uvm_fault(0xfffffd8075e542e0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12
TID PID UID PRFLAGS PFLAGS CPU COMMAND
dt_ioctl_record_stop(ffff800001497b80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232
spec_close(ffff800035d49950) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8068b82cf0,81,fffffd8007bfb5b0,ffff80003c992a78) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd80686a5ae0,ffff80003c992a78) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd80686a5ae0,ffff80003c992a78) at closef+0x18d sys/kern/kern_descrip.c:1251
fdfree(ffff80003c992a78) at fdfree+0x115 sys/kern/kern_descrip.c:1182
exit1(ffff80003c992a78,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215
sys_exit(ffff80003c992a78,ffff800035d49cc0,ffff800035d49c10) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800035d49cc0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035d49cc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b22c9b13610, 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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd8075e542e0, 0x0, 0, 1) -> e
ddb> trace
dt_ioctl_record_stop(ffff800001497b80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232
spec_close(ffff800035d49950) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8068b82cf0,81,fffffd8007bfb5b0,ffff80003c992a78) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd80686a5ae0,ffff80003c992a78) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd80686a5ae0,ffff80003c992a78) at closef+0x18d sys/kern/kern_descrip.c:1251
fdfree(ffff80003c992a78) at fdfree+0x115 sys/kern/kern_descrip.c:1182
exit1(ffff80003c992a78,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215
sys_exit(ffff80003c992a78,ffff800035d49cc0,ffff800035d49c10) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800035d49cc0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035d49cc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b22c9b13610, count: -12
ddb> show registers
rdi 0
rsi 0
rbp 0xffff800035d49880
rbx 0xffffffff82577b00 dtclose
rdx 0
rcx 0xffff80003c992a78
rax 0xffffffff8380fd68 dt_prov_syscall
r8 0xffffffffffffffff
r9 0
r10 0x16e2d549759da911
r11 0xd6dee2b56a096f58
r12 0xffff80000006ae80
r13 0
r14 0
r15 0xffff800001496e00
rip 0xffffffff82577e80 dt_ioctl_record_stop+0xf0
cs 0x8
rflags 0x10207 __ALIGN_SIZE+0xf207
rsp 0xffff800035d49850
ss 0x10
dt_ioctl_record_stop+0xf0: movq 0(%r14),%r12
ddb> show proc
PROC (syz-executor) tid=412648 pid=48761 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=81, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80003c992a78 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff800035d31218,0xffff80003c992fa8
process=0xffff8000ffff68d0 user=0xffff800035d44000, vmspace=0xfffffd8075e542e0
estcpu=31, cpticks=0, pctcpu=0.1, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
61138 99439 34048 -1 2 0x10 syz-executor
61138 63157 34048 -1 3 0x4000090 fsleep syz-executor
87789 217241 84373 0 2 0 syz-executor
87789 221046 84373 0 3 0x4000080 semwait syz-executor
87789 158610 84373 0 2 0x4000000 syz-executor
87789 452612 84373 0 3 0x4000080 fsleep syz-executor
6915 155445 37805 0 3 0x90 nanoslp syz-executor
6915 238768 37805 0 3 0x4000090 fsleep syz-executor
6915 289754 37805 0 3 0x4000090 kqsel syz-executor
6915 74076 37805 0 3 0x4000090 fsleep syz-executor
78664 445254 0 0 3 0x14200 acct acct
40720 163454 0 0 3 0x14280 nfsidl nfsio
73835 431021 0 0 3 0x14280 nfsidl nfsio
5615 498883 0 0 3 0x14280 nfsidl nfsio
63339 129152 0 0 3 0x14280 nfsidl nfsio
65152 168205 0 0 3 0x14280 nfsidl nfsio
32880 2623 0 0 3 0x14280 nfsidl nfsio
62687 501379 0 0 3 0x14280 nfsidl nfsio
7510 273721 0 0 3 0x14280 nfsidl nfsio
90131 105334 0 0 3 0x14280 nfsidl nfsio
53633 119429 0 0 3 0x14280 nfsidl nfsio
43389 450308 0 0 3 0x14280 nfsidl nfsio
52018 520675 0 0 3 0x14280 nfsidl nfsio
74674 93823 0 0 3 0x14280 nfsidl nfsio
19300 290589 0 0 3 0x14280 nfsidl nfsio
46370 219470 0 0 3 0x14280 nfsidl nfsio
64685 164470 0 0 3 0x14280 nfsidl nfsio
42256 425099 0 0 3 0x14280 nfsidl nfsio
52547 28309 0 0 3 0x14280 nfsidl nfsio
56353 492680 0 0 3 0x14280 nfsidl nfsio
56261 516605 0 0 3 0x14280 nfsidl nfsio
27030 490528 0 0 3 0x14200 bored sosplice
37805 254092 83368 0 3 0x82 nanoslp syz-executor
34048 39684 83368 0 3 0x82 nanoslp syz-executor
84373 341922 83368 0 3 0x82 nanoslp syz-executor
51238 390920 83368 0 3 0x82 nanoslp syz-executor
64001 91235 83368 0 3 0x82 wait syz-executor
62710 246199 83368 0 3 0x82 wait syz-executor
93674 436519 83368 0 2 0x10000082 syz-executor
83368 167808 12700 0 3 0x82 wait syz-executor
12700 253863 22755 0 3 0x10008a sigsusp ksh
22755 495851 90093 0 3 0x98 kqread sshd-session
90093 459578 70219 0 3 0x92 kqread sshd-session
12736 112644 1 0 3 0x100083 ttyopn getty
70219 398685 1 0 3 0x88 kqread sshd
60522 258552 71522 73 3 0x1100090 kqread syslogd
71522 361144 1 0 3 0x100082 sbwait syslogd
8015 248343 1 0 3 0x100080 kqread resolvd
67744 164830 12630 77 3 0x100092 kqread dhcpleased
8190 119632 12630 77 3 0x100092 kqread dhcpleased
12630 424762 1 0 3 0x80 kqread dhcpleased
96559 78947 0 0 3 0x14200 bored smr
58919 91530 0 0 2 0x14200 zerothread
56650 109357 0 0 3 0x14200 aiodoned aiodoned
64939 260374 0 0 3 0x14200 syncer update
40651 146909 0 0 3 0x14200 cleaner cleaner
90198 214644 0 0 3 0x14200 reaper reaper
35558 351204 0 0 3 0x14200 pgdaemon pagedaemon
77497 331421 0 0 3 0x14200 bored viomb
34248 207162 0 0 3 0x40014200 acpi0 acpi0
22410 222731 0 0 3 0x14200 bored softnet7
39177 158739 0 0 3 0x14200 bored softnet6
9 496753 0 0 3 0x14200 bored softnet5
74566 483685 0 0 3 0x14200 bored softnet4
63334 368169 0 0 3 0x14200 bored softnet3
66192 10589 0 0 3 0x14200 bored softnet2
47132 142230 0 0 3 0x14200 bored softnet1
89367 303788 0 0 3 0x14200 bored softnet0
38566 244543 0 0 3 0x14200 bored systqmp
91449 468699 0 0 3 0x14200 bored systq
95672 409054 0 0 3 0x40014200 tmoslp softclock
39119 54931 0 0 3 0x40014200 idle0
1 399810 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10273 11211K 12007K 166960K 13036 0
pcb 17 14K 16K 166960K 215 0
rtable 182 7K 9K 166960K 411 0
pf 32 13K 17K 166960K 94 0
ifaddr 34 6K 8K 166960K 84 0
ifgroup 46 2K 2K 166960K 119 0
sysctl 4 1K 9K 166960K 16 0
counters 31 17K 18K 166960K 67 0
ioctlops 0 0K 4K 166960K 237 0
iov 0 0K 28K 166960K 105 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1437 90K 90K 166960K 2126 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 2K 6K 166960K 15 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 31 0
dirhash 12 2K 2K 166960K 27 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 240K 166960K 848 0
sigio 0 0K 0K 166960K 11 0
proc 60 59K 116K 166960K 563 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 201 0
in_multi 70 5K 7K 166960K 132 0
ether_multi 1 0K 0K 166960K 7 0
mrt 1 0K 0K 166960K 3 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 428 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 237 148K 153K 166960K 8975 0
UVM aobj 89 3K 3K 166960K 89 0
pinsyscall 37 74K 94K 166960K 1895 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 40 0
NDP 10 0K 2K 166960K 52 0
temp 58 8670K 8742K 166960K 50525 0
kqueue 13 20K 30K 166960K 166 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 157 0 154 3 0 3 3 0 8 2
rtentry 136 130 0 65 4 0 4 4 0 8 0
unpcb 144 488 0 473 4 2 2 3 0 8 1
syncache 336 8 0 8 2 1 1 1 0 8 1
tcpqe 32 9 0 9 1 0 1 1 0 8 1
tcpcb 736 583 0 545 13 6 7 7 0 8 3
arp 88 15 0 6 1 0 1 1 0 8 0
inpcb 328 997 0 956 12 5 7 7 0 8 3
ip6q 72 5 0 1 1 0 1 1 0 8 0
ip6af 40 7 0 2 1 0 1 1 0 8 0
nd6 104 21 0 10 1 0 1 1 0 8 0
pkpcb 40 6 0 6 2 1 1 1 0 8 1
kcovpl 48 9 0 1 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 0 1 1 0 8 1
ppxss 1072 27 0 27 2 1 1 1 0 8 1
pppxif 1384 6 0 6 2 1 1 1 0 8 1
pfstscr 40 1 0 1 1 1 0 1 0 8 0
pfrktable 1344 2 0 2 1 0 1 1 0 8 1
pfstitem 24 2 0 0 1 0 1 1 0 8 0
pfstkey 128 70 0 68 1 0 1 1 0 8 0
pfstate 384 35 0 34 1 0 1 1 0 8 0
pfrule 1344 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 4 0 0 4 0 4 4 0 8 0
art_heap4 256 596 0 291 31 2 29 29 0 8 7
art_table 40 600 0 291 5 0 5 5 0 8 0
art_node 32 130 0 73 1 0 1 1 0 8 0
sysvmsgpl 40 44 0 4 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 25 0 15 1 0 1 1 0 8 0
shmpl 112 86 0 0 3 0 3 3 0 8 0
dirhash 1024 28 0 11 3 0 3 3 0 8 0
dino2pl 256 2864 0 1370 95 0 95 95 0 8 0
ffsino 248 2864 0 1370 95 0 95 95 0 8 0
nchpl 144 4112 0 2428 63 0 63 63 0 8 0
rtmask 32 4 0 4 2 1 1 1 0 8 1
uvmvnodes 80 3482 0 0 72 0 72 72 0 8 0
vnodes 216 3482 0 0 194 0 194 194 0 8 0
namei 1024 13390 0 13390 3 2 1 2 0 8 1
kstatmem 264 70 0 50 2 0 2 2 0 8 0
scsiplug 72 5 0 5 2 1 1 1 0 8 1
scxspl 216 13584 0 13584 15 7 8 8 1 8 8
plimitpl 152 162 0 145 1 0 1 1 0 8 0
sigapl 424 1146 0 1075 10 1 9 9 0 8 0
knotepl 120 309259 0 309212 27 18 9 16 0 8 7
kqueuepl 184 368 0 357 3 0 3 3 0 8 2
pipepl 296 162 0 135 3 0 3 3 0 8 0
fdescpl 440 1101 0 1073 5 1 4 5 0 8 0
filepl 120 6648 0 6397 13 2 11 11 0 8 0
lockfpl 104 460 0 456 1 0 1 1 0 8 0
lockfspl 48 203 0 199 1 0 1 1 0 8 0
sessionpl 144 26 0 18 1 0 1 1 0 8 0
pgrppl 48 44 0 28 1 0 1 1 0 8 0
ucredpl 104 808 0 794 1 0 1 1 0 8 0
zombiepl 144 1080 0 1075 1 0 1 1 0 8 0
processpl 1160 1146 0 1075 7 1 6 6 0 8 0
procpl 656 2201 0 2123 8 0 8 8 0 8 0
sosppl 168 5 0 5 2 1 1 1 0 8 1
sockpl 528 1776 0 1717 12 5 7 8 0 8 2
mcl64k 65536 29 0 29 2 1 1 1 0 8 1
mcl16k 16384 2 0 2 1 1 0 1 0 8 0
mcl9k 9216 2 0 2 2 1 1 1 0 8 1
mcl8k 8192 12 0 12 2 1 1 1 0 8 1
mcl4k 4096 3357 0 3308 14 6 8 13 0 8 1
mcl2k2 2112 1 0 1 1 0 1 1 0 8 1
mcl2k 2048 1197 0 1190 7 4 3 6 0 8 1
mtagpl 96 51 0 22 1 0 1 1 0 8 0
mbufpl 256 11683 0 11480 28 5 23 26 0 8 8
bufpl 280 4680 0 120 326 0 326 326 0 8 0
anonpl 24 201677 0 193432 85 9 76 76 0 187 0
amapchunkpl 152 30260 0 29685 37 7 30 30 0 158 3
amappl16 200 3910 0 3651 29 2 27 27 0 8 0
amappl15 192 4 0 4 1 1 0 1 0 8 0
amappl14 184 114 0 104 1 0 1 1 0 8 0
amappl13 176 104 0 104 1 1 0 1 0 8 0
amappl12 168 1726 0 1697 3 1 2 3 0 8 0
amappl11 160 77 0 67 1 0 1 1 0 8 0
amappl10 152 2 0 2 1 1 0 1 0 8 0
amappl9 144 240 0 240 1 1 0 1 0 8 0
amappl8 136 49 0 47 1 0 1 1 0 8 0
amappl7 128 130 0 120 1 0 1 1 0 8 0
amappl6 120 179 0 176 1 0 1 1 0 8 0
amappl5 112 129 0 122 1 0 1 1 0 8 0
amappl4 104 279 0 263 1 0 1 1 0 8 0
amappl3 96 5783 0 5674 4 0 4 4 0 8 0
amappl2 88 640 0 583 2 0 2 2 0 8 0
amappl1 80 11182 0 10642 13 0 13 13 0 8 0
amappl 88 8193 0 8019 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 128 256 0 256 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 18 0 17 1 0 1 1 0 8 0
aobjpl 72 88 0 0 2 0 2 2 0 8 0
uaddrrnd 24 1101 0 1073 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1101 0 1073 1 0 1 1 0 8 0
vmmpekpl 168 9575 0 9539 2 0 2 2 0 8 0
vmmpepl 168 74692 0 72638 108 4 104 104 0 357 2
vmsppl 360 1100 0 1073 4 1 3 4 0 8 0
rwobjpl 32 24767 0 20101 38 0 38 38 0 8 0
pdppl 4096 2208 0 2146 102 34 68 80 0 8 6
pvpl 32 512751 0 499318 175 17 158 158 0 265 12
pmappl 216 1100 0 1073 3 1 2 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 311 0 65 8 0 8 8 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
dt_ioctl_record_stop(ffff800001497b80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232
spec_close(ffff800035d49950) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8068b82cf0,81,fffffd8007bfb5b0,ffff80003c992a78) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd80686a5ae0,ffff80003c992a78) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd80686a5ae0,ffff80003c992a78) at closef+0x18d sys/kern/kern_descrip.c:1251
fdfree(ffff80003c992a78) at fdfree+0x115 sys/kern/kern_descrip.c:1182
exit1(ffff80003c992a78,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215
sys_exit(ffff80003c992a78,ffff800035d49cc0,ffff800035d49c10) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800035d49cc0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035d49cc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b22c9b13610, count: -12
ddb> machine ddbcpu 1
No such command
ddb> trace
dt_ioctl_record_stop(ffff800001497b80) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:580
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,81,2000,ffff80003c992a78) at dtclose+0xd5 sys/dev/dt/dt_dev.c:232
spec_close(ffff800035d49950) at spec_close+0x45f sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd8068b82cf0,81,fffffd8007bfb5b0,ffff80003c992a78) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd80686a5ae0,ffff80003c992a78) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615
fdrop(fffffd80686a5ae0,ffff80003c992a78) at fdrop+0x126 sys/kern/kern_descrip.c:1267
closef(fffffd80686a5ae0,ffff80003c992a78) at closef+0x18d sys/kern/kern_descrip.c:1251
fdfree(ffff80003c992a78) at fdfree+0x115 sys/kern/kern_descrip.c:1182
exit1(ffff80003c992a78,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215
sys_exit(ffff80003c992a78,ffff800035d49cc0,ffff800035d49c10) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800035d49cc0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff800035d49cc0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b22c9b13610, count: -12