witness: lock order reversal:
1st 0xfffffd806e972750 vmmaplk (&map->lock)
2nd 0xfffffd8065ab5f80 inode (&ip->i_lock)
lock order "&ip->i_lock"(rrwlock) -> "&map->lock"(rwlock) first seen at:
#0 witness_checkorder+0x65e witness_lock_order_add sys/kern/subr_witness.c:2463 [inline]
#0 witness_checkorder+0x65e sys/kern/subr_witness.c:880
#1 rw_enter_read+0x66 sys/kern/kern_rwlock.c:111
#2 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1438
#3 uvm_fault+0x7e sys/uvm/uvm_fault.c:526
#4 pageflttrap+0x254 sys/arch/amd64/amd64/trap.c:219
#5 kerntrap+0xf1 sys/arch/amd64/amd64/trap.c:301
#6 alltraps_kern_meltdown+0x7b
#7 copyout+0x53
#8 ffs_read+0x3e2 sys/ufs/ffs/ffs_vnops.c:258
#9 VOP_READ+0xbf sys/kern/vfs_vops.c:247
#10 vn_rdwr+0x10b
#11 vmcmd_map_readvn+0xda sys/kern/exec_subr.c:246
#12 exec_process_vmcmds+0xb2 sys/kern/exec_subr.c:143
#13 sys_execve+0x9ff sys/kern/kern_exec.c:461
#14 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#14 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
#15 Xsyscall+0x128
lock order "&map->lock"(rwlock) -> "&ip->i_lock"(rrwlock) first seen at:
#0 witness_checkorder+0x65e witness_lock_order_add sys/kern/subr_witness.c:2463 [inline]
#0 witness_checkorder+0x65e sys/kern/subr_witness.c:880
#1 rw_enter+0xd4
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
#4 vn_lock+0x6c sys/kern/vfs_vnops.c:575
#5 uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196
#6 uvn_get+0x226 sys/uvm/uvm_vnode.c:1056
#7 uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016
#8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285
#9 uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367
#10 sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828
#11 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#11 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
#12 Xsyscall+0x128
Stopped at db_enter+0x18: addq $0x8,%rsp
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
witness_checkorder(fffffd8065ab5f80,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline]
witness_checkorder(fffffd8065ab5f80,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087
rw_enter(fffffd8065ab5f70,81) at rw_enter+0xd4
rrw_enter(fffffd8065ab5f70,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462
VOP_LOCK(fffffd8065ad8750,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
vn_lock(fffffd8065ad8750,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575
uvn_io(fffffd806dd26d88,ffff800022121408,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196
uvn_get(fffffd806dd26d88,c000,ffff800022121660,ffff8000221215fc,0,3) at uvn_get+0x226 sys/uvm/uvm_vnode.c:1056
uvm_fault(fffffd806e972738,1b2bf2c000,2,3) at uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016
uvm_fault_wire(fffffd806e972738,1b2bf20000,1b2cf20000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285
uvm_map_pageable_wire(fffffd806e972738,fffffd806271bcc8,0,38c,ffffffff8105f2e0,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367
sys_mlockall(ffff8000ffffb658,ffff800022121838,ffff800022121880) at sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828
syscall(ffff800022121900) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022121900) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x742fb469580, count: -14
ddb{0}> show registers
rdi 0x3
rsi 0x40000 acpi_pdirpa+0x2be68
rbp 0xffff800022121060
rbx 0x3
rdx 0xffff800000abda00
rcx 0x3
rax 0x3ffff acpi_pdirpa+0x2be67
r8 0xffffffff81f69fe3 witness_checkorder+0xf33
r9 0x5
r10 0xb8f6189cc770787e
r11 0xd05666e669ef3236
r12 0xffffffff82873870 w_lodata+0x54590
r13 0
r14 0xffffffff828605d0 w_lodata+0x412f0
r15 0xfffffd8002c8e480
rip 0xffffffff81b044c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800022121050
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.1) pid=120384 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffffac78,0xffffffff82881fe0
process=0xffff8000ffff8fd0 user=0xffff80002211c000, vmspace=0xfffffd806e972738
estcpu=36, cpticks=5, pctcpu=0.0
user=0, sys=5, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
94693 38836 8707 0 2 0 syz-executor.1
*94693 120384 8707 0 7 0x4000000 syz-executor.1
20747 114122 75573 0 7 0x480 syz-executor.0
20747 331190 75573 0 3 0x4000080 netcon syz-executor.0
20747 250050 75573 0 3 0x4000080 fsleep syz-executor.0
33714 219133 0 0 3 0x14200 acct acct
75573 129906 66326 0 2 0x482 syz-executor.0
67314 120531 0 0 3 0x14200 bored sosplice
8707 323241 66326 0 2 0x482 syz-executor.1
66326 518923 28974 0 3 0x82 thrsleep syz-fuzzer
66326 495988 28974 0 2 0x4000482 syz-fuzzer
66326 170660 28974 0 3 0x4000082 kqread syz-fuzzer
66326 501930 28974 0 3 0x4000082 thrsleep syz-fuzzer
66326 3088 28974 0 3 0x4000082 thrsleep syz-fuzzer
66326 176986 28974 0 3 0x4000082 thrsleep syz-fuzzer
66326 120986 28974 0 3 0x4000082 thrsleep syz-fuzzer
66326 19672 28974 0 2 0x4000482 syz-fuzzer
28974 308533 84381 0 3 0x10008a pause ksh
84381 76796 50430 0 3 0x92 select sshd
35933 318293 1 0 3 0x100083 ttyin getty
50430 517925 1 0 3 0x80 select sshd
92385 36284 76212 74 3 0x100092 bpf pflogd
76212 496212 1 0 3 0x80 netio pflogd
3340 522722 2382 73 3 0x100090 kqread syslogd
2382 94790 1 0 3 0x100082 netio syslogd
67469 485121 1 77 3 0x100090 poll dhclient
58336 499204 1 0 3 0x80 poll dhclient
65232 84311 0 0 3 0x14200 bored smr
23266 147491 0 0 2 0x14200 zerothread
49760 57127 0 0 3 0x14200 aiodoned aiodoned
79928 155430 0 0 3 0x14200 syncer update
195 91307 0 0 3 0x14200 cleaner cleaner
25173 87023 0 0 3 0x14200 reaper reaper
35019 40412 0 0 3 0x14200 pgdaemon pagedaemon
26970 186383 0 0 3 0x14200 bored crynlk
97921 1329 0 0 3 0x14200 bored crypto
25416 228374 0 0 3 0x40014200 acpi0 acpi0
11034 317969 0 0 3 0x40014200 idle1
48084 432777 0 0 3 0x14200 bored softnet
76677 330719 0 0 3 0x14200 bored systqmp
38500 324906 0 0 3 0x14200 bored systq
95660 308543 0 0 2 0x40014200 softclock
67991 310940 0 0 3 0x40014200 idle0
1 2816 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 94693 (syz-executor.1) thread 0xffff8000ffffb658 (120384)
shared rwlock vmmaplk r = 0 (0xfffffd806e972750)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164
#1 rw_enter+0x446 sys/kern/kern_rwlock.c:311
#2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5452
#3 uvm_map_pageable_all+0x56 sys/uvm/uvm_map.c:2576
#4 sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828
#5 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
#6 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82898598)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1164
#1 syscall+0x3fd mi_syscall sys/sys/syscall_mi.h:93 [inline]
#1 syscall+0x3fd sys/arch/amd64/amd64/trap.c:567
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9518 6422K 6731K 78643K 12339 0
pcb 13 8K 8K 78643K 104 0
rtable 88 11K 12K 78643K 370 0
ifaddr 68 13K 13K 78643K 105 0
counters 43 33K 34K 78643K 55 0
ioctlops 0 0K 4K 78643K 1589 0
iov 0 0K 16K 78643K 197 0
mount 1 1K 1K 78643K 1 0
vnodes 1214 76K 77K 78643K 2434 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 24 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 289 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 6 17K 25K 78643K 12516 0
sigio 0 0K 0K 78643K 20 0
proc 62 63K 95K 78643K 571 0
subproc 32 2K 2K 78643K 51 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 71 0
in_multi 26 1K 2K 78643K 92 0
ether_multi 1 0K 0K 78643K 12 0
mrt 0 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 2K 78643K 415 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 247 55K 66K 78643K 24467 0
UVM aobj 53 7K 7K 78643K 67 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 49 0
NDP 12 0K 0K 78643K 25 0
temp 132 3966K 4094K 78643K 33813 0
kqueue 3 4K 12K 78643K 701 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 8 0 2 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 96 94 0 92 1 0 1 1 0 8 0
rtentry 112 64 0 32 2 0 2 2 0 8 0
unpcb 120 1499 0 1487 1 0 1 1 0 8 0
syncache 272 13 0 13 5 5 0 1 0 8 0
tcpqe 32 977 0 977 4 4 0 1 0 8 0
tcpcb 592 267 0 253 8 6 2 2 0 8 0
inpcb 296 1496 0 1487 8 7 1 2 0 8 0
rttmr 72 1 0 1 1 1 0 1 0 8 0
nd6 48 12 0 8 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
kcovpl 48 3 0 1 1 0 1 1 0 8 0
swfcl 56 1 0 0 1 0 1 1 0 8 0
pffrag 232 2 0 2 1 1 0 1 0 482 0
pffrnode 88 2 0 2 1 1 0 1 0 8 0
pffrent 40 6 0 6 1 1 0 1 0 8 0
pfosfp 40 847 0 423 5 0 5 5 0 8 0
pfosfpen 112 1430 0 714 21 0 21 21 0 8 0
pfstitem 24 43 0 37 1 0 1 1 0 8 0
pfstkey 112 43 0 37 1 0 1 1 0 8 0
pfstate 328 43 0 37 2 0 2 2 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 256 290 0 158 14 4 10 13 0 8 0
art_table 32 291 0 158 2 0 2 2 0 8 0
art_node 16 63 0 36 1 0 1 1 0 8 0
sysvmsgpl 40 40 0 16 1 0 1 1 0 8 0
semapl 112 287 0 277 1 0 1 1 0 8 0
shmpl 112 64 0 14 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 14334 0 12944 88 0 88 88 0 8 0
ffsino 272 14334 0 12944 95 1 94 94 0 8 0
nchpl 144 28013 0 26426 60 0 60 60 0 8 0
uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0
vnodes 208 5926 0 0 312 0 312 312 0 8 0
namei 1024 61357 0 61357 3 2 1 1 0 8 1
percpumem 16 38 0 6 1 0 1 1 0 8 0
vcpupl 1984 4 0 0 1 0 1 1 0 8 0
vmpool 560 4 0 0 1 0 1 1 0 8 0
scxspl 192 82934 0 82934 13 11 2 7 0 8 2
plimitpl 152 79 0 70 1 0 1 1 0 8 0
sigapl 424 12731 0 12697 4 0 4 4 0 8 0
futexpl 56 47017 0 47016 2 1 1 1 0 8 0
knotepl 112 707 0 687 1 0 1 1 0 8 0
kqueuepl 152 8609 0 8607 1 0 1 1 0 8 0
pipepl 304 208 0 197 12 10 2 2 0 8 1
fdescpl 496 12713 0 12696 3 0 3 3 0 8 0
filepl 152 29950 0 29845 6 1 5 5 0 8 0
lockfpl 104 1179 0 1178 1 0 1 1 0 8 0
lockfspl 48 518 0 517 1 0 1 1 0 8 0
sessionpl 120 19 0 8 1 0 1 1 0 8 0
pgrppl 48 36 0 25 1 0 1 1 0 8 0
ucredpl 96 654 0 645 1 0 1 1 0 8 0
zombiepl 144 12697 0 12697 2 1 1 1 0 8 1
processpl 1008 12731 0 12697 6 1 5 5 0 8 0
procpl 632 23635 0 23591 6 1 5 5 0 8 1
sosppl 144 6 0 6 3 3 0 1 0 8 0
sockpl 400 3095 0 3072 7 4 3 4 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 13 0 0 2 0 2 2 0 8 0
mcl9k 9216 20 0 0 2 0 2 2 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 17 0 0 3 0 3 3 0 8 0
mcl2k2 2112 12 0 0 1 0 1 1 0 8 0
mcl2k 2048 371 0 0 46 1 45 46 0 8 0
mtagpl 96 33 0 0 1 0 1 1 0 8 0
mbufpl 256 472 0 0 24 0 24 24 0 8 0
bufpl 280 18194 0 11946 447 0 447 447 0 8 0
anonpl 16 670452 0 631770 185 29 156 156 0 124 0
amapchunkpl 152 38176 0 36988 77 27 50 55 0 158 4
amappl16 192 26464 0 25220 84 18 66 69 0 8 3
amappl15 184 3348 0 3348 2 2 0 1 0 8 0
amappl14 176 9162 0 9151 1 0 1 1 0 8 0
amappl13 168 445 0 444 1 0 1 1 0 8 0
amappl12 160 16 0 10 1 0 1 1 0 8 0
amappl11 152 63 0 48 1 0 1 1 0 8 0
amappl10 144 17 0 9 1 0 1 1 0 8 0
amappl9 136 369 0 369 2 2 0 1 0 8 0
amappl8 128 172 0 120 2 0 2 2 0 8 0
amappl7 120 256 0 248 1 0 1 1 0 8 0
amappl6 112 70 0 59 1 0 1 1 0 8 0
amappl5 104 6830 0 6812 1 0 1 1 0 8 0
amappl4 96 6548 0 6520 1 0 1 1 0 8 0
amappl3 88 354 0 346 1 0 1 1 0 8 0
amappl2 80 78935 0 78856 3 0 3 3 0 8 0
amappl1 72 291783 0 291258 26 15 11 19 0 8 1
amappl 80 24038 0 23862 4 0 4 4 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 66 0 14 1 0 1 1 0 8 0
uaddrrnd 24 12717 0 12696 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 12717 0 12696 1 0 1 1 0 8 0
vmmpekpl 168 39310 0 39274 2 0 2 2 0 8 0
vmmpepl 168 1461107 0 1458364 208 85 123 153 0 357 3
vmsppl 368 12716 0 12696 2 0 2 2 0 8 0
pdppl 4096 25441 0 25396 7 1 6 6 0 8 0
pvpl 32 3109333 0 3067900 407 72 335 335 0 265 0
pmappl 232 12716 0 12696 3 1 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 309 0 21 9 0 9 9 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
witness_checkorder(fffffd8065ab5f80,9,0) at witness_checkorder+0xf5a witness_debugger sys/kern/subr_witness.c:2490 [inline]
witness_checkorder(fffffd8065ab5f80,9,0) at witness_checkorder+0xf5a sys/kern/subr_witness.c:1087
rw_enter(fffffd8065ab5f70,81) at rw_enter+0xd4
rrw_enter(fffffd8065ab5f70,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462
VOP_LOCK(fffffd8065ad8750,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
vn_lock(fffffd8065ad8750,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575
uvn_io(fffffd806dd26d88,ffff800022121408,1,2,0) at uvn_io+0x2b5 sys/uvm/uvm_vnode.c:1196
uvn_get(fffffd806dd26d88,c000,ffff800022121660,ffff8000221215fc,0,3) at uvn_get+0x226 sys/uvm/uvm_vnode.c:1056
uvm_fault(fffffd806e972738,1b2bf2c000,2,3) at uvm_fault+0x1197 sys/uvm/uvm_fault.c:1016
uvm_fault_wire(fffffd806e972738,1b2bf20000,1b2cf20000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1285
uvm_map_pageable_wire(fffffd806e972738,fffffd806271bcc8,0,38c,ffffffff8105f2e0,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367
sys_mlockall(ffff8000ffffb658,ffff800022121838,ffff800022121880) at sys_mlockall+0x6a sys/uvm/uvm_mmap.c:828
syscall(ffff800022121900) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022121900) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x742fb469580, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d80ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82898390) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82898390) at __mp_lock+0x122 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82898390,1) at __mp_acquire_count+0x4c sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x390 sys/kern/sched_bsd.c:435
sleep_finish(ffff800021cda340,1) at sleep_finish+0x111 sys/kern/kern_synch.c:418
sleep_finish_all(ffff800021cda340,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline]
sleep_finish_all(ffff800021cda340,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393
tsleep(ffffffff827af1e8,120,ffffffff823b4d37,2) at tsleep+0x1c2 sys/kern/kern_synch.c:155
sys_nanosleep(ffff8000ffffb3e0,ffff800021cda470,ffff800021cda4c0) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:297
syscall(ffff800021cda540) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021cda540) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:567
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffebc60, count: -12