panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x792015216000, opte 0xffffffffffffffff
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*362069 84773 0 0x14000 0x200 0 reaper
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828c2ec8) at panic+0x165 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd8079c81520,fffffd80062f1700,7fbc900a9000,792015200000,79201522c000,0,d637a8df3c4da04a) at pmap_remove_ptes+0x33e
pmap_do_remove(fffffd8079c81520,79201512c000,79201522c000,0) at pmap_do_remove+0x427 sys/arch/amd64/amd64/pmap.c:1896
uvm_unmap_kill_entry_withlock(fffffd80074a22b0,fffffd806b5a2a40,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd80074a22b0) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: 7
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: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x792015216000, opte 0xffffffffffffffff
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828c2ec8) at panic+0x165 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd8079c81520,fffffd80062f1700,7fbc900a9000,792015200000,79201522c000,0,d637a8df3c4da04a) at pmap_remove_ptes+0x33e
pmap_do_remove(fffffd8079c81520,79201512c000,79201522c000,0) at pmap_do_remove+0x427 sys/arch/amd64/amd64/pmap.c:1896
uvm_unmap_kill_entry_withlock(fffffd80074a22b0,fffffd806b5a2a40,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd80074a22b0) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -8
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a5d52b0
rbx 0
rdx 0
rcx 0
rax 0xffff80002a5d7c38
r8 0x101010101010101
r9 0x8080808080808080
r10 0xafc6411f148e8457
r11 0xf27fd354e50097b6
r12 0
r13 0x7fbc900a90b0
r14 0
r15 0x1
rip 0xffffffff8268fd8c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002a5d52a0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb> show proc
PROC (reaper) tid=362069 pid=84773 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=4, usrpri=63, slppri=4, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a58d480,0xffff80002a5d7728
process=0xffff8000ffffee10 user=0xffff80002a5d0000, vmspace=0xffffffff82e53f60
estcpu=13, cpticks=22, pctcpu=0.60, user=0, sys=21, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
16291 264338 62237 0 2 0x8000000 syz-executor.4
16291 237160 62237 0 2 0xc000000 syz-executor.4
30274 226520 12071 0 2 0x8000000 syz-executor.0
30274 359041 12071 0 3 0xc000080 fsleep syz-executor.0
41280 139810 48935 0 2 0x8000000 syz-executor.3
41280 32170 48935 0 3 0xc000080 fsleep syz-executor.3
95748 244697 82736 0 2 0x8000002 syz-executor.5
48935 493185 82736 0 3 0x8000082 nanoslp syz-executor.3
62237 208852 82736 0 3 0x8000082 nanoslp syz-executor.4
95342 285605 1 0 3 0x18100083 ttyin getty
12071 368355 82736 0 3 0x8000082 nanoslp syz-executor.0
59519 119961 82736 0 3 0x8000002 biowait syz-executor.6
2709 83911 82736 0 2 0x8000002 syz-executor.1
13224 445699 82736 0 3 0x8000082 nanoslp syz-executor.2
55018 151206 82736 0 3 0x8000002 biowait syz-executor.7
60779 318780 0 0 3 0x14200 bored sosplice
82736 331045 52661 0 3 0x1a000082 wait syz-fuzzer
82736 148423 52661 0 3 0x1e000082 nanoslp syz-fuzzer
82736 129490 52661 0 3 0x1e000082 thrsleep syz-fuzzer
82736 245632 52661 0 3 0x1e000082 wait syz-fuzzer
82736 375547 52661 0 3 0x1e000082 wait syz-fuzzer
82736 475422 52661 0 3 0x1e000082 thrsleep syz-fuzzer
82736 407641 52661 0 3 0x1e000082 thrsleep syz-fuzzer
82736 335525 52661 0 3 0x1e000082 wait syz-fuzzer
82736 124418 52661 0 3 0x1e000082 wait syz-fuzzer
82736 523978 52661 0 3 0x1e000082 wait syz-fuzzer
82736 517902 52661 0 3 0x1e000082 thrsleep syz-fuzzer
82736 321295 52661 0 3 0x1e000082 wait syz-fuzzer
82736 108398 52661 0 3 0x1e000082 wait syz-fuzzer
82736 162805 52661 0 2 0x1e000002 syz-fuzzer
82736 268769 52661 0 3 0x1e000082 thrsleep syz-fuzzer
52661 230373 43171 0 3 0x810008a sigsusp ksh
43171 161571 89618 0 3 0x1800009a kqread sshd
89618 54660 1 0 3 0x18000088 kqread sshd
8171 408812 32431 73 3 0x19100090 kqread syslogd
32431 151327 1 0 3 0x18100082 sbwait syslogd
23469 169228 1 0 3 0x18100080 kqread resolvd
77234 311676 65839 77 3 0x18100092 kqread dhcpleased
67519 128190 65839 77 3 0x18100092 kqread dhcpleased
65839 99355 1 0 3 0x18000080 kqread dhcpleased
58956 283715 0 0 3 0x14200 bored smr
52383 381286 0 0 2 0x14200 zerothread
41488 84084 0 0 3 0x14200 aiodoned aiodoned
71583 352145 0 0 3 0x14200 syncer update
56574 162145 0 0 3 0x14200 cleaner cleaner
*84773 362069 0 0 7 0x14200 reaper
71964 88364 0 0 3 0x14200 pgdaemon pagedaemon
5484 302593 0 0 3 0x14200 bored viomb
8565 44156 0 0 3 0x40014200 acpi0 acpi0
17337 73150 0 0 3 0x14200 bored softnet3
32221 254739 0 0 3 0x14200 bored softnet2
68326 467079 0 0 3 0x14200 bored softnet1
78900 144613 0 0 3 0x14200 bored softnet0
63331 14312 0 0 3 0x14200 bored systqmp
91809 50107 0 0 3 0x14200 bored systq
27027 429339 0 0 3 0x40014200 tmoslp softclock
19869 470552 0 0 3 0x40014200 idle0
1 151650 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10231 6821K 7080K 166960K 23698 0
pcb 17 24K 26K 166960K 963 0
rtable 239 10K 10K 166960K 8628 0
pf 35 9K 11K 166960K 752 0
ifaddr 45 15K 15K 166960K 1172 0
ifgroup 62 2K 3K 166960K 1405 0
sysctl 4 1K 3K 166960K 10 0
counters 33 17K 18K 166960K 363 0
ioctlops 0 0K 2K 166960K 555 0
iov 0 0K 24K 166960K 337 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1635 103K 103K 166960K 11324 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 13K 166960K 130 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 872 0
dirhash 12 2K 3K 166960K 159 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 13 45K 105K 166960K 9441 0
sigio 0 0K 0K 166960K 144 0
proc 58 59K 124K 166960K 8157 0
subproc 104 6K 9K 166960K 3748 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 788 0
in_multi 97 7K 7K 166960K 3173 0
ether_multi 1 0K 0K 166960K 46 0
mrt 1 0K 0K 166960K 12 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 229 1023K 1023K 166960K 229 0
exec 0 0K 1K 166960K 4460 0
pfkey data 0 0K 0K 166960K 10 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 280 164K 165K 166960K 71774 0
UVM aobj 131 4K 5K 166960K 140 0
pinsyscall 33 66K 112K 166960K 17613 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 449 0
NDP 14 0K 2K 166960K 877 0
temp 75 6812K 6940K 166960K 196160 0
kqueue 12 18K 28K 166960K 672 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 1238 0 1234 2 0 2 2 0 8 1
rtentry 112 3088 0 2985 4 0 4 4 0 8 0
unpcb 144 5224 0 5211 6 0 6 6 0 8 5
syncache 336 4 0 4 1 0 1 1 0 8 1
tcpcb 808 3412 0 3407 36 27 9 27 0 8 8
arp 88 567 0 552 1 0 1 1 0 8 0
ipq 40 13 0 12 1 0 1 1 0 8 0
ipqe 40 201 0 200 1 0 1 1 0 8 0
inpcb 352 10162 0 10153 43 34 9 25 0 8 8
nd6 104 839 0 812 1 0 1 1 0 8 0
pkpcb 40 33 0 33 1 0 1 1 0 8 1
kcovpl 48 288 0 280 1 0 1 1 0 8 0
ppxss 1072 19 0 19 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 12273 0 11804 192 162 30 30 0 8 0
art_table 32 12274 0 11804 4 0 4 4 0 8 0
art_node 16 3070 0 2977 1 0 1 1 0 8 0
sysvmsgpl 40 12 0 5 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 867 0 857 1 0 1 1 0 8 0
shmpl 112 137 0 9 4 0 4 4 0 8 0
dirhash 1024 115 0 98 3 0 3 3 0 8 0
dino2pl 256 11957 0 10446 96 0 96 96 0 8 0
ffsino 240 11957 0 10446 90 0 90 90 0 8 0
nchpl 144 22042 0 20307 66 0 66 66 0 8 1
uvmvnodes 80 9270 0 0 190 0 190 190 0 8 0
vnodes 216 9270 0 0 515 0 515 515 0 8 0
namei 1024 106734 0 106734 2 0 2 2 0 8 2
vcpupl 3904 15 0 2 2 0 2 2 0 8 0
vmpool 664 29 0 16 2 0 2 2 0 8 0
kstatmem 264 688 0 660 3 0 3 3 0 8 1
scsiplug 72 3 0 3 1 0 1 1 0 8 1
scxspl 216 151308 0 151306 8 0 8 8 1 8 7
plimitpl 152 1736 0 1721 1 0 1 1 0 8 0
sigapl 424 9207 0 9165 9 0 9 9 0 8 1
futexpl 64 94114 0 94112 1 0 1 1 0 8 0
knotepl 120 21382 0 21300 11 0 11 11 0 8 4
kqueuepl 184 1581 0 1573 4 0 4 4 0 8 3
pipepl 288 2014 0 1986 7 0 7 7 0 8 4
fdescpl 432 9168 0 9144 5 0 5 5 0 8 1
filepl 120 58711 0 58466 18 3 15 17 0 8 5
lockfpl 104 1613 0 1609 1 0 1 1 0 8 0
lockfspl 48 602 0 598 1 0 1 1 0 8 0
sessionpl 144 290 0 274 1 0 1 1 0 8 0
pgrppl 48 560 0 544 1 0 1 1 0 8 0
ucredpl 104 7536 0 7524 1 0 1 1 0 8 0
zombiepl 144 9166 0 9165 1 0 1 1 0 8 0
processpl 1072 9207 0 9165 6 0 6 6 0 8 1
procpl 656 16636 0 16577 9 0 9 9 0 8 1
sosppl 168 75 0 75 1 0 1 1 0 8 1
sockpl 504 16745 0 16719 169 158 11 36 0 8 7
mcl64k 65536 19 0 19 1 0 1 1 0 8 1
mcl12k 12288 26 0 26 1 0 1 1 0 8 1
mcl9k 9216 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 213 0 213 1 0 1 1 0 8 1
mcl4k 4096 126 0 126 1 0 1 1 0 8 1
mcl2k2 2112 4 0 4 1 0 1 1 0 8 1
mcl2k 2048 67213 0 67111 37 16 21 34 0 8 6
mtagpl 96 381 0 299 3 0 3 3 0 8 0
mbufpl 256 205123 0 204862 96 72 24 49 0 8 2
bufpl 280 23158 0 13886 663 0 663 663 0 8 0
anonpl 24 1095276 0 1089154 139 0 139 139 0 188 75
amapchunkpl 152 227661 0 227028 58 0 58 58 0 158 29
amappl16 200 19171 0 19046 71 55 16 23 0 8 8
amappl15 192 378 0 377 1 0 1 1 0 8 0
amappl14 184 951 0 940 2 0 2 2 0 8 1
amappl13 176 17 0 17 1 0 1 1 0 8 1
amappl12 168 13676 0 13651 3 0 3 3 0 8 1
amappl11 160 57 0 47 1 0 1 1 0 8 0
amappl10 152 507 0 496 1 0 1 1 0 8 0
amappl9 144 142 0 142 1 0 1 1 0 8 1
amappl8 136 867 0 835 2 0 2 2 0 8 0
amappl7 128 79 0 64 1 0 1 1 0 8 0
amappl6 120 3701 0 3684 2 0 2 2 0 8 0
amappl5 112 1208 0 1196 1 0 1 1 0 8 0
amappl4 104 2422 0 2391 2 0 2 2 0 8 1
amappl3 96 41309 0 41238 3 0 3 3 0 8 0
amappl2 88 10302 0 10231 3 0 3 3 0 8 1
amappl1 80 54382 0 53895 22 2 20 22 0 8 7
amappl 88 69021 0 68837 6 0 6 6 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 139 0 9 3 0 3 3 0 8 0
uaddrrnd 24 9197 0 9160 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 9197 0 9160 1 0 1 1 0 8 0
vmmpekpl 168 72032 0 71979 4 0 4 4 0 8 0
vmmpepl 168 622272 0 620526 111 0 111 111 0 357 23
vmsppl 344 9196 0 9159 4 0 4 4 0 8 0
rwobjpl 24 148169 0 137706 65 0 65 65 0 8 0
pdppl 4096 18400 0 18331 735 659 76 86 0 8 7
pvpl 32 3356104 0 3344396 361 14 347 361 0 265 207
pmappl 216 9196 0 9159 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1471 0 1094 12 0 12 12 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828c2ec8) at panic+0x165 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd8079c81520,fffffd80062f1700,7fbc900a9000,792015200000,79201522c000,0,d637a8df3c4da04a) at pmap_remove_ptes+0x33e
pmap_do_remove(fffffd8079c81520,79201512c000,79201522c000,0) at pmap_do_remove+0x427 sys/arch/amd64/amd64/pmap.c:1896
uvm_unmap_kill_entry_withlock(fffffd80074a22b0,fffffd806b5a2a40,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd80074a22b0) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -8
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828c2ec8) at panic+0x165 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd8079c81520,fffffd80062f1700,7fbc900a9000,792015200000,79201522c000,0,d637a8df3c4da04a) at pmap_remove_ptes+0x33e
pmap_do_remove(fffffd8079c81520,79201512c000,79201522c000,0) at pmap_do_remove+0x427 sys/arch/amd64/amd64/pmap.c:1896
uvm_unmap_kill_entry_withlock(fffffd80074a22b0,fffffd806b5a2a40,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd80074a22b0) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd80074a22b0) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -8