assert "vp->v_usecount == NUM" failed in vfs_subr.c
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syzbot
Jul 12, 2024, 11:01:27 AM (5 days ago) Jul 12
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: e24fbf55691f Add pool to allocate individual rtkit task ar..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1477f535980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=4c48bad8069a26f76add
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/982a1d089c32/disk-e24fbf55.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/802160f45461/bsd-e24fbf55.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/59f7887ac187/kernel-e24fbf55.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+4c48ba...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
268511 71980 0 0x8000000 0 1 syz-executor
*103318 22208 0 0x8000000 0x4000000 0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
end trace frame: 0xffff80002ad58ba0, count: 0
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
syscall(ffff80002ad58bb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002ad58bb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc478897c280, count: -16
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002ad58200
rbx 0xffffffff834a3d87 cpu_info_full_primary+0x2d87
rdx 0
rcx 0xffff80003619c028
rax 0xffffffff834a2ff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xc0e173c029b47e0
r11 0x1821622067fbff8e
r12 0xffffffff834a3b88 cpu_info_full_primary+0x2b88
r13 0
r14 0
r15 0x1
rip 0xffffffff813bf665 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002ad581f0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=103318 pid=22208 tcnt=4 stat=onproc
flags process=8000000 proc=4000000<THREAD>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003619c7c0,0xffff80003619cce0
process=0xffff800031c0b630 user=0xffff80002ad53000, vmspace=0xfffffd806c765dd8
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
27483 158497 15024 0 2 0x8000000 syz-executor
71980 268511 83193 0 7 0x8000000 syz-executor
71980 285148 83193 0 2 0xc000000 syz-executor
40090 274668 45488 0 2 0x8000000 syz-executor
38987 259962 58168 0 3 0x8000080 nanoslp syz-executor
38987 425296 58168 0 3 0xc000080 kqpoll syz-executor
38987 137582 58168 0 3 0xc000080 fsleep syz-executor
22208 424479 66693 0 3 0x8000080 nanoslp syz-executor
22208 356475 66693 0 3 0xc000080 fsleep syz-executor
*22208 103318 66693 0 7 0xc000000 syz-executor
22208 496824 66693 0 3 0xc000080 fsleep syz-executor
66693 66509 73140 0 3 0x8000082 nanoslp syz-executor
83229 137331 73140 0 3 0x8000002 biowait syz-executor
83193 506635 73140 0 3 0x8000082 nanoslp syz-executor
45488 276581 73140 0 3 0x8000082 nanoslp syz-executor
78740 377636 73140 0 2 0x8000002 syz-executor
58168 348565 73140 0 3 0x8000082 nanoslp syz-executor
80153 268869 73140 0 3 0x8000002 biowait syz-executor
15024 33689 73140 0 2 0x8000002 syz-executor
60971 74187 0 0 3 0x14200 acct acct
99869 89165 0 0 3 0x14280 nfsidl nfsio
9129 156514 0 0 3 0x14280 nfsidl nfsio
62676 335077 0 0 3 0x14280 nfsidl nfsio
52560 463606 0 0 3 0x14280 nfsidl nfsio
41408 431416 0 0 3 0x14280 nfsidl nfsio
13978 451930 0 0 3 0x14280 nfsidl nfsio
61862 367400 0 0 3 0x14280 nfsidl nfsio
16925 457137 0 0 3 0x14280 nfsidl nfsio
53376 364775 0 0 3 0x14280 nfsidl nfsio
29566 266343 0 0 3 0x14280 nfsidl nfsio
56160 17075 0 0 3 0x14280 nfsidl nfsio
37256 146023 0 0 3 0x14280 nfsidl nfsio
16799 48262 0 0 3 0x14280 nfsidl nfsio
76369 133047 0 0 3 0x14280 nfsidl nfsio
87470 187695 0 0 3 0x14280 nfsidl nfsio
62359 438785 0 0 3 0x14280 nfsidl nfsio
229 347175 0 0 3 0x14280 nfsidl nfsio
30583 431862 0 0 3 0x14280 nfsidl nfsio
83461 489605 0 0 3 0x14280 nfsidl nfsio
85554 252862 0 0 3 0x14280 nfsidl nfsio
63379 58547 0 0 3 0x14200 bored sosplice
73140 215844 78939 0 3 0x8000082 kqread syz-executor
78939 346512 10861 0 3 0x810008a sigsusp ksh
10861 444478 70538 0 3 0x18000098 kqread sshd-session
70538 24830 53583 0 3 0x18000092 kqread sshd-session
19211 189893 1 0 3 0x18100083 ttyopn getty
53583 284950 1 0 3 0x18000088 kqread sshd
44218 288732 92636 74 3 0x19100092 bpf pflogd
92636 215221 1 0 3 0x18000080 sbwait pflogd
83376 124113 84477 73 2 0x19100010 syslogd
84477 264608 1 0 3 0x18100082 sbwait syslogd
86731 393282 1 0 3 0x18100080 kqread resolvd
15523 173177 28114 77 3 0x18100092 kqread dhcpleased
69597 466613 28114 77 3 0x18100092 kqread dhcpleased
28114 202675 1 0 3 0x18000080 kqread dhcpleased
89556 323812 0 0 3 0x14200 bored smr
16888 247589 0 0 3 0x14200 pgzero zerothread
105 88464 0 0 3 0x14200 aiodoned aiodoned
10161 386121 0 0 3 0x14200 syncer update
39057 252446 0 0 3 0x14200 cleaner cleaner
431 387945 0 0 3 0x14200 reaper reaper
18618 31272 0 0 3 0x14200 pgdaemon pagedaemon
87234 13648 0 0 3 0x14200 bored viomb
94020 15454 0 0 3 0x40014200 acpi0 acpi0
11992 456304 0 0 3 0x40014200 idle1
58855 87383 0 0 3 0x14200 bored softnet3
98852 349599 0 0 3 0x14200 bored softnet2
38293 100867 0 0 3 0x14200 bored softnet1
16405 205296 0 0 3 0x14200 bored softnet0
59294 110363 0 0 3 0x14200 bored systqmp
52524 181959 0 0 3 0x14200 bored systq
92267 202092 0 0 3 0x14200 tmoslp softclockmp
73859 341762 0 0 3 0x40014200 tmoslp softclock
57622 62543 0 0 3 0x40014200 idle0
1 98992 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff834e2e38)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 mtx_enter_try+0x178
#2 mtx_enter+0x60 sys/kern/kern_lock.c:239
#3 vdoom+0x2b sys/kern/vfs_subr.c:639
#4 ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
#5 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
#6 vclean+0x234 sys/kern/vfs_subr.c:1107
#7 vgonel+0xec sys/kern/vfs_subr.c:1197
#8 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
#9 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
#10 ptmioctl+0x832 sys/kern/tty_pty.c:1172
#11 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#12 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
#13 sys_ioctl+0x67c
#14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#15 Xsyscall+0x128
Process 22208 (syz-executor) thread 0xffff80003619c028 (103318)
Process 83229 (syz-executor) thread 0xffff800034592ce8 (137331)
Process 80153 (syz-executor) thread 0xffff800034592550 (268869)
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10214 10367K 11209K 166960K 13410 0
pcb 17 18K 20K 166960K 401 0
rtable 216 6K 7K 166960K 2941 0
pf 36 10K 10K 166960K 248 0
ifaddr 46 16K 16K 166960K 394 0
ifgroup 60 2K 2K 166960K 436 0
sysctl 3 0K 0K 166960K 5 0
counters 66 36K 37K 166960K 262 0
ioctlops 0 0K 4K 166960K 1669 0
iov 0 0K 14K 166960K 258 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1454 91K 92K 166960K 3711 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 28 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 205 0
dirhash 15 2K 2K 166960K 36 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 15 53K 93K 166960K 2393 0
sigio 0 0K 0K 166960K 53 0
proc 70 91K 128K 166960K 2890 0
subproc 104 6K 6K 166960K 1144 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 150 0
in_multi 99 7K 7K 166960K 1009 0
ether_multi 1 0K 0K 166960K 13 0
mrt 1 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 115 519K 519K 166960K 115 0
exec 0 0K 1K 166960K 1691 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 208 72K 95K 166960K 19137 0
UVM aobj 16 2K 2K 166960K 16 0
pinsyscall 40 80K 108K 166960K 5542 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 114 0
NDP 13 0K 2K 166960K 287 0
temp 77 6816K 6884K 166960K 45536 0
kqueue 13 20K 30K 166960K 175 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 545 0 542 8 7 1 3 0 8 0
rtentry 112 1023 0 924 4 1 3 4 0 8 0
unpcb 144 1263 0 1246 17 14 3 6 0 8 2
syncache 336 5 0 5 3 2 1 1 0 8 1
tcpqe 32 1 0 1 1 0 1 1 0 8 1
tcpcb 808 477 0 472 17 15 2 8 0 8 1
arp 120 182 0 164 1 0 1 1 0 8 0
inpcb 384 2174 0 2165 35 24 11 11 0 8 9
nd6 136 273 0 249 1 0 1 1 0 8 0
pkpcb 40 11 0 11 4 3 1 1 0 8 1
kcovpl 48 88 0 80 1 0 1 1 0 8 0
ppxss 1168 11 0 11 4 3 1 1 0 8 1
pffrag 232 17 0 16 1 0 1 1 0 482 0
pffrnode 88 16 0 15 1 0 1 1 0 8 0
pffrent 40 73 0 72 1 0 1 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
pfstitem 24 171 0 131 1 0 1 1 0 8 0
pfstkey 128 171 0 131 2 0 2 2 0 8 0
pfstate 376 171 0 131 6 1 5 6 0 8 0
pfrule 1344 24 0 19 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4061 0 3616 32 4 28 30 0 8 0
art_table 32 4062 0 3616 4 0 4 4 0 8 0
art_node 16 1013 0 924 1 0 1 1 0 8 0
sysvmsgpl 40 14 0 5 1 0 1 1 0 8 0
semapl 112 202 0 192 1 0 1 1 0 8 0
shmpl 112 13 0 0 1 0 1 1 0 8 0
dirhash 1024 33 0 14 3 0 3 3 0 8 0
dino2pl 256 3790 0 2129 104 0 104 104 0 8 0
ffsino 272 3790 0 2129 111 0 111 111 0 8 0
nchpl 144 5661 0 3884 68 1 67 67 0 8 0
uvmvnodes 80 5762 0 0 118 0 118 118 0 8 0
vnodes 216 5762 0 0 321 0 321 321 0 8 0
namei 1024 28520 0 28520 5 4 1 2 0 8 1
percpumem 16 145 0 98 1 0 1 1 0 8 0
vcpupl 3904 2 0 1 2 1 1 1 0 8 0
vmpool 696 40 0 39 5 4 1 1 0 8 0
kstatmem 264 222 0 196 2 0 2 2 0 8 0
scsiplug 72 3 0 3 2 2 0 1 0 8 0
scxspl 216 31510 0 31508 19 18 1 8 1 8 0
plimitpl 152 624 0 606 1 0 1 1 0 8 0
sigapl 424 2553 0 2484 11 2 9 9 0 8 0
futexpl 64 20114 0 20111 9 8 1 1 0 8 0
knotepl 120 814 0 0 23 0 23 23 0 8 0
kqueuepl 216 530 0 486 14 11 3 5 0 8 0
pipepl 320 649 0 622 15 10 5 8 0 8 2
fdescpl 496 2513 0 2484 9 4 5 5 0 8 0
filepl 152 15720 0 15437 55 41 14 23 0 8 2
lockfpl 104 417 0 415 1 0 1 1 0 8 0
lockfspl 48 178 0 176 1 0 1 1 0 8 0
sessionpl 144 102 0 93 1 0 1 1 0 8 0
pgrppl 48 205 0 188 1 0 1 1 0 8 0
ucredpl 104 2074 0 2061 1 0 1 1 0 8 0
zombiepl 144 2484 0 2484 1 0 1 1 0 8 1
processpl 1152 2553 0 2484 7 1 6 6 0 8 0
procpl 648 4500 0 4425 15 7 8 8 0 8 0
sosppl 168 12 0 12 7 6 1 1 0 8 1
sockpl 664 4000 0 3971 56 44 12 20 0 8 9
mcl64k 65536 8 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 8 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k 2048 261 0 0 31 0 31 31 0 8 0
mtagpl 96 9 0 0 1 0 1 1 0 8 0
mbufpl 256 1125 0 0 61 0 61 61 0 8 0
bufpl 280 9734 0 2087 547 0 547 547 0 8 0
anonpl 24 346264 0 343024 80 29 51 52 0 185 20
amapchunkpl 152 59518 0 59117 49 17 32 33 0 158 12
amappl16 200 5437 0 5418 49 47 2 14 0 8 0
amappl15 192 8 0 8 2 1 1 1 0 8 1
amappl14 184 277 0 264 1 0 1 1 0 8 0
amappl13 176 8 0 8 1 1 0 1 0 8 0
amappl12 168 4417 0 4389 4 2 2 3 0 8 0
amappl11 160 54 0 40 1 0 1 1 0 8 0
amappl10 152 8 0 8 1 1 0 1 0 8 0
amappl9 144 143 0 143 1 1 0 1 0 8 0
amappl8 136 33 0 31 1 0 1 1 0 8 0
amappl7 128 316 0 303 1 0 1 1 0 8 0
amappl6 120 962 0 961 1 0 1 1 0 8 0
amappl5 112 457 0 445 1 0 1 1 0 8 0
amappl4 104 560 0 540 1 0 1 1 0 8 0
amappl3 96 11618 0 11524 8 4 4 4 0 8 1
amappl2 88 1734 0 1667 2 0 2 2 0 8 0
amappl1 80 19392 0 18818 14 1 13 14 0 8 0
amappl 88 18127 0 17983 7 2 5 5 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 15 0 0 1 0 1 1 0 8 0
uaddrrnd 24 2553 0 2523 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2553 0 2523 1 0 1 1 0 8 0
vmmpekpl 168 22928 0 22873 4 0 4 4 0 8 0
vmmpepl 168 157191 0 155435 118 33 85 94 0 357 2
vmsppl 440 2552 0 2523 6 2 4 5 0 8 0
rwobjpl 56 50109 0 43423 96 1 95 95 0 8 0
pdppl 4096 5113 0 5047 219 147 72 85 0 8 6
pvpl 32 29584 0 0 241 2 239 239 0 265 0
pmappl 248 2552 0 2523 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 598 0 177 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
syscall(ffff80002ad58bb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002ad58bb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc478897c280, count: -16
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x7e3a72988a90, count: 12
ddb{1}> trace
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x7e3a72988a90, count: -3
---
This report is generated by a bot. It may contain errors.
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#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: e24fbf55691f Add pool to allocate individual rtkit task ar..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1477f535980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=4c48bad8069a26f76add
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/982a1d089c32/disk-e24fbf55.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/802160f45461/bsd-e24fbf55.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/59f7887ac187/kernel-e24fbf55.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+4c48ba...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
268511 71980 0 0x8000000 0 1 syz-executor
*103318 22208 0 0x8000000 0x4000000 0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
end trace frame: 0xffff80002ad58ba0, count: 0
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "vp->v_usecount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c", line 639
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
syscall(ffff80002ad58bb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002ad58bb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc478897c280, count: -16
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002ad58200
rbx 0xffffffff834a3d87 cpu_info_full_primary+0x2d87
rdx 0
rcx 0xffff80003619c028
rax 0xffffffff834a2ff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xc0e173c029b47e0
r11 0x1821622067fbff8e
r12 0xffffffff834a3b88 cpu_info_full_primary+0x2b88
r13 0
r14 0
r15 0x1
rip 0xffffffff813bf665 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002ad581f0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=103318 pid=22208 tcnt=4 stat=onproc
flags process=8000000 proc=4000000<THREAD>
runpri=32, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003619c7c0,0xffff80003619cce0
process=0xffff800031c0b630 user=0xffff80002ad53000, vmspace=0xfffffd806c765dd8
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
27483 158497 15024 0 2 0x8000000 syz-executor
71980 268511 83193 0 7 0x8000000 syz-executor
71980 285148 83193 0 2 0xc000000 syz-executor
40090 274668 45488 0 2 0x8000000 syz-executor
38987 259962 58168 0 3 0x8000080 nanoslp syz-executor
38987 425296 58168 0 3 0xc000080 kqpoll syz-executor
38987 137582 58168 0 3 0xc000080 fsleep syz-executor
22208 424479 66693 0 3 0x8000080 nanoslp syz-executor
22208 356475 66693 0 3 0xc000080 fsleep syz-executor
*22208 103318 66693 0 7 0xc000000 syz-executor
22208 496824 66693 0 3 0xc000080 fsleep syz-executor
66693 66509 73140 0 3 0x8000082 nanoslp syz-executor
83229 137331 73140 0 3 0x8000002 biowait syz-executor
83193 506635 73140 0 3 0x8000082 nanoslp syz-executor
45488 276581 73140 0 3 0x8000082 nanoslp syz-executor
78740 377636 73140 0 2 0x8000002 syz-executor
58168 348565 73140 0 3 0x8000082 nanoslp syz-executor
80153 268869 73140 0 3 0x8000002 biowait syz-executor
15024 33689 73140 0 2 0x8000002 syz-executor
60971 74187 0 0 3 0x14200 acct acct
99869 89165 0 0 3 0x14280 nfsidl nfsio
9129 156514 0 0 3 0x14280 nfsidl nfsio
62676 335077 0 0 3 0x14280 nfsidl nfsio
52560 463606 0 0 3 0x14280 nfsidl nfsio
41408 431416 0 0 3 0x14280 nfsidl nfsio
13978 451930 0 0 3 0x14280 nfsidl nfsio
61862 367400 0 0 3 0x14280 nfsidl nfsio
16925 457137 0 0 3 0x14280 nfsidl nfsio
53376 364775 0 0 3 0x14280 nfsidl nfsio
29566 266343 0 0 3 0x14280 nfsidl nfsio
56160 17075 0 0 3 0x14280 nfsidl nfsio
37256 146023 0 0 3 0x14280 nfsidl nfsio
16799 48262 0 0 3 0x14280 nfsidl nfsio
76369 133047 0 0 3 0x14280 nfsidl nfsio
87470 187695 0 0 3 0x14280 nfsidl nfsio
62359 438785 0 0 3 0x14280 nfsidl nfsio
229 347175 0 0 3 0x14280 nfsidl nfsio
30583 431862 0 0 3 0x14280 nfsidl nfsio
83461 489605 0 0 3 0x14280 nfsidl nfsio
85554 252862 0 0 3 0x14280 nfsidl nfsio
63379 58547 0 0 3 0x14200 bored sosplice
73140 215844 78939 0 3 0x8000082 kqread syz-executor
78939 346512 10861 0 3 0x810008a sigsusp ksh
10861 444478 70538 0 3 0x18000098 kqread sshd-session
70538 24830 53583 0 3 0x18000092 kqread sshd-session
19211 189893 1 0 3 0x18100083 ttyopn getty
53583 284950 1 0 3 0x18000088 kqread sshd
44218 288732 92636 74 3 0x19100092 bpf pflogd
92636 215221 1 0 3 0x18000080 sbwait pflogd
83376 124113 84477 73 2 0x19100010 syslogd
84477 264608 1 0 3 0x18100082 sbwait syslogd
86731 393282 1 0 3 0x18100080 kqread resolvd
15523 173177 28114 77 3 0x18100092 kqread dhcpleased
69597 466613 28114 77 3 0x18100092 kqread dhcpleased
28114 202675 1 0 3 0x18000080 kqread dhcpleased
89556 323812 0 0 3 0x14200 bored smr
16888 247589 0 0 3 0x14200 pgzero zerothread
105 88464 0 0 3 0x14200 aiodoned aiodoned
10161 386121 0 0 3 0x14200 syncer update
39057 252446 0 0 3 0x14200 cleaner cleaner
431 387945 0 0 3 0x14200 reaper reaper
18618 31272 0 0 3 0x14200 pgdaemon pagedaemon
87234 13648 0 0 3 0x14200 bored viomb
94020 15454 0 0 3 0x40014200 acpi0 acpi0
11992 456304 0 0 3 0x40014200 idle1
58855 87383 0 0 3 0x14200 bored softnet3
98852 349599 0 0 3 0x14200 bored softnet2
38293 100867 0 0 3 0x14200 bored softnet1
16405 205296 0 0 3 0x14200 bored softnet0
59294 110363 0 0 3 0x14200 bored systqmp
52524 181959 0 0 3 0x14200 bored systq
92267 202092 0 0 3 0x14200 tmoslp softclockmp
73859 341762 0 0 3 0x40014200 tmoslp softclock
57622 62543 0 0 3 0x40014200 idle0
1 98992 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/vfs_subr.c:119 r = 0 (0xffffffff834e2e38)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 mtx_enter_try+0x178
#2 mtx_enter+0x60 sys/kern/kern_lock.c:239
#3 vdoom+0x2b sys/kern/vfs_subr.c:639
#4 ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
#5 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
#6 vclean+0x234 sys/kern/vfs_subr.c:1107
#7 vgonel+0xec sys/kern/vfs_subr.c:1197
#8 vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
#9 VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
#10 ptmioctl+0x832 sys/kern/tty_pty.c:1172
#11 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#12 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
#13 sys_ioctl+0x67c
#14 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#14 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#15 Xsyscall+0x128
Process 22208 (syz-executor) thread 0xffff80003619c028 (103318)
Process 83229 (syz-executor) thread 0xffff800034592ce8 (137331)
Process 80153 (syz-executor) thread 0xffff800034592550 (268869)
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10214 10367K 11209K 166960K 13410 0
pcb 17 18K 20K 166960K 401 0
rtable 216 6K 7K 166960K 2941 0
pf 36 10K 10K 166960K 248 0
ifaddr 46 16K 16K 166960K 394 0
ifgroup 60 2K 2K 166960K 436 0
sysctl 3 0K 0K 166960K 5 0
counters 66 36K 37K 166960K 262 0
ioctlops 0 0K 4K 166960K 1669 0
iov 0 0K 14K 166960K 258 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1454 91K 92K 166960K 3711 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 28 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 205 0
dirhash 15 2K 2K 166960K 36 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 15 53K 93K 166960K 2393 0
sigio 0 0K 0K 166960K 53 0
proc 70 91K 128K 166960K 2890 0
subproc 104 6K 6K 166960K 1144 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 150 0
in_multi 99 7K 7K 166960K 1009 0
ether_multi 1 0K 0K 166960K 13 0
mrt 1 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 115 519K 519K 166960K 115 0
exec 0 0K 1K 166960K 1691 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 208 72K 95K 166960K 19137 0
UVM aobj 16 2K 2K 166960K 16 0
pinsyscall 40 80K 108K 166960K 5542 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 114 0
NDP 13 0K 2K 166960K 287 0
temp 77 6816K 6884K 166960K 45536 0
kqueue 13 20K 30K 166960K 175 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 545 0 542 8 7 1 3 0 8 0
rtentry 112 1023 0 924 4 1 3 4 0 8 0
unpcb 144 1263 0 1246 17 14 3 6 0 8 2
syncache 336 5 0 5 3 2 1 1 0 8 1
tcpqe 32 1 0 1 1 0 1 1 0 8 1
tcpcb 808 477 0 472 17 15 2 8 0 8 1
arp 120 182 0 164 1 0 1 1 0 8 0
inpcb 384 2174 0 2165 35 24 11 11 0 8 9
nd6 136 273 0 249 1 0 1 1 0 8 0
pkpcb 40 11 0 11 4 3 1 1 0 8 1
kcovpl 48 88 0 80 1 0 1 1 0 8 0
ppxss 1168 11 0 11 4 3 1 1 0 8 1
pffrag 232 17 0 16 1 0 1 1 0 482 0
pffrnode 88 16 0 15 1 0 1 1 0 8 0
pffrent 40 73 0 72 1 0 1 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
pfstitem 24 171 0 131 1 0 1 1 0 8 0
pfstkey 128 171 0 131 2 0 2 2 0 8 0
pfstate 376 171 0 131 6 1 5 6 0 8 0
pfrule 1344 24 0 19 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4061 0 3616 32 4 28 30 0 8 0
art_table 32 4062 0 3616 4 0 4 4 0 8 0
art_node 16 1013 0 924 1 0 1 1 0 8 0
sysvmsgpl 40 14 0 5 1 0 1 1 0 8 0
semapl 112 202 0 192 1 0 1 1 0 8 0
shmpl 112 13 0 0 1 0 1 1 0 8 0
dirhash 1024 33 0 14 3 0 3 3 0 8 0
dino2pl 256 3790 0 2129 104 0 104 104 0 8 0
ffsino 272 3790 0 2129 111 0 111 111 0 8 0
nchpl 144 5661 0 3884 68 1 67 67 0 8 0
uvmvnodes 80 5762 0 0 118 0 118 118 0 8 0
vnodes 216 5762 0 0 321 0 321 321 0 8 0
namei 1024 28520 0 28520 5 4 1 2 0 8 1
percpumem 16 145 0 98 1 0 1 1 0 8 0
vcpupl 3904 2 0 1 2 1 1 1 0 8 0
vmpool 696 40 0 39 5 4 1 1 0 8 0
kstatmem 264 222 0 196 2 0 2 2 0 8 0
scsiplug 72 3 0 3 2 2 0 1 0 8 0
scxspl 216 31510 0 31508 19 18 1 8 1 8 0
plimitpl 152 624 0 606 1 0 1 1 0 8 0
sigapl 424 2553 0 2484 11 2 9 9 0 8 0
futexpl 64 20114 0 20111 9 8 1 1 0 8 0
knotepl 120 814 0 0 23 0 23 23 0 8 0
kqueuepl 216 530 0 486 14 11 3 5 0 8 0
pipepl 320 649 0 622 15 10 5 8 0 8 2
fdescpl 496 2513 0 2484 9 4 5 5 0 8 0
filepl 152 15720 0 15437 55 41 14 23 0 8 2
lockfpl 104 417 0 415 1 0 1 1 0 8 0
lockfspl 48 178 0 176 1 0 1 1 0 8 0
sessionpl 144 102 0 93 1 0 1 1 0 8 0
pgrppl 48 205 0 188 1 0 1 1 0 8 0
ucredpl 104 2074 0 2061 1 0 1 1 0 8 0
zombiepl 144 2484 0 2484 1 0 1 1 0 8 1
processpl 1152 2553 0 2484 7 1 6 6 0 8 0
procpl 648 4500 0 4425 15 7 8 8 0 8 0
sosppl 168 12 0 12 7 6 1 1 0 8 1
sockpl 664 4000 0 3971 56 44 12 20 0 8 9
mcl64k 65536 8 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 8 0 0 1 0 1 1 0 8 0
mcl4k 4096 7 0 0 1 0 1 1 0 8 0
mcl2k 2048 261 0 0 31 0 31 31 0 8 0
mtagpl 96 9 0 0 1 0 1 1 0 8 0
mbufpl 256 1125 0 0 61 0 61 61 0 8 0
bufpl 280 9734 0 2087 547 0 547 547 0 8 0
anonpl 24 346264 0 343024 80 29 51 52 0 185 20
amapchunkpl 152 59518 0 59117 49 17 32 33 0 158 12
amappl16 200 5437 0 5418 49 47 2 14 0 8 0
amappl15 192 8 0 8 2 1 1 1 0 8 1
amappl14 184 277 0 264 1 0 1 1 0 8 0
amappl13 176 8 0 8 1 1 0 1 0 8 0
amappl12 168 4417 0 4389 4 2 2 3 0 8 0
amappl11 160 54 0 40 1 0 1 1 0 8 0
amappl10 152 8 0 8 1 1 0 1 0 8 0
amappl9 144 143 0 143 1 1 0 1 0 8 0
amappl8 136 33 0 31 1 0 1 1 0 8 0
amappl7 128 316 0 303 1 0 1 1 0 8 0
amappl6 120 962 0 961 1 0 1 1 0 8 0
amappl5 112 457 0 445 1 0 1 1 0 8 0
amappl4 104 560 0 540 1 0 1 1 0 8 0
amappl3 96 11618 0 11524 8 4 4 4 0 8 1
amappl2 88 1734 0 1667 2 0 2 2 0 8 0
amappl1 80 19392 0 18818 14 1 13 14 0 8 0
amappl 88 18127 0 17983 7 2 5 5 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 15 0 0 1 0 1 1 0 8 0
uaddrrnd 24 2553 0 2523 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2553 0 2523 1 0 1 1 0 8 0
vmmpekpl 168 22928 0 22873 4 0 4 4 0 8 0
vmmpepl 168 157191 0 155435 118 33 85 94 0 357 2
vmsppl 440 2552 0 2523 6 2 4 5 0 8 0
rwobjpl 56 50109 0 43423 96 1 95 95 0 8 0
pdppl 4096 5113 0 5047 219 147 72 85 0 8 6
pvpl 32 29584 0 0 241 2 239 239 0 265 0
pmappl 248 2552 0 2523 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 598 0 177 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d710a) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c51e,ffffffff830af90e,27f,ffffffff8302bc90) at __assert+0x29
vdoom(fffffd80679e8dc0) at vdoom+0x105 sys/kern/vfs_subr.c:641
ufs_inactive(ffff80002ad58378) at ufs_inactive+0x188 sys/ufs/ufs/ufs_inode.c:89
VOP_INACTIVE(fffffd80679e8dc0,ffff80003619c028) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vclean(fffffd80679e8dc0,8,ffff80003619c028) at vclean+0x234 sys/kern/vfs_subr.c:1107
vgonel(fffffd80679e8dc0,ffff80003619c028) at vgonel+0xec sys/kern/vfs_subr.c:1197
vop_generic_revoke(ffff80002ad58508) at vop_generic_revoke+0x32a sys/kern/vfs_default.c:105
VOP_REVOKE(fffffd8079a93b20,1) at VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
ptmioctl(5100,40287401,ffff80002ad589d0,3,ffff80003619c028) at ptmioctl+0x832 sys/kern/tty_pty.c:1172
VOP_IOCTL(fffffd806ded2440,40287401,ffff80002ad589d0,3,fffffd807f7d3548,ffff80003619c028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd806830b600,40287401,ffff80002ad589d0,ffff80003619c028) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80003619c028,ffff80002ad58bb0,ffff80002ad58b00) at sys_ioctl+0x67c
syscall(ffff80002ad58bb0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002ad58bb0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc478897c280, count: -16
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x7e3a72988a90, count: 12
ddb{1}> trace
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x7e3a72988a90, count: -3
---
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