
8836 323083 0 0 3 0x14280 nfsidl nfsio
75768 207695 0 0 3 0x14280 nfsidl nfsio
42872 140714 0 0 3 0x14280 nfsidl nfsio
7034 364968 0 0 3 0x14280 nfsidl nfsio
82935 102471 0 0 3 0x14280 nfsidl nfsio
80334 114869 0 0 3 0x14280 nfsidl nfsio
72823 7552 0 0 3 0x14280 nfsidl nfsio
92947 239658 0 0 3 0x14280 nfsidl nfsio
35492 307655 0 0 3 0x14280 nfsidl nfsio
4596 188341 0 0 3 0x14280 nfsidl nfsio
77526 413764 0 0 3 0x14280 nfsidl nfsio
35686 20639 0 0 3 0x14280 nfsidl nfsio
45704 378074 55930 0 2 0xc82 syz-executor
29588 204404 0 0 3 0x14200 bored sosplice
53473 21509 55930 0 2 0xc82 syz-executor
26349 178605 55930 0 2 0xc82 syz-executor
37777 41994 55930 0 2 0xc82 syz-executor
87084 271956 55930 0 2 0xc82 syz-executor
45860 43396 55930 0 2 0xc82 syz-executor
90380 319538 55930 0 2 0xc82 syz-executor
80924 90180 55930 0 2 0xc82 syz-executor
55930 121338 34814 0 3 0x82 kqread syz-executor
34814 151946 62922 0 3 0x10008a sigsusp ksh
62922 42823 53518 0 3 0x98 kqread sshd-session
53518 22069 35594 0 3 0x92 kqread sshd-session
29734 418933 1 0 3 0x100083 ttyin getty
35594 278119 1 0 3 0x88 kqread sshd
49783 468882 24094 74 3 0x1100092 bpf pflogd
24094 29305 1 0 3 0x80 sbwait pflogd
91238 8990 6112 73 3 0x1100090 kqread syslogd
6112 478549 1 0 3 0x100082 sbwait syslogd
8236 140972 1 0 3 0x100080 kqread resolvd
16060 93653 64524 77 3 0x100092 kqread dhcpleased
66396 331263 64524 77 3 0x100092 kqread dhcpleased
64524 255783 1 0 3 0x80 kqread dhcpleased
84437 389617 0 0 3 0x14200 bored smr
52494 499342 0 0 3 0x14200 pgzero zerothread
11562 268680 0 0 3 0x14200 aiodoned aiodoned
42208 276363 0 0 3 0x14200 syncer update
52049 208302 0 0 3 0x14200 cleaner cleaner
28223 191002 0 0 3 0x14200 reaper reaper
33969 265064 0 0 3 0x14200 pgdaemon pagedaemon
97100 448410 0 0 3 0x14200 bored viomb
95075 336142 0 0 3 0x40014200 acpi0 acpi0
61661 278114 0 0 7 0x40014200 idle1
65369 365475 0 0 3 0x14200 bored softnet3
20286 197655 0 0 3 0x14200 bored softnet2
91801 133928 0 0 3 0x14200 bored softnet1
65812 403733 0 0 3 0x14200 bored softnet0
84945 81508 0 0 3 0x14200 bored systqmp
46314 342505 0 0 3 0x14200 bored systq
44467 401283 0 0 3 0x14200 tmoslp softclockmp
64169 427012 0 0 2 0x40014200 softclock
33640 141534 0 0 3 0x40014200 idle0
1 97058 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 80025 (syz-executor) thread 0xffff800033bef228 (19544)
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10212 11115K 11606K 166960K 12899 0
pcb 18 14K 16K 166960K 287 0
rtable 257 8K 8K 166960K 459 0
pf 36 18K 19K 166960K 107 0
ifaddr 45 8K 8K 166960K 81 0
ifgroup 55 2K 2K 166960K 121 0
sysctl 3 1K 9K 166960K 10 0
counters 68 36K 37K 166960K 132 0
ioctlops 0 0K 4K 166960K 1564 0
iov 0 0K 12K 166960K 24 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1456 92K 92K 166960K 2068 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 9 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 87 0
dirhash 12 2K 2K 166960K 33 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 240K 166960K 798 0
sigio 1 0K 0K 166960K 12 0
proc 73 91K 128K 166960K 605 0
subproc 72 4K 4K 166960K 81 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 58 0
in_multi 99 7K 7K 166960K 126 0
ether_multi 1 0K 0K 166960K 3 0
mrt 1 0K 0K 166960K 5 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 79 360K 360K 166960K 79 0
exec 0 0K 1K 166960K 580 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 251 175K 189K 166960K 8881 0
UVM aobj 9 2K 2K 166960K 9 0
pinsyscall 43 86K 106K 166960K 1899 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 53 0
NDP 12 0K 2K 166960K 52 0
temp 63 8691K 8755K 166960K 44667 0
kqueue 15 24K 28K 166960K 139 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 77 0 74 1 0 1 1 0 8 0
rtentry 176 143 0 25 6 0 6 6 0 8 0
unpcb 144 425 0 406 5 1 4 4 0 8 3
syncache 336 5 0 5 2 1 1 1 0 8 1
tcpqe 32 6 0 6 1 0 1 1 0 8 1
tcpcb 808 332 0 324 10 2 8 8 0 8 7
arp 128 22 0 3 1 0 1 1 0 8 0
inpcb 328 892 0 879 16 7 9 13 0 8 7
nd6 144 28 0 3 1 0 1 1 0 8 0
pkpcb 40 8 0 8 2 1 1 1 0 8 1
kcovpl 48 9 0 1 1 0 1 1 0 8 0
mppekey 1024 2 0 2 1 1 0 1 0 8 0
ppxss 1192 24 0 24 2 1 1 1 0 8 1
pppxif 1504 6 0 6 2 1 1 1 0 8 1
pfstscr 40 1 0 0 1 0 1 1 0 8 0
pffrag 232 4 0 1 1 0 1 1 0 482 0
pffrnode 88 4 0 1 1 0 1 1 0 8 0
pffrent 40 6 0 3 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
pfstitem 24 58 0 16 1 0 1 1 0 8 0
pfstkey 128 58 0 16 2 0 2 2 0 8 0
pfstate 384 57 0 16 5 0 5 5 0 8 0
pfrule 1344 25 0 20 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 541 0 82 30 0 30 30 0 8 1
art_table 32 543 0 82 4 0 4 4 0 8 0
art_node 16 138 0 32 1 0 1 1 0 8 0
sysvmsgpl 40 9 0 7 2 1 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 85 0 75 1 0 1 1 0 8 0
shmpl 112 6 0 0 1 0 1 1 0 8 0
dirhash 1024 31 0 14 3 0 3 3 0 8 0
dino2pl 256 2728 0 1221 96 0 96 96 0 8 0
ffsino 288 2728 0 1221 109 0 109 109 0 8 0
nchpl 144 3761 0 2063 64 0 64 64 0 8 0
uvmvnodes 80 3311 0 0 68 0 68 68 0 8 0
vnodes 216 3311 0 0 184 0 184 184 0 8 0
namei 1024 12242 0 12242 1 0 1 1 0 8 1
percpumem 16 81 0 32 1 0 1 1 0 8 0
kstatmem 264 70 0 44 3 0 3 3 0 8 1
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 8 0 8 2 1 1 1 0 8 1
scxspl 216 18751 0 18751 10 8 2 8 1 8 2
plimitpl 152 187 0 170 1 0 1 1 0 8 0
sigapl 424 1104 0 1033 10 1 9 9 0 8 0
knotepl 120 308 0 0 10 0 10 10 0 8 0
kqueuepl 224 276 0 264 6 1 5 5 0 8 4
pipepl 336 323 0 294 14 3 11 14 0 8 8
fdescpl 520 1065 0 1033 3 0 3 3 0 8 0
filepl 160 6157 0 5924 28 9 19 23 0 8 7
lockfpl 104 266 0 263 2 1 1 2 0 8 0
lockfspl 48 62 0 59 1 0 1 1 0 8 0
sessionpl 144 25 0 16 1 0 1 1 0 8 0
pgrppl 48 46 0 29 1 0 1 1 0 8 0
ucredpl 104 627 0 612 1 0 1 1 0 8 0
zombiepl 144 1035 0 1033 1 0 1 1 0 8 0
processpl 1240 1104 0 1033 6 0 6 6 0 8 0
procpl 656 2120 0 2038 8 0 8 8 0 8 0
srpgc 96 2 0 2 1 1 0 1 0 8 0
sosppl 168 5 0 5 3 2 1 1 0 8 1
sockpl 728 1407 0 1368 21 8 13 16 0 8 9
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 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 116 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 29 0 0 4 1 3 4 0 8 0
mtagpl 96 32 0 0 1 0 1 1 0 8 0
mbufpl 256 226 0 0 14 0 14 14 0 8 0
bufpl 280 6795 0 653 439 0 439 439 0 8 0
anonpl 32 13093 0 0 106 0 106 106 0 246 0
amapchunkpl 152 28540 0 28008 32 5 27 30 0 158 5
amappl16 200 3540 0 3503 39 24 15 31 0 8 11
amappl15 192 4 0 4 1 1 0 1 0 8 0
amappl14 184 117 0 105 1 0 1 1 0 8 0
amappl13 176 6 0 6 1 1 0 1 0 8 0
amappl12 168 1739 0 1705 3 1 2 2 0 8 0
amappl11 160 54 0 39 1 0 1 1 0 8 0
amappl10 152 10 0 9 2 1 1 1 0 8 0
amappl9 144 248 0 248 1 1 0 1 0 8 0
amappl8 136 25 0 22 1 0 1 1 0 8 0
amappl7 128 118 0 106 1 0 1 1 0 8 0
amappl6 120 193 0 190 1 0 1 1 0 8 0
amappl5 112 126 0 117 1 0 1 1 0 8 0
amappl4 104 324 0 305 1 0 1 1 0 8 0
amappl3 96 5578 0 5459 6 2 4 4 0 8 0
amappl2 88 656 0 591 2 0 2 2 0 8 0
amappl1 80 11328 0 10729 16 2 14 15 0 8 0
amappl 88 8077 0 7900 5 0 5 5 0 92 0
dma16384 16384 1 0 1 1 0 1 1 0 8 1
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 6 0 6 1 1 0 1 0 8 0
dma128 128 254 0 254 2 1 1 1 0 8 1
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 19 0 18 1 0 1 1 0 8 0
aobjpl 72 8 0 0 1 0 1 1 0 8 0
uaddrrnd 24 1065 0 1033 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1065 0 1033 1 0 1 1 0 8 0
vmmpekpl 168 10235 0 10186 3 0 3 3 0 8 0
vmmpepl 168 72335 0 70292 107 2 105 105 0 357 3
vmsppl 480 1064 0 1033 6 1 5 5 0 8 0
rwobjpl 72 24413 0 20156 83 0 83 83 0 8 0
pdppl 4096 2137 0 2066 115 42 73 83 0 8 2
pvpl 32 23151 0 0 188 1 187 187 0 265 0
pmappl 256 1064 0 1033 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 426 0 52 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(ffffffff8346cfaf) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff83415271,ffffffff8337a0d2,3e4,ffffffff8338e63b) at __assert+0x29 sys/kern/subr_prf.c:-1
rtrequest(b,ffff80003c4e2dc8,f,ffff80003c4e2e68,0) at rtrequest+0xe24 sys/net/route.c:1092
rt_clone(ffff80003c4e2ed8,fffffd805cba8468,0) at rt_clone+0x9b sys/net/route.c:384
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rt_match sys/net/route.c:361 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 rtalloc_mpath sys/net/route.c:477 [inline]
route6_mpath(fffffd805cba8450,fffffd805cba8418,fffffd805cba8428,0) at route6_mpath+0x216 sys/net/route.c:308
tcp_mss(ffff80000145d328,0) at tcp_mss+0x4b sys/netinet/tcp_input.c:-1
tcp_output(ffff80000145d328) at tcp_output+0x131d sys/netinet/tcp_output.c:528
tcp_connect(ffff80000158a038,fffffd806cd43300) at tcp_connect+0x554 sys/netinet/tcp_usrreq.c:694
sys_connect(ffff800033bef228,ffff80003c4e3330,ffff80003c4e3280) at sys_connect+0x345 sys/kern/uipc_syscalls.c:415
syscall(ffff80003c4e3330) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4e3330) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5638b3b65d0, count: -12
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299ddff0) 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
acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218
sched_idle(ffff8000299ddff0) at sched_idle+0x448 sys/kern/kern_sched.c:178
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) 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
acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218
sched_idle(ffff8000299ddff0) at sched_idle+0x448 sys/kern/kern_sched.c:178
end trace frame: 0x0, count: -5