panic: pmap_remove_ptes: managed page without PG_PVLIST: va 0x110c24a000, opte 0x6d4a1001
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8343f84d) at panic+0x1cf sys/kern/subr_prf.c:198
pmap_remove_pte(fffffd80750c21b8,fffffd80071c7d80,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd80750c21b8,110c230000,110e230000,0) at pmap_do_remove+0x53a sys/arch/amd64/amd64/pmap.c:1920
uvm_unmap_kill_entry_withlock(fffffd806ce8ee78,fffffd806b81e1c0,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff80003c92c2d0,0,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259
sys_exit(ffff80003c92c2d0,ffff80003c9c1340,ffff80003c9c1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c9c1340) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9c1340) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7147bf57b970, count: 5
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: managed page without PG_PVLIST: va 0x110c24a000, opte 0x6d4a1001
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8343f84d) at panic+0x1cf sys/kern/subr_prf.c:198
pmap_remove_pte(fffffd80750c21b8,fffffd80071c7d80,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd80750c21b8,110c230000,110e230000,0) at pmap_do_remove+0x53a sys/arch/amd64/amd64/pmap.c:1920
uvm_unmap_kill_entry_withlock(fffffd806ce8ee78,fffffd806b81e1c0,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff80003c92c2d0,0,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259
sys_exit(ffff80003c92c2d0,ffff80003c9c1340,ffff80003c9c1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c9c1340) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9c1340) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7147bf57b970, count: -10
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80003c9c0f00
rbx 0xfffffd80071c7d80
rdx 0
rcx 0
rax 0xffff80003c92c2d0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x604e89fa8b338262
r11 0x96e7ef59cd3ba6ca
r12 0
r13 0x7f8008861250
r14 0
r15 0x1
rip 0xffffffff81718195 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80003c9c0ef0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor) tid=348743 pid=33762 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=80, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80003c92c2d0 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff80003c92d260,0xffff80003a4eba28
process=0xffff8000ffff8918 user=0xffff80003c9bc000, vmspace=0xfffffd806ce8ee78
estcpu=30, cpticks=9, pctcpu=0.8, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
30174 486683 25739 0 2 0 syz-executor
30174 427378 25739 0 3 0x4000080 fsleep syz-executor
88465 105048 70261 0 2 0 syz-executor
88465 338405 70261 0 3 0x4000080 fsleep syz-executor
76260 171082 86217 0 2 0 syz-executor
76260 336800 86217 0 3 0x4000080 fsleep syz-executor
76260 195588 86217 0 2 0x4000000 syz-executor
52039 259006 60952 0 2 0 syz-executor
52039 468512 60952 0 3 0x4000080 fifor syz-executor
52039 92013 60952 0 3 0x4000080 fsleep syz-executor
39896 114827 81151 0 3 0x80 nanoslp syz-executor
39896 236971 81151 0 3 0x4000080 ttyout syz-executor
39896 389988 81151 0 3 0x4000080 ttyout syz-executor
39896 256856 81151 0 3 0x4000080 fsleep syz-executor
5755 308951 0 0 3 0x14200 acct acct
36685 229071 0 0 3 0x14280 nfsidl nfsio
14630 512827 0 0 3 0x14280 nfsidl nfsio
20890 482529 0 0 3 0x14280 nfsidl nfsio
75675 161996 0 0 3 0x14280 nfsidl nfsio
81516 256392 0 0 3 0x14280 nfsidl nfsio
39668 372260 0 0 3 0x14280 nfsidl nfsio
27132 217011 0 0 3 0x14280 nfsidl nfsio
12384 50731 0 0 3 0x14280 nfsidl nfsio
98421 280928 0 0 3 0x14280 nfsidl nfsio
44008 225668 0 0 3 0x14280 nfsidl nfsio
40695 59890 0 0 3 0x14280 nfsidl nfsio
45177 76829 0 0 3 0x14280 nfsidl nfsio
62789 437777 0 0 3 0x14280 nfsidl nfsio
32428 267853 0 0 3 0x14280 nfsidl nfsio
95211 261053 0 0 3 0x14280 nfsidl nfsio
93126 246784 0 0 3 0x14280 nfsidl nfsio
65100 424023 0 0 3 0x14280 nfsidl nfsio
90146 492025 0 0 3 0x14280 nfsidl nfsio
2420 494490 0 0 3 0x14280 nfsidl nfsio
65685 426518 0 0 3 0x14280 nfsidl nfsio
70261 280828 3334 0 3 0x82 nanoslp syz-executor
81151 280119 3334 0 3 0x82 nanoslp syz-executor
96150 485780 3334 0 3 0x82 nanoslp syz-executor
98674 213494 3334 0 3 0x82 nanoslp syz-executor
62584 195551 3334 0 3 0x82 nanoslp syz-executor
60952 473667 3334 0 3 0x82 nanoslp syz-executor
25739 347422 3334 0 3 0x82 nanoslp syz-executor
86217 51043 3334 0 3 0x82 nanoslp syz-executor
3334 406217 53728 0 3 0x82 kqread syz-executor
53728 304124 65893 0 3 0x10008a sigsusp ksh
65893 201803 89602 0 3 0x98 kqread sshd-session
89602 18749 83060 0 3 0x92 kqread sshd-session
67233 266664 1 0 3 0x100083 ttyin getty
83060 401627 1 0 3 0x88 kqread sshd
61338 373051 38300 73 3 0x1100090 kqread syslogd
38300 208902 1 0 3 0x100082 sbwait syslogd
66903 134889 1 0 3 0x100080 kqread resolvd
9662 314672 5637 77 3 0x100092 kqread dhcpleased
2476 133519 5637 77 3 0x100092 kqread dhcpleased
5637 352154 1 0 3 0x80 kqread dhcpleased
89826 199083 0 0 3 0x14200 bored smr
16551 100807 0 0 2 0x14200 zerothread
12149 281365 0 0 3 0x14200 aiodoned aiodoned
68175 521693 0 0 3 0x14200 syncer update
96023 335638 0 0 3 0x14200 cleaner cleaner
11842 143184 0 0 3 0x14200 reaper reaper
6747 264220 0 0 3 0x14200 pgdaemon pagedaemon
68099 339984 0 0 3 0x14200 bored viomb
58283 217425 0 0 3 0x40014200 acpi0 acpi0
81862 16517 0 0 3 0x14200 bored softnet0
49815 287819 0 0 3 0x14200 bored systqmp
98928 348873 0 0 3 0x14200 bored systq
6222 332964 0 0 3 0x40014200 tmoslp softclock
52280 135970 0 0 3 0x40014200 idle0
1 145044 0 0 3 0x82 wait init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11058 12131K 13303K 166960K 14291 0
pcb 17 16K 17K 166960K 278 0
rtable 218 18K 20K 166960K 547 0
pf 34 13K 18K 166960K 171 0
ifaddr 35 6K 8K 166960K 100 0
ifgroup 47 1K 2K 166960K 166 0
sysctl 4 1K 9K 166960K 18 0
counters 33 17K 18K 166960K 163 0
ioctlops 0 0K 4K 166960K 360 0
iov 0 0K 24K 166960K 96 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1475 93K 93K 166960K 2615 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 29 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 73 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 240K 166960K 1212 0
sigio 0 0K 0K 166960K 153 0
proc 62 59K 83K 166960K 567 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 212 0
in_multi 76 5K 7K 166960K 154 0
ether_multi 1 0K 0K 166960K 16 0
mrt 2 0K 0K 166960K 30 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 121 546K 546K 166960K 121 0
exec 0 0K 1K 166960K 538 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 234 155K 169K 166960K 12199 0
UVM aobj 133 8K 8K 166960K 134 0
pinsyscall 38 76K 92K 166960K 2290 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 1K 166960K 50 0
NDP 11 0K 1K 166960K 67 0
temp 81 9076K 9182K 166960K 39112 0
kqueue 13 20K 30K 166960K 220 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 120 165 0 161 1 0 1 1 0 8 0
rtentry 136 142 0 62 4 0 4 4 0 8 0
unpcb 144 1061 0 1044 9 3 6 6 0 8 5
syncache 336 7 0 7 2 1 1 1 0 8 1
tcpcb 736 480 0 476 10 6 4 7 0 8 3
arp 96 20 0 5 1 0 1 1 0 8 0
ipq 40 1 0 0 1 0 1 1 0 8 0
ipqe 40 1 0 0 1 0 1 1 0 8 0
inpcb 328 1453 0 1446 12 5 7 7 0 8 6
ip6q 72 5 0 2 1 0 1 1 0 8 0
ip6af 40 7 0 4 1 0 1 1 0 8 0
nd6 112 29 0 10 1 0 1 1 0 8 0
pkpcb 40 3 0 3 2 1 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
mppekey 1024 2 0 2 2 1 1 1 0 8 1
ppxss 1072 117 0 117 2 1 1 1 0 8 1
pppxif 1416 8 0 8 2 1 1 1 0 8 1
pfstscr 40 1 0 1 1 1 0 1 0 8 0
pfrktable 1344 16 0 15 2 1 1 1 0 8 0
pfanchor 1288 3 0 3 1 0 1 1 0 8 1
pftag 88 5 0 3 1 0 1 1 0 8 0
pfqueue 320 2 0 1 1 0 1 1 0 8 0
pfstitem 24 2 0 0 1 0 1 1 0 8 0
pfstkey 128 3 0 1 1 0 1 1 0 8 0
pfstate 384 2 0 1 1 0 1 1 0 8 0
pfrule 1360 11 0 10 1 0 1 1 0 8 0
rttmr 136 2 0 2 2 1 1 1 0 8 1
art_heap8 4096 4 0 0 4 0 4 4 0 8 0
art_heap4 256 617 0 286 31 1 30 30 0 8 4
art_table 40 621 0 286 5 0 5 5 0 8 0
art_node 32 142 0 72 1 0 1 1 0 8 0
sysvmsgpl 40 40 0 37 1 0 1 1 0 8 0
semupl 112 2 0 2 2 1 1 1 0 8 1
semapl 112 67 0 57 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 3670 0 2222 92 0 92 92 0 8 0
ffsino 256 3670 0 2222 92 0 92 92 0 8 0
nchpl 144 5466 0 3775 64 0 64 64 0 8 0
rtmask 32 11 0 11 2 1 1 1 0 8 1
vnodes 216 4558 0 0 254 0 254 254 0 8 0
namei 1024 19676 0 19676 3 2 1 2 0 8 1
vcpupl 3904 3 0 1 1 0 1 1 0 8 0
vmpool 808 3 0 1 1 0 1 1 0 8 0
pfiaddrpl 120 3 0 3 1 0 1 1 0 8 1
kstatmem 264 102 0 80 4 1 3 3 0 8 1
acpiwqpl 32 2 0 2 1 0 1 1 1 8 1
scsiplug 72 2 0 2 2 1 1 1 0 8 1
scxspl 216 18343 0 18343 10 2 8 8 1 8 8
plimitpl 152 731 0 711 1 0 1 1 0 8 0
sigapl 424 1514 0 1450 9 1 8 8 0 8 0
knotepl 120 68431 0 68384 29 19 10 17 0 8 8
kqueuepl 184 430 0 421 6 0 6 6 0 8 5
pipepl 304 531 0 502 13 5 8 8 0 8 5
fdescpl 448 1478 0 1449 5 1 4 5 0 8 0
filepl 120 11185 0 10962 18 4 14 14 0 8 5
lockfpl 104 829 0 827 4 0 4 4 0 8 3
lockfspl 48 306 0 304 1 0 1 1 0 8 0
sessionpl 144 22 0 14 1 0 1 1 0 8 0
pgrppl 48 44 0 28 1 0 1 1 0 8 0
ucredpl 104 2159 0 2147 1 0 1 1 0 8 0
zombiepl 144 1453 0 1450 1 0 1 1 0 8 0
processpl 1152 1514 0 1450 5 0 5 5 0 8 0
procpl 664 3051 0 2978 8 1 7 7 0 8 0
sosppl 176 8 0 8 2 1 1 1 0 8 1
sockpl 552 2725 0 2696 18 8 10 13 0 8 7
mcl64k 65536 92 0 92 2 1 1 1 0 8 1
mcl16k 16384 48 0 48 2 1 1 1 0 8 1
mcl12k 12288 16 0 16 2 1 1 1 0 8 1
mcl9k 9216 2 0 2 1 0 1 1 0 8 1
mcl8k 8192 126 0 126 2 1 1 1 0 8 1
mcl4k 4096 4069 0 4015 15 6 9 14 0 8 2
mcl2k2 2112 2 0 2 1 1 0 1 0 8 0
mcl2k 2048 1186 0 1183 3 1 2 2 0 8 1
mtagpl 96 95 0 18 3 0 3 3 0 8 0
mbufpl 256 17600 0 17395 20 5 15 17 0 8 0
bufpl 280 5580 0 111 391 0 391 391 0 8 0
anonpl 24 211037 0 207571 72 22 50 50 0 187 21
amapchunkpl 152 40949 0 40436 40 6 34 34 0 158 13
amappl16 200 4069 0 4033 34 23 11 17 0 8 5
amappl15 192 6 0 6 1 1 0 1 0 8 0
amappl14 184 427 0 426 1 0 1 1 0 8 0
amappl13 176 127 0 117 1 0 1 1 0 8 0
amappl12 168 1715 0 1686 2 0 2 2 0 8 0
amappl11 160 1 0 1 1 1 0 1 0 8 0
amappl10 152 68 0 58 1 0 1 1 0 8 0
amappl9 144 258 0 258 1 1 0 1 0 8 0
amappl8 136 120 0 118 1 0 1 1 0 8 0
amappl7 128 145 0 133 1 0 1 1 0 8 0
amappl6 120 152 0 151 1 0 1 1 0 8 0
amappl5 112 94 0 86 1 0 1 1 0 8 0
amappl4 104 299 0 281 1 0 1 1 0 8 0
amappl3 96 8321 0 8205 4 0 4 4 0 8 0
amappl2 88 520 0 467 2 0 2 2 0 8 0
amappl1 80 13727 0 13166 15 2 13 15 0 8 0
amappl 88 11325 0 11153 5 0 5 5 0 92 0
uvmvnodes 80 145 0 0 3 0 3 3 0 8 0
dma65536 65536 1 0 1 1 0 1 1 0 8 1
dma4096 4096 2 0 2 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 8 0 8 2 1 1 1 0 8 1
dma16 16 20 0 19 1 0 1 1 0 8 0
aobjpl 72 133 0 1 3 0 3 3 0 8 0
uaddrrnd 24 1478 0 1448 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1478 0 1448 1 0 1 1 0 8 0
vmmpekpl 168 13677 0 13637 2 0 2 2 0 8 0
vmmpepl 168 96834 0 94973 105 11 94 94 0 357 10
vmsppl 368 1477 0 1448 4 1 3 4 0 8 0
rwobjpl 40 26362 0 25213 17 2 15 15 0 8 2
pdppl 4096 2968 0 2900 98 29 69 78 0 8 1
pvpl 32 663970 0 651112 147 23 124 124 0 265 18
pmappl 216 1480 0 1449 2 0 2 2 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 396 0 59 11 0 11 11 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8343f84d) at panic+0x1cf sys/kern/subr_prf.c:198
pmap_remove_pte(fffffd80750c21b8,fffffd80071c7d80,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd80750c21b8,110c230000,110e230000,0) at pmap_do_remove+0x53a sys/arch/amd64/amd64/pmap.c:1920
uvm_unmap_kill_entry_withlock(fffffd806ce8ee78,fffffd806b81e1c0,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff80003c92c2d0,0,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259
sys_exit(ffff80003c92c2d0,ffff80003c9c1340,ffff80003c9c1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c9c1340) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9c1340) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7147bf57b970, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8343f84d) at panic+0x1cf sys/kern/subr_prf.c:198
pmap_remove_pte(fffffd80750c21b8,fffffd80071c7d80,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd80750c21b8,110c230000,110e230000,0) at pmap_do_remove+0x53a sys/arch/amd64/amd64/pmap.c:1920
uvm_unmap_kill_entry_withlock(fffffd806ce8ee78,fffffd806b81e1c0,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd806ce8ee78) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff80003c92c2d0,0,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259
sys_exit(ffff80003c92c2d0,ffff80003c9c1340,ffff80003c9c1290) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c9c1340) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9c1340) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7147bf57b970, count: -10