uvm_fault(0xfffffd806ee395c8, 0x668, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at pppacopen+0x1b5: movq %r13,0x668
TID PID UID PRFLAGS PFLAGS CPU COMMAND
5357 95165 0 0 0 0 syz-executor.2
* 95568 95165 0 0 0x4000000 1K syz-executor.2
pppacopen(4086331,1,2000,ffff800021247508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020
spec_open(ffff8000211c9f18) at spec_open+0x3d7 sys/kern/spec_vnops.c:157
VOP_OPEN(fffffd80686105c8,1,fffffd807f7d7840,ffff800021247508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138
vn_open(ffff8000211ca168,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183
doopenat(ffff800021247508,ffffff9c,20000100,0,0,ffff8000211ca350) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128
syscall(ffff8000211ca3c0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000211ca3c0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x93f384010e0, count: 8
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(0xfffffd806ee395c8, 0x668, 0, 2) -> e
ddb{1}> trace
pppacopen(4086331,1,2000,ffff800021247508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020
spec_open(ffff8000211c9f18) at spec_open+0x3d7 sys/kern/spec_vnops.c:157
VOP_OPEN(fffffd80686105c8,1,fffffd807f7d7840,ffff800021247508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138
vn_open(ffff8000211ca168,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183
doopenat(ffff800021247508,ffffff9c,20000100,0,0,ffff8000211ca350) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128
syscall(ffff8000211ca3c0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000211ca3c0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x93f384010e0, count: -7
ddb{1}> show registers
rdi 0xffff8000230be000
rsi 0xd88
rbp 0xffff8000211c9e90
rbx 0
rdx 0xffff8000230be000
rcx 0xd87
rax 0xffffffff81c79ee5 pppacopen+0x1b5
r8 0x770
r9 0xfffffd807f7d7840
r10 0x3301bf2afbda09b7
r11 0xf91ee032a1116caf
r12 0xfffffd80686105c8
r13 0
r14 0x4086331 __kernel_phys_end+0x1486331
r15 0xffff8000211c9f18
rip 0xffffffff81c79ee5 pppacopen+0x1b5
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000211c9e40
ss 0x10
pppacopen+0x1b5: movq %r13,0x668
ddb{1}> show proc
PROC (syz-executor.2) pid=95568 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800021246548,0xffffffff8293ceb0
process=0xffff8000ffff8430 user=0xffff8000211c5000, vmspace=0xfffffd806ee395c8
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
95165 5357 74142 0 7 0 syz-executor.2
*95165 95568 74142 0 7 0x4000000 syz-executor.2
22588 366813 0 0 3 0x14200 bored sosplice
3590 12750 26721 0 3 0x2 biowait syz-executor.3
74142 32440 26721 0 3 0x82 nanoslp syz-executor.2
75754 47186 26721 0 3 0x82 nanoslp syz-executor.1
37924 445810 26721 0 3 0x82 nanoslp syz-executor.0
26721 316558 41444 0 3 0x82 thrsleep syz-fuzzer
26721 283936 41444 0 3 0x4000082 nanoslp syz-fuzzer
26721 276129 41444 0 3 0x4000082 thrsleep syz-fuzzer
26721 169645 41444 0 3 0x4000082 thrsleep syz-fuzzer
26721 345285 41444 0 3 0x4000082 thrsleep syz-fuzzer
26721 401645 41444 0 3 0x4000082 thrsleep syz-fuzzer
26721 91651 41444 0 3 0x4000082 thrsleep syz-fuzzer
26721 3573 41444 0 3 0x4000082 kqread syz-fuzzer
41444 11456 6833 0 3 0x10008a sigsusp ksh
6833 88309 6008 0 3 0x9a poll sshd
5350 287485 1 0 3 0x100083 ttyin getty
6008 104180 1 0 3 0x88 poll sshd
87408 794 69621 74 3 0x100092 bpf pflogd
69621 182973 1 0 3 0x80 netio pflogd
11051 188831 97463 73 3 0x100090 kqread syslogd
97463 505121 1 0 3 0x100082 netio syslogd
91629 90874 1 0 3 0x100080 kqread resolvd
3055 327010 19062 77 3 0x100092 kqread dhcpleased
10960 304476 19062 77 3 0x100092 kqread dhcpleased
19062 192035 1 0 3 0x80 kqread dhcpleased
26189 504404 0 0 3 0x14200 bored smr
68990 292887 0 0 3 0x14200 pgzero zerothread
46669 96809 0 0 3 0x14200 aiodoned aiodoned
45570 465324 0 0 3 0x14200 syncer update
66834 407485 0 0 3 0x14200 cleaner cleaner
70637 369495 0 0 3 0x14200 reaper reaper
17619 351863 0 0 3 0x14200 pgdaemon pagedaemon
52106 281259 0 0 3 0x14200 bored viomb
45058 309042 0 0 3 0x40014200 acpi0 acpi0
34647 201264 0 0 3 0x40014200 idle1
89825 462299 0 0 3 0x14200 bored softnet
49494 235258 0 0 3 0x14200 bored systqmp
84048 308807 0 0 3 0x14200 bored systq
57294 261676 0 0 3 0x40014200 bored softclock
45548 230373 0 0 3 0x40014200 idle0
1 454007 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 95165 (syz-executor.2) thread 0xffff800021247508 (95568)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f9c10)
#0 witness_lock+0x44d
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416
#3 sleep_finish+0x1b2 sys/kern/kern_synch.c:433
#4 tsleep+0x12c sys/kern/kern_synch.c:158
#5 getblk+0x13c sys/kern/vfs_bio.c:1031
#6 bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline]
#6 bread+0x3a sys/kern/vfs_bio.c:481
#7 ffs_vget+0x204 sys/ufs/ffs/ffs_vfsops.c:1364
#8 ufs_lookup+0x122c sys/ufs/ufs/ufs_lookup.c:582
#9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561
#11 namei+0x36a sys/kern/vfs_lookup.c:245
#12 vn_open+0x105 sys/kern/vfs_vnops.c:146
#13 doopenat+0x26a sys/kern/vfs_syscalls.c:1128
#14 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#14 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#15 Xsyscall+0x128
Process 3590 (syz-executor.3) thread 0xffff8000212482a0 (12750)
exclusive rrwlock inode r = 0 (0xfffffd8067c424e0)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3100
#10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806a63ca28)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:579
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413
#6 namei+0x36a sys/kern/vfs_lookup.c:245
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3085
#8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10164 6469K 6790K 78643K 12281 0
pcb 13 8K 8K 78643K 67 0
rtable 121 4K 6K 78643K 285 0
ifaddr 56 12K 14K 78643K 164 0
sysctl 1 1K 1K 78643K 1 0
counters 48 34K 35K 78643K 90 0
ioctlops 0 0K 4K 78643K 1566 0
iov 0 0K 16K 78643K 56 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1232 77K 78K 78643K 1566 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 1K 1K 78643K 2 0
sem 11 1K 1K 78643K 18 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12598 0
file desc 7 21K 45K 78643K 1077 0
sigio 0 0K 0K 78643K 4 0
proc 71 87K 123K 78643K 427 0
subproc 52 3K 3K 78643K 52 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 57 0
in_multi 42 2K 3K 78643K 112 0
ether_multi 1 0K 0K 78643K 16 0
mrt 0 0K 0K 78643K 4 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 49 228K 228K 78643K 49 0
exec 0 0K 2K 78643K 494 0
tdb 3 0K 0K 78643K 3 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 213 43K 56K 78643K 14173 0
UVM aobj 4 2K 2K 78643K 4 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 74 0
NDP 8 0K 1K 78643K 40 0
temp 70 4196K 4260K 78643K 6191 0
kqueue 10 14K 18K 78643K 53 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 36 0 33 1 0 1 1 0 8 0
rtentry 112 79 0 30 2 0 2 2 0 8 0
unpcb 136 275 0 260 1 0 1 1 0 8 0
syncache 296 13 0 13 3 3 0 1 0 8 0
tcpqe 32 96 0 96 2 2 0 1 0 8 0
tcpcb 736 152 0 143 5 3 2 3 0 8 0
arp 120 10 0 0 1 0 1 1 0 8 0
inpcb 304 377 0 368 2 1 1 2 0 8 0
nd6 48 15 0 5 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 1 0 1 0 8 0
kcovpl 48 4 0 0 1 0 1 1 0 8 0
pfstscr 40 8 0 8 2 2 0 1 0 8 0
pffrag 232 7 0 6 2 1 1 1 0 482 0
pffrnode 88 7 0 6 2 1 1 1 0 8 0
pffrent 40 14 0 13 2 1 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 12 0 10 2 1 1 1 0 8 0
pftag 88 5 0 3 1 0 1 1 0 8 0
pfqueue 264 5 0 1 2 1 1 1 0 8 0
pfstitem 24 16 0 10 1 0 1 1 0 8 0
pfstkey 112 30 0 24 1 0 1 1 0 8 0
pfstate 320 22 0 16 2 0 2 2 0 8 1
pfrule 1360 57 0 45 3 1 2 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 348 0 153 15 1 14 15 0 8 0
art_table 32 349 0 153 2 0 2 2 0 8 0
art_node 16 78 0 34 1 0 1 1 0 8 0
semapl 112 9 0 0 1 0 1 1 0 8 0
shmpl 112 1 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 2759 0 1347 89 0 89 89 0 8 0
ffsino 272 2759 0 1347 95 0 95 95 0 8 0
nchpl 144 4147 0 2524 61 0 61 61 0 8 0
uvmvnodes 80 3034 0 0 62 0 62 62 0 8 0
vnodes 224 3034 0 0 179 0 179 179 0 8 0
namei 1024 10838 0 10837 1 0 1 1 0 8 0
percpumem 16 57 0 21 1 0 1 1 0 8 0
pfiaddrpl 120 7 0 3 2 1 1 1 0 8 0
scxspl 216 12621 0 12620 10 8 2 8 0 8 1
plimitpl 152 39 0 28 1 0 1 1 0 8 0
sigapl 424 1316 0 1281 5 0 5 5 0 8 0
futexpl 64 5533 0 5533 1 0 1 1 0 8 1
knotepl 112 70 0 0 2 0 2 2 0 8 0
kqueuepl 216 79 0 73 1 0 1 1 0 8 0
pipepl 336 145 0 129 2 0 2 2 0 8 0
fdescpl 496 1301 0 1281 4 1 3 4 0 8 0
filepl 152 4100 0 3949 7 0 7 7 0 8 1
lockfpl 104 124 0 122 1 0 1 1 0 8 0
lockfspl 48 51 0 49 1 0 1 1 0 8 0
sessionpl 144 20 0 7 1 0 1 1 0 8 0
pgrppl 48 24 0 11 1 0 1 1 0 8 0
ucredpl 96 566 0 554 1 0 1 1 0 8 0
zombiepl 144 1281 0 1279 1 0 1 1 0 8 0
processpl 1064 1316 0 1279 3 0 3 3 0 8 0
procpl 672 2473 0 2428 5 0 5 5 0 8 0
sosppl 168 5 0 4 1 0 1 1 0 8 0
sockpl 480 696 0 669 6 2 4 5 0 8 0
mcl64k 65536 9 0 0 2 0 2 2 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 10 0 0 1 0 1 1 0 8 0
mcl9k 9216 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 11 0 0 2 0 2 2 0 8 0
mcl2k 2048 167 0 0 20 0 20 20 0 8 0
mtagpl 96 96 0 0 3 0 3 3 0 8 0
mbufpl 256 508 0 0 32 1 31 31 0 8 0
bufpl 288 5181 0 145 360 0 360 360 0 8 0
anonpl 24 333029 0 319897 108 22 86 102 0 186 0
amapchunkpl 152 34106 0 33517 34 7 27 32 0 158 1
amappl16 200 4069 0 3675 35 13 22 32 0 8 0
amappl15 192 254 0 254 1 0 1 1 0 8 1
amappl14 184 265 0 262 1 0 1 1 0 8 0
amappl13 176 42 0 40 1 0 1 1 0 8 0
amappl12 168 24 0 21 1 0 1 1 0 8 0
amappl11 160 290 0 274 1 0 1 1 0 8 0
amappl10 152 315 0 303 1 0 1 1 0 8 0
amappl9 144 486 0 482 1 0 1 1 0 8 0
amappl8 136 629 0 596 2 0 2 2 0 8 0
amappl7 128 342 0 330 1 0 1 1 0 8 0
amappl6 120 155 0 140 1 0 1 1 0 8 0
amappl5 112 1199 0 1180 1 0 1 1 0 8 0
amappl4 104 1103 0 1077 1 0 1 1 0 8 0
amappl3 96 187 0 171 1 0 1 1 0 8 0
amappl2 88 359 0 321 2 1 1 2 0 8 0
amappl1 80 24753 0 24286 13 2 11 13 0 8 0
amappl 88 13810 0 13649 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 3 0 0 1 0 1 1 0 8 0
uaddrrnd 24 1301 0 1281 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1301 0 1281 1 0 1 1 0 8 0
vmmpekpl 168 10792 0 10761 2 0 2 2 0 8 0
vmmpepl 168 118611 0 116879 102 14 88 98 0 357 2
vmsppl 368 1300 0 1281 3 0 3 3 0 8 1
rwobjpl 56 31694 0 27463 61 0 61 61 0 8 0
pdppl 4096 2610 0 2562 72 18 54 62 0 8 6
pvpl 32 689666 0 673080 183 31 152 171 0 265 2
pmappl 248 1300 0 1281 2 0 2 2 0 8 0
extentpl 40 57 0 38 1 0 1 1 0 8 0
phpool 112 710 0 26 20 0 20 20 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff82779ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:578 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff828f9a08) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff828f9a08) at __mp_lock+0x133 sys/kern/kern_lock.c:147
intr_handler(ffff800027b038f0,ffff80000004ad00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f
end of kernel
end trace frame: 0x7f7fffff0f30, count: 8
ddb{0}> trace
x86_ipi_db(ffffffff82779ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:578 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff828f9a08) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff828f9a08) at __mp_lock+0x133 sys/kern/kern_lock.c:147
intr_handler(ffff800027b038f0,ffff80000004ad00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f
end of kernel
end trace frame: 0x7f7fffff0f30, count: -7
ddb{0}> machine ddbcpu 1
Stopped at pppacopen+0x1b5: movq %r13,0x668
pppacopen(4086331,1,2000,ffff800021247508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020
spec_open(ffff8000211c9f18) at spec_open+0x3d7 sys/kern/spec_vnops.c:157
VOP_OPEN(fffffd80686105c8,1,fffffd807f7d7840,ffff800021247508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138
vn_open(ffff8000211ca168,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183
doopenat(ffff800021247508,ffffff9c,20000100,0,0,ffff8000211ca350) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128
syscall(ffff8000211ca3c0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000211ca3c0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x93f384010e0, count: 8
ddb{1}> trace
pppacopen(4086331,1,2000,ffff800021247508) at pppacopen+0x1b5 sys/net/if_pppx.c:1020
spec_open(ffff8000211c9f18) at spec_open+0x3d7 sys/kern/spec_vnops.c:157
VOP_OPEN(fffffd80686105c8,1,fffffd807f7d7840,ffff800021247508) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138
vn_open(ffff8000211ca168,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183
doopenat(ffff800021247508,ffffff9c,20000100,0,0,ffff8000211ca350) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128
syscall(ffff8000211ca3c0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000211ca3c0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x93f384010e0, count: -7