uvm_fault(0xfffffd806cd079b0, 0x0, 0, 1) -> e
fatal page fault in supervisor mode
trap type 6 code 0 rip ffffffff810bfbb8 cs 8 rflags 10207 cr2 0 cpl 0 rsp ffff80002aff0f50
gsbase 0xffff8000299ddff0 kgsbase 0x0
panic: trap type 6, code=0, pc=ffffffff810bfbb8
Starting stack trace...
panic(ffffffff833dcc34) at panic+0x1d0 sys/kern/subr_prf.c:229
kerntrap(ffff80002aff0ea0) at kerntrap+0x30b
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
dt_ioctl_record_stop(ffff800001486000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(21e5f,81,2000,ffff8000387e3a18) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(21e5f,81,2000,ffff8000387e3a18) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002aff1050) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805e81b468,81,fffffd80097fd680,ffff8000387e3a18) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd806c942720,ffff8000387e3a18) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd806c942720,ffff8000387e3a18) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd806c942720,ffff8000387e3a18) at fdrop+0x121 sys/kern/kern_descrip.c:1280
sys_ioctl(ffff8000387e3a18,ffff80002aff1360,ffff80002aff12b0) at sys_ioctl+0x30b sys/kern/sys_generic.c:516
syscall(ffff80002aff1360) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002aff1360) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xad8863edd00, count: 245
End of stack trace.
WARNING: SPL NOT LOWERED ON SYSCALL 83 2029606576 EXIT 0 4
Stopped at savectx+0xae: movl $0,%gs:0x688
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 31976 86726 0 0 0x4000000 1 syz-executor
83930 27341 0 0x2 0 0 syz-executor
savectx() at savectx+0xae
end of kernel
end trace frame: 0xad8f3b7a9a0, count: 14
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806cd079b0, 0x0, 0, 1) -> e
ddb{1}> trace
savectx() at savectx+0xae
end of kernel
end trace frame: 0xad8f3b7a9a0, count: -1
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002afe6120
rbx 0
rdx 0
rcx 0xffff8000387e2d20
rax 0x3b
r8 0xffff80002afe6050
r9 0x1
r10 0x9beae014a4839465
r11 0xb3144f2642f4a666
r12 0
r13 0
r14 0xffff8000387e2d20
r15 0
rip 0xffffffff827da3ee savectx+0xae
cs 0x8
rflags 0x46
rsp 0xffff80002afe60a0
ss 0x10
savectx+0xae: movl $0,%gs:0x688
ddb{1}> show proc
PROC (syz-executor) tid=31976 pid=86726 tcnt=4 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=0xffff8000387e3a18,0xffff8000387e2568
process=0xffff8000fffe61d8 user=0xffff80002afe1000, vmspace=0xfffffd806cd079b0
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
86726 362989 63247 0 2 0 syz-executor
86726 112804 63247 0 3 0x4000000 sbar syz-executor
*86726 31976 63247 0 7 0x4000000 syz-executor
86726 103601 63247 0 2 0x4000080 syz-executor
13566 424062 27341 0 2 0 syz-executor
13566 263732 27341 0 3 0x4000080 fsleep syz-executor
13566 276722 27341 0 2 0x4000000 syz-executor
20492 225561 51230 0 2 0 syz-executor
20492 112909 51230 0 3 0x4000080 fsleep syz-executor
20492 420103 51230 0 2 0x4000000 syz-executor
64887 83424 33013 -1 2 0x10 syz-executor
64887 441337 33013 -1 2 0x4000010 syz-executor
64887 23020 33013 -1 3 0x4000090 fsleep syz-executor
1933 32596 77944 0 2 0x2 syz-executor
6091 50622 77944 0 2 0xc82 syz-executor
53209 226625 0 0 3 0x14200 acct acct
89982 385144 0 0 3 0x14280 nfsidl nfsio
83945 497480 0 0 3 0x14280 nfsidl nfsio
574 147995 0 0 3 0x14280 nfsidl nfsio
49339 355299 0 0 3 0x14280 nfsidl nfsio
82461 346885 0 0 3 0x14280 nfsidl nfsio
5032 313167 0 0 3 0x14280 nfsidl nfsio
15466 136001 0 0 3 0x14280 nfsidl nfsio
82024 317964 0 0 3 0x14280 nfsidl nfsio
57973 43975 0 0 3 0x14280 nfsidl nfsio
70826 301736 0 0 3 0x14280 nfsidl nfsio
95981 44393 0 0 3 0x14280 nfsidl nfsio
23137 514780 0 0 3 0x14280 nfsidl nfsio
73006 184794 0 0 3 0x14280 nfsidl nfsio
61569 8811 0 0 3 0x14280 nfsidl nfsio
73406 81395 0 0 3 0x14280 nfsidl nfsio
13221 261277 0 0 3 0x14280 nfsidl nfsio
5134 357057 0 0 3 0x14280 nfsidl nfsio
49026 22083 0 0 3 0x14280 nfsidl nfsio
55536 384779 0 0 3 0x14280 nfsidl nfsio
29037 36177 0 0 3 0x14280 nfsidl nfsio
35826 32836 77944 0 3 0x82 wait syz-executor
33013 179359 77944 0 2 0xc82 syz-executor
53222 493177 77944 0 2 0xc82 syz-executor
27341 83930 77944 0 7 0x2 syz-executor
63247 375153 77944 0 2 0xc82 syz-executor
51230 283886 77944 0 2 0xc82 syz-executor
77944 295792 10792 0 3 0x82 kqread syz-executor
10792 452008 17029 0 3 0x10008a sigsusp ksh
17029 252077 56414 0 3 0x98 kqread sshd-session
56414 173920 70272 0 3 0x92 kqread sshd-session
76899 486790 1 0 3 0x100083 ttyopn getty
70272 3262 1 0 3 0x88 kqread sshd
29555 19397 70943 74 3 0x1100092 bpf pflogd
70943 469404 1 0 3 0x80 sbwait pflogd
32679 220086 27262 73 3 0x1100090 kqread syslogd
27262 223964 1 0 3 0x100082 sbwait syslogd
82787 68867 1 0 3 0x100080 kqread resolvd
90778 332688 9194 77 3 0x100092 kqread dhcpleased
45063 409206 9194 77 3 0x100092 kqread dhcpleased
9194 337853 1 0 3 0x80 kqread dhcpleased
19240 460181 0 0 3 0x14200 bored smr
59224 65813 0 0 2 0x14200 zerothread
16979 355828 0 0 3 0x14200 aiodoned aiodoned
90912 408614 0 0 3 0x14200 syncer update
17992 337468 0 0 3 0x14200 cleaner cleaner
1564 282316 0 0 2 0x14200 reaper
77272 459165 0 0 3 0x14200 pgdaemon pagedaemon
94431 198534 0 0 3 0x14200 bored viomb
11965 468287 0 0 3 0x40014200 acpi0 acpi0
65755 320502 0 0 3 0x40014200 idle1
64408 462961 0 0 3 0x14200 bored softnet1
90849 1179 0 0 2 0x14200 softnet0
81336 71625 0 0 2 0x40014200 systqmp
32621 206458 0 0 3 0x14200 bored systq
37385 473953 0 0 3 0x14200 tmoslp softclockmp
58230 199551 0 0 3 0x40014200 tmoslp softclock
33305 292271 0 0 3 0x40014200 idle0
1 296126 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 86726 (syz-executor) thread 0xffff8000387e3a18 (112804)
exclusive rwlock dtlk r = 0 (0xffffffff837b77a8)
#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_write+0x419 sys/kern/kern_rwlock.c:320
#2 dt_ioctl_record_stop+0x2e sys/dev/dt/dt_dev.c:572
#3 dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
#3 dtclose+0x109 sys/dev/dt/dt_dev.c:239
#4 spec_close+0x466 sys/kern/spec_vnops.c:-1
#5 VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
#6 vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
#6 vn_closefile+0x12b sys/kern/vfs_vnops.c:615
#7 fdrop+0x121 sys/kern/kern_descrip.c:1280
#8 sys_ioctl+0x30b sys/kern/sys_generic.c:516
#9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839a93c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 vn_closefile+0x41 sys/kern/vfs_vnops.c:608
#2 fdrop+0x121 sys/kern/kern_descrip.c:1280
#3 sys_ioctl+0x30b sys/kern/sys_generic.c:516
#4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#5 Xsyscall+0x128
Process 1564 (reaper) thread 0xffff8000ffffd9f8 (282316)
exclusive rwlock kmmaplk r = 0 (0xffffffff839a8468)
#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_write+0x419 sys/kern/kern_rwlock.c:320
#2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5171
#3 uvm_unmap+0x7d sys/uvm/uvm_map.c:1792
#4 km_free+0x87 sys/uvm/uvm_km.c:714
#5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304
#6 reaper+0x1aa sys/kern/kern_exit.c:493
#7 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10229 11083K 11499K 166960K 13288 0
pcb 17 13K 14K 166960K 237 0
rtable 215 10K 11K 166960K 614 0
pf 34 17K 81K 166960K 138 0
ifaddr 39 6K 8K 166960K 107 0
ifgroup 55 2K 2K 166960K 177 0
sysctl 4 1K 9K 166960K 12 0
counters 70 37K 38K 166960K 208 0
ioctlops 0 0K 5K 166960K 1828 0
iov 0 0K 14K 166960K 59 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1463 92K 92K 166960K 2576 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 13K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 183 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 93K 166960K 1233 0
sigio 0 0K 0K 166960K 20 0
proc 74 115K 196K 166960K 691 0
subproc 72 4K 4K 166960K 90 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 179 0
in_multi 80 5K 7K 166960K 160 0
ether_multi 1 0K 0K 166960K 8 0
mrt 0 0K 0K 166960K 10 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 151 678K 678K 166960K 151 0
exec 0 0K 1K 166960K 707 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 260 168K 182K 166960K 13980 0
UVM aobj 29 10K 10K 166960K 30 0
pinsyscall 41 82K 105K 166960K 2412 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 75 0
NDP 12 0K 2K 166960K 72 0
temp 76 8680K 8800K 166960K 50639 0
kqueue 13 20K 30K 166960K 245 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> 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 120 120 0 117 1 0 1 1 0 8 0
rtentry 176 163 0 79 6 0 6 6 0 8 0
unpcb 144 832 0 814 6 4 2 4 0 8 1
syncache 336 4 0 4 2 2 0 1 0 8 0
tcpcb 736 392 0 388 11 10 1 7 0 8 0
arp 136 27 0 12 1 0 1 1 0 8 0
inpcb 328 1207 0 1199 15 11 4 7 0 8 2
nd6 152 34 0 13 2 0 2 2 0 8 0
pkpcb 40 4 0 4 3 2 1 1 0 8 1
kcovpl 48 10 0 2 1 0 1 1 0 8 0
ppxss 1192 53 0 53 4 3 1 1 0 8 1
pppxif 1504 9 0 9 2 2 0 1 0 8 0
pffrag 232 11 0 4 1 0 1 1 0 482 0
pffrnode 88 8 0 1 1 0 1 1 0 8 0
pffrent 40 25 0 18 3 2 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 1 0 1 1 1 0 1 0 8 0
pfstitem 24 75 0 37 1 0 1 1 0 8 0
pfstkey 128 75 0 37 2 0 2 2 0 8 0
pfstate 448 75 0 37 5 0 5 5 0 8 0
pfrule 1344 24 0 19 2 1 1 2 0 8 0
rttmr 136 2 0 2 2 2 0 1 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 683 0 308 33 4 29 30 0 8 1
art_table 40 686 0 308 5 0 5 5 0 8 0
art_node 32 161 0 86 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 11 2 1 1 1 0 8 0
semapl 112 181 0 171 1 0 1 1 0 8 0
shmpl 112 23 0 0 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 3728 0 2223 95 0 95 95 0 8 0
ffsino 296 3728 0 2223 117 0 117 117 0 8 0
nchpl 144 5528 0 4939 64 42 22 64 0 8 0
rtmask 32 11 0 11 3 2 1 1 0 8 1
vnodes 216 4566 0 0 254 0 254 254 0 8 0
namei 1024 18726 0 18725 3 2 1 2 0 8 0
percpumem 16 119 0 69 1 0 1 1 0 8 0
vcpupl 3968 3 0 0 1 0 1 1 0 8 0
vmpool 840 4 0 1 1 0 1 1 0 8 0
kstatmem 264 108 0 80 5 2 3 3 0 8 1
scsiplug 72 5 0 5 4 4 0 1 0 8 0
scxspl 216 32218 0 32218 13 12 1 8 1 8 1
plimitpl 152 334 0 317 1 0 1 1 0 8 0
sigapl 424 1559 0 1491 8 0 8 8 0 8 0
knotepl 120 568 0 0 17 0 17 17 0 8 0
kqueuepl 224 579 0 570 5 4 1 5 0 8 0
pipepl 344 305 0 278 10 3 7 9 0 8 4
fdescpl 528 1522 0 1492 3 0 3 3 0 8 0
filepl 160 9668 0 9446 23 8 15 18 0 8 4
lockfpl 104 325 0 323 1 0 1 1 0 8 0
lockfspl 48 140 0 138 1 0 1 1 0 8 0
sessionpl 144 24 0 15 1 0 1 1 0 8 0
pgrppl 48 43 0 26 1 0 1 1 0 8 0
ucredpl 104 1425 0 1410 1 0 1 1 0 8 0
zombiepl 144 2221 0 2218 2 1 1 1 0 8 0
processpl 1232 1559 0 1491 6 0 6 6 0 8 0
procpl 664 3614 0 3537 9 1 8 8 0 8 0
sosppl 176 11 0 11 4 4 0 1 0 8 0
sockpl 752 2196 0 2167 16 9 7 10 0 8 3
mcl64k 65536 18 0 0 3 0 3 3 0 8 0
mcl12k 12288 1 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 120 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 35 0 0 4 0 4 4 0 8 0
mtagpl 96 142 0 0 4 0 4 4 0 8 0
mbufpl 256 419 0 0 26 0 26 26 0 8 0
bufpl 280 12722 0 6586 439 0 439 439 0 8 0
anonpl 32 13180 0 0 107 0 107 107 0 246 0
amapchunkpl 152 46731 0 46199 41 12 29 32 0 158 5
amappl16 200 6098 0 6063 55 39 16 32 0 8 6
amappl15 192 4 0 4 1 1 0 1 0 8 0
amappl14 184 7 0 7 1 1 0 1 0 8 0
amappl13 176 445 0 444 1 0 1 1 0 8 0
amappl12 168 1892 0 1851 3 0 3 3 0 8 0
amappl11 160 6 0 6 2 1 1 1 0 8 1
amappl10 152 49 0 34 1 0 1 1 0 8 0
amappl9 144 251 0 251 1 1 0 1 0 8 0
amappl8 136 28 0 25 1 0 1 1 0 8 0
amappl7 128 91 0 90 1 0 1 1 0 8 0
amappl6 120 305 0 292 1 0 1 1 0 8 0
amappl5 112 96 0 85 1 0 1 1 0 8 0
amappl4 104 429 0 398 1 0 1 1 0 8 0
amappl3 96 8989 0 8875 5 1 4 4 0 8 0
amappl2 88 551 0 488 2 0 2 2 0 8 0
amappl1 80 13730 0 13137 16 3 13 16 0 8 0
amappl 88 13045 0 12865 5 0 5 5 0 92 0
uvmvnodes 80 142 0 0 3 0 3 3 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 0
dma4096 4096 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 128 253 0 253 1 1 0 1 0 8 0
dma64 64 7 0 7 2 2 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 29 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1523 0 1493 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1523 0 1493 1 0 1 1 0 8 0
vmmpekpl 168 14064 0 14014 3 0 3 3 0 8 0
vmmpepl 168 103117 0 101203 123 22 101 112 0 357 6
vmsppl 488 1522 0 1492 6 2 4 5 0 8 0
rwobjpl 80 30058 0 28931 39 6 33 35 0 8 0
pdppl 4096 3062 0 2989 109 34 75 86 0 8 2
pvpl 32 21041 0 0 170 0 170 170 0 265 0
pmappl 256 1526 0 1493 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 321 0 56 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff837c4ff0) 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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb kd_curproc sys/dev/kcov.c:580 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:153
syscall(ffff80002a368010) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
syscall(ffff80002a368010) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7dfdc38247e0, count: 9
ddb{0}> trace
x86_ipi_db(ffffffff837c4ff0) 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
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb kd_curproc sys/dev/kcov.c:580 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:153
syscall(ffff80002a368010) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
syscall(ffff80002a368010) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7dfdc38247e0, count: -6
ddb{0}> machine ddbcpu 1
Stopped at savectx+0xae: movl $0,%gs:0x688
savectx() at savectx+0xae
end of kernel
end trace frame: 0xad8f3b7a9a0, count: 14
ddb{1}> trace
savectx() at savectx+0xae
end of kernel
end trace frame: 0xad8f3b7a9a0, count: -1