panic: pool_do_get: pkpcb: page empty
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*213606 22713 0 0 0x4000000 0 syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff833b8dff) at panic+0x1cf sys/kern/subr_prf.c:198
pool_do_get(ffffffff83a3e160,9,ffff80003c9211a8) at pool_do_get+0x537 sys/kern/subr_pool.c:732
pool_get(ffffffff83a3e160,9) at pool_get+0x11a sys/kern/subr_pool.c:-1
pfkeyv2_attach(ffff80000166af68,2,1) at pfkeyv2_attach+0xe9 sys/net/pfkeyv2.c:-1
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f pru_attach sys/sys/protosw.h:275 [inline]
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f sys/kern/uipc_socket.c:220
sys_socket(ffff80003c913258,ffff80003c921410,ffff80003c921360) at sys_socket+0x124 sys/kern/uipc_syscalls.c:102
syscall(ffff80003c921410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c921410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcbffd14b730, count: 6
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: pool_do_get: pkpcb: page empty
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff833b8dff) at panic+0x1cf sys/kern/subr_prf.c:198
pool_do_get(ffffffff83a3e160,9,ffff80003c9211a8) at pool_do_get+0x537 sys/kern/subr_pool.c:732
pool_get(ffffffff83a3e160,9) at pool_get+0x11a sys/kern/subr_pool.c:-1
pfkeyv2_attach(ffff80000166af68,2,1) at pfkeyv2_attach+0xe9 sys/net/pfkeyv2.c:-1
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f pru_attach sys/sys/protosw.h:275 [inline]
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f sys/kern/uipc_socket.c:220
sys_socket(ffff80003c913258,ffff80003c921410,ffff80003c921360) at sys_socket+0x124 sys/kern/uipc_syscalls.c:102
syscall(ffff80003c921410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c921410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcbffd14b730, count: -9
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80003c921020
rbx 0
rdx 0
rcx 0
rax 0xffff80003c913258
r8 0x101010101010101
r9 0x8080808080808080
r10 0xcc3be0682925ac39
r11 0x420feccdf62135d9
r12 0
r13 0
r14 0
r15 0x1
rip 0xffffffff82289575 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80003c921010
ss 0
db_enter+0x25: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor) tid=213606 pid=22713 tcnt=2 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=83, usrpri=83, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003c915260,0xffffffff8399f700
process=0xffff8000ffff4020 user=0xffff80003c91c000, vmspace=0xfffffd8074047748
estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
22713 62288 98264 0 2 0 syz-executor
*22713 213606 98264 0 7 0x4000000 syz-executor
42166 303558 10013 0 2 0 syz-executor
42166 32061 10013 0 3 0x4000080 fsleep syz-executor
29887 181963 94417 0 2 0 syz-executor
29887 309395 94417 0 3 0x4000080 fsleep syz-executor
29887 257052 94417 0 3 0x4000080 fsleep syz-executor
84877 471833 54785 0 3 0x80 nanoslp syz-executor
84877 355855 54785 0 3 0x4000080 bell syz-executor
84877 501398 54785 0 3 0x4000080 pipewr syz-executor
84877 129358 54785 0 3 0x4000080 fsleep syz-executor
84334 512893 92418 0 3 0x80 nanoslp syz-executor
84334 293282 92418 0 3 0x4000080 netacc syz-executor
84334 438310 92418 0 3 0x4000080 fsleep syz-executor
84334 326451 92418 0 3 0x4000080 fsleep syz-executor
36634 459096 24498 0 3 0x80 nanoslp syz-executor
36634 484778 24498 0 3 0x4000080 wsevent_read syz-executor
36634 44568 24498 0 3 0x4000080 fsleep syz-executor
36634 53990 24498 0 3 0x4000080 fsleep syz-executor
19245 359889 49805 0 3 0x80 nanoslp syz-executor
19245 359325 49805 0 3 0x4000080 ttyout syz-executor
19245 305787 49805 0 3 0x4000080 fsleep syz-executor
55134 322767 36713 0 3 0x3000 suspend syz-executor
55134 385264 36713 0 2 0x4081000 syz-executor
55134 87407 36713 0 3 0x4081000 inode syz-executor
55134 118275 36713 0 3 0x4081000 inode syz-executor
56337 166371 1 0 3 0x100083 ttyin getty
94417 270848 36313 0 3 0x82 nanoslp syz-executor
16675 83972 0 0 3 0x14280 nfsidl nfsio
58293 252162 0 0 3 0x14280 nfsidl nfsio
26005 51109 0 0 3 0x14280 nfsidl nfsio
16087 412397 0 0 3 0x14280 nfsidl nfsio
14223 216107 0 0 3 0x14280 nfsidl nfsio
77629 151459 0 0 3 0x14280 nfsidl nfsio
6254 412015 0 0 3 0x14280 nfsidl nfsio
38098 355993 0 0 3 0x14280 nfsidl nfsio
90811 181412 0 0 3 0x14280 nfsidl nfsio
85544 20863 0 0 3 0x14280 nfsidl nfsio
67909 118769 0 0 3 0x14280 nfsidl nfsio
71301 463226 0 0 3 0x14280 nfsidl nfsio
11521 309643 0 0 3 0x14280 nfsidl nfsio
92711 218093 0 0 3 0x14280 nfsidl nfsio
27910 506138 0 0 3 0x14280 nfsidl nfsio
82155 172433 0 0 3 0x14280 nfsidl nfsio
78682 197865 0 0 3 0x14280 nfsidl nfsio
78265 492193 0 0 3 0x14280 nfsidl nfsio
59622 411835 0 0 3 0x14280 nfsidl nfsio
86488 427160 0 0 3 0x14280 nfsidl nfsio
49805 237526 36313 0 3 0x82 nanoslp syz-executor
54785 13613 36313 0 3 0x82 nanoslp syz-executor
92418 157282 36313 0 3 0x82 nanoslp syz-executor
98264 128278 36313 0 3 0x82 nanoslp syz-executor
36713 387716 36313 0 3 0x82 wait syz-executor
24498 84485 36313 0 3 0x82 nanoslp syz-executor
10013 299264 36313 0 3 0x82 nanoslp syz-executor
36313 3979 461 0 3 0x82 kqread syz-executor
461 420249 54924 0 3 0x10008a sigsusp ksh
54924 118408 69871 0 3 0x98 kqread sshd-session
69871 193280 23264 0 3 0x92 kqread sshd-session
23264 132713 1 0 3 0x88 kqread sshd
78200 461337 57735 73 3 0x1100090 kqread syslogd
57735 399458 1 0 3 0x100082 sbwait syslogd
790 405843 1 0 3 0x100080 kqread resolvd
45514 359095 71109 77 3 0x100092 kqread dhcpleased
17258 178453 71109 77 3 0x100092 kqread dhcpleased
71109 441266 1 0 3 0x80 kqread dhcpleased
72132 96703 0 0 3 0x14200 bored smr
5770 518367 0 0 2 0x14200 zerothread
8857 172685 0 0 3 0x14200 aiodoned aiodoned
10440 439938 0 0 3 0x14200 syncer update
78982 241810 0 0 3 0x14200 cleaner cleaner
38639 262240 0 0 3 0x14200 reaper reaper
97516 8350 0 0 3 0x14200 pgdaemon pagedaemon
30103 26148 0 0 3 0x14200 bored viomb
27974 436039 0 0 3 0x40014200 acpi0 acpi0
68597 379854 0 0 3 0x14200 bored softnet0
78515 268968 0 0 3 0x14200 bored systqmp
79901 423142 0 0 3 0x14200 bored systq
9442 466867 0 0 3 0x40014200 tmoslp softclock
54610 291633 0 0 3 0x40014200 idle0
1 412654 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 11054 12312K 12627K 166960K 13247 0
pcb 18 14K 16K 166960K 230 0
rtable 219 8K 9K 166960K 523 0
pf 31 13K 15K 166960K 93 0
ifaddr 37 6K 7K 166960K 80 0
ifgroup 43 1K 2K 166960K 118 0
sysctl 3 1K 9K 166960K 11 0
counters 32 17K 18K 166960K 67 0
ioctlops 0 0K 4K 166960K 154 0
iov 0 0K 28K 166960K 44 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1374 86K 87K 166960K 2177 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 9K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 103 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 18 65K 240K 166960K 863 0
sigio 0 0K 0K 166960K 11 0
proc 60 59K 91K 166960K 597 0
subproc 72 4K 4K 166960K 81 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 76 0
in_multi 77 5K 7K 166960K 138 0
ether_multi 1 0K 0K 166960K 10 0
mrt 2 0K 0K 166960K 23 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 91 413K 413K 166960K 91 0
exec 0 0K 1K 166960K 442 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 248 169K 169K 166960K 9489 0
UVM aobj 97 14K 14K 166960K 103 0
pinsyscall 39 78K 93K 166960K 1974 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 55 0
NDP 10 0K 2K 166960K 53 0
temp 79 9076K 9148K 166960K 36783 0
kqueue 14 22K 30K 166960K 139 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 91 0 88 1 0 1 1 0 8 0
rtentry 136 149 0 63 4 0 4 4 0 8 0
unpcb 144 524 0 508 4 1 3 3 0 8 2
syncache 336 5 0 5 1 1 0 1 0 8 0
tcpcb 736 302 0 295 10 3 7 7 0 8 6
arp 96 26 0 8 1 0 1 1 0 8 0
ipq 40 3 0 2 2 1 1 1 0 8 0
ipqe 40 6 0 5 2 1 1 1 0 8 0
inpcb 328 739 0 722 12 5 7 7 0 8 5
ip6q 72 2 0 0 1 0 1 1 0 8 0
ip6af 40 2 0 0 1 0 1 1 0 8 0
nd6 112 30 0 10 1 0 1 1 0 8 0
pkpcb 40 66 0 66 2 1 1 1 0 8 1
pkpcb: pool(0xffffffff83a3e160:pkpcb): page inconsistency: page 0x0; at page head addr 0xfffffd806cbd7f90 (p 0xfffffd806cbd7000)
kcovpl 48 9 0 1 1 0 1 1 0 8 0
mppekey 1024 1 0 1 1 1 0 1 0 8 0
ppxss 1072 26 0 26 2 1 1 1 0 8 1
pppxif 1384 4 0 4 2 1 1 1 0 8 1
pfstscr 40 2 0 2 2 1 1 1 0 8 1
pfrktable 1344 3 0 3 2 1 1 1 0 8 1
pfstitem 24 5 0 0 1 0 1 1 0 8 0
pfstkey 128 9 0 5 1 0 1 1 0 8 0
pfstate 384 5 0 2 1 0 1 1 0 8 0
pfrule 1360 5 0 5 2 1 1 1 0 8 1
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 577 0 213 29 4 25 29 0 8 2
art_table 40 580 0 213 5 0 5 5 0 8 0
art_node 32 147 0 70 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 1 2 1 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 101 0 91 1 0 1 1 0 8 0
shmpl 112 93 0 4 3 0 3 3 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 2991 0 1544 92 0 92 92 0 8 0
ffsino 256 2991 0 1544 92 0 92 92 0 8 0
nchpl 144 4169 0 2472 64 0 64 64 0 8 0
rtmask 32 4 0 4 2 1 1 1 0 8 1
vnodes 216 3551 0 0 198 0 198 198 0 8 0
namei 1024 13816 0 13816 3 2 1 2 0 8 1
vcpupl 3904 7 0 2 1 0 1 1 0 8 0
vmpool 808 7 0 2 1 0 1 1 0 8 0
kstatmem 264 68 0 48 2 0 2 2 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 4 0 4 2 1 1 1 0 8 1
scxspl 216 20339 0 20339 8 7 1 8 1 8 1
plimitpl 152 181 0 161 1 0 1 1 0 8 0
sigapl 424 1157 0 1094 9 1 8 8 0 8 0
knotepl 120 39816 0 39766 11 1 10 10 0 8 8
kqueuepl 184 262 0 251 3 2 1 3 0 8 0
pipepl 304 184 0 156 3 0 3 3 0 8 0
fdescpl 448 1124 0 1094 5 1 4 5 0 8 0
filepl 120 6530 0 6301 11 2 9 11 0 8 1
lockfpl 104 311 0 309 1 0 1 1 0 8 0
lockfspl 48 120 0 118 1 0 1 1 0 8 0
sessionpl 144 25 0 17 1 0 1 1 0 8 0
pgrppl 48 44 0 28 1 0 1 1 0 8 0
ucredpl 104 1366 0 1354 1 0 1 1 0 8 0
zombiepl 144 1370 0 1369 1 0 1 1 0 8 0
processpl 1152 1157 0 1094 5 0 5 5 0 8 0
procpl 664 2354 0 2273 8 0 8 8 0 8 1
sosppl 176 4 0 4 2 1 1 1 0 8 1
sockpl 552 1436 0 1399 12 4 8 8 0 8 4
mcl64k 65536 62 0 61 1 0 1 1 0 8 0
mcl12k 12288 1 0 1 1 1 0 1 0 8 0
mcl8k 8192 12 0 12 2 1 1 1 0 8 1
mcl4k 4096 3444 0 3390 15 7 8 15 0 8 1
mcl2k 2048 808 0 797 3 0 3 3 0 8 1
mtagpl 96 87 0 9 2 0 2 2 0 8 0
mbufpl 256 13706 0 13451 18 0 18 18 0 8 0
bufpl 280 8677 0 2459 445 0 445 445 0 8 0
anonpl 24 181653 0 176243 58 4 54 58 0 187 15
amapchunkpl 152 30801 0 30071 39 4 35 35 0 158 6
amappl16 200 3789 0 3631 22 7 15 21 0 8 6
amappl15 192 9 0 9 1 1 0 1 0 8 0
amappl14 184 424 0 423 1 0 1 1 0 8 0
amappl13 176 137 0 127 1 0 1 1 0 8 0
amappl12 168 1373 0 1343 2 0 2 2 0 8 0
amappl11 160 5 0 5 1 1 0 1 0 8 0
amappl10 152 59 0 49 1 0 1 1 0 8 0
amappl9 144 260 0 259 1 0 1 1 0 8 0
amappl8 136 105 0 103 1 0 1 1 0 8 0
amappl7 128 82 0 80 1 0 1 1 0 8 0
amappl6 120 259 0 249 1 0 1 1 0 8 0
amappl5 112 177 0 170 1 0 1 1 0 8 0
amappl4 104 477 0 443 2 0 2 2 0 8 0
amappl3 96 5357 0 5258 3 0 3 3 0 8 0
amappl2 88 1222 0 1157 2 0 2 2 0 8 0
amappl1 80 12506 0 11968 13 0 13 13 0 8 0
amappl 88 8663 0 8479 5 0 5 5 0 92 0
uvmvnodes 80 118 0 0 3 0 3 3 0 8 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 2 0 1 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 7 0 7 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 72 102 0 6 2 0 2 2 0 8 0
uaddrrnd 24 1124 0 1094 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1124 0 1094 1 0 1 1 0 8 0
vmmpekpl 168 10606 0 10571 2 0 2 2 0 8 0
vmmpepl 168 78482 0 76486 97 4 93 97 0 357 6
vmsppl 368 1123 0 1094 4 1 3 4 0 8 0
rwobjpl 40 23351 0 22139 14 0 14 14 0 8 0
pdppl 4096 2268 0 2197 104 33 71 78 0 8 0
pvpl 32 504139 0 492693 143 11 132 143 0 265 26
pmappl 216 1130 0 1096 2 0 2 2 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 392 0 57 10 0 10 10 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(ffffffff833b8dff) at panic+0x1cf sys/kern/subr_prf.c:198
pool_do_get(ffffffff83a3e160,9,ffff80003c9211a8) at pool_do_get+0x537 sys/kern/subr_pool.c:732
pool_get(ffffffff83a3e160,9) at pool_get+0x11a sys/kern/subr_pool.c:-1
pfkeyv2_attach(ffff80000166af68,2,1) at pfkeyv2_attach+0xe9 sys/net/pfkeyv2.c:-1
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f pru_attach sys/sys/protosw.h:275 [inline]
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f sys/kern/uipc_socket.c:220
sys_socket(ffff80003c913258,ffff80003c921410,ffff80003c921360) at sys_socket+0x124 sys/kern/uipc_syscalls.c:102
syscall(ffff80003c921410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c921410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcbffd14b730, count: -9
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff833b8dff) at panic+0x1cf sys/kern/subr_prf.c:198
pool_do_get(ffffffff83a3e160,9,ffff80003c9211a8) at pool_do_get+0x537 sys/kern/subr_pool.c:732
pool_get(ffffffff83a3e160,9) at pool_get+0x11a sys/kern/subr_pool.c:-1
pfkeyv2_attach(ffff80000166af68,2,1) at pfkeyv2_attach+0xe9 sys/net/pfkeyv2.c:-1
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f pru_attach sys/sys/protosw.h:275 [inline]
socreate(1e,ffff80003c9212d0,3,2) at socreate+0x22f sys/kern/uipc_socket.c:220
sys_socket(ffff80003c913258,ffff80003c921410,ffff80003c921360) at sys_socket+0x124 sys/kern/uipc_syscalls.c:102
syscall(ffff80003c921410) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c921410) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xcbffd14b730, count: -9