panic: pmap_remove_ptes: unmanaged page marked PG_PVLIST: va 0x7f7fffe16000, opte 0xffffffffffffffff
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*199304 97061 0 0x14000 0x200 0 reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8259516e) at panic+0x161 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd806a039d88,fffffd8005e34000,7fbfbffff000,7f7fffe00000,7f7fffef4000,0,4f7641876f0d6f63) at pmap_remove_ptes+0x32e
pmap_do_remove(fffffd806a039d88,7f7fff7f4000,7f7fffef4000,0) at pmap_do_remove+0x438 sys/arch/amd64/amd64/pmap.c:1864
uvm_unmap_kill_entry_withlock(fffffd8066f25ee8,fffffd806b865310,0) at uvm_unmap_kill_entry_withlock+0x1a2 sys/uvm/uvm_map.c:1928
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 sys/uvm/uvm_map.c:2578
uvmspace_free(fffffd8066f25ee8) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3504
reaper(ffff8000ffff9ce8) at reaper+0x15d sys/kern/kern_exit.c:448
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 0x7f7fffe16000, opte 0xffffffffffffffff
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8259516e) at panic+0x161 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd806a039d88,fffffd8005e34000,7fbfbffff000,7f7fffe00000,7f7fffef4000,0,4f7641876f0d6f63) at pmap_remove_ptes+0x32e
pmap_do_remove(fffffd806a039d88,7f7fff7f4000,7f7fffef4000,0) at pmap_do_remove+0x438 sys/arch/amd64/amd64/pmap.c:1864
uvm_unmap_kill_entry_withlock(fffffd8066f25ee8,fffffd806b865310,0) at uvm_unmap_kill_entry_withlock+0x1a2 sys/uvm/uvm_map.c:1928
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 sys/uvm/uvm_map.c:2578
uvmspace_free(fffffd8066f25ee8) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3504
reaper(ffff8000ffff9ce8) at reaper+0x15d sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff8000216c0a70
rbx 0xfffffd8005e34000
rdx 0
rcx 0
rax 0xffff8000ffff9ce8
r8 0x101010101010101
r9 0x8080808080808080
r10 0xf47f948474e03b88
r11 0x81f80ff462b23cbc
r12 0
r13 0
r14 0
r15 0x1
rip 0xffffffff815e9608 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000216c0a60
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
PROC (reaper) pid=199304 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=4, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffffce0,0xffff8000ffff9a58
process=0xffff8000ffffa7d8 user=0xffff8000216bb000, vmspace=0xffffffff82ad2438
estcpu=0, cpticks=1, pctcpu=0.2
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
39692 475115 24392 0 3 0x82 nanoslp syz-executor.3
76142 173968 24392 0 2 0x2 syz-executor.6
59384 329600 24392 0 2 0x2 syz-executor.1
16318 106954 24392 0 3 0x82 piperd syz-executor.0
58686 228726 24392 0 3 0x82 nanoslp syz-executor.5
95984 13794 24392 0 3 0x82 piperd syz-executor.7
88735 9827 24392 0 3 0x82 piperd syz-executor.2
93784 136466 1 0 3 0x100083 ttyopn getty
31760 408575 0 0 3 0x14200 bored sosplice
24392 154915 20339 0 3 0x82 wait syz-fuzzer
24392 162304 20339 0 2 0x4000002 syz-fuzzer
24392 151123 20339 0 3 0x4000082 thrsleep syz-fuzzer
24392 522130 20339 0 3 0x4000082 thrsleep syz-fuzzer
24392 230898 20339 0 3 0x4000082 thrsleep syz-fuzzer
24392 165660 20339 0 2 0x4000082 syz-fuzzer
24392 412120 20339 0 3 0x4000082 wait syz-fuzzer
24392 407097 20339 0 3 0x4000082 thrsleep syz-fuzzer
24392 134283 20339 0 3 0x4000082 wait syz-fuzzer
24392 311968 20339 0 3 0x4000082 wait syz-fuzzer
24392 251746 20339 0 3 0x4000082 wait syz-fuzzer
24392 71635 20339 0 3 0x4000082 wait syz-fuzzer
24392 159517 20339 0 3 0x4000082 wait syz-fuzzer
24392 105606 20339 0 3 0x4000082 wait syz-fuzzer
24392 502777 20339 0 3 0x4000082 thrsleep syz-fuzzer
20339 56156 33148 0 3 0x10008a sigsusp ksh
33148 201406 57176 0 3 0x9a kqread sshd
57176 64652 1 0 3 0x88 kqread sshd
16574 372424 14467 73 3 0x1100090 kqread syslogd
14467 17259 1 0 3 0x100082 netio syslogd
21824 404987 1 0 3 0x100080 kqread resolvd
92931 165227 15662 77 3 0x100092 kqread dhcpleased
1740 263405 15662 77 3 0x100092 kqread dhcpleased
15662 163562 1 0 3 0x80 kqread dhcpleased
61542 39774 0 0 3 0x14200 bored smr
12697 413296 0 0 2 0x14200 zerothread
88676 416895 0 0 3 0x14200 aiodoned aiodoned
53595 47558 0 0 3 0x14200 syncer update
91699 70589 0 0 3 0x14200 cleaner cleaner
*97061 199304 0 0 7 0x14200 reaper
7494 232454 0 0 3 0x14200 pgdaemon pagedaemon
42940 247765 0 0 3 0x14200 bored viomb
62051 208442 0 0 3 0x40014200 acpi0 acpi0
84665 328655 0 0 3 0x14200 bored softnet
37957 137723 0 0 3 0x14200 bored softnet
96528 126783 0 0 3 0x14200 bored softnet
28135 315995 0 0 3 0x14200 bored softnet
16050 375321 0 0 3 0x14200 bored systqmp
85858 221633 0 0 3 0x14200 bored systq
60991 427325 0 0 3 0x40014200 bored softclock
8880 140515 0 0 3 0x40014200 idle0
1 226492 0 0 3 0x82 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 10232 6621K 7340K 78643K 47363 0
pcb 13 16K 18K 78643K 2315 0
rtable 206 17K 18K 78643K 7004 0
ifaddr 303 75K 77K 78643K 3547 0
sysctl 3 1K 1K 78643K 3 0
counters 25 17K 17K 78643K 222 0
ioctlops 0 0K 4K 78643K 22074 0
iov 0 0K 24K 78643K 791 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1434 90K 90K 78643K 13117 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 78 0
VM map 2 0K 0K 78643K 2 0
sem 14 2K 3K 78643K 39 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 10 33K 69K 78643K 25934 0
sigio 0 0K 0K 78643K 151 0
proc 61 59K 83K 78643K 1711 0
subproc 91 5K 6K 78643K 455 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 11684 0
in_multi 77 5K 6K 78643K 4469 0
ether_multi 1 0K 0K 78643K 73 0
mrt 1 0K 0K 78643K 531 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 241 1076K 1076K 78643K 241 0
exec 0 0K 1K 78643K 1520 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 8 62K 64K 78643K 10 0
UVM amap 423 386K 388K 78643K 158460 0
UVM aobj 27 2K 2K 78643K 28 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 369 0
NDP 11 0K 2K 78643K 806 0
temp 125 4730K 5754K 78643K 130193 0
kqueue 12 18K 24K 78643K 1000 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 398 0 395 4 3 1 2 0 8 0
rtentry 112 3099 0 3016 4 1 3 4 0 8 0
unpcb 144 11082 0 11069 107 106 1 10 0 8 0
syncache 296 118 0 118 11 11 0 1 0 8 0
tcpqe 32 59 0 59 8 8 0 1 0 8 0
tcpcb 768 25967 0 25958 648 640 8 38 0 8 7
arp 88 77 0 63 1 0 1 1 0 8 0
ipq 40 10 0 9 4 3 1 1 0 8 0
ipqe 40 31 0 30 4 3 1 1 0 8 0
inpcb 336 42858 0 42851 303 296 7 23 0 8 6
ip6q 72 5 0 5 2 2 0 1 0 8 0
ip6af 40 9 0 9 2 2 0 1 0 8 0
nd6 48 673 0 654 1 0 1 1 0 8 0
pkpcb 40 28 0 28 7 7 0 1 0 8 0
kcovpl 48 35 0 28 1 0 1 1 0 8 0
mppekey 1024 4 0 4 2 2 0 1 0 8 0
ppxss 1160 105 0 105 14 14 0 1 0 8 0
pppxif 1608 32 0 32 9 9 0 1 0 8 0
pfstscr 40 61 0 56 1 0 1 1 0 8 0
pfosfp 40 19 0 18 4 3 1 1 0 8 0
pfosfpen 112 19 0 18 4 3 1 1 0 8 0
pfrktable 1344 126 0 124 3 2 1 2 0 8 0
pfanchor 1280 1007 292 495 43 0 43 43 0 8 0
pftag 88 32 0 18 1 0 1 1 0 8 0
pfqueue 264 13 0 13 6 6 0 1 0 8 0
pfstitem 24 31 0 21 1 0 1 1 0 8 0
pfstkey 120 158 0 155 1 0 1 1 0 8 0
pfstate 336 118 0 113 1 0 1 1 0 8 0
pfrule 1360 6038 0 4457 136 4 132 132 0 8 0
rttmr 136 227 0 227 9 9 0 1 0 8 0
art_heap8 4096 9 0 8 7 6 1 3 0 8 0
art_heap4 256 25739 0 25360 48 20 28 30 0 8 0
art_table 32 25748 0 25368 4 0 4 4 0 8 0
art_node 16 3086 0 3015 1 0 1 1 0 8 0
sysvmsgpl 40 42 0 21 1 0 1 1 0 8 0
semapl 112 33 0 21 1 0 1 1 0 8 0
shmpl 112 25 0 1 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 31754 0 30292 92 0 92 92 0 8 0
ffsino 240 31754 0 30292 88 1 87 87 0 8 0
nchpl 144 61010 0 59377 63 1 62 63 0 8 0
rtmask 32 11 0 11 3 3 0 1 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 200713 0 200713 6 5 1 3 0 8 1
vcpupl 2048 55 0 2 7 0 7 7 0 8 0
vmpool 536 80 0 27 5 1 4 4 0 8 0
pfiaddrpl 120 256 0 256 15 14 1 1 0 8 1
kstatmem 264 328 0 306 2 0 2 2 0 8 0
scsiplug 72 5 0 5 2 2 0 1 0 8 0
scxspl 216 196072 0 196072 19 18 1 8 0 8 1
plimitpl 152 616 0 601 1 0 1 1 0 8 0
sigapl 424 26297 0 26257 8 2 6 8 0 8 0
futexpl 64 251483 0 251483 2 1 1 1 0 8 1
knotepl 120 241908 0 241828 44 40 4 11 0 8 0
kqueuepl 184 6692 0 6684 60 59 1 7 0 8 0
pipepl 288 2923 0 2895 78 75 3 12 0 8 0
fdescpl 432 26159 0 26138 5 1 4 4 0 8 0
filepl 120 166974 0 166754 202 191 11 19 0 8 3
lockfpl 104 4288 0 4286 6 5 1 2 0 8 0
lockfspl 48 1539 0 1537 1 0 1 1 0 8 0
sessionpl 144 53 0 37 1 0 1 1 0 8 0
pgrppl 48 95 0 79 1 0 1 1 0 8 0
ucredpl 104 14315 0 14305 1 0 1 1 0 8 0
zombiepl 144 26260 0 26257 1 0 1 1 0 8 0
processpl 1000 26297 0 26257 10 4 6 9 0 8 0
procpl 672 61441 0 61387 12 5 7 8 0 8 0
sosppl 168 146 0 146 13 13 0 1 0 8 0
sockpl 456 54385 0 54362 920 909 11 37 0 8 8
mcl64k 65536 344 0 344 53 52 1 1 0 8 1
mcl16k 16384 132 0 132 36 35 1 1 0 8 1
mcl12k 12288 354 0 354 50 49 1 1 0 8 1
mcl9k 9216 131 0 131 40 40 0 1 0 8 0
mcl8k 8192 619 0 619 58 57 1 1 0 8 1
mcl4k 4096 1711 0 1711 38 37 1 1 0 8 1
mcl2k2 2112 601 0 601 57 57 0 1 0 8 0
mcl2k 2048 96650 0 96582 145 132 13 35 0 8 2
mtagpl 96 5322 0 4491 49 22 27 30 0 8 2
mbufpl 256 375133 0 374070 384 298 86 113 0 8 3
bufpl 288 35293 0 28888 458 0 458 458 0 8 0
anonpl 24 4819193 0 4805727 269 175 94 116 0 188 0
amapchunkpl 152 436001 0 435428 105 78 27 38 0 158 1
amappl16 200 62048 0 61561 155 128 27 38 0 8 1
amappl14 184 269 0 254 2 1 1 2 0 8 0
amappl12 168 721 0 715 1 0 1 1 0 8 0
amappl11 160 40 0 30 1 0 1 1 0 8 0
amappl10 152 53 0 44 1 0 1 1 0 8 0
amappl9 144 1014 0 1011 1 0 1 1 0 8 0
amappl8 136 689 0 502 8 1 7 7 0 8 0
amappl7 128 73 0 54 1 0 1 1 0 8 0
amappl6 120 587 0 563 2 1 1 2 0 8 0
amappl5 112 242 0 234 1 0 1 1 0 8 0
amappl4 104 2441 0 2406 1 0 1 1 0 8 0
amappl3 96 71597 0 71555 2 0 2 2 0 8 0
amappl2 88 27054 0 26980 3 1 2 3 0 8 0
amappl1 80 566622 0 566014 25 9 16 21 0 8 0
amappl 88 157332 0 157150 10 4 6 6 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 27 0 1 1 0 1 1 0 8 0
uaddrrnd 24 26239 0 26165 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 26239 0 26165 1 0 1 1 0 8 0
vmmpekpl 168 161001 0 160941 3 0 3 3 0 8 0
vmmpepl 168 2315598 0 2313212 340 210 130 156 0 357 1
vmsppl 272 26238 0 26164 9 3 6 6 0 8 0
rwobjpl 24 584488 0 576877 52 5 47 48 0 8 0
pdppl 4096 52484 0 52381 1057 940 117 117 0 8 14
pvpl 32 9980714 0 9962373 541 368 173 253 0 265 0
pmappl 216 26238 0 26164 5 0 5 5 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 3012 0 1965 30 0 30 30 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8259516e) at panic+0x161 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd806a039d88,fffffd8005e34000,7fbfbffff000,7f7fffe00000,7f7fffef4000,0,4f7641876f0d6f63) at pmap_remove_ptes+0x32e
pmap_do_remove(fffffd806a039d88,7f7fff7f4000,7f7fffef4000,0) at pmap_do_remove+0x438 sys/arch/amd64/amd64/pmap.c:1864
uvm_unmap_kill_entry_withlock(fffffd8066f25ee8,fffffd806b865310,0) at uvm_unmap_kill_entry_withlock+0x1a2 sys/uvm/uvm_map.c:1928
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 sys/uvm/uvm_map.c:2578
uvmspace_free(fffffd8066f25ee8) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3504
reaper(ffff8000ffff9ce8) at reaper+0x15d sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8259516e) at panic+0x161 sys/kern/subr_prf.c:198
pmap_remove_ptes(fffffd806a039d88,fffffd8005e34000,7fbfbffff000,7f7fffe00000,7f7fffef4000,0,4f7641876f0d6f63) at pmap_remove_ptes+0x32e
pmap_do_remove(fffffd806a039d88,7f7fff7f4000,7f7fffef4000,0) at pmap_do_remove+0x438 sys/arch/amd64/amd64/pmap.c:1864
uvm_unmap_kill_entry_withlock(fffffd8066f25ee8,fffffd806b865310,0) at uvm_unmap_kill_entry_withlock+0x1a2 sys/uvm/uvm_map.c:1928
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8066f25ee8) at uvm_map_teardown+0x167 sys/uvm/uvm_map.c:2578
uvmspace_free(fffffd8066f25ee8) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3504
reaper(ffff8000ffff9ce8) at reaper+0x15d sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8