uvm_fault(0xffffffff8355a950, 0xffff80002794200c, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ufs_direnter+0x23c: movl 0(%r15),%r14d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
378325 14216 0 0x2 0 1 syz-executor
*337339 82696 0 0x2 0 0K syz-executor
ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764
ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179
VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70830ff31dc0, count: 9
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: uvm_fault(0xffffffff8355a950, 0xffff80002794200c, 0, 1) -> d
ddb{0}> trace
ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764
ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179
VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70830ff31dc0, count: -6
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002a0c2140
rbx 0xfffffd806def3670
rdx 0
rcx 0xffff8000371eb1e0
rax 0xffffffff83464ff0 cpu_info_full_primary+0x1ff0
r8 0xffffffffffffffff
r9 0
r10 0x748f63b30b9e3d20
r11 0x6705375c44b2ef54
r12 0xfffffd806c375700
r13 0xfffffd807345eb58
r14 0x200
r15 0xffff80002794200c
rip 0xffffffff81d57f9c ufs_direnter+0x23c
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a0c2090
ss 0
ufs_direnter+0x23c: movl 0(%r15),%r14d
ddb{0}> show proc
PROC (syz-executor) tid=337339 pid=82696 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000371eaa48,0xffff8000ffff27c8
process=0xffff8000372816b0 user=0xffff80002a0bd000, vmspace=0xfffffd806bd46530
estcpu=36, cpticks=1, pctcpu=0.2, user=1, sys=14, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
49660 75304 10496 0 2 0x10 syz-executor
49660 133545 10496 0 3 0x4000090 fsleep syz-executor
82550 182323 61772 0 2 0 syz-executor
82550 47624 61772 0 3 0x4000080 lockf syz-executor
30514 102005 66588 0 2 0 syz-executor
30514 79550 66588 0 2 0x4000000 syz-executor
96029 397515 12868 0 2 0 syz-executor
96029 105223 12868 0 3 0x4000080 fsleep syz-executor
96029 468867 12868 0 3 0x4000080 fsleep syz-executor
61772 90790 12559 0 2 0x482 syz-executor
12868 294512 12559 0 2 0x482 syz-executor
10496 285758 12559 0 2 0x482 syz-executor
14216 378325 12559 0 7 0x2 syz-executor
3848 114280 12559 0 2 0x482 syz-executor
*82696 337339 12559 0 7 0x2 syz-executor
45209 99334 12559 0 2 0x482 syz-executor
66588 280923 12559 0 2 0x482 syz-executor
84482 347040 0 0 3 0x14280 nfsidl nfsio
26498 130763 0 0 3 0x14280 nfsidl nfsio
15225 86307 0 0 3 0x14280 nfsidl nfsio
5954 451054 0 0 3 0x14280 nfsidl nfsio
32529 161066 0 0 3 0x14280 nfsidl nfsio
9064 523926 0 0 3 0x14280 nfsidl nfsio
46323 504225 0 0 3 0x14280 nfsidl nfsio
56608 107319 0 0 3 0x14280 nfsidl nfsio
55398 134468 0 0 3 0x14280 nfsidl nfsio
65853 33532 0 0 3 0x14280 nfsidl nfsio
11030 146294 0 0 3 0x14280 nfsidl nfsio
17144 152905 0 0 3 0x14280 nfsidl nfsio
75991 900 0 0 3 0x14280 nfsidl nfsio
11346 172263 0 0 3 0x14280 nfsidl nfsio
93970 155380 0 0 3 0x14280 nfsidl nfsio
64822 407897 0 0 3 0x14280 nfsidl nfsio
51814 108009 0 0 3 0x14280 nfsidl nfsio
93745 78723 0 0 3 0x14280 nfsidl nfsio
92880 251552 0 0 3 0x14280 nfsidl nfsio
19341 518379 0 0 3 0x14280 nfsidl nfsio
41129 268868 0 0 3 0x14200 acct acct
70999 60913 0 0 3 0x14200 bored sosplice
12559 407663 16255 0 3 0x82 kqread syz-executor
16255 608 1543 0 3 0x10008a sigsusp ksh
1543 306664 76731 0 3 0x98 kqread sshd-session
76731 46061 47052 0 3 0x92 kqread sshd-session
16813 469896 1 0 3 0x100083 ttyopn getty
47052 36755 1 0 3 0x88 kqread sshd
52601 265141 24055 74 3 0x1100092 bpf pflogd
24055 12347 1 0 3 0x80 sbwait pflogd
47277 159746 75580 73 3 0x1100090 kqread syslogd
75580 253023 1 0 3 0x100082 sbwait syslogd
53041 134578 1 0 3 0x100080 kqread resolvd
16367 125473 27228 77 3 0x100092 kqread dhcpleased
49146 79558 27228 77 3 0x100092 kqread dhcpleased
27228 167835 1 0 3 0x80 kqread dhcpleased
28541 346666 0 0 3 0x14200 bored smr
16289 181422 0 0 2 0x14200 zerothread
93656 244664 0 0 3 0x14200 aiodoned aiodoned
36804 373164 0 0 3 0x14200 syncer update
68902 121537 0 0 3 0x14200 cleaner cleaner
15585 63369 0 0 3 0x14200 reaper reaper
41540 471930 0 0 3 0x14200 pgdaemon pagedaemon
2311 390552 0 0 3 0x14200 bored viomb
45561 71737 0 0 3 0x40014200 acpi0 acpi0
60219 65116 0 0 3 0x40014200 idle1
66329 456068 0 0 3 0x14200 bored softnet3
23683 91050 0 0 3 0x14200 bored softnet2
48964 42698 0 0 3 0x14200 bored softnet1
38360 500168 0 0 2 0x14200 softnet0
88117 144731 0 0 3 0x14200 bored systqmp
33170 303460 0 0 3 0x14200 bored systq
82361 392484 0 0 3 0x14200 tmoslp softclockmp
99698 25556 0 0 2 0x40014200 softclock
94726 494344 0 0 3 0x40014200 idle0
1 485624 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 82696 (syz-executor) thread 0xffff8000371eb1e0 (337339)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83513ac8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 __mp_acquire_count+0x58
#2 mi_switch+0x658 sys/kern/sched_bsd.c:460
#3 sleep_finish+0x219 sys/kern/kern_synch.c:416
#4 biowait+0xc1 sys/kern/vfs_bio.c:1254
#5 bwrite+0x2e2 sys/kern/vfs_bio.c:766
#6 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646
#7 ufs_mkdir+0x581 sys/ufs/ufs/ufs_vnops.c:1160
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
#10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079b4a4e0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
#10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806def3708)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10213 10297K 10417K 166960K 12112 0
pcb 17 14K 16K 166960K 247 0
rtable 200 7K 8K 166960K 1068 0
pf 35 17K 25K 166960K 116 0
ifaddr 40 7K 7K 166960K 151 0
ifgroup 55 2K 2K 166960K 172 0
sysctl 3 1K 2K 166960K 6 0
counters 64 36K 36K 166960K 130 0
ioctlops 0 0K 4K 166960K 1606 0
iov 0 0K 16K 166960K 74 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1425 90K 90K 166960K 2080 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 1K 166960K 49 0
dirhash 12 2K 2K 166960K 24 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 16 57K 93K 166960K 1018 0
sigio 0 0K 0K 166960K 3 0
proc 73 91K 116K 166960K 1157 0
subproc 104 6K 6K 166960K 377 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 71 0
in_multi 90 6K 7K 166960K 365 0
ether_multi 1 0K 0K 166960K 2 0
mrt 0 0K 0K 166960K 2 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 721 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 225 72K 95K 166960K 9675 0
UVM aobj 21 2K 2K 166960K 22 0
pinsyscall 41 82K 103K 166960K 2673 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 34 0
NDP 12 0K 2K 166960K 107 0
temp 45 6816K 6887K 166960K 30820 0
kqueue 13 20K 28K 166960K 119 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 24 0 0 1 0 1 1 0 8 0
rtpcb 120 120 0 117 1 0 1 1 0 8 0
rtentry 112 362 0 272 5 1 4 4 0 8 0
unpcb 144 480 0 463 7 5 2 6 0 8 1
syncache 336 3 0 3 1 1 0 1 0 8 0
tcpcb 808 262 0 258 8 0 8 8 0 8 7
arp 120 61 0 43 1 0 1 1 0 8 0
inpcb 336 1021 0 1011 14 7 7 7 0 8 6
nd6 136 93 0 70 1 0 1 1 0 8 0
pkpcb 40 1 0 1 1 1 0 1 0 8 0
kcovpl 48 29 0 21 1 0 1 1 0 8 0
ppxss 1168 8 0 8 3 2 1 1 0 8 1
pfstscr 40 1 0 1 1 1 0 1 0 8 0
pffrag 232 5 0 0 1 0 1 1 0 482 0
pffrnode 88 5 0 0 1 0 1 1 0 8 0
pffrent 40 8 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 88 0 48 1 0 1 1 0 8 0
pfstkey 128 90 0 49 2 0 2 2 0 8 0
pfstate 376 88 0 49 4 0 4 4 0 8 0
pfrule 1344 22 0 18 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1517 0 1100 36 7 29 31 0 8 1
art_table 32 1518 0 1100 5 1 4 4 0 8 0
art_node 16 359 0 277 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0
semapl 112 46 0 36 1 0 1 1 0 8 0
shmpl 112 19 0 1 1 0 1 1 0 8 0
dirhash 1024 25 0 8 3 0 3 3 0 8 0
dino2pl 256 2604 0 1064 97 0 97 97 0 8 0
ffsino 272 2604 0 1064 104 0 104 104 0 8 0
nchpl 144 3624 0 3073 64 31 33 64 0 8 8
uvmvnodes 80 3262 0 0 67 0 67 67 0 8 0
vnodes 216 3262 0 0 182 0 182 182 0 8 0
namei 1024 14056 0 14055 3 2 1 2 0 8 0
percpumem 16 79 0 33 1 0 1 1 0 8 0
kstatmem 264 90 0 66 2 0 2 2 0 8 0
scxspl 216 18543 0 18543 12 9 3 8 1 8 3
plimitpl 152 151 0 133 1 0 1 1 0 8 0
sigapl 424 1308 0 1238 10 1 9 9 0 8 0
futexpl 64 8515 0 8512 5 4 1 1 0 8 0
knotepl 120 374 0 0 10 0 10 10 0 8 0
kqueuepl 216 327 0 318 8 0 8 8 0 8 7
pipepl 320 358 0 330 13 7 6 8 0 8 3
fdescpl 496 1268 0 1238 7 2 5 5 0 8 0
filepl 152 6481 0 6221 25 9 16 18 0 8 5
lockfpl 104 260 0 255 1 0 1 1 0 8 0
lockfspl 48 80 0 77 1 0 1 1 0 8 0
sessionpl 144 43 0 34 1 0 1 1 0 8 0
pgrppl 48 79 0 62 1 0 1 1 0 8 0
ucredpl 104 895 0 881 1 0 1 1 0 8 0
zombiepl 144 1240 0 1238 1 0 1 1 0 8 0
processpl 1160 1308 0 1238 7 1 6 6 0 8 0
procpl 648 2252 0 2177 9 1 8 8 0 8 0
srpgc 96 2 0 2 1 0 1 1 0 8 1
sosppl 168 2 0 2 2 2 0 1 0 8 0
sockpl 664 1629 0 1599 21 12 9 14 0 8 6
mcl64k 65536 3 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 224 0 0 28 0 28 28 0 8 0
mtagpl 96 70 0 0 2 0 2 2 0 8 0
mbufpl 256 379 0 0 22 0 22 22 0 8 0
bufpl 280 8023 0 1837 443 0 443 443 0 8 0
anonpl 24 167510 0 164097 77 27 50 77 0 185 20
amapchunkpl 152 30254 0 29793 39 16 23 38 0 158 2
amappl16 200 2097 0 2068 35 25 10 15 0 8 8
amappl15 192 3 0 3 1 1 0 1 0 8 0
amappl14 184 155 0 143 1 0 1 1 0 8 0
amappl13 176 1 0 1 1 1 0 1 0 8 0
amappl12 168 2257 0 2227 3 1 2 2 0 8 0
amappl11 160 48 0 34 1 0 1 1 0 8 0
amappl10 152 8 0 8 1 1 0 1 0 8 0
amappl9 144 236 0 236 1 1 0 1 0 8 0
amappl8 136 18 0 16 1 0 1 1 0 8 0
amappl7 128 147 0 135 1 0 1 1 0 8 0
amappl6 120 372 0 371 1 0 1 1 0 8 0
amappl5 112 212 0 200 1 0 1 1 0 8 0
amappl4 104 379 0 359 1 0 1 1 0 8 0
amappl3 96 5856 0 5751 6 2 4 4 0 8 1
amappl2 88 954 0 886 2 0 2 2 0 8 0
amappl1 80 11494 0 10933 13 0 13 13 0 8 0
amappl 88 9090 0 8928 6 1 5 5 0 92 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 6 0 6 1 1 0 1 0 8 0
dma128 128 255 0 255 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 21 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1268 0 1238 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1268 0 1238 1 0 1 1 0 8 0
vmmpekpl 168 11485 0 11430 3 0 3 3 0 8 0
vmmpepl 168 79691 0 77880 108 13 95 95 0 357 11
vmsppl 440 1267 0 1238 6 2 4 5 0 8 0
rwobjpl 56 25738 0 21539 63 2 61 61 0 8 1
pdppl 4096 2543 0 2476 129 58 71 85 0 8 4
pvpl 32 42762 0 0 345 0 345 345 0 265 0
pmappl 248 1267 0 1238 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 456 0 79 11 0 11 11 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ufs_direnter(fffffd8078924128,fffffd807345eb58,ffff80002a0c2150,ffff80002a0c2470,fffffd807ba86140) at ufs_direnter+0x23c sys/ufs/ufs/ufs_lookup.c:764
ufs_mkdir(ffff80002a0c22e0) at ufs_mkdir+0x60f sys/ufs/ufs/ufs_vnops.c:1179
VOP_MKDIR(fffffd8078924128,ffff80002a0c2440,ffff80002a0c2470,ffff80002a0c2370) at VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
domkdirat(ffff8000371eb1e0,ffffff9c,70830ff31d30,1ff) at domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
syscall(ffff80002a0c25f0) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0c25f0) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70830ff31dc0, count: -6
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff800029b7bff0) 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff80002a11c080) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline]
syscall(ffff80002a11c080) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x734b2c797d20, count: 9
ddb{1}> trace
x86_ipi_db(ffff800029b7bff0) 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(ffffffff835138c0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff835138c0) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff80002a11c080) at syscall+0x2cc mi_syscall sys/sys/syscall_mi.h:156 [inline]
syscall(ffff80002a11c080) at syscall+0x2cc sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x734b2c797d20, count: -6