uvm_fault(0xfffffd806cb0db88, 0x20, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at mtx_enter_try+0x7b: movl 0x8(%r14),%r15d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290
mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261
clockintr_unbind(ffff8000014d2130,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001467000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff800030fca0d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805f0bf998,1,fffffd80097fd340,ffff8000fffe87e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd800deab728,ffff8000fffe87e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd800deab728,ffff8000fffe87e8) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffe87e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffe87e8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffe87e8,ffff800030fca440,ffff800030fca390) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800030fca440) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800030fca440) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
end trace frame: 0xffff800030fca4c0, count: 0
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xfffffd806cb0db88, 0x20, 0, 1) -> e
ddb{0}> trace
mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290
mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261
clockintr_unbind(ffff8000014d2130,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001467000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff800030fca0d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805f0bf998,1,fffffd80097fd340,ffff8000fffe87e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd800deab728,ffff8000fffe87e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd800deab728,ffff8000fffe87e8) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffe87e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffe87e8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffe87e8,ffff800030fca440,ffff800030fca390) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800030fca440) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800030fca440) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x708fbe906080, count: -15
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800030fc9f30
rbx 0
rdx 0
rcx 0xffff8000fffe87e8
rax 0xffffffff83806f00 cpu_info_full_primary+0x1f00
r8 0
r9 0
r10 0x8bed7e15ab756d9e
r11 0x472d3123e30575ec
r12 0x1
r13 0xffffffff83806ff0 cpu_info_full_primary+0x1ff0
r14 0x18
r15 0
rip 0xffffffff828b9bcb mtx_enter_try+0x7b
cs 0x8
rflags 0x10297 __ALIGN_SIZE+0xf297
rsp 0xffff800030fc9ef0
ss 0x10
mtx_enter_try+0x7b: movl 0x8(%r14),%r15d
ddb{0}> show proc
PROC (syz-executor) tid=78129 pid=87441 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=0xffff8000fffe87e8 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff80002a27c548,0xffff8000ffffdca0
process=0xffff8000fffed828 user=0xffff800030fc5000, vmspace=0xfffffd806cb0db88
estcpu=36, cpticks=4, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
77529 152218 45166 0 2 0 syz-executor
77529 140555 45166 0 2 0x4000000 syz-executor
77529 317400 45166 0 2 0x4000000 syz-executor
10046 487670 9308 -1 2 0x10 syz-executor
10046 357294 9308 -1 3 0x4000090 fsleep syz-executor
74636 329499 92367 0 2 0x4000000 syz-executor
74636 336785 92367 0 3 0x4000080 fsleep syz-executor
26812 343312 61947 -1 3 0x90 nanoslp syz-executor
26812 406369 61947 -1 3 0x4000090 netacc syz-executor
26812 144637 61947 -1 3 0x4000090 fsleep syz-executor
26812 200776 61947 -1 3 0x4000090 fsleep syz-executor
26812 328408 61947 -1 3 0x4000090 fsleep syz-executor
49025 217261 34977 60929 3 0x90 nanoslp syz-executor
49025 491393 34977 60929 3 0x4000090 kqsel syz-executor
49025 439851 34977 60929 3 0x4000090 fsleep syz-executor
49025 523494 34977 60929 3 0x4000090 fsleep syz-executor
57764 513518 10614 0 3 0x82 nanoslp syz-executor
61947 216225 10614 0 3 0x82 nanoslp syz-executor
45166 236992 10614 0 3 0x82 nanoslp syz-executor
34977 513231 10614 0 3 0x82 nanoslp syz-executor
92367 303363 10614 0 3 0x82 nanoslp syz-executor
44421 373143 10614 0 3 0x82 nanoslp syz-executor
89309 371481 10614 0 3 0x82 wait syz-executor
9308 329530 10614 0 3 0x82 nanoslp syz-executor
10614 474202 35939 0 3 0x82 kqread syz-executor
35939 109591 88365 0 3 0x10008a sigsusp ksh
88365 512576 40110 0 3 0x98 kqread sshd-session
40110 281253 74662 0 3 0x92 kqread sshd-session
99244 429086 1 0 3 0x100083 ttyopn getty
74662 130185 1 0 3 0x88 kqread sshd
22504 159057 45818 74 3 0x1100092 bpf pflogd
45818 157958 1 0 3 0x80 sbwait pflogd
95496 55180 1949 73 3 0x1100090 kqread syslogd
1949 402895 1 0 3 0x100082 sbwait syslogd
33338 53739 1 0 3 0x100080 kqread resolvd
64867 65994 58669 77 3 0x100092 kqread dhcpleased
91483 192365 58669 77 3 0x100092 kqread dhcpleased
58669 99207 1 0 3 0x80 kqread dhcpleased
3382 64272 0 0 3 0x14200 bored smr
72090 552 0 0 2 0x14200 zerothread
56094 349648 0 0 3 0x14200 aiodoned aiodoned
40699 222916 0 0 3 0x14200 syncer update
99549 381844 0 0 3 0x14200 cleaner cleaner
29191 94622 0 0 2 0x14200 reaper
8788 288340 0 0 3 0x14200 pgdaemon pagedaemon
60188 111374 0 0 3 0x14200 bored viomb
27498 149837 0 0 3 0x40014200 acpi0 acpi0
97892 505495 0 0 7 0x40014200 idle1
41560 130733 0 0 3 0x14200 bored softnet1
61570 203054 0 0 3 0x14200 bored softnet0
13283 210713 0 0 3 0x14200 bored systqmp
68395 319659 0 0 3 0x14200 bored systq
67983 447612 0 0 3 0x14200 tmoslp softclockmp
3611 341604 0 0 3 0x40014200 tmoslp softclock
71203 267247 0 0 3 0x40014200 idle0
1 10364 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 77529 (syz-executor) thread 0xffff8000fffe8d18 (140555)
Process 29191 (reaper) thread 0xffff8000ffffd760 (94622)
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10216 11068K 11357K 166960K 12767 0
pcb 17 15K 16K 166960K 272 0
rtable 208 12K 12K 166960K 656 0
pf 32 17K 21K 166960K 161 0
ifaddr 34 5K 7K 166960K 116 0
ifgroup 51 2K 2K 166960K 194 0
sysctl 2 1K 9K 166960K 8 0
counters 68 36K 37K 166960K 234 0
ioctlops 0 0K 4K 166960K 1631 0
iov 0 0K 24K 166960K 41 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1339 84K 84K 166960K 2060 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 20 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 52 0
dirhash 60 10K 11K 166960K 231 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 240K 166960K 1083 0
sigio 1 0K 0K 166960K 25 0
proc 78 147K 164K 166960K 727 0
subproc 72 4K 4K 166960K 108 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 123 0
in_multi 64 4K 7K 166960K 171 0
ether_multi 1 0K 0K 166960K 11 0
mrt 0 0K 0K 166960K 12 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 103 466K 466K 166960K 103 0
exec 0 0K 1K 166960K 619 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 262 152K 167K 166960K 11487 0
UVM aobj 34 6K 6K 166960K 37 0
pinsyscall 43 86K 106K 166960K 2320 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 177 0
NDP 11 0K 2K 166960K 85 0
temp 81 8680K 8760K 166960K 52099 0
kqueue 14 22K 28K 166960K 190 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> 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 120 137 0 134 2 0 2 2 0 8 1
rtentry 176 176 0 103 6 0 6 6 0 8 0
unpcb 144 1249 0 1231 11 7 4 6 0 8 3
syncache 336 10 0 10 5 4 1 1 0 8 1
tcpqe 32 3 0 3 2 1 1 1 0 8 1
tcpcb 736 449 0 439 10 8 2 7 0 8 1
arp 136 29 0 16 1 0 1 1 0 8 0
inpcb 328 1252 0 1235 19 15 4 12 0 8 2
nd6 152 38 0 21 1 0 1 1 0 8 0
pkpcb 40 3 0 3 2 1 1 1 0 8 1
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1192 67 0 67 1 0 1 1 0 8 1
pppxif 1504 3 0 3 2 1 1 1 0 8 1
pffrag 232 9 0 1 1 0 1 1 0 482 0
pffrnode 88 9 0 1 1 0 1 1 0 8 0
pffrent 40 81 0 71 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 3 0 3 2 2 0 1 0 8 0
pfstitem 24 29 0 13 1 0 1 1 0 8 0
pfstkey 128 29 0 13 1 0 1 1 0 8 0
pfstate 448 29 0 13 3 0 3 3 0 8 0
pfrule 1344 24 0 18 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 5 0 1 4 0 4 4 0 8 0
art_heap4 256 708 0 403 30 10 20 29 0 8 0
art_table 40 713 0 404 5 0 5 5 0 8 0
art_node 32 176 0 111 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 49 0 39 1 0 1 1 0 8 0
shmpl 112 31 0 2 1 0 1 1 0 8 0
dirhash 1024 93 0 60 5 0 5 5 0 8 0
dino2pl 256 3261 0 1755 95 0 95 95 0 8 0
ffsino 296 3261 0 1755 117 0 117 117 0 8 0
nchpl 144 4691 0 2978 64 0 64 64 0 8 0
rtmask 32 19 0 19 3 2 1 1 0 8 1
vnodes 216 3704 0 0 206 0 206 206 0 8 0
namei 1024 16295 0 16295 3 2 1 2 0 8 1
percpumem 16 132 0 83 1 0 1 1 0 8 0
vcpupl 3968 2 0 0 1 0 1 1 0 8 0
vmpool 840 3 0 1 2 1 1 1 0 8 0
kstatmem 264 126 0 100 4 1 3 3 0 8 0
scsiplug 72 69 0 69 2 2 0 1 0 8 0
scxspl 216 27255 0 27255 10 9 1 8 1 8 1
plimitpl 152 257 0 239 1 0 1 1 0 8 0
sigapl 424 1366 0 1318 7 1 6 7 0 8 0
knotepl 120 533 0 0 17 0 17 17 0 8 0
kqueuepl 224 607 0 595 14 11 3 5 0 8 2
pipepl 344 217 0 190 5 1 4 4 0 8 1
fdescpl 528 1348 0 1316 3 0 3 3 0 8 0
filepl 160 8519 0 8292 29 13 16 19 0 8 4
lockfpl 104 554 0 552 2 1 1 2 0 8 0
lockfspl 48 196 0 194 1 0 1 1 0 8 0
sessionpl 144 33 0 24 1 0 1 1 0 8 0
pgrppl 48 120 0 103 1 0 1 1 0 8 0
ucredpl 104 1019 0 1002 1 0 1 1 0 8 0
zombiepl 144 1753 0 1750 1 0 1 1 0 8 0
processpl 1232 1366 0 1318 5 1 4 5 0 8 0
procpl 664 2874 0 2814 6 0 6 6 0 8 0
sosppl 176 8 0 8 2 2 0 1 0 8 0
sockpl 752 2672 0 2633 55 43 12 25 0 8 7
mcl64k 65536 3 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 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 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 125 0 0 16 0 16 16 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 50 0 0 7 1 6 7 0 8 0
mtagpl 96 20 0 0 1 0 1 1 0 8 0
mbufpl 256 363 0 0 23 0 23 23 0 8 0
bufpl 280 11861 0 5725 439 0 439 439 0 8 0
anonpl 32 11647 0 0 94 0 94 94 0 246 0
amapchunkpl 152 37433 0 36895 38 6 32 34 0 158 8
amappl16 200 4758 0 4723 52 40 12 28 0 8 2
amappl15 192 4 0 4 1 1 0 1 0 8 0
amappl14 184 7 0 5 1 0 1 1 0 8 0
amappl13 176 472 0 471 1 0 1 1 0 8 0
amappl12 168 1754 0 1711 3 0 3 3 0 8 0
amappl11 160 4 0 3 2 1 1 1 0 8 0
amappl10 152 46 0 32 1 0 1 1 0 8 0
amappl9 144 255 0 255 1 1 0 1 0 8 0
amappl8 136 32 0 29 1 0 1 1 0 8 0
amappl7 128 97 0 96 1 0 1 1 0 8 0
amappl6 120 334 0 320 1 0 1 1 0 8 0
amappl5 112 79 0 69 1 0 1 1 0 8 0
amappl4 104 482 0 450 1 0 1 1 0 8 0
amappl3 96 6587 0 6489 4 1 3 3 0 8 0
amappl2 88 1504 0 1427 2 0 2 2 0 8 0
amappl1 80 15135 0 14542 15 0 15 15 0 8 0
amappl 88 10499 0 10315 5 0 5 5 0 92 0
uvmvnodes 80 135 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
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 6 0 6 1 1 0 1 0 8 0
dma32 32 8 0 8 2 2 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 36 0 3 1 0 1 1 0 8 0
uaddrrnd 24 1348 0 1316 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1348 0 1316 1 0 1 1 0 8 0
vmmpekpl 168 12835 0 12778 3 0 3 3 0 8 0
vmmpepl 168 94045 0 92040 123 22 101 109 0 357 1
vmsppl 488 1347 0 1316 5 0 5 5 0 8 0
rwobjpl 80 28249 0 27133 35 4 31 32 0 8 0
pdppl 4096 2710 0 2636 116 38 78 88 0 8 4
pvpl 32 18292 0 0 149 1 148 148 0 265 0
pmappl 256 1350 0 1317 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 327 0 66 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
mtx_enter_try(18) at mtx_enter_try+0x7b sys/kern/kern_lock.c:290
mtx_enter(18) at mtx_enter+0x62 sys/kern/kern_lock.c:261
clockintr_unbind(ffff8000014d2130,1) at clockintr_unbind+0x56 sys/kern/kern_clockintr.c:375
dt_ioctl_record_stop(ffff800001467000) at dt_ioctl_record_stop+0xbc sys/dev/dt/dt_dev.c:589
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff8000fffe87e8) at dtclose+0x109 sys/dev/dt/dt_dev.c:239
spec_close(ffff800030fca0d0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffffd805f0bf998,1,fffffd80097fd340,ffff8000fffe87e8) at VOP_CLOSE+0x132 sys/kern/vfs_vops.c:156
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd800deab728,ffff8000fffe87e8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615
fdrop(fffffd800deab728,ffff8000fffe87e8) at fdrop+0x121 sys/kern/kern_descrip.c:1280
closef(fffffd800deab728,ffff8000fffe87e8) at closef+0x192 sys/kern/kern_descrip.c:1264
fdfree(ffff8000fffe87e8) at fdfree+0x116 sys/kern/kern_descrip.c:1195
exit1(ffff8000fffe87e8,0,0,1) at exit1+0x576 sys/kern/kern_exit.c:215
sys_exit(ffff8000fffe87e8,ffff800030fca440,ffff800030fca390) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff800030fca440) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800030fca440) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x708fbe906080, count: -15
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299ddff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) 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
acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224
sched_idle(ffff8000299ddff0) at sched_idle+0x391 sys/kern/kern_sched.c:191
end trace frame: 0x0, count: -5