panic: pr_find_pagehead: pdppl: incorrect page
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syzbot
Nov 30, 2022, 7:32:40 PM11/30/22
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: dc8195713cae midicat.c: add missing CVS tag; ok millert@
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1121346b880000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=ef1f11e2e626f47de655
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d5eaaf0ac4d3/disk-dc819571.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/0f306d064181/bsd-dc819571.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/17dd4d95a4d7/kernel-dc819571.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ef1f11...@syzkaller.appspotmail.com
panic: pr_find_pagehead: pdppl: incorrect page
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
290162 55728 0 0 0 0 syz-executor.6
*157225 97064 0 0x14000 0x200 1K reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: pr_find_pagehead: pdppl: incorrect page
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff8000212395c0
rbx 0xffff800020dd9b8f
rdx 0
rcx 0
rax 0xffff800021233508
r8 0x101010101010101
r9 0x8080808080808080
r10 0x28d8584a2612f61f
r11 0xa81f51954bc52c6e
r12 0xffff800020dd9990
r13 0
r14 0
r15 0x1
rip 0xffffffff81d642c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000212395b0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (reaper) pid=157225 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=4, usrpri=85, nice=20
forw=0xffffffffffffffff, list=0xffff800021233a48,0xffff800021232fd8
process=0xffff8000fffff670 user=0xffff800021234000, vmspace=0xffffffff82bb1a08
estcpu=35, cpticks=7, pctcpu=4.32
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
59210 424323 59326 0 2 0 syz-executor.1
59210 239509 59326 0 3 0x4000080 fsleep syz-executor.1
55728 290162 56776 0 7 0 syz-executor.6
55728 354409 56776 0 2 0x4000000 syz-executor.6
2958 243769 16399 0 2 0 syz-executor.5
2958 372094 16399 0 3 0x4000080 fsleep syz-executor.5
41787 55504 54783 0 2 0 syz-executor.3
41787 243923 54783 0 3 0x4000080 fsleep syz-executor.3
20078 96383 72792 0 2 0 syz-executor.0
20078 276357 72792 0 3 0x4000080 fsleep syz-executor.0
20078 53800 72792 0 3 0x4000080 fsleep syz-executor.0
50748 227658 23460 0 2 0 syz-executor.7
50748 161839 23460 0 3 0x4000080 fsleep syz-executor.7
51414 131624 95457 0 3 0x82 nanoslp syz-executor.2
16399 437907 95457 0 3 0x82 nanoslp syz-executor.5
36035 71519 95457 0 3 0x82 nanoslp syz-executor.4
56776 416755 95457 0 3 0x82 nanoslp syz-executor.6
68658 444122 0 0 3 0x14200 acct acct
54783 56338 95457 0 3 0x82 nanoslp syz-executor.3
72792 414022 95457 0 3 0x82 nanoslp syz-executor.0
59326 225837 95457 0 3 0x82 nanoslp syz-executor.1
13088 123361 1 0 3 0x100083 ttyin getty
23460 142992 95457 0 3 0x82 nanoslp syz-executor.7
79190 354414 0 0 3 0x14200 bored sosplice
95457 207364 75576 0 3 0x82 thrsleep syz-fuzzer
95457 43665 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 392014 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 72216 75576 0 3 0x4000082 wait syz-fuzzer
95457 152364 75576 0 3 0x4000082 wait syz-fuzzer
95457 521480 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 310858 75576 0 3 0x4000082 kqread syz-fuzzer
95457 109261 75576 0 3 0x4000082 wait syz-fuzzer
95457 186166 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 395110 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 157929 75576 0 3 0x4000082 wait syz-fuzzer
95457 399270 75576 0 3 0x4000082 wait syz-fuzzer
95457 251757 75576 0 3 0x4000082 wait syz-fuzzer
95457 475560 75576 0 3 0x4000082 wait syz-fuzzer
95457 403497 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 8203 75576 0 3 0x4000082 wait syz-fuzzer
75576 96190 66844 0 3 0x10008a sigsusp ksh
66844 220307 22025 0 3 0x9a kqread sshd
22025 402568 1 0 3 0x88 kqread sshd
75915 407060 31788 74 3 0x1100092 bpf pflogd
31788 417259 1 0 3 0x80 netio pflogd
41179 30589 17525 73 3 0x1100090 kqread syslogd
17525 508244 1 0 3 0x100082 netio syslogd
39633 76968 1 0 3 0x100080 kqread resolvd
83807 31228 45426 77 3 0x100092 kqread dhcpleased
9160 454935 45426 77 3 0x100092 kqread dhcpleased
45426 299658 1 0 3 0x80 kqread dhcpleased
33989 465976 0 0 3 0x14200 bored smr
33357 200144 0 0 2 0x14200 zerothread
75320 78615 0 0 3 0x14200 aiodoned aiodoned
11070 245494 0 0 3 0x14200 syncer update
79888 260086 0 0 3 0x14200 cleaner cleaner
*97064 157225 0 0 7 0x14200 reaper
69437 93605 0 0 3 0x14200 pgdaemon pagedaemon
34256 128955 0 0 3 0x14200 bored viomb
18475 37981 0 0 3 0x40014200 acpi0 acpi0
55093 489402 0 0 3 0x40014200 idle1
62132 394633 0 0 3 0x14200 bored softnet
83656 207269 0 0 3 0x14200 bored softnet
77259 455713 0 0 3 0x14200 bored softnet
63610 137073 0 0 3 0x14200 bored softnet
27359 211038 0 0 3 0x14200 bored systqmp
28200 270470 0 0 3 0x14200 bored systq
47474 102977 0 0 3 0x40014200 bored softclock
85083 381174 0 0 3 0x40014200 idle0
1 288702 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10211 6504K 7084K 78643K 22422 0
pcb 13 12K 13K 78643K 644 0
rtable 193 7K 9K 78643K 2822 0
ifaddr 86 20K 20K 78643K 515 0
counters 58 35K 36K 78643K 276 0
ioctlops 0 0K 4K 78643K 2161 0
iov 0 0K 24K 78643K 939 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1491 93K 93K 78643K 10156 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 50 0
VM map 2 1K 1K 78643K 2 0
sem 20 6K 8K 78643K 130 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 85K 78643K 18696 0
sigio 0 0K 0K 78643K 140 0
proc 71 91K 152K 78643K 1439 0
subproc 104 6K 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 448 0
in_multi 78 5K 6K 78643K 637 0
ether_multi 1 0K 0K 78643K 91 0
mrt 1 0K 0K 78643K 50 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 85 387K 387K 78643K 85 0
exec 0 0K 1K 78643K 1823 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 397 508K 568K 78643K 114412 0
UVM aobj 131 4K 4K 78643K 154 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 125 0
NDP 13 0K 2K 78643K 178 0
temp 133 4702K 70238K 78643K 136691 0
kqueue 12 18K 26K 78643K 622 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 2206 0 2137 11 8 3 3 0 8 0
rtentry 112 479 0 395 4 1 3 4 0 8 0
unpcb 144 11648 0 11633 49 46 3 10 0 8 2
syncache 296 40 0 40 5 5 0 1 0 8 0
tcpqe 32 471 0 471 6 6 0 1 0 8 0
tcpcb 776 7019 0 7015 24 17 7 8 0 8 6
arp 120 80 0 64 1 0 1 1 0 8 0
inpcb 368 8767 0 8760 38 31 7 13 0 8 6
pool(0xffffffff82b75698:inpcb): page inconsistency: page 0x0; 0 on list, 0 missing, 11 items per page
nd6 48 110 0 89 1 0 1 1 0 8 0
pkpcb 40 21 0 21 4 4 0 1 0 8 0
kcovpl 48 35 0 27 1 0 1 1 0 8 0
mppekey 1024 5 0 5 2 2 0 1 0 8 0
ppxss 1256 36 0 36 6 6 0 1 0 8 0
pppxif 1448 14 0 14 4 4 0 1 0 8 0
pfstscr 40 10 0 6 1 0 1 1 0 8 0
pffrag 232 16 0 16 2 2 0 1 0 482 0
pffrnode 88 16 0 16 2 2 0 1 0 8 0
pffrent 40 32 0 32 2 2 0 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
pfanchor 1280 899 26 387 44 1 43 43 0 8 0
pfstitem 24 8 0 4 1 0 1 1 0 8 0
pfstkey 120 14 0 13 1 0 1 1 0 8 0
pfstate 384 9 0 5 1 0 1 1 0 8 0
rttmr 136 15 0 15 3 3 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1921 0 1582 42 20 22 30 0 8 0
art_table 32 1922 0 1582 4 1 3 4 0 8 0
art_node 16 478 0 405 1 0 1 1 0 8 0
sysvmsgpl 40 30 0 10 1 0 1 1 0 8 0
semapl 112 117 0 99 1 0 1 1 0 8 0
shmpl 112 151 0 23 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 22631 0 21152 93 0 93 93 0 8 0
ffsino 272 22631 0 21152 99 0 99 99 0 8 0
nchpl 144 44720 0 43080 63 0 63 63 0 8 0
uvmvnodes 80 6792 0 0 139 0 139 139 0 8 0
vnodes 216 6792 0 0 378 0 378 378 0 8 0
namei 1024 131772 0 131772 5 4 1 2 0 8 1
percpumem 16 150 0 109 1 0 1 1 0 8 0
vcpupl 2048 29 0 3 4 0 4 4 0 8 0
vmpool 568 29 0 3 3 1 2 3 0 8 0
kstatmem 264 206 0 180 2 0 2 2 0 8 0
scsiplug 72 4 0 4 1 1 0 1 0 8 0
scxspl 216 135694 0 135694 16 15 1 8 0 8 1
plimitpl 152 321 0 305 1 0 1 1 0 8 0
sigapl 424 18965 0 18915 7 1 6 6 0 8 0
futexpl 64 109396 0 109390 7 6 1 1 0 8 0
knotepl 120 672 0 0 15 1 14 15 0 8 0
kqueuepl 216 2013 0 2005 11 10 1 5 0 8 0
pipepl 320 2216 0 2188 34 26 8 8 0 8 5
fdescpl 496 18939 0 18910 6 2 4 5 0 8 0
filepl 152 83695 0 83389 79 62 17 20 0 8 5
lockfpl 104 1441 0 1439 4 3 1 2 0 8 0
lockfspl 48 559 0 557 1 0 1 1 0 8 0
sessionpl 144 52 0 35 1 0 1 1 0 8 0
pgrppl 48 82 0 65 1 0 1 1 0 8 0
ucredpl 104 3989 0 3976 1 0 1 1 0 8 0
zombiepl 144 18917 0 18915 1 0 1 1 0 8 0
processpl 1072 18965 0 18915 4 0 4 4 0 8 0
procpl 672 42974 0 42902 10 3 7 8 0 8 0
srpgc 96 36 0 36 7 7 0 1 0 8 0
sosppl 168 61 0 61 8 8 0 1 0 8 0
sockpl 488 22657 0 22566 184 172 12 34 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 14 0 0 2 0 2 2 0 8 0
mcl12k 12288 41 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 33 0 0 3 0 3 3 0 8 0
mcl4k 4096 33 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 674 0 0 39 9 30 39 0 8 0
mtagpl 96 294 0 0 5 0 5 5 0 8 0
mbufpl 256 3912 0 0 219 0 219 219 0 8 0
bufpl 288 29488 0 22697 486 0 486 486 0 8 0
anonpl 24 3264223 0 3249403 256 154 102 223 0 186 0
amapchunkpl 152 321898 0 321168 104 73 31 85 0 158 0
amappl16 200 25088 0 24659 82 59 23 31 0 8 0
amappl15 192 9 0 9 1 1 0 1 0 8 0
amappl14 184 236 0 220 2 1 1 2 0 8 0
amappl13 176 7 0 7 1 1 0 1 0 8 0
amappl12 168 767 0 764 1 0 1 1 0 8 0
amappl11 160 55 0 40 1 0 1 1 0 8 0
amappl10 152 62 0 50 1 0 1 1 0 8 0
amappl9 144 965 0 965 11 11 0 1 0 8 0
amappl8 136 413 0 319 5 1 4 4 0 8 0
amappl7 128 112 0 92 1 0 1 1 0 8 0
amappl6 120 636 0 614 2 1 1 2 0 8 0
amappl5 112 168 0 157 1 0 1 1 0 8 0
amappl4 104 895 0 854 3 1 2 2 0 8 0
amappl3 96 51438 0 51380 2 0 2 2 0 8 0
amappl2 88 19869 0 19788 3 1 2 3 0 8 0
amappl1 80 405683 0 404905 25 7 18 22 0 8 1
amappl 88 113765 0 113536 6 0 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 72 153 0 23 3 0 3 3 0 8 0
uaddrrnd 24 18968 0 18913 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 18968 0 18913 1 0 1 1 0 8 0
vmmpekpl 168 113294 0 113225 4 0 4 4 0 8 0
vmmpepl 168 1634884 0 1632159 238 110 128 141 0 357 2
vmsppl 368 18967 0 18912 7 1 6 6 0 8 0
rwobjpl 56 400340 0 391696 127 4 123 123 0 8 0
pdppl 4096 37943 0 37850 625 530 95 102 0 8 2
pool(0xffffffff82b6e1f8:pdppl): page inconsistency: page 0x0; 0 on list, 0 missing, 1 items per page
pool(0xffffffff82b6e1f8:pdppl): page inconsistency: page 0x0; 0 on list, 0 missing, 1 items per page
pvpl 32 6764207 0 6743390 534 338 196 418 0 265 0
pmappl 248 18967 0 18912 5 1 4 4 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1683 0 605 32 0 32 32 0 8 0
phpool: pool(0xffffffff82ab2ec0:phpool): page inconsistency: page 0x0; at page head addr 0xfffffd805e132f90 (p 0xfffffd805e132000)
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff829cbff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7ffff037d0, count: 12
ddb{0}> trace
x86_ipi_db(ffffffff829cbff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7ffff037d0, count: -3
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: dc8195713cae midicat.c: add missing CVS tag; ok millert@
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1121346b880000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=ef1f11e2e626f47de655
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/d5eaaf0ac4d3/disk-dc819571.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/0f306d064181/bsd-dc819571.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/17dd4d95a4d7/kernel-dc819571.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ef1f11...@syzkaller.appspotmail.com
panic: pr_find_pagehead: pdppl: incorrect page
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
290162 55728 0 0 0 0 syz-executor.6
*157225 97064 0 0x14000 0x200 1K reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: pr_find_pagehead: pdppl: incorrect page
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff8000212395c0
rbx 0xffff800020dd9b8f
rdx 0
rcx 0
rax 0xffff800021233508
r8 0x101010101010101
r9 0x8080808080808080
r10 0x28d8584a2612f61f
r11 0xa81f51954bc52c6e
r12 0xffff800020dd9990
r13 0
r14 0
r15 0x1
rip 0xffffffff81d642c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000212395b0
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (reaper) pid=157225 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
pri=4, usrpri=85, nice=20
forw=0xffffffffffffffff, list=0xffff800021233a48,0xffff800021232fd8
process=0xffff8000fffff670 user=0xffff800021234000, vmspace=0xffffffff82bb1a08
estcpu=35, cpticks=7, pctcpu=4.32
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
59210 424323 59326 0 2 0 syz-executor.1
59210 239509 59326 0 3 0x4000080 fsleep syz-executor.1
55728 290162 56776 0 7 0 syz-executor.6
55728 354409 56776 0 2 0x4000000 syz-executor.6
2958 243769 16399 0 2 0 syz-executor.5
2958 372094 16399 0 3 0x4000080 fsleep syz-executor.5
41787 55504 54783 0 2 0 syz-executor.3
41787 243923 54783 0 3 0x4000080 fsleep syz-executor.3
20078 96383 72792 0 2 0 syz-executor.0
20078 276357 72792 0 3 0x4000080 fsleep syz-executor.0
20078 53800 72792 0 3 0x4000080 fsleep syz-executor.0
50748 227658 23460 0 2 0 syz-executor.7
50748 161839 23460 0 3 0x4000080 fsleep syz-executor.7
51414 131624 95457 0 3 0x82 nanoslp syz-executor.2
16399 437907 95457 0 3 0x82 nanoslp syz-executor.5
36035 71519 95457 0 3 0x82 nanoslp syz-executor.4
56776 416755 95457 0 3 0x82 nanoslp syz-executor.6
68658 444122 0 0 3 0x14200 acct acct
54783 56338 95457 0 3 0x82 nanoslp syz-executor.3
72792 414022 95457 0 3 0x82 nanoslp syz-executor.0
59326 225837 95457 0 3 0x82 nanoslp syz-executor.1
13088 123361 1 0 3 0x100083 ttyin getty
23460 142992 95457 0 3 0x82 nanoslp syz-executor.7
79190 354414 0 0 3 0x14200 bored sosplice
95457 207364 75576 0 3 0x82 thrsleep syz-fuzzer
95457 43665 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 392014 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 72216 75576 0 3 0x4000082 wait syz-fuzzer
95457 152364 75576 0 3 0x4000082 wait syz-fuzzer
95457 521480 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 310858 75576 0 3 0x4000082 kqread syz-fuzzer
95457 109261 75576 0 3 0x4000082 wait syz-fuzzer
95457 186166 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 395110 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 157929 75576 0 3 0x4000082 wait syz-fuzzer
95457 399270 75576 0 3 0x4000082 wait syz-fuzzer
95457 251757 75576 0 3 0x4000082 wait syz-fuzzer
95457 475560 75576 0 3 0x4000082 wait syz-fuzzer
95457 403497 75576 0 3 0x4000082 thrsleep syz-fuzzer
95457 8203 75576 0 3 0x4000082 wait syz-fuzzer
75576 96190 66844 0 3 0x10008a sigsusp ksh
66844 220307 22025 0 3 0x9a kqread sshd
22025 402568 1 0 3 0x88 kqread sshd
75915 407060 31788 74 3 0x1100092 bpf pflogd
31788 417259 1 0 3 0x80 netio pflogd
41179 30589 17525 73 3 0x1100090 kqread syslogd
17525 508244 1 0 3 0x100082 netio syslogd
39633 76968 1 0 3 0x100080 kqread resolvd
83807 31228 45426 77 3 0x100092 kqread dhcpleased
9160 454935 45426 77 3 0x100092 kqread dhcpleased
45426 299658 1 0 3 0x80 kqread dhcpleased
33989 465976 0 0 3 0x14200 bored smr
33357 200144 0 0 2 0x14200 zerothread
75320 78615 0 0 3 0x14200 aiodoned aiodoned
11070 245494 0 0 3 0x14200 syncer update
79888 260086 0 0 3 0x14200 cleaner cleaner
*97064 157225 0 0 7 0x14200 reaper
69437 93605 0 0 3 0x14200 pgdaemon pagedaemon
34256 128955 0 0 3 0x14200 bored viomb
18475 37981 0 0 3 0x40014200 acpi0 acpi0
55093 489402 0 0 3 0x40014200 idle1
62132 394633 0 0 3 0x14200 bored softnet
83656 207269 0 0 3 0x14200 bored softnet
77259 455713 0 0 3 0x14200 bored softnet
63610 137073 0 0 3 0x14200 bored softnet
27359 211038 0 0 3 0x14200 bored systqmp
28200 270470 0 0 3 0x14200 bored systq
47474 102977 0 0 3 0x40014200 bored softclock
85083 381174 0 0 3 0x40014200 idle0
1 288702 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10211 6504K 7084K 78643K 22422 0
pcb 13 12K 13K 78643K 644 0
rtable 193 7K 9K 78643K 2822 0
ifaddr 86 20K 20K 78643K 515 0
counters 58 35K 36K 78643K 276 0
ioctlops 0 0K 4K 78643K 2161 0
iov 0 0K 24K 78643K 939 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1491 93K 93K 78643K 10156 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 50 0
VM map 2 1K 1K 78643K 2 0
sem 20 6K 8K 78643K 130 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 85K 78643K 18696 0
sigio 0 0K 0K 78643K 140 0
proc 71 91K 152K 78643K 1439 0
subproc 104 6K 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 448 0
in_multi 78 5K 6K 78643K 637 0
ether_multi 1 0K 0K 78643K 91 0
mrt 1 0K 0K 78643K 50 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 85 387K 387K 78643K 85 0
exec 0 0K 1K 78643K 1823 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 397 508K 568K 78643K 114412 0
UVM aobj 131 4K 4K 78643K 154 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 125 0
NDP 13 0K 2K 78643K 178 0
temp 133 4702K 70238K 78643K 136691 0
kqueue 12 18K 26K 78643K 622 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 2206 0 2137 11 8 3 3 0 8 0
rtentry 112 479 0 395 4 1 3 4 0 8 0
unpcb 144 11648 0 11633 49 46 3 10 0 8 2
syncache 296 40 0 40 5 5 0 1 0 8 0
tcpqe 32 471 0 471 6 6 0 1 0 8 0
tcpcb 776 7019 0 7015 24 17 7 8 0 8 6
arp 120 80 0 64 1 0 1 1 0 8 0
inpcb 368 8767 0 8760 38 31 7 13 0 8 6
pool(0xffffffff82b75698:inpcb): page inconsistency: page 0x0; 0 on list, 0 missing, 11 items per page
nd6 48 110 0 89 1 0 1 1 0 8 0
pkpcb 40 21 0 21 4 4 0 1 0 8 0
kcovpl 48 35 0 27 1 0 1 1 0 8 0
mppekey 1024 5 0 5 2 2 0 1 0 8 0
ppxss 1256 36 0 36 6 6 0 1 0 8 0
pppxif 1448 14 0 14 4 4 0 1 0 8 0
pfstscr 40 10 0 6 1 0 1 1 0 8 0
pffrag 232 16 0 16 2 2 0 1 0 482 0
pffrnode 88 16 0 16 2 2 0 1 0 8 0
pffrent 40 32 0 32 2 2 0 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
pfanchor 1280 899 26 387 44 1 43 43 0 8 0
pfstitem 24 8 0 4 1 0 1 1 0 8 0
pfstkey 120 14 0 13 1 0 1 1 0 8 0
pfstate 384 9 0 5 1 0 1 1 0 8 0
rttmr 136 15 0 15 3 3 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1921 0 1582 42 20 22 30 0 8 0
art_table 32 1922 0 1582 4 1 3 4 0 8 0
art_node 16 478 0 405 1 0 1 1 0 8 0
sysvmsgpl 40 30 0 10 1 0 1 1 0 8 0
semapl 112 117 0 99 1 0 1 1 0 8 0
shmpl 112 151 0 23 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 22631 0 21152 93 0 93 93 0 8 0
ffsino 272 22631 0 21152 99 0 99 99 0 8 0
nchpl 144 44720 0 43080 63 0 63 63 0 8 0
uvmvnodes 80 6792 0 0 139 0 139 139 0 8 0
vnodes 216 6792 0 0 378 0 378 378 0 8 0
namei 1024 131772 0 131772 5 4 1 2 0 8 1
percpumem 16 150 0 109 1 0 1 1 0 8 0
vcpupl 2048 29 0 3 4 0 4 4 0 8 0
vmpool 568 29 0 3 3 1 2 3 0 8 0
kstatmem 264 206 0 180 2 0 2 2 0 8 0
scsiplug 72 4 0 4 1 1 0 1 0 8 0
scxspl 216 135694 0 135694 16 15 1 8 0 8 1
plimitpl 152 321 0 305 1 0 1 1 0 8 0
sigapl 424 18965 0 18915 7 1 6 6 0 8 0
futexpl 64 109396 0 109390 7 6 1 1 0 8 0
knotepl 120 672 0 0 15 1 14 15 0 8 0
kqueuepl 216 2013 0 2005 11 10 1 5 0 8 0
pipepl 320 2216 0 2188 34 26 8 8 0 8 5
fdescpl 496 18939 0 18910 6 2 4 5 0 8 0
filepl 152 83695 0 83389 79 62 17 20 0 8 5
lockfpl 104 1441 0 1439 4 3 1 2 0 8 0
lockfspl 48 559 0 557 1 0 1 1 0 8 0
sessionpl 144 52 0 35 1 0 1 1 0 8 0
pgrppl 48 82 0 65 1 0 1 1 0 8 0
ucredpl 104 3989 0 3976 1 0 1 1 0 8 0
zombiepl 144 18917 0 18915 1 0 1 1 0 8 0
processpl 1072 18965 0 18915 4 0 4 4 0 8 0
procpl 672 42974 0 42902 10 3 7 8 0 8 0
srpgc 96 36 0 36 7 7 0 1 0 8 0
sosppl 168 61 0 61 8 8 0 1 0 8 0
sockpl 488 22657 0 22566 184 172 12 34 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 14 0 0 2 0 2 2 0 8 0
mcl12k 12288 41 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 33 0 0 3 0 3 3 0 8 0
mcl4k 4096 33 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 674 0 0 39 9 30 39 0 8 0
mtagpl 96 294 0 0 5 0 5 5 0 8 0
mbufpl 256 3912 0 0 219 0 219 219 0 8 0
bufpl 288 29488 0 22697 486 0 486 486 0 8 0
anonpl 24 3264223 0 3249403 256 154 102 223 0 186 0
amapchunkpl 152 321898 0 321168 104 73 31 85 0 158 0
amappl16 200 25088 0 24659 82 59 23 31 0 8 0
amappl15 192 9 0 9 1 1 0 1 0 8 0
amappl14 184 236 0 220 2 1 1 2 0 8 0
amappl13 176 7 0 7 1 1 0 1 0 8 0
amappl12 168 767 0 764 1 0 1 1 0 8 0
amappl11 160 55 0 40 1 0 1 1 0 8 0
amappl10 152 62 0 50 1 0 1 1 0 8 0
amappl9 144 965 0 965 11 11 0 1 0 8 0
amappl8 136 413 0 319 5 1 4 4 0 8 0
amappl7 128 112 0 92 1 0 1 1 0 8 0
amappl6 120 636 0 614 2 1 1 2 0 8 0
amappl5 112 168 0 157 1 0 1 1 0 8 0
amappl4 104 895 0 854 3 1 2 2 0 8 0
amappl3 96 51438 0 51380 2 0 2 2 0 8 0
amappl2 88 19869 0 19788 3 1 2 3 0 8 0
amappl1 80 405683 0 404905 25 7 18 22 0 8 1
amappl 88 113765 0 113536 6 0 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 72 153 0 23 3 0 3 3 0 8 0
uaddrrnd 24 18968 0 18913 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 18968 0 18913 1 0 1 1 0 8 0
vmmpekpl 168 113294 0 113225 4 0 4 4 0 8 0
vmmpepl 168 1634884 0 1632159 238 110 128 141 0 357 2
vmsppl 368 18967 0 18912 7 1 6 6 0 8 0
rwobjpl 56 400340 0 391696 127 4 123 123 0 8 0
pdppl 4096 37943 0 37850 625 530 95 102 0 8 2
pool(0xffffffff82b6e1f8:pdppl): page inconsistency: page 0x0; 0 on list, 0 missing, 1 items per page
pool(0xffffffff82b6e1f8:pdppl): page inconsistency: page 0x0; 0 on list, 0 missing, 1 items per page
pvpl 32 6764207 0 6743390 534 338 196 418 0 265 0
pmappl 248 18967 0 18912 5 1 4 4 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1683 0 605 32 0 32 32 0 8 0
phpool: pool(0xffffffff82ab2ec0:phpool): page inconsistency: page 0x0; at page head addr 0xfffffd805e132f90 (p 0xfffffd805e132000)
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff829cbff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7ffff037d0, count: 12
ddb{0}> trace
x86_ipi_db(ffffffff829cbff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7ffff037d0, count: -3
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff825af124) at panic+0x177 sys/kern/subr_prf.c:198
pool_do_put(ffffffff82b6e1f8,fffffd8071311000) at pool_do_put+0x36a
pool_put(ffffffff82b6e1f8,fffffd8071311000) at pool_put+0x8b sys/kern/subr_pool.c:799
pmap_destroy(fffffd8069c255d0) at pmap_destroy+0x25a sys/arch/amd64/amd64/pmap.c:1409
uvm_map_teardown(fffffd80689c81a0) at uvm_map_teardown+0x29a sys/uvm/uvm_map.c:2601
uvmspace_free(fffffd80689c81a0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3513
reaper(ffff800021233508) at reaper+0x19a sys/kern/kern_exit.c:448
end trace frame: 0x0, count: -8
---
This report is generated by a bot. It may contain errors.
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syzbot
Feb 28, 2023, 7:32:43 PM2/28/23
to syzkaller-o...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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