uvm_fault(0xffffffff8350c700, 0xffff8000011ea008, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*457962 33393 32767 0x102010 0x4080000 0K syz-executor
255547 640 32767 0x10 0x4000000 1 syz-executor
unveil_add_vnode(ffff8000371cf6f0,fffffd806b449618) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391
unveil_add(ffff8000371cf6f0,ffff80002a0d2358,ffff80002a0d2413) at unveil_add+0x448 sys/kern/kern_unveil.c:494
sys_unveil(ffff8000371cf6f0,ffff80002a0d2540,ffff80002a0d2490) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020
syscall(ffff80002a0d2540) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d2540) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb96735b4a90, count: 10
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(0xffffffff8350c700, 0xffff8000011ea008, 0, 2) -> e
ddb{0}> trace
unveil_add_vnode(ffff8000371cf6f0,fffffd806b449618) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391
unveil_add(ffff8000371cf6f0,ffff80002a0d2358,ffff80002a0d2413) at unveil_add+0x448 sys/kern/kern_unveil.c:494
sys_unveil(ffff8000371cf6f0,ffff80002a0d2540,ffff80002a0d2490) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020
syscall(ffff80002a0d2540) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d2540) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb96735b4a90, count: -5
ddb{0}> show registers
rdi 0xffff800037e38000
rsi 0x10ac __ALIGN_SIZE+0xac
rbp 0xffff80002a0d2280
rbx 0xffff8000309771f0
rdx 0xffff800037e38000
rcx 0x10ab __ALIGN_SIZE+0xab
rax 0xffffffffffffffff
r8 0x40
r9 0xfffffd807f7d3478
r10 0x8670df9573af0fae
r11 0xdd9d796f268fcf8
r12 0xfffffd806b449618
r13 0
r14 0xffff8000011ea000
r15 0
rip 0xffffffff82b218ba unveil_add_vnode+0xda
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a0d2210
ss 0x10
unveil_add_vnode+0xda: movq %rax,0x8(%r14,%r13,1)
ddb{0}> show proc
PROC (syz-executor) tid=457962 pid=33393 tcnt=3 stat=onproc
flags process=102010<SUGID,SINGLEUNWIND,PLEDGE> proc=4080000<SUSPSINGLE,THREAD>
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff8000371cf468 scnt=1 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000371cea48,0xffff8000371cf478
process=0xffff8000309771f0 user=0xffff80002a0cd000, vmspace=0xfffffd806cf09540
estcpu=6, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
33393 192743 30751 32767 4 0x182010 syz-executor
*33393 457962 30751 32767 7 0x4182010 syz-executor
33393 383873 30751 32767 3 0x4102010 suspend syz-executor
7104 443991 36394 0 2 0x2 syz-executor
27086 455037 41395 32767 2 0x10 syz-executor
27086 372100 41395 32767 3 0x4000090 sbwait syz-executor
95270 54842 23196 32767 2 0x10 syz-executor
95270 472694 23196 32767 3 0x4000090 fsleep syz-executor
640 463265 78936 32767 2 0x10 syz-executor
640 149424 78936 32767 3 0x4000090 kqpoll syz-executor
640 255547 78936 32767 7 0x4000010 syz-executor
84965 119071 17908 32767 2 0x10 syz-executor
17908 484196 36394 0 3 0x82 wait syz-executor
1883 278603 71760 32767 2 0x10 syz-executor
78936 358785 10507 32767 2 0x490 syz-executor
10507 474687 36394 0 3 0x82 wait syz-executor
71760 64041 36394 0 3 0x82 wait syz-executor
41395 42342 71418 32767 2 0x490 syz-executor
30751 511824 95018 32767 2 0x490 syz-executor
83295 330326 51365 32767 2 0x490 syz-executor
23196 324353 12102 32767 2 0x490 syz-executor
71418 78437 36394 0 3 0x82 wait syz-executor
95018 89956 36394 0 3 0x82 wait syz-executor
51365 84274 36394 0 3 0x82 wait syz-executor
12102 118453 36394 0 3 0x82 wait syz-executor
36394 374916 10969 0 3 0x82 kqread syz-executor
10969 354105 45445 0 3 0x10008a sigsusp ksh
45445 247457 98425 0 3 0x98 kqread sshd-session
98425 478938 886 0 3 0x92 kqread sshd-session
40850 184788 1 0 3 0x100083 ttyin getty
886 99137 1 0 3 0x88 kqread sshd
42102 157742 48169 73 2 0x1100010 syslogd
48169 284838 1 0 3 0x100082 sbwait syslogd
18659 420266 1 0 3 0x100080 kqread resolvd
24783 469256 26584 77 3 0x100092 kqread dhcpleased
8675 470289 26584 77 3 0x100092 kqread dhcpleased
26584 182622 1 0 3 0x80 kqread dhcpleased
63268 79678 0 0 3 0x14200 bored smr
85440 472852 0 0 3 0x14200 pgzero zerothread
27483 415933 0 0 3 0x14200 aiodoned aiodoned
17902 287706 0 0 3 0x14200 syncer update
58410 35785 0 0 3 0x14200 cleaner cleaner
96739 233291 0 0 3 0x14200 reaper reaper
99863 308249 0 0 3 0x14200 pgdaemon pagedaemon
35643 338785 0 0 3 0x14200 bored viomb
50181 311312 0 0 3 0x40014200 acpi0 acpi0
47659 141185 0 0 3 0x40014200 idle1
92964 459318 0 0 3 0x14200 bored softnet3
26357 17437 0 0 3 0x14200 bored softnet2
38045 30689 0 0 3 0x14200 bored softnet1
3371 149403 0 0 3 0x14200 bored softnet0
41950 23873 0 0 3 0x14200 bored systqmp
2832 79173 0 0 3 0x14200 bored systq
36533 79560 0 0 3 0x14200 tmoslp softclockmp
78 262048 0 0 3 0x40014200 tmoslp softclock
82240 91409 0 0 3 0x40014200 idle0
1 302934 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 33393 (syz-executor) thread 0xffff8000371cf6f0 (457962)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835c2918)
#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 rw_enter+0x348 sys/kern/kern_rwlock.c:285
#5 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#6 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#7 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#8 vget+0x2bd sys/kern/vfs_subr.c:676
#9 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95
#10 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#11 ufs_lookup+0x1631 sys/ufs/ufs/ufs_lookup.c:555
#12 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#13 unveil_find_cover+0x16d sys/kern/kern_unveil.c:277
#14 unveil_add_vnode+0xd1 sys/kern/kern_unveil.c:391
#15 unveil_add+0x448 sys/kern/kern_unveil.c:494
#16 sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020
#17 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#17 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#18 Xsyscall+0x128
Process 640 (syz-executor) thread 0xffff8000371cea48 (255547)
shared rwlock vmmaplk r = 0 (0xfffffd806cf097e8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785
#2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672
#3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600
#4 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279
#5 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332
#6 alltraps_kern_meltdown+0x7b
#7 copyout+0x57
#8 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 42102 (syslogd) thread 0xffff8000ffffdbe8 (157742)
exclusive rrwlock inode r = 0 (0xfffffd806e717810)
#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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2927
#6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#7 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10180 10024K 10036K 166960K 11309 0
pcb 17 12K 12K 166960K 17 0
rtable 228 6K 7K 166960K 815 0
pf 31 16K 16K 166960K 66 0
ifaddr 41 7K 7K 166960K 108 0
ifgroup 50 2K 2K 166960K 119 0
sysctl 2 0K 0K 166960K 2 0
counters 64 36K 36K 166960K 98 0
ioctlops 0 0K 2K 166960K 45 0
iov 0 0K 4K 166960K 5 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1453 91K 91K 166960K 1589 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 7 0K 0K 166960K 7 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 21 74K 161K 166960K 467 0
sigio 0 0K 0K 166960K 1 0
proc 56 78K 176K 166960K 901 0
subproc 91 5K 12K 166960K 312 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 25 0
in_multi 98 7K 7K 166960K 271 0
ether_multi 1 0K 0K 166960K 2 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 583 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 218 65K 131K 166960K 4696 0
UVM aobj 5 2K 2K 166960K 5 0
pinsyscall 42 84K 128K 166960K 1882 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 7 0
NDP 26 2K 2K 166960K 72 0
temp 32 6814K 6879K 166960K 5997 0
kqueue 14 22K 26K 166960K 35 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 84 0 80 1 0 1 1 0 8 0
rtentry 112 278 0 171 4 0 4 4 0 8 0
unpcb 144 257 0 240 2 1 1 2 0 8 0
syncache 336 6 0 6 4 3 1 1 0 8 1
tcpqe 32 3 0 3 2 2 0 1 0 8 0
tcpcb 808 46 0 37 2 0 2 2 0 8 0
arp 120 48 0 32 1 0 1 1 0 8 0
inpcb 336 197 0 185 3 1 2 2 0 8 0
nd6 136 70 0 46 1 0 1 1 0 8 0
kcovpl 48 24 0 17 1 0 1 1 0 8 0
rttmr 136 1 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1126 0 673 39 10 29 29 0 8 0
art_table 32 1127 0 673 4 0 4 4 0 8 0
art_node 16 277 0 180 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 5 0 0 1 0 1 1 0 8 0
shmpl 112 2 0 0 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 1674 0 142 96 0 96 96 0 8 0
ffsino 272 1674 0 142 103 0 103 103 0 8 0
nchpl 144 1965 0 259 64 0 64 64 0 8 0
uvmvnodes 80 1995 0 0 41 0 41 41 0 8 0
vnodes 216 1995 0 0 111 0 111 111 0 8 0
namei 1024 7455 0 7453 3 2 1 1 0 8 0
percpumem 16 63 0 17 1 0 1 1 0 8 0
kstatmem 264 56 0 34 2 0 2 2 0 8 0
scxspl 216 12850 0 12850 12 6 6 8 1 8 6
plimitpl 152 81 0 58 2 0 2 2 0 8 0
sigapl 424 717 0 663 10 1 9 9 0 8 2
futexpl 64 1213 0 1212 3 2 1 1 0 8 0
knotepl 120 303 0 0 10 0 10 10 0 8 0
kqueuepl 216 43 0 32 1 0 1 1 0 8 0
pipepl 320 169 0 141 5 1 4 5 0 8 0
fdescpl 496 699 0 666 10 3 7 7 0 8 1
filepl 152 2541 0 2313 14 1 13 14 0 8 1
lockfpl 104 39 0 37 1 0 1 1 0 8 0
lockfspl 48 18 0 16 1 0 1 1 0 8 0
sessionpl 144 36 0 21 1 0 1 1 0 8 0
pgrppl 48 63 0 40 1 0 1 1 0 8 0
ucredpl 104 207 0 189 1 0 1 1 0 8 0
zombiepl 144 666 0 663 1 0 1 1 0 8 0
processpl 1160 717 0 663 6 0 6 6 0 8 1
procpl 648 870 0 810 7 1 6 7 0 8 0
srpgc 96 2 0 2 1 1 0 1 0 8 0
sockpl 664 538 0 505 5 1 4 4 0 8 0
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 250 0 0 32 0 32 32 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 300 0 0 18 0 18 18 0 8 1
bufpl 280 5581 0 89 393 0 393 393 0 8 0
anonpl 24 227829 0 224181 77 4 73 77 0 185 39
amapchunkpl 152 16177 0 15715 45 5 40 44 0 158 17
amappl16 200 6111 0 6072 15 12 3 13 0 8 0
amappl15 192 18 0 18 1 1 0 1 0 8 0
amappl14 184 139 0 129 1 0 1 1 0 8 0
amappl13 176 10 0 10 1 1 0 1 0 8 0
amappl12 168 1559 0 1527 3 0 3 3 0 8 1
amappl11 160 51 0 40 1 0 1 1 0 8 0
amappl10 152 15 0 15 1 1 0 1 0 8 0
amappl9 144 143 0 143 1 1 0 1 0 8 0
amappl8 136 28 0 27 1 0 1 1 0 8 0
amappl7 128 127 0 116 1 0 1 1 0 8 0
amappl6 120 314 0 313 1 0 1 1 0 8 0
amappl5 112 191 0 182 1 0 1 1 0 8 0
amappl4 104 331 0 315 1 0 1 1 0 8 0
amappl3 96 2737 0 2628 4 0 4 4 0 8 0
amappl2 88 807 0 752 2 0 2 2 0 8 0
amappl1 80 9430 0 8880 14 0 14 14 0 8 0
amappl 88 4242 0 4077 5 0 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 128 253 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 72 4 0 0 1 0 1 1 0 8 0
uaddrrnd 24 699 0 666 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 699 0 666 1 0 1 1 0 8 0
vmmpekpl 168 7636 0 7559 5 1 4 4 0 8 0
vmmpepl 168 52913 0 51080 111 10 101 110 0 357 12
vmsppl 440 698 0 666 8 2 6 7 0 8 0
rwobjpl 56 22638 0 19796 45 3 42 44 0 8 0
pdppl 4096 1405 0 1332 173 80 93 117 0 8 20
pvpl 32 45210 0 0 365 0 365 365 0 265 0
pmappl 248 698 0 666 5 1 4 4 0 8 1
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 483 0 98 12 0 12 12 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
unveil_add_vnode(ffff8000371cf6f0,fffffd806b449618) at unveil_add_vnode+0xda sys/kern/kern_unveil.c:391
unveil_add(ffff8000371cf6f0,ffff80002a0d2358,ffff80002a0d2413) at unveil_add+0x448 sys/kern/kern_unveil.c:494
sys_unveil(ffff8000371cf6f0,ffff80002a0d2540,ffff80002a0d2490) at sys_unveil+0x60c sys/kern/vfs_syscalls.c:1020
syscall(ffff80002a0d2540) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d2540) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb96735b4a90, count: -5
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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
witness_unlock(fffffd806cf097e8,0) at witness_unlock+0x102 sys/kern/subr_witness.c:1343
rw_exit_read(fffffd806cf097d8) at rw_exit_read+0x90 sys/kern/kern_rwlock.c:140
uvmfault_lookup(ffff80002a07e560,0) at uvmfault_lookup+0x22a sys/uvm/uvm_fault.c:1787
uvm_fault_check(ffff80002a07e560,ffff80002a07e598,ffff80002a07e5c0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672
uvm_fault(fffffd806cf096f8,1f3000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600
kpageflttrap(ffff80002a07e700,1f3520) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002a07e700) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
copyout() at copyout+0x57
syscall(ffff80002a07eb50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a07eb50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
end trace frame: 0xffff80002a07ebd0, count: 0
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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:590 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:158
witness_unlock(fffffd806cf097e8,0) at witness_unlock+0x102 sys/kern/subr_witness.c:1343
rw_exit_read(fffffd806cf097d8) at rw_exit_read+0x90 sys/kern/kern_rwlock.c:140
uvmfault_lookup(ffff80002a07e560,0) at uvmfault_lookup+0x22a sys/uvm/uvm_fault.c:1787
uvm_fault_check(ffff80002a07e560,ffff80002a07e598,ffff80002a07e5c0) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672
uvm_fault(fffffd806cf096f8,1f3000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600
kpageflttrap(ffff80002a07e700,1f3520) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279
kerntrap(ffff80002a07e700) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
copyout() at copyout+0x57
syscall(ffff80002a07eb50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a07eb50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd278e7e90e0, count: -15