uvm_fault: unveil_add_vnode
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syzbot
Feb 18, 2024, 10:44:20 AMFeb 18
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 12afce1bef21 sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=131effc8180000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=2dc91447bed11760d7e1
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/30864298f0ca/disk-12afce1b.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/8ab609aa020d/bsd-12afce1b.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8654f200c166/kernel-12afce1b.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2dc914...@syzkaller.appspotmail.com
uvm_fault(0xffffffff82db9a98, 0xffff800000e7d008, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at unveil_add_vnode+0xbb: movq %rax,0x8(%r13,%rbx,1)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
270001 97202 0 0x502000 0x4080000 1 syz-executor.3
*111102 59784 0 0x502000 0x4080000 0K syz-executor.1
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: 10
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: uvm_fault(0xffffffff82db9a98, 0xffff800000e7d008, 0, 2) -> e
ddb{0}> trace
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: -5
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002f938bb0
rbx 0
rdx 0
rcx 0xffff80002a20a540
rax 0xffffffffffffffff
r8 0x30
r9 0xfffffd807f7d7410
r10 0xaa6899314bd1b0fe
r11 0x329f41ce542be6ca
r12 0xfffffd80663940f0
r13 0xffff800000e7d000
r14 0xffff8000ffff4d60
r15 0
rip 0xffffffff8237ae6b unveil_add_vnode+0xbb
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002f938b30
ss 0
unveil_add_vnode+0xbb: movq %rax,0x8(%r13,%rbx,1)
ddb{0}> show proc
PROC (syz-executor.1) tid=111102 pid=59784 tcnt=3 stat=onproc
flags process=502000<SINGLEUNWIND,PLEDGE,EXECPLEDGE> proc=4080000<SUSPSINGLE,THREAD>
runpri=32, usrpri=84, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80002a2432b0
forw=0xffffffffffffffff, list=0xffff80002a209ff0,0xffff80002a2432c0
process=0xffff8000ffff4d60 user=0xffff80002f933000, vmspace=0xfffffd806b890718
estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
66131 357980 35597 0 2 0 syz-executor.5
66131 398438 35597 0 2 0x4000480 syz-executor.5
66131 314568 35597 0 2 0x4000480 syz-executor.5
6459 396594 5776 0 2 0x480 syz-executor.0
6459 283372 5776 0 3 0x4000080 fsleep syz-executor.0
97202 429529 39734 0 4 0x582000 syz-executor.3
97202 270001 39734 0 7 0x4582000 syz-executor.3
97202 230251 39734 0 3 0x4502000 suspend syz-executor.3
9000 176113 77195 0 3 0x80 nanoslp syz-executor.6
9000 488564 77195 0 2 0x4000480 syz-executor.6
9000 316717 77195 0 3 0x4000080 fsleep syz-executor.6
9000 501248 77195 0 3 0x4000080 fsleep syz-executor.6
59784 211992 11468 0 4 0x582000 syz-executor.1
*59784 111102 11468 0 7 0x4582000 syz-executor.1
59784 12301 11468 0 3 0x4502000 suspend syz-executor.1
79976 179163 48305 0 2 0x480 syz-executor.2
79976 22979 48305 0 3 0x4000080 netio syz-executor.2
79976 222254 48305 0 3 0x4000080 fsleep syz-executor.2
79955 55442 45856 0 2 0x480 syz-executor.7
79955 189899 45856 0 3 0x4000080 kqsel syz-executor.7
79955 385037 45856 0 3 0x4000080 fsleep syz-executor.7
48305 61214 71695 0 2 0x482 syz-executor.2
45856 456708 71695 0 2 0x482 syz-executor.7
35597 449431 71695 0 3 0x82 nanoslp syz-executor.5
5776 125338 71695 0 3 0x82 nanoslp syz-executor.0
4098 72971 0 0 3 0x14200 bored sosplice
72896 92715 0 0 3 0x14200 acct acct
77195 484604 71695 0 2 0x482 syz-executor.6
39734 77313 71695 0 2 0x482 syz-executor.3
11468 132388 71695 0 2 0x482 syz-executor.1
71695 274421 34820 0 3 0x2000082 thrsleep syz-fuzzer
71695 20940 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 251045 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 48531 34820 0 3 0x6000082 wait syz-fuzzer
71695 270285 34820 0 3 0x6000082 wait syz-fuzzer
71695 244900 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 420165 34820 0 3 0x6000082 wait syz-fuzzer
71695 374855 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 444653 34820 0 3 0x6000082 kqread syz-fuzzer
71695 79428 34820 0 3 0x6000082 wait syz-fuzzer
71695 67884 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 13820 34820 0 3 0x6000082 wait syz-fuzzer
71695 195991 34820 0 3 0x6000082 wait syz-fuzzer
71695 289874 34820 0 3 0x6000082 wait syz-fuzzer
71695 268182 34820 0 2 0x6000002 syz-fuzzer
71695 178517 34820 0 3 0x6000082 thrsleep syz-fuzzer
34820 393144 47092 0 3 0x10008a sigsusp ksh
47092 48906 2263 0 3 0x9a kqread sshd
79406 284159 1 0 3 0x100083 ttyin getty
2263 217769 1 0 3 0x88 kqread sshd
73136 50570 21060 74 3 0x1100092 bpf pflogd
21060 277720 1 0 3 0x80 netio pflogd
5105 341847 75076 73 3 0x1100090 kqread syslogd
75076 116917 1 0 3 0x100082 netio syslogd
81463 325562 1 0 3 0x100080 kqread resolvd
23009 219704 29080 77 3 0x100092 kqread dhcpleased
28355 521510 29080 77 3 0x100092 kqread dhcpleased
29080 495953 1 0 3 0x80 kqread dhcpleased
57029 482118 0 0 3 0x14200 bored smr
50746 336182 0 0 3 0x14200 pgzero zerothread
27336 441501 0 0 3 0x14200 aiodoned aiodoned
62047 429953 0 0 3 0x14200 syncer update
59444 342745 0 0 3 0x14200 cleaner cleaner
91905 488521 0 0 3 0x14200 reaper reaper
94470 379511 0 0 3 0x14200 pgdaemon pagedaemon
68873 101285 0 0 3 0x14200 bored viomb
88966 94929 0 0 3 0x40014200 acpi0 acpi0
6587 367655 0 0 3 0x40014200 idle1
24959 435184 0 0 3 0x14200 bored softnet3
16727 204392 0 0 3 0x14200 bored softnet2
48488 323645 0 0 3 0x14200 bored softnet1
5990 60069 0 0 3 0x14200 bored softnet0
61864 210641 0 0 3 0x14200 bored systqmp
13279 170529 0 0 3 0x14200 bored systq
54047 476367 0 0 3 0x14200 tmoslp softclockmp
61919 436499 0 0 3 0x40014200 tmoslp softclock
30162 241078 0 0 3 0x40014200 idle0
1 71090 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 59784 (syz-executor.1) thread 0xffff80002a20a540 (111102)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dbf8d0)
#0 witness_lock+0x447
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x46f sys/kern/sched_bsd.c:470
#3 sleep_finish+0x19b sys/kern/kern_synch.c:414
#4 rw_enter+0x341 sys/kern/kern_rwlock.c:285
#5 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#6 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#7 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#8 vget+0x200 sys/kern/vfs_subr.c:676
#9 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#10 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
#11 ufs_lookup+0x10a3 sys/ufs/ufs/ufs_lookup.c:555
#12 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#13 unveil_find_cover+0x130 sys/kern/kern_unveil.c:277
#14 unveil_add_vnode+0xb7 sys/kern/kern_unveil.c:391
#15 unveil_add+0x2ef sys/kern/kern_unveil.c:494
#16 sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
#17 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#17 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#18 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10189 6479K 6945K 166960K 14344 0
pcb 15 15K 17K 166960K 325 0
rtable 199 14K 16K 166960K 762 0
pf 30 9K 10K 166960K 73 0
ifaddr 38 14K 15K 166960K 89 0
ifgroup 51 2K 2K 166960K 113 0
sysctl 3 0K 0K 166960K 3 0
counters 62 36K 36K 166960K 90 0
ioctlops 0 0K 4K 166960K 1632 0
iov 0 0K 18K 166960K 322 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1344 84K 84K 166960K 2656 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 61 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 574 0
dirhash 12 2K 2K 166960K 24 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 16 57K 89K 166960K 2832 0
sigio 0 0K 0K 166960K 147 0
proc 70 91K 115K 166960K 1012 0
subproc 91 5K 6K 166960K 226 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 215 0
in_multi 77 5K 7K 166960K 240 0
ether_multi 1 0K 0K 166960K 5 0
mrt 1 0K 0K 166960K 4 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 73 334K 334K 166960K 73 0
exec 0 0K 1K 166960K 702 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 392 226K 235K 166960K 29931 0
UVM aobj 131 4K 4K 166960K 131 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 80 0
NDP 11 0K 2K 166960K 59 0
temp 69 6767K 6890K 166960K 19537 0
kqueue 13 20K 26K 166960K 262 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 120 151 0 148 1 0 1 1 0 8 0
rtentry 112 230 0 142 4 0 4 4 0 8 0
unpcb 144 1716 0 1699 22 19 3 6 0 8 2
syncache 320 36 0 36 6 5 1 1 0 8 1
sackhl 24 3 0 3 2 2 0 1 0 8 0
tcpqe 32 113 0 113 4 4 0 1 0 8 0
tcpcb 808 615 0 603 18 15 3 9 0 8 0
arp 120 41 0 27 1 0 1 1 0 8 0
inpcb 376 1979 0 1963 39 33 6 16 0 8 3
nd6 136 52 0 34 1 0 1 1 0 8 0
pkpcb 40 15 0 15 2 2 0 1 0 8 0
kcovpl 48 17 0 10 1 0 1 1 0 8 0
pffrag 232 30 0 28 1 0 1 1 0 482 0
pffrnode 88 30 0 28 1 0 1 1 0 8 0
pffrent 40 66 0 64 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 24 127 0 104 1 0 1 1 0 8 0
pfstkey 128 127 0 104 2 0 2 2 0 8 0
pfstate 376 127 0 104 5 2 3 4 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 871 0 503 35 7 28 29 0 8 0
art_table 32 872 0 503 4 0 4 4 0 8 0
art_node 16 223 0 143 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0
semapl 112 572 0 562 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 25 0 8 3 0 3 3 0 8 0
dino2pl 256 5154 0 3708 92 0 92 92 0 8 0
ffsino 272 5154 0 3708 98 0 98 98 0 8 0
nchpl 144 9020 0 7373 64 0 64 64 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 30371 0 30367 3 2 1 2 0 8 0
percpumem 16 59 0 14 1 0 1 1 0 8 0
vcpupl 2048 10 0 0 2 0 2 2 0 8 0
vmpool 696 14 0 4 1 0 1 1 0 8 0
kstatmem 264 50 0 28 2 0 2 2 0 8 0
scxspl 216 34253 0 34253 16 15 1 8 1 8 1
plimitpl 152 267 0 249 1 0 1 1 0 8 0
sigapl 424 3137 0 3088 8 2 6 7 0 8 0
futexpl 64 21192 0 21187 1 0 1 1 0 8 0
knotepl 120 376 0 0 11 0 11 11 0 8 0
kqueuepl 216 655 0 645 15 14 1 5 0 8 0
pipepl 320 541 0 514 14 11 3 8 0 8 0
fdescpl 496 3117 0 3088 10 6 4 5 0 8 0
filepl 152 16903 0 16671 39 26 13 17 0 8 2
lockfpl 104 759 0 757 2 0 2 2 0 8 1
lockfspl 48 242 0 240 1 0 1 1 0 8 0
sessionpl 144 33 0 17 1 0 1 1 0 8 0
pgrppl 48 46 0 30 1 0 1 1 0 8 0
ucredpl 104 2679 0 2667 1 0 1 1 0 8 0
zombiepl 144 3088 0 3088 1 0 1 1 0 8 1
processpl 1136 3137 0 3088 4 0 4 4 0 8 0
procpl 680 7804 0 7726 10 2 8 8 0 8 1
srpgc 96 17 0 17 6 5 1 1 0 8 1
sosppl 168 59 0 59 5 4 1 1 0 8 1
sockpl 584 3906 0 3870 43 37 6 14 0 8 2
mcl64k 65536 13 0 0 2 0 2 2 0 8 0
mcl16k 16384 11 0 0 2 0 2 2 0 8 0
mcl12k 12288 10 0 0 1 0 1 1 0 8 0
mcl9k 9216 7 0 0 1 0 1 1 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 17 0 0 3 0 3 3 0 8 0
mcl2k2 2112 5 0 0 1 0 1 1 0 8 0
mcl2k 2048 286 0 0 31 2 29 31 0 8 0
mtagpl 96 230 0 0 5 0 5 5 0 8 0
mbufpl 256 1002 0 0 56 0 56 56 0 8 0
bufpl 280 8208 0 1891 452 0 452 452 0 8 0
anonpl 24 428482 0 413751 118 27 91 111 0 186 0
amapchunkpl 152 94289 0 93328 43 2 41 42 0 158 0
amappl16 200 9690 0 9257 40 15 25 35 0 8 0
amappl15 192 29 0 28 1 0 1 1 0 8 0
amappl14 184 192 0 178 2 1 1 2 0 8 0
amappl13 176 13 0 13 2 2 0 1 0 8 0
amappl12 168 3992 0 3956 4 2 2 3 0 8 0
amappl11 160 72 0 58 1 0 1 1 0 8 0
amappl10 152 40 0 32 2 1 1 1 0 8 0
amappl9 144 220 0 219 1 0 1 1 0 8 0
amappl8 136 327 0 248 3 0 3 3 0 8 0
amappl7 128 204 0 177 2 0 2 2 0 8 0
amappl6 120 428 0 418 1 0 1 1 0 8 0
amappl5 112 188 0 177 1 0 1 1 0 8 0
amappl4 104 584 0 554 2 1 1 2 0 8 0
amappl3 96 18797 0 18697 4 1 3 3 0 8 0
amappl2 88 3692 0 3614 3 1 2 3 0 8 0
amappl1 80 20007 0 19451 24 11 13 23 0 8 0
amappl 88 29230 0 28966 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 3131 0 3092 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3131 0 3092 1 0 1 1 0 8 0
vmmpekpl 168 27447 0 27371 4 0 4 4 0 8 0
vmmpepl 168 207433 0 204997 183 70 113 133 0 357 0
vmsppl 448 3130 0 3092 7 2 5 5 0 8 0
rwobjpl 56 61600 0 53974 113 4 109 109 0 8 0
pdppl 4096 6269 0 6194 281 202 79 81 0 8 4
pvpl 32 43661 0 0 354 1 353 353 0 265 0
pmappl 248 3130 0 3092 4 1 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 693 0 271 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: -5
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82dbf6c8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414
rw_enter(fffffd806f2775d8,1) at rw_enter+0x341 sys/kern/kern_rwlock.c:285
rrw_enter(fffffd806f2775d8,1) at rrw_enter+0x8c sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806f0e5c00,1) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
vn_lock(fffffd806f0e5c00,1) at vn_lock+0x84 sys/kern/vfs_vnops.c:564
vget(fffffd806f0e5c00,1) at vget+0x200 sys/kern/vfs_subr.c:676
ufs_ihashget(400,caa0) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
ffs_vget(ffff8000006d2400,caa0,ffff80002f31e2e8) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
end trace frame: 0xffff80002f31e370, count: 0
ddb{1}> trace
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82dbf6c8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414
rw_enter(fffffd806f2775d8,1) at rw_enter+0x341 sys/kern/kern_rwlock.c:285
rrw_enter(fffffd806f2775d8,1) at rrw_enter+0x8c sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806f0e5c00,1) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
vn_lock(fffffd806f0e5c00,1) at vn_lock+0x84 sys/kern/vfs_vnops.c:564
vget(fffffd806f0e5c00,1) at vget+0x200 sys/kern/vfs_subr.c:676
ufs_ihashget(400,caa0) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
ffs_vget(ffff8000006d2400,caa0,ffff80002f31e2e8) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
ufs_lookup() at ufs_lookup+0x10a3 sys/ufs/ufs/ufs_lookup.c:555
VOP_LOOKUP(fffffd80679931d0,ffff80002f31e458,ffff80002f31e3f8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
unveil_find_cover(fffffd8067ac00e8,ffff80002a243558) at unveil_find_cover+0x130 sys/kern/kern_unveil.c:277
unveil_add_vnode(ffff80002a243558,fffffd8067ac00e8) at unveil_add_vnode+0xb7 sys/kern/kern_unveil.c:391
unveil_add(ffff80002a243558,ffff80002f31e608,ffff80002f31e6c3) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a243558,ffff80002f31e7f0,ffff80002f31e740) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f31e7f0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f31e7f0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xeb2736d2f80, count: -22
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 12afce1bef21 sync
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=131effc8180000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=2dc91447bed11760d7e1
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/30864298f0ca/disk-12afce1b.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/8ab609aa020d/bsd-12afce1b.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8654f200c166/kernel-12afce1b.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2dc914...@syzkaller.appspotmail.com
uvm_fault(0xffffffff82db9a98, 0xffff800000e7d008, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at unveil_add_vnode+0xbb: movq %rax,0x8(%r13,%rbx,1)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
270001 97202 0 0x502000 0x4080000 1 syz-executor.3
*111102 59784 0 0x502000 0x4080000 0K syz-executor.1
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: 10
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: uvm_fault(0xffffffff82db9a98, 0xffff800000e7d008, 0, 2) -> e
ddb{0}> trace
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: -5
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002f938bb0
rbx 0
rdx 0
rcx 0xffff80002a20a540
rax 0xffffffffffffffff
r8 0x30
r9 0xfffffd807f7d7410
r10 0xaa6899314bd1b0fe
r11 0x329f41ce542be6ca
r12 0xfffffd80663940f0
r13 0xffff800000e7d000
r14 0xffff8000ffff4d60
r15 0
rip 0xffffffff8237ae6b unveil_add_vnode+0xbb
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002f938b30
ss 0
unveil_add_vnode+0xbb: movq %rax,0x8(%r13,%rbx,1)
ddb{0}> show proc
PROC (syz-executor.1) tid=111102 pid=59784 tcnt=3 stat=onproc
flags process=502000<SINGLEUNWIND,PLEDGE,EXECPLEDGE> proc=4080000<SUSPSINGLE,THREAD>
runpri=32, usrpri=84, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80002a2432b0
forw=0xffffffffffffffff, list=0xffff80002a209ff0,0xffff80002a2432c0
process=0xffff8000ffff4d60 user=0xffff80002f933000, vmspace=0xfffffd806b890718
estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
66131 357980 35597 0 2 0 syz-executor.5
66131 398438 35597 0 2 0x4000480 syz-executor.5
66131 314568 35597 0 2 0x4000480 syz-executor.5
6459 396594 5776 0 2 0x480 syz-executor.0
6459 283372 5776 0 3 0x4000080 fsleep syz-executor.0
97202 429529 39734 0 4 0x582000 syz-executor.3
97202 270001 39734 0 7 0x4582000 syz-executor.3
97202 230251 39734 0 3 0x4502000 suspend syz-executor.3
9000 176113 77195 0 3 0x80 nanoslp syz-executor.6
9000 488564 77195 0 2 0x4000480 syz-executor.6
9000 316717 77195 0 3 0x4000080 fsleep syz-executor.6
9000 501248 77195 0 3 0x4000080 fsleep syz-executor.6
59784 211992 11468 0 4 0x582000 syz-executor.1
*59784 111102 11468 0 7 0x4582000 syz-executor.1
59784 12301 11468 0 3 0x4502000 suspend syz-executor.1
79976 179163 48305 0 2 0x480 syz-executor.2
79976 22979 48305 0 3 0x4000080 netio syz-executor.2
79976 222254 48305 0 3 0x4000080 fsleep syz-executor.2
79955 55442 45856 0 2 0x480 syz-executor.7
79955 189899 45856 0 3 0x4000080 kqsel syz-executor.7
79955 385037 45856 0 3 0x4000080 fsleep syz-executor.7
48305 61214 71695 0 2 0x482 syz-executor.2
45856 456708 71695 0 2 0x482 syz-executor.7
35597 449431 71695 0 3 0x82 nanoslp syz-executor.5
5776 125338 71695 0 3 0x82 nanoslp syz-executor.0
4098 72971 0 0 3 0x14200 bored sosplice
72896 92715 0 0 3 0x14200 acct acct
77195 484604 71695 0 2 0x482 syz-executor.6
39734 77313 71695 0 2 0x482 syz-executor.3
11468 132388 71695 0 2 0x482 syz-executor.1
71695 274421 34820 0 3 0x2000082 thrsleep syz-fuzzer
71695 20940 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 251045 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 48531 34820 0 3 0x6000082 wait syz-fuzzer
71695 270285 34820 0 3 0x6000082 wait syz-fuzzer
71695 244900 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 420165 34820 0 3 0x6000082 wait syz-fuzzer
71695 374855 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 444653 34820 0 3 0x6000082 kqread syz-fuzzer
71695 79428 34820 0 3 0x6000082 wait syz-fuzzer
71695 67884 34820 0 3 0x6000082 thrsleep syz-fuzzer
71695 13820 34820 0 3 0x6000082 wait syz-fuzzer
71695 195991 34820 0 3 0x6000082 wait syz-fuzzer
71695 289874 34820 0 3 0x6000082 wait syz-fuzzer
71695 268182 34820 0 2 0x6000002 syz-fuzzer
71695 178517 34820 0 3 0x6000082 thrsleep syz-fuzzer
34820 393144 47092 0 3 0x10008a sigsusp ksh
47092 48906 2263 0 3 0x9a kqread sshd
79406 284159 1 0 3 0x100083 ttyin getty
2263 217769 1 0 3 0x88 kqread sshd
73136 50570 21060 74 3 0x1100092 bpf pflogd
21060 277720 1 0 3 0x80 netio pflogd
5105 341847 75076 73 3 0x1100090 kqread syslogd
75076 116917 1 0 3 0x100082 netio syslogd
81463 325562 1 0 3 0x100080 kqread resolvd
23009 219704 29080 77 3 0x100092 kqread dhcpleased
28355 521510 29080 77 3 0x100092 kqread dhcpleased
29080 495953 1 0 3 0x80 kqread dhcpleased
57029 482118 0 0 3 0x14200 bored smr
50746 336182 0 0 3 0x14200 pgzero zerothread
27336 441501 0 0 3 0x14200 aiodoned aiodoned
62047 429953 0 0 3 0x14200 syncer update
59444 342745 0 0 3 0x14200 cleaner cleaner
91905 488521 0 0 3 0x14200 reaper reaper
94470 379511 0 0 3 0x14200 pgdaemon pagedaemon
68873 101285 0 0 3 0x14200 bored viomb
88966 94929 0 0 3 0x40014200 acpi0 acpi0
6587 367655 0 0 3 0x40014200 idle1
24959 435184 0 0 3 0x14200 bored softnet3
16727 204392 0 0 3 0x14200 bored softnet2
48488 323645 0 0 3 0x14200 bored softnet1
5990 60069 0 0 3 0x14200 bored softnet0
61864 210641 0 0 3 0x14200 bored systqmp
13279 170529 0 0 3 0x14200 bored systq
54047 476367 0 0 3 0x14200 tmoslp softclockmp
61919 436499 0 0 3 0x40014200 tmoslp softclock
30162 241078 0 0 3 0x40014200 idle0
1 71090 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 59784 (syz-executor.1) thread 0xffff80002a20a540 (111102)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82dbf8d0)
#0 witness_lock+0x447
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x46f sys/kern/sched_bsd.c:470
#3 sleep_finish+0x19b sys/kern/kern_synch.c:414
#4 rw_enter+0x341 sys/kern/kern_rwlock.c:285
#5 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#6 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#7 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#8 vget+0x200 sys/kern/vfs_subr.c:676
#9 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#10 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
#11 ufs_lookup+0x10a3 sys/ufs/ufs/ufs_lookup.c:555
#12 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#13 unveil_find_cover+0x130 sys/kern/kern_unveil.c:277
#14 unveil_add_vnode+0xb7 sys/kern/kern_unveil.c:391
#15 unveil_add+0x2ef sys/kern/kern_unveil.c:494
#16 sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
#17 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#17 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#18 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10189 6479K 6945K 166960K 14344 0
pcb 15 15K 17K 166960K 325 0
rtable 199 14K 16K 166960K 762 0
pf 30 9K 10K 166960K 73 0
ifaddr 38 14K 15K 166960K 89 0
ifgroup 51 2K 2K 166960K 113 0
sysctl 3 0K 0K 166960K 3 0
counters 62 36K 36K 166960K 90 0
ioctlops 0 0K 4K 166960K 1632 0
iov 0 0K 18K 166960K 322 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1344 84K 84K 166960K 2656 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 61 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 574 0
dirhash 12 2K 2K 166960K 24 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 16 57K 89K 166960K 2832 0
sigio 0 0K 0K 166960K 147 0
proc 70 91K 115K 166960K 1012 0
subproc 91 5K 6K 166960K 226 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 215 0
in_multi 77 5K 7K 166960K 240 0
ether_multi 1 0K 0K 166960K 5 0
mrt 1 0K 0K 166960K 4 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 73 334K 334K 166960K 73 0
exec 0 0K 1K 166960K 702 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 392 226K 235K 166960K 29931 0
UVM aobj 131 4K 4K 166960K 131 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 80 0
NDP 11 0K 2K 166960K 59 0
temp 69 6767K 6890K 166960K 19537 0
kqueue 13 20K 26K 166960K 262 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 120 151 0 148 1 0 1 1 0 8 0
rtentry 112 230 0 142 4 0 4 4 0 8 0
unpcb 144 1716 0 1699 22 19 3 6 0 8 2
syncache 320 36 0 36 6 5 1 1 0 8 1
sackhl 24 3 0 3 2 2 0 1 0 8 0
tcpqe 32 113 0 113 4 4 0 1 0 8 0
tcpcb 808 615 0 603 18 15 3 9 0 8 0
arp 120 41 0 27 1 0 1 1 0 8 0
inpcb 376 1979 0 1963 39 33 6 16 0 8 3
nd6 136 52 0 34 1 0 1 1 0 8 0
pkpcb 40 15 0 15 2 2 0 1 0 8 0
kcovpl 48 17 0 10 1 0 1 1 0 8 0
pffrag 232 30 0 28 1 0 1 1 0 482 0
pffrnode 88 30 0 28 1 0 1 1 0 8 0
pffrent 40 66 0 64 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 24 127 0 104 1 0 1 1 0 8 0
pfstkey 128 127 0 104 2 0 2 2 0 8 0
pfstate 376 127 0 104 5 2 3 4 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 871 0 503 35 7 28 29 0 8 0
art_table 32 872 0 503 4 0 4 4 0 8 0
art_node 16 223 0 143 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0
semapl 112 572 0 562 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 25 0 8 3 0 3 3 0 8 0
dino2pl 256 5154 0 3708 92 0 92 92 0 8 0
ffsino 272 5154 0 3708 98 0 98 98 0 8 0
nchpl 144 9020 0 7373 64 0 64 64 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 30371 0 30367 3 2 1 2 0 8 0
percpumem 16 59 0 14 1 0 1 1 0 8 0
vcpupl 2048 10 0 0 2 0 2 2 0 8 0
vmpool 696 14 0 4 1 0 1 1 0 8 0
kstatmem 264 50 0 28 2 0 2 2 0 8 0
scxspl 216 34253 0 34253 16 15 1 8 1 8 1
plimitpl 152 267 0 249 1 0 1 1 0 8 0
sigapl 424 3137 0 3088 8 2 6 7 0 8 0
futexpl 64 21192 0 21187 1 0 1 1 0 8 0
knotepl 120 376 0 0 11 0 11 11 0 8 0
kqueuepl 216 655 0 645 15 14 1 5 0 8 0
pipepl 320 541 0 514 14 11 3 8 0 8 0
fdescpl 496 3117 0 3088 10 6 4 5 0 8 0
filepl 152 16903 0 16671 39 26 13 17 0 8 2
lockfpl 104 759 0 757 2 0 2 2 0 8 1
lockfspl 48 242 0 240 1 0 1 1 0 8 0
sessionpl 144 33 0 17 1 0 1 1 0 8 0
pgrppl 48 46 0 30 1 0 1 1 0 8 0
ucredpl 104 2679 0 2667 1 0 1 1 0 8 0
zombiepl 144 3088 0 3088 1 0 1 1 0 8 1
processpl 1136 3137 0 3088 4 0 4 4 0 8 0
procpl 680 7804 0 7726 10 2 8 8 0 8 1
srpgc 96 17 0 17 6 5 1 1 0 8 1
sosppl 168 59 0 59 5 4 1 1 0 8 1
sockpl 584 3906 0 3870 43 37 6 14 0 8 2
mcl64k 65536 13 0 0 2 0 2 2 0 8 0
mcl16k 16384 11 0 0 2 0 2 2 0 8 0
mcl12k 12288 10 0 0 1 0 1 1 0 8 0
mcl9k 9216 7 0 0 1 0 1 1 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 17 0 0 3 0 3 3 0 8 0
mcl2k2 2112 5 0 0 1 0 1 1 0 8 0
mcl2k 2048 286 0 0 31 2 29 31 0 8 0
mtagpl 96 230 0 0 5 0 5 5 0 8 0
mbufpl 256 1002 0 0 56 0 56 56 0 8 0
bufpl 280 8208 0 1891 452 0 452 452 0 8 0
anonpl 24 428482 0 413751 118 27 91 111 0 186 0
amapchunkpl 152 94289 0 93328 43 2 41 42 0 158 0
amappl16 200 9690 0 9257 40 15 25 35 0 8 0
amappl15 192 29 0 28 1 0 1 1 0 8 0
amappl14 184 192 0 178 2 1 1 2 0 8 0
amappl13 176 13 0 13 2 2 0 1 0 8 0
amappl12 168 3992 0 3956 4 2 2 3 0 8 0
amappl11 160 72 0 58 1 0 1 1 0 8 0
amappl10 152 40 0 32 2 1 1 1 0 8 0
amappl9 144 220 0 219 1 0 1 1 0 8 0
amappl8 136 327 0 248 3 0 3 3 0 8 0
amappl7 128 204 0 177 2 0 2 2 0 8 0
amappl6 120 428 0 418 1 0 1 1 0 8 0
amappl5 112 188 0 177 1 0 1 1 0 8 0
amappl4 104 584 0 554 2 1 1 2 0 8 0
amappl3 96 18797 0 18697 4 1 3 3 0 8 0
amappl2 88 3692 0 3614 3 1 2 3 0 8 0
amappl1 80 20007 0 19451 24 11 13 23 0 8 0
amappl 88 29230 0 28966 7 0 7 7 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 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 3131 0 3092 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3131 0 3092 1 0 1 1 0 8 0
vmmpekpl 168 27447 0 27371 4 0 4 4 0 8 0
vmmpepl 168 207433 0 204997 183 70 113 133 0 357 0
vmsppl 448 3130 0 3092 7 2 5 5 0 8 0
rwobjpl 56 61600 0 53974 113 4 109 109 0 8 0
pdppl 4096 6269 0 6194 281 202 79 81 0 8 4
pvpl 32 43661 0 0 354 1 353 353 0 265 0
pmappl 248 3130 0 3092 4 1 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 693 0 271 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
unveil_add_vnode(ffff80002a20a540,fffffd80663940f0) at unveil_add_vnode+0xbb sys/kern/kern_unveil.c:391
unveil_add(ffff80002a20a540,ffff80002f938c88,ffff80002f938d43) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a20a540,ffff80002f938e70,ffff80002f938dc0) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f938e70) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f938e70) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xb0d6661000, count: -5
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82dbf6c8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414
rw_enter(fffffd806f2775d8,1) at rw_enter+0x341 sys/kern/kern_rwlock.c:285
rrw_enter(fffffd806f2775d8,1) at rrw_enter+0x8c sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806f0e5c00,1) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
vn_lock(fffffd806f0e5c00,1) at vn_lock+0x84 sys/kern/vfs_vnops.c:564
vget(fffffd806f0e5c00,1) at vget+0x200 sys/kern/vfs_subr.c:676
ufs_ihashget(400,caa0) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
ffs_vget(ffff8000006d2400,caa0,ffff80002f31e2e8) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
end trace frame: 0xffff80002f31e370, count: 0
ddb{1}> trace
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e 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+0x27
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82dbf6c8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82dbf6c8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470
sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414
rw_enter(fffffd806f2775d8,1) at rw_enter+0x341 sys/kern/kern_rwlock.c:285
rrw_enter(fffffd806f2775d8,1) at rrw_enter+0x8c sys/kern/kern_rwlock.c:464
VOP_LOCK(fffffd806f0e5c00,1) at VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
vn_lock(fffffd806f0e5c00,1) at vn_lock+0x84 sys/kern/vfs_vnops.c:564
vget(fffffd806f0e5c00,1) at vget+0x200 sys/kern/vfs_subr.c:676
ufs_ihashget(400,caa0) at ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
ffs_vget(ffff8000006d2400,caa0,ffff80002f31e2e8) at ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1201
ufs_lookup() at ufs_lookup+0x10a3 sys/ufs/ufs/ufs_lookup.c:555
VOP_LOOKUP(fffffd80679931d0,ffff80002f31e458,ffff80002f31e3f8) at VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
unveil_find_cover(fffffd8067ac00e8,ffff80002a243558) at unveil_find_cover+0x130 sys/kern/kern_unveil.c:277
unveil_add_vnode(ffff80002a243558,fffffd8067ac00e8) at unveil_add_vnode+0xb7 sys/kern/kern_unveil.c:391
unveil_add(ffff80002a243558,ffff80002f31e608,ffff80002f31e6c3) at unveil_add+0x2ef sys/kern/kern_unveil.c:494
sys_unveil(ffff80002a243558,ffff80002f31e7f0,ffff80002f31e740) at sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023
syscall(ffff80002f31e7f0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002f31e7f0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xeb2736d2f80, count: -22
---
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