uvm_fault(0xfffffd806c9049a0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
37463 77608 0 0 0x4000000 0 syz-executor
dt_ioctl_record_stop(ffff8000016b8000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a2a7d70) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806cf6abe8,1,fffffd80097fd068,ffff80003a3d7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8074701750,ffff80003a3d7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffd8074701750,ffff80003a3d7a28) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff80003a3d7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff80003a3d7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003a3d7a28,ffff80002a2a80e0,ffff80002a2a8030) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2a80e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2a80e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x713c844f0720, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806c9049a0, 0x0, 0, 1) -> e
ddb{1}> trace
dt_ioctl_record_stop(ffff8000016b8000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a2a7d70) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806cf6abe8,1,fffffd80097fd068,ffff80003a3d7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8074701750,ffff80003a3d7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffd8074701750,ffff80003a3d7a28) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff80003a3d7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff80003a3d7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003a3d7a28,ffff80002a2a80e0,ffff80002a2a8030) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2a80e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2a80e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x713c844f0720, count: -12
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff80002a2a7ca0
rbx 0x1
rdx 0
rcx 0xffff80003a3d7a28
rax 0xffffffff838c5870 dt_prov_static
r8 0
r9 0x1
r10 0
r11 0xa51e7d516b25493b
r12 0
r13 0
r14 0
r15 0xffff800001608a00
rip 0xffffffff81cf8eb8 dt_ioctl_record_stop+0x108
cs 0x8
rflags 0x10207 __ALIGN_SIZE+0xf207
rsp 0xffff80002a2a7c70
ss 0
dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
ddb{1}> show proc
PROC (syz-executor) tid=59652 pid=84476 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80003a3d7a28 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff8000393befb8,0xffff80003a3d87f8
process=0xffff80003c4944f8 user=0xffff80002a2a3000, vmspace=0xfffffd806c9049a0
estcpu=36, cpticks=8, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
61301 223561 20822 0 2 0 syz-executor
61301 239346 20822 0 3 0x4000080 fsleep syz-executor
61301 386076 20822 0 2 0x4000000 syz-executor
77608 509572 36757 0 2 0 syz-executor
77608 43823 36757 0 3 0x4000080 sbwait syz-executor
77608 37463 36757 0 7 0x4000000 syz-executor
77608 337354 36757 0 3 0x4000080 fsleep syz-executor
90131 87676 0 0 3 0x14200 acct acct
28039 62023 97575 0 3 0x80 fsleep syz-executor
28039 465097 97575 0 3 0x4000080 sbwait syz-executor
28039 497605 97575 0 3 0x4000080 fsleep syz-executor
28039 21512 97575 0 3 0x4000080 fsleep syz-executor
48939 360602 42388 0 3 0x80 fsleep syz-executor
48939 103915 42388 0 3 0x4000080 kqread syz-executor
5706 351467 9628 0 3 0x80 fsleep syz-executor
5706 90098 9628 0 3 0x4000080 wsevent_read syz-executor
44904 493889 95856 0 3 0x80 fsleep syz-executor
44904 97646 95856 0 3 0x4000080 kqread syz-executor
25086 305882 36649 0 3 0x80 fsleep syz-executor
25086 341513 36649 0 3 0x4000080 kqread syz-executor
97575 459048 67870 0 3 0x82 nanoslp syz-executor
19139 365353 1 0 3 0x100083 ttyopn getty
36649 268401 67870 0 3 0x82 nanoslp syz-executor
36757 72662 67870 0 3 0x82 nanoslp syz-executor
96268 214940 0 0 3 0x14280 nfsidl nfsio
75744 86564 0 0 3 0x14280 nfsidl nfsio
1650 318291 0 0 3 0x14280 nfsidl nfsio
46498 159549 0 0 3 0x14280 nfsidl nfsio
74965 511539 0 0 3 0x14280 nfsidl nfsio
99299 210917 0 0 3 0x14280 nfsidl nfsio
61804 520799 0 0 3 0x14280 nfsidl nfsio
68723 83832 0 0 3 0x14280 nfsidl nfsio
18336 70745 0 0 3 0x14280 nfsidl nfsio
61867 283414 0 0 3 0x14280 nfsidl nfsio
77051 164535 0 0 3 0x14280 nfsidl nfsio
11173 231546 0 0 3 0x14280 nfsidl nfsio
91093 46543 0 0 3 0x14280 nfsidl nfsio
27471 170112 0 0 3 0x14280 nfsidl nfsio
4571 119283 0 0 3 0x14280 nfsidl nfsio
76966 126218 0 0 3 0x14280 nfsidl nfsio
5567 93948 0 0 3 0x14280 nfsidl nfsio
47355 361728 0 0 3 0x14280 nfsidl nfsio
92 292579 0 0 3 0x14280 nfsidl nfsio
57182 233451 0 0 3 0x14280 nfsidl nfsio
98162 346692 67870 0 3 0x82 nanoslp syz-executor
95856 17370 67870 0 3 0x82 nanoslp syz-executor
9628 345475 67870 0 3 0x82 nanoslp syz-executor
20822 370602 67870 0 3 0x82 nanoslp syz-executor
42388 501173 67870 0 3 0x82 nanoslp syz-executor
67870 125205 90773 0 3 0x82 kqread syz-executor
90773 421007 568 0 3 0x10008a sigsusp ksh
568 218146 11946 0 3 0x98 kqread sshd-session
11946 459924 96724 0 3 0x92 kqread sshd-session
96724 211222 1 0 3 0x88 kqread sshd
26431 508346 40267 74 3 0x1100092 bpf pflogd
40267 95170 1 0 3 0x80 sbwait pflogd
34681 314857 99602 73 3 0x1100090 kqread syslogd
99602 426457 1 0 3 0x100082 sbwait syslogd
63671 418554 1 0 3 0x100080 kqread resolvd
32175 187023 13670 77 3 0x100092 kqread dhcpleased
47331 510379 13670 77 3 0x100092 kqread dhcpleased
13670 192148 1 0 3 0x80 kqread dhcpleased
42851 172524 0 0 3 0x14200 bored smr
99368 423465 0 0 3 0x14200 pgzero zerothread
57252 233719 0 0 3 0x14200 aiodoned aiodoned
17118 448375 0 0 3 0x14200 syncer update
40248 400369 0 0 3 0x14200 cleaner cleaner
31167 63946 0 0 2 0x14200 reaper
75392 65063 0 0 3 0x14200 pgdaemon pagedaemon
67978 371456 0 0 3 0x14200 bored viomb
45734 135770 0 0 3 0x40014200 acpi0 acpi0
81274 430155 0 0 3 0x40014200 idle1
58545 482656 0 0 3 0x14200 bored softnet1
70423 402402 0 0 3 0x14200 bored softnet0
73512 505445 0 0 3 0x14200 bored systqmp
58053 163704 0 0 3 0x14200 bored systq
14191 128785 0 0 3 0x14200 tmoslp softclockmp
7275 94285 0 0 3 0x40014200 tmoslp softclock
61740 168998 0 0 3 0x40014200 idle0
1 227635 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{1}> show all locks
Process 61301 (syz-executor) thread 0xffff8000393be2c0 (386076)
exclusive rwlock vmmaplk r = 0 (0xfffffd806c9048b8)
#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_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880
#3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693
#4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#7 recall_trap+0x8
Process 77608 (syz-executor) thread 0xffff80003a3d87e8 (37463)
exclusive rrwlock inode r = 0 (0xfffffd806e72b490)
#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:570
#5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6 namei+0x7ca sys/kern/vfs_lookup.c:250
#7 vn_open+0x15a sys/kern/vfs_vnops.c:140
#8 doopenat+0x35b sys/kern/vfs_syscalls.c:1155
#9 sys_open+0x59 sys/kern/vfs_syscalls.c:1063
#10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11108 12294K 14915K 166960K 14881 0
pcb 17 15K 21K 166960K 412 0
rtable 263 13K 14K 166960K 637 0
pf 44 19K 82K 166960K 263 0
ifaddr 45 8K 8K 166960K 151 0
ifgroup 61 2K 2K 166960K 268 0
sysctl 4 1K 9K 166960K 20 0
counters 74 37K 38K 166960K 302 0
ioctlops 0 0K 4K 166960K 1922 0
iov 0 0K 24K 166960K 103 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1505 95K 95K 166960K 3051 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 16 0
VM map 2 1K 1K 166960K 2 0
sem 23 16K 17K 166960K 165 0
dirhash 12 2K 2K 166960K 42 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 240K 166960K 1789 0
sigio 0 0K 0K 166960K 27 0
proc 72 115K 164K 166960K 832 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 400 0
in_multi 88 6K 7K 166960K 195 0
ether_multi 1 0K 0K 166960K 20 0
mrt 4 0K 0K 166960K 45 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 115 519K 519K 166960K 115 0
exec 0 0K 1K 166960K 660 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 258 169K 186K 166960K 18152 0
UVM aobj 46 8K 10K 166960K 50 0
pinsyscall 43 86K 101K 166960K 3099 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 146 0
NDP 14 0K 2K 166960K 109 0
temp 79 9084K 9337K 166960K 96270 0
kqueue 17 26K 30K 166960K 332 0
SYN cache 2 8K 16K 166960K 3 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 120 178 0 175 2 1 1 2 0 8 0
rtentry 176 187 0 89 6 0 6 6 0 8 0
unpcb 144 1045 0 1024 7 3 4 4 0 8 3
syncache 336 14 0 14 4 4 0 1 0 8 0
tcpqe 32 1 0 1 1 1 0 1 0 8 0
tcpcb 736 564 0 559 9 8 1 4 0 8 0
arp 136 29 0 10 1 0 1 1 0 8 0
ipq 40 1 0 1 1 1 0 1 0 8 0
ipqe 40 3 0 3 1 1 0 1 0 8 0
inpcb 328 2077 0 2067 17 13 4 7 0 8 3
nd6 152 42 0 18 1 0 1 1 0 8 0
pkpcb 40 8 0 8 3 2 1 1 0 8 1
kcovpl 48 11 0 3 1 0 1 1 0 8 0
ppxss 1192 91 0 91 1 0 1 1 0 8 1
pppxif 1576 9 0 9 3 2 1 1 0 8 1
pfstscr 40 2 0 2 2 2 0 1 0 8 0
pffrag 232 37 0 21 1 0 1 1 0 482 0
pffrnode 88 32 0 18 1 0 1 1 0 8 0
pffrent 40 64 0 48 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 1 0 1 0 8 0
pfanchor 1288 2 0 0 1 0 1 1 0 8 0
pftag 88 1 0 0 1 0 1 1 0 8 0
pfstitem 24 108 0 41 1 0 1 1 0 8 0
pfstkey 128 114 0 47 3 0 3 3 0 8 0
pfstate 448 110 0 44 8 0 8 8 0 8 0
pfrule 1360 35 0 25 2 1 1 2 0 8 0
rttmr 136 2 0 2 2 2 0 1 0 8 0
art_heap8 4096 5 0 0 5 0 5 5 0 8 0
art_heap4 256 806 0 411 36 9 27 31 0 8 2
art_table 40 811 0 411 5 0 5 5 0 8 0
art_node 32 187 0 100 1 0 1 1 0 8 0
sysvmsgpl 40 11 0 7 1 0 1 1 0 8 0
semupl 112 2 0 1 2 1 1 1 0 8 0
semapl 112 157 0 136 1 0 1 1 0 8 0
shmpl 112 44 0 4 2 0 2 2 0 8 0
dirhash 1024 37 0 20 3 0 3 3 0 8 0
dino2pl 256 5007 0 3543 93 0 93 93 0 8 0
ffsino 296 5007 0 3543 114 0 114 114 0 8 0
nchpl 144 7488 0 5773 64 0 64 64 0 8 0
rtmask 32 17 0 17 1 1 0 1 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 26315 0 26314 3 2 1 2 0 8 0
percpumem 16 166 0 114 1 0 1 1 0 8 0
vcpupl 3968 3 0 0 1 0 1 1 0 8 0
vmpool 848 3 0 0 1 0 1 1 0 8 0
kstatmem 264 178 0 146 3 0 3 3 0 8 0
scsiplug 72 7 0 7 4 3 1 1 0 8 1
scxspl 216 60049 0 60049 12 11 1 8 1 8 1
plimitpl 152 497 0 480 1 0 1 1 0 8 0
sigapl 424 2132 0 2063 8 0 8 8 0 8 0
knotepl 120 543 0 0 16 0 16 16 0 8 0
kqueuepl 224 599 0 584 6 3 3 3 0 8 2
pipepl 344 309 0 281 6 3 3 6 0 8 0
fdescpl 528 2088 0 2056 3 0 3 3 0 8 0
filepl 160 14044 0 13815 17 3 14 14 0 8 2
lockfpl 104 987 0 984 2 0 2 2 0 8 1
lockfspl 48 361 0 358 1 0 1 1 0 8 0
sessionpl 144 37 0 28 1 0 1 1 0 8 0
pgrppl 48 82 0 65 1 0 1 1 0 8 0
ucredpl 104 2256 0 2243 1 0 1 1 0 8 0
zombiepl 144 2244 0 2243 2 1 1 1 0 8 0
processpl 1232 2132 0 2063 6 0 6 6 0 8 0
procpl 664 4905 0 4823 8 0 8 8 0 8 0
sosppl 176 11 0 11 2 2 0 1 0 8 0
sockpl 752 3452 0 3418 25 14 11 13 0 8 7
mcl64k 65536 8 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 5 0 0 1 0 1 1 0 8 0
mcl4k 4096 114 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 34 0 0 4 0 4 4 0 8 0
mtagpl 96 52 0 0 2 0 2 2 0 8 0
mbufpl 256 1860 0 0 115 0 115 115 0 8 0
bufpl 280 24625 0 18495 439 0 439 439 0 8 0
anonpl 32 15535 0 0 126 0 126 126 0 246 0
amapchunkpl 152 61025 0 60363 48 20 28 35 0 158 1
amappl16 200 9381 0 9291 74 61 13 36 0 8 3
amappl15 192 19 0 18 1 0 1 1 0 8 0
amappl14 184 536 0 535 1 0 1 1 0 8 0
amappl13 176 158 0 146 1 0 1 1 0 8 0
amappl12 168 2360 0 2329 2 0 2 2 0 8 0
amappl11 160 8 0 7 2 1 1 1 0 8 0
amappl10 152 128 0 113 1 0 1 1 0 8 0
amappl9 144 263 0 263 1 1 0 1 0 8 0
amappl8 136 115 0 112 1 0 1 1 0 8 0
amappl7 128 177 0 164 1 0 1 1 0 8 0
amappl6 120 189 0 188 1 0 1 1 0 8 0
amappl5 112 122 0 111 1 0 1 1 0 8 0
amappl4 104 356 0 337 1 0 1 1 0 8 0
amappl3 96 12586 0 12464 4 0 4 4 0 8 0
amappl2 88 718 0 656 2 0 2 2 0 8 0
amappl1 80 21019 0 20413 23 9 14 17 0 8 0
amappl 88 16971 0 16785 6 1 5 5 0 92 0
uvmvnodes 80 170 0 0 4 0 4 4 0 8 0
dma65536 65536 1 0 1 1 1 0 1 0 8 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma2048 2048 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 2 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 49 0 4 1 0 1 1 0 8 0
uaddrrnd 24 2088 0 2056 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2088 0 2056 1 0 1 1 0 8 0
vmmpekpl 168 19354 0 19302 3 0 3 3 0 8 0
vmmpepl 168 146466 0 144411 142 34 108 120 0 357 4
vmsppl 488 2087 0 2056 6 1 5 5 0 8 0
rwobjpl 80 43389 0 42160 40 4 36 37 0 8 0
pdppl 4096 4189 0 4115 115 39 76 81 0 8 2
pvpl 32 24215 0 0 199 3 196 196 0 265 0
pmappl 256 2090 0 2056 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 424 0 68 11 0 11 11 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff8391cff0) 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(ffffffff83a79b80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a79b80) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83a79b80,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
pool_get(ffffffff83a7c6a8,9) at pool_get+0x27e sys/kern/subr_pool.c:595
cache_enter(fffffd805ff172b8,0,ffff80003c4edbd8) at cache_enter+0x131 sys/kern/vfs_cache.c:361
ufs_lookup() at ufs_lookup+0x152e sys/ufs/ufs/ufs_lookup.c:424
VOP_LOOKUP(fffffd805ff172b8,ffff80003c4edba8,ffff80003c4edbd8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003c4edb78) at vfs_lookup+0x98a sys/kern/vfs_lookup.c:567
namei(ffff80003c4edb78) at namei+0x7ca sys/kern/vfs_lookup.c:250
vn_open(ffff80003c4edb78,9,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140
doopenat(ffff80003a3d87e8,ffffff9c,200000001dc0,8,0,0,d1823718789001ab) at doopenat+0x35b sys/kern/vfs_syscalls.c:1155
sys_open(ffff80003a3d87e8,ffff80003c4ede30,ffff80003c4edd80) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063
end trace frame: 0xffff80003c4ede20, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff8391cff0) 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(ffffffff83a79b80) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a79b80) at __mp_lock+0x192 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83a79b80,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
pool_get(ffffffff83a7c6a8,9) at pool_get+0x27e sys/kern/subr_pool.c:595
cache_enter(fffffd805ff172b8,0,ffff80003c4edbd8) at cache_enter+0x131 sys/kern/vfs_cache.c:361
ufs_lookup() at ufs_lookup+0x152e sys/ufs/ufs/ufs_lookup.c:424
VOP_LOOKUP(fffffd805ff172b8,ffff80003c4edba8,ffff80003c4edbd8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80003c4edb78) at vfs_lookup+0x98a sys/kern/vfs_lookup.c:567
namei(ffff80003c4edb78) at namei+0x7ca sys/kern/vfs_lookup.c:250
vn_open(ffff80003c4edb78,9,0) at vn_open+0x15a sys/kern/vfs_vnops.c:140
doopenat(ffff80003a3d87e8,ffffff9c,200000001dc0,8,0,0,d1823718789001ab) at doopenat+0x35b sys/kern/vfs_syscalls.c:1155
sys_open(ffff80003a3d87e8,ffff80003c4ede30,ffff80003c4edd80) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063
syscall(ffff80003c4ede30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4ede30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3a18de5b920, count: -16
ddb{0}> machine ddbcpu 1
Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
dt_ioctl_record_stop(ffff8000016b8000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a2a7d70) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806cf6abe8,1,fffffd80097fd068,ffff80003a3d7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8074701750,ffff80003a3d7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffd8074701750,ffff80003a3d7a28) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff80003a3d7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff80003a3d7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003a3d7a28,ffff80002a2a80e0,ffff80002a2a8030) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2a80e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2a80e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x713c844f0720, count: 3
ddb{1}> trace
dt_ioctl_record_stop(ffff8000016b8000) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80003a3d7a28) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a2a7d70) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd806cf6abe8,1,fffffd80097fd068,ffff80003a3d7a28) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd8074701750,ffff80003a3d7a28) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd8074701750,ffff80003a3d7a28) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffd8074701750,ffff80003a3d7a28) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff80003a3d7a28) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff80003a3d7a28,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff80003a3d7a28,ffff80002a2a80e0,ffff80002a2a8030) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2a80e0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2a80e0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x713c844f0720, count: -12