uvm_fault(0xffffffff83a92ba0, 0xffff800027ce200c, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ufs_direnter+0x23b: movl 0(%r14),%r15d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*297588 97473 0 0 0x4000000 1K syz-executor
165042 70391 60928 0x10 0x1 0 syz-executor
ufs_direnter(fffffd805eb8cce0,fffffd8060980040,ffff80003c40b698,ffff80003c40b9f8,0) at ufs_direnter+0x23b sys/ufs/ufs/ufs_lookup.c:764
ufs_makeinode(2000,fffffd805eb8cce0,ffff80003c40b9c8,ffff80003c40b9f8) at ufs_makeinode+0x51b sys/ufs/ufs/ufs_vnops.c:1768
ufs_mknod(ffff80003c40b870) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffffd805eb8cce0,ffff80003c40b9c8,ffff80003c40b9f8,ffff80003c40b8f8) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
domknodat(ffff80002a2b6560,ffffff9c,2000000000c0,2000,637d) at domknodat+0x469 sys/kern/vfs_syscalls.c:1665
syscall(ffff80003c40bb90) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c40bb90) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1af98bf7730, 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(0xffffffff83a92ba0, 0xffff800027ce200c, 0, 1) -> d
ddb{1}> trace
ufs_direnter(fffffd805eb8cce0,fffffd8060980040,ffff80003c40b698,ffff80003c40b9f8,0) at ufs_direnter+0x23b sys/ufs/ufs/ufs_lookup.c:764
ufs_makeinode(2000,fffffd805eb8cce0,ffff80003c40b9c8,ffff80003c40b9f8) at ufs_makeinode+0x51b sys/ufs/ufs/ufs_vnops.c:1768
ufs_mknod(ffff80003c40b870) at ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
VOP_MKNOD(fffffd805eb8cce0,ffff80003c40b9c8,ffff80003c40b9f8,ffff80003c40b8f8) at VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
domknodat(ffff80002a2b6560,ffffff9c,2000000000c0,2000,637d) at domknodat+0x469 sys/kern/vfs_syscalls.c:1665
syscall(ffff80003c40bb90) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c40bb90) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1af98bf7730, count: -7
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80003c40b680
rbx 0xfffffd80097fd2d8
rdx 0xffff8000015f88c0
rcx 0xffff80002a2b6560
rax 0xffff80002999dff0
r8 0xffffffffffffffff
r9 0x1
r10 0xde0274f1af4f6328
r11 0x318ab394f6cb964a
r12 0xfffffd806c88f500
r13 0xfffffd806e59c9b8
r14 0xffff800027ce200c
r15 0
rip 0xffffffff817da42b ufs_direnter+0x23b
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c40b5e0
ss 0
ufs_direnter+0x23b: movl 0(%r14),%r15d
ddb{1}> show proc
PROC (syz-executor) tid=297588 pid=97473 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a2b62c8,0xffffffff83b1e050
process=0xffff80002b3e1d08 user=0xffff80003c406000, vmspace=0xfffffd806f383b78
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
97473 278399 78664 0 2 0 syz-executor
*97473 297588 78664 0 7 0x4000000 syz-executor
27336 56309 64373 0 2 0 syz-executor
27336 225724 64373 0 2 0x4000000 syz-executor
31469 312220 94966 0 2 0 syz-executor
31469 383594 94966 0 3 0x4000080 fsleep syz-executor
31469 144176 94966 0 3 0x4000080 fsleep syz-executor
31469 70131 94966 0 3 0x4000080 kqsel syz-executor
38941 135999 51008 0 2 0 syz-executor
38941 271830 51008 0 3 0x4000080 fsleep syz-executor
70391 165042 67839 60928 7 0x11 syz-executor
70391 174264 67839 60928 3 0x4000090 fifow syz-executor
70391 516559 67839 60928 3 0x4000090 fsleep syz-executor
17153 508963 78755 60929 2 0x400c90 syz-executor
17153 411712 78755 60929 3 0x4400090 kqread syz-executor
17153 139252 78755 60929 3 0x4400090 fsleep syz-executor
64373 380526 26842 0 2 0xc82 syz-executor
78755 398240 26842 0 3 0x82 nanoslp syz-executor
91207 132926 0 0 3 0x14280 nfsidl nfsio
72189 141663 0 0 3 0x14280 nfsidl nfsio
27977 12947 0 0 3 0x14280 nfsidl nfsio
7711 160498 0 0 3 0x14280 nfsidl nfsio
74655 279525 0 0 3 0x14280 nfsidl nfsio
84208 413190 0 0 3 0x14280 nfsidl nfsio
65664 188177 0 0 3 0x14280 nfsidl nfsio
90411 279004 0 0 3 0x14280 nfsidl nfsio
32667 240967 0 0 3 0x14280 nfsidl nfsio
16960 189079 0 0 3 0x14280 nfsidl nfsio
57672 339688 0 0 3 0x14280 nfsidl nfsio
18392 76843 0 0 3 0x14280 nfsidl nfsio
38855 288154 0 0 3 0x14280 nfsidl nfsio
65444 246414 0 0 3 0x14280 nfsidl nfsio
34164 311633 0 0 3 0x14280 nfsidl nfsio
47922 428803 0 0 3 0x14280 nfsidl nfsio
80305 401405 0 0 3 0x14280 nfsidl nfsio
74911 28114 0 0 3 0x14280 nfsidl nfsio
57118 350047 0 0 3 0x14280 nfsidl nfsio
1339 129124 0 0 3 0x14280 nfsidl nfsio
88466 11826 26842 0 3 0x82 piperd syz-executor
78664 502182 26842 0 3 0x82 nanoslp syz-executor
67839 93725 26842 0 2 0xc82 syz-executor
1077 37610 26842 0 3 0x82 wait syz-executor
51008 347968 26842 0 2 0xc82 syz-executor
94966 422340 26842 0 2 0xc82 syz-executor
26842 191510 1 0 2 0x2 syz-executor
89930 245276 0 0 3 0x14200 pause smr
38652 403658 0 0 2 0x14200 zerothread
67613 502087 0 0 3 0x14200 aiodoned aiodoned
63115 205917 0 0 3 0x14200 syncer update
83773 95620 0 0 3 0x14200 cleaner cleaner
16074 92156 0 0 3 0x14200 reaper reaper
43218 52041 0 0 3 0x14200 pgdaemon pagedaemon
99614 338411 0 0 3 0x14200 bored viomb
93817 431966 0 0 3 0x40014200 acpi0 acpi0
1194 85079 0 0 3 0x40014200 idle1
526 411733 0 0 3 0x14200 bored softnet1
35638 178314 0 0 3 0x14200 bored softnet0
15557 167278 0 0 3 0x14200 smrbar systqmp
30155 270867 0 0 3 0x14200 bored systq
36904 93154 0 0 3 0x14200 tmoslp softclockmp
3930 3135 0 0 3 0x40014200 tmoslp softclock
45650 14602 0 0 3 0x40014200 idle0
1 119856 0 0 4 0x58000082 init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{1}> show all locks
Process 97473 (syz-executor) thread 0xffff80002a2b6560 (297588)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83b1b740)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369
#3 biowait+0xc6 sys/kern/vfs_bio.c:1242
#4 bwrite+0x2e7 sys/kern/vfs_bio.c:754
#5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111
#6 ufs_makeinode+0x4b0 sys/ufs/ufs/ufs_vnops.c:1764
#7 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
#8 VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
#9 domknodat+0x469 sys/kern/vfs_syscalls.c:1665
#10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806edd4480)
#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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232
#6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_makeinode+0xcd sys/ufs/ufs/ufs_vnops.c:1732
#8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167
#9 VOP_MKNOD+0x101 sys/kern/vfs_vops.c:121
#10 domknodat+0x469 sys/kern/vfs_syscalls.c:1665
#11 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#11 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#12 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806e59ca58)
#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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431
#6 namei+0x7c5 sys/kern/vfs_lookup.c:250
#7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1617
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
Process 15557 (systqmp) thread 0xffff8000ffffea60 (167278)
shared rwlock systqmp r = 0 (0xffffffff839055f8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11070 12175K 12417K 166960K 13121 0
pcb 18 17K 18K 166960K 291 0
rtable 228 10K 10K 166960K 531 0
pf 40 18K 82K 166960K 169 0
ifaddr 41 7K 7K 166960K 76 0
ifgroup 59 2K 2K 166960K 106 0
sysctl 4 1K 9K 166960K 14 0
counters 72 37K 38K 166960K 128 0
ioctlops 0 0K 4K 166960K 1639 0
iov 0 0K 16K 166960K 30 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1421 89K 89K 166960K 2077 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 77 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 61K 110K 166960K 722 0
sigio 0 0K 0K 166960K 7 0
proc 12 17K 164K 166960K 685 0
subproc 72 4K 4K 166960K 99 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 125 0
in_multi 85 6K 7K 166960K 142 0
ether_multi 1 0K 0K 166960K 2 0
mrt 1 0K 0K 166960K 27 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 558 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 138 78K 180K 166960K 8349 0
UVM aobj 57 2K 2K 166960K 57 0
pinsyscall 17 34K 102K 166960K 1999 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 20 0
NDP 13 0K 2K 166960K 51 0
temp 53 9118K 9194K 166960K 22679 0
kqueue 3 6K 31K 166960K 142 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 75 0 75 1 0 1 1 0 8 1
rtentry 176 157 0 63 6 0 6 6 0 8 0
unpcb 144 540 0 534 6 2 4 6 0 8 3
syncache 336 7 0 7 1 0 1 1 0 8 1
tcpcb 736 396 0 394 13 4 9 13 0 8 8
arp 136 25 0 8 1 0 1 1 0 8 0
inpcb 328 1052 0 1047 12 3 9 12 0 8 8
nd6 152 35 0 12 1 0 1 1 0 8 0
pkpcb 40 1 0 1 1 0 1 1 0 8 1
kcovpl 48 11 0 3 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 1 0 1 0 8 0
ppxss 1192 22 0 22 1 0 1 1 0 8 1
pppxif 1576 2 0 2 1 0 1 1 0 8 1
pfstscr 40 6 0 4 1 0 1 1 0 8 0
pffrag 232 10 0 3 1 0 1 1 0 482 0
pffrnode 88 9 0 3 1 0 1 1 0 8 0
pffrent 40 13 0 6 1 0 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 2 0 1 1 0 1 1 0 8 0
pfsrclim 320 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 11 0 0 1 0 1 1 0 8 0
pftag 88 5 0 0 1 0 1 1 0 8 0
pfqueue 320 1 0 1 1 0 1 1 0 8 1
pfstitem 24 60 0 1 1 0 1 1 0 8 0
pfstkey 128 65 0 6 2 0 2 2 0 8 0
pfstate 448 62 0 4 7 0 7 7 0 8 0
pfrule 1360 29 0 23 2 1 1 2 0 8 0
rttmr 136 4 0 4 2 1 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 691 0 270 31 2 29 31 0 8 2
art_table 40 692 0 270 5 0 5 5 0 8 0
art_node 32 157 0 73 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0
semapl 72 74 0 64 1 0 1 1 0 8 0
shmpl 112 54 0 0 2 0 2 2 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 2678 0 1196 93 0 93 93 0 8 0
ffsino 296 2678 0 1196 115 0 115 115 0 8 0
nchpl 144 3625 0 1907 64 0 64 64 0 8 0
rtmask 32 6 0 6 2 1 1 1 0 8 1
vnodes 216 3194 0 0 178 0 178 178 0 8 0
namei 1024 12504 0 12503 3 0 3 3 0 8 2
percpumem 16 79 0 28 1 0 1 1 0 8 0
kstatmem 264 63 0 32 3 0 3 3 0 8 0
scsiplug 72 4 0 4 1 0 1 1 0 8 1
scxspl 216 12953 0 12953 10 2 8 8 1 8 8
plimitpl 152 226 0 209 1 0 1 1 0 8 0
sigapl 424 1061 0 994 8 0 8 8 0 8 0
knotepl 120 746 0 0 23 0 23 23 0 8 0
kqueuepl 224 326 0 320 5 2 3 5 0 8 2
pipepl 344 237 0 210 9 3 6 9 0 8 3
fdescpl 528 1024 0 1006 3 0 3 3 0 8 0
filepl 160 6716 0 6542 20 4 16 20 0 8 5
lockfpl 104 286 0 286 1 0 1 1 0 8 1
lockfspl 48 128 0 128 1 0 1 1 0 8 1
sessionpl 144 45 0 36 1 0 1 1 0 8 0
pgrppl 48 66 0 49 1 0 1 1 0 8 0
ucredpl 104 978 0 961 1 0 1 1 0 8 0
zombiepl 144 1008 0 994 1 0 1 1 0 8 0
processpl 1232 1061 0 994 6 0 6 6 0 8 0
procpl 664 1954 0 1877 8 0 8 8 0 8 0
sockpl 752 1697 0 1686 21 12 9 16 0 8 7
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 4 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 118 0 0 15 0 15 15 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 23 0 0 3 0 3 3 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 224 0 0 14 0 14 14 0 8 0
bufpl 280 6964 0 833 439 0 439 439 0 8 0
anonpl 32 6019 0 0 49 0 49 49 0 246 0
amapchunkpl 152 27505 0 27103 33 0 33 33 0 158 13
amappl16 200 2541 0 2515 20 10 10 14 0 8 8
amappl15 192 3 0 3 1 1 0 1 0 8 0
amappl14 184 476 0 476 1 0 1 1 0 8 1
amappl13 176 134 0 134 1 0 1 1 0 8 1
amappl12 168 1294 0 1277 2 0 2 2 0 8 0
amappl11 160 3 0 3 1 1 0 1 0 8 0
amappl10 152 70 0 70 1 0 1 1 0 8 1
amappl9 144 280 0 280 1 1 0 1 0 8 0
amappl8 136 115 0 114 1 0 1 1 0 8 0
amappl7 128 184 0 183 1 0 1 1 0 8 0
amappl6 120 184 0 183 1 0 1 1 0 8 0
amappl5 112 108 0 107 1 0 1 1 0 8 0
amappl4 104 315 0 312 1 0 1 1 0 8 0
amappl3 96 5216 0 5132 4 0 4 4 0 8 1
amappl2 88 610 0 601 2 0 2 2 0 8 0
amappl1 80 13552 0 13464 16 4 12 16 0 8 8
amappl 88 7382 0 7254 5 0 5 5 0 92 0
uvmvnodes 80 121 0 0 3 0 3 3 0 8 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 7 0 7 2 1 1 1 0 8 1
dma128 128 255 0 255 3 2 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 19 0 18 1 0 1 1 0 8 0
aobjpl 72 56 0 0 2 0 2 2 0 8 0
uaddrrnd 24 1024 0 1006 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1024 0 1006 1 0 1 1 0 8 0
vmmpekpl 168 10127 0 10079 3 0 3 3 0 8 0
vmmpepl 168 72290 0 71483 97 2 95 97 0 357 57
vmsppl 488 1023 0 1006 5 0 5 5 0 8 0
rwobjpl 80 22059 0 21581 28 3 25 27 0 8 2
pdppl 4096 2055 0 2012 105 58 47 87 0 8 4
pvpl 32 11789 0 0 97 1 96 96 0 265 0
pmappl 256 1023 0 1006 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 302 0 68 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff8390fff0) 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
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
ktrsysret(ffff80002a2b67f8,5b,0,ffff8000357a3a70) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff80002a2b67f8,5b,0,ffff8000357a3a70) at ktrsysret+0xde sys/kern/kern_ktrace.c:209
syscall(ffff8000357a3b20) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff8000357a3b20) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b1eefd4a000, count: 4
ddb{0}> trace
x86_ipi_db(ffffffff8390fff0) 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
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1af40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
ktrsysret(ffff80002a2b67f8,5b,0,ffff8000357a3a70) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
ktrsysret(ffff80002a2b67f8,5b,0,ffff8000357a3a70) at ktrsysret+0xde sys/kern/kern_ktrace.c:209
syscall(ffff8000357a3b20) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline]
syscall(ffff8000357a3b20) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b1eefd4a000, count: -11
ddb{0}>