panic: amap_pp_adjref: negative reference count
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syzbot
Oct 3, 2019, 3:44:08 AM10/3/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: c722278f thinko in previous; spotted by Mantas Mikulėnas
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1005622b600000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=27cfad3394f34528cbec
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+27cfad...@syzkaller.appspotmail.com
panic: amap_pp_adjref: negative reference count
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*461776 42007 0 0 0x4000000 0K syz-executor.0
194660 53943 0 0x2 0 1 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd8065d46008,1f0,fef,1) at amap_pp_adjref+0x59e
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff800000b07600,0,fef000,1f0000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3729
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3763 [inline]
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3664
vm_impl_init_vmx(ffff800021b4ba28,ffff800020ab0ee8) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385
[inline]
vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd806e46da90,c5005601,ffff800000aba000,1,fffffd807f7c6a20,ffff800020ab0ee8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd80669a5bf8,c5005601,ffff800000aba000,ffff800020ab0ee8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff800020ab0ee8,ffff800021f811f8,ffff800021f81240) at
sys_ioctl+0x5b9
syscall(ffff800021f812c0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800021f812c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff59,0,3,5062748a0e0) at Xsyscall+0x128
end of kernel
end trace frame: 0x508a29769e0, count: 3
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
amap_pp_adjref: negative reference count
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd8065d46008,1f0,fef,1) at amap_pp_adjref+0x59e
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff800000b07600,0,fef000,1f0000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3729
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3763 [inline]
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3664
vm_impl_init_vmx(ffff800021b4ba28,ffff800020ab0ee8) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385
[inline]
vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd806e46da90,c5005601,ffff800000aba000,1,fffffd807f7c6a20,ffff800020ab0ee8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd80669a5bf8,c5005601,ffff800000aba000,ffff800020ab0ee8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff800020ab0ee8,ffff800021f811f8,ffff800021f81240) at
sys_ioctl+0x5b9
syscall(ffff800021f812c0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800021f812c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff59,0,3,5062748a0e0) at Xsyscall+0x128
end of kernel
end trace frame: 0x508a29769e0, count: -12
ddb{0}> show registers
rdi 0
rsi 0x3ffff acpi_pdirpa+0x2be67
rbp 0xffff800021f80b50
rbx 0xffff800021f80c00
rdx 0x40000 acpi_pdirpa+0x2be68
rcx 0xffff800021d72000
rax 0xffff800000a81dc0
r8 0xffffffff81186cff kprintf+0x16f
r9 0x1
r10 0x25
r11 0xfc895cfbcea22892
r12 0x3000000008
r13 0xffff800021f80b60
r14 0x100
r15 0x1
rip 0xffffffff819807c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800021f80b40
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=461776 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020ab09f8,0xffffffff826330d0
process=0xffff800020adc380 user=0xffff800021f7c000,
vmspace=0xfffffd807f00ba10
estcpu=36, cpticks=34, pctcpu=20.28
user=0, sys=18127, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
42007 296627 58905 0 2 0 syz-executor.0
42007 399537 58905 0 3 0x4000080 fsleep syz-executor.0
*42007 461776 58905 0 7 0x4000000 syz-executor.0
53943 194660 42359 0 7 0x2 syz-executor.1
44937 173804 1 0 3 0x100083 ttyin getty
58905 260464 42359 0 2 0x482 syz-executor.0
6632 153126 0 0 2 0x14600 acct
66130 334698 0 0 3 0x14200 bored sosplice
42359 415691 84604 0 3 0x82 thrsleep syz-fuzzer
42359 265408 84604 0 2 0x4000482 syz-fuzzer
42359 100805 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 154827 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 248892 84604 0 2 0x4000482 syz-fuzzer
42359 15707 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 180457 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 411888 84604 0 3 0x4000082 kqread syz-fuzzer
42359 290603 84604 0 2 0x4000482 syz-fuzzer
42359 409713 84604 0 2 0x4000482 syz-fuzzer
84604 120079 25193 0 3 0x10008a pause ksh
25193 63884 60125 0 3 0x92 select sshd
60125 410098 1 0 3 0x80 select sshd
59615 465386 8430 74 2 0x100492 pflogd
8430 251546 1 0 3 0x80 netio pflogd
22332 261645 21978 73 2 0x100490 syslogd
21978 161357 1 0 3 0x100082 netio syslogd
43132 446938 1 77 3 0x100090 poll dhclient
78708 79390 1 0 3 0x80 poll dhclient
80833 151195 0 0 2 0x14200 zerothread
76683 226845 0 0 3 0x14200 aiodoned aiodoned
41850 258366 0 0 2 0x14200 update
66437 346683 0 0 3 0x14200 cleaner cleaner
89368 128898 0 0 3 0x14200 reaper reaper
59475 363818 0 0 3 0x14200 pgdaemon pagedaemon
15568 446060 0 0 3 0x14200 bored crynlk
60769 520754 0 0 3 0x14200 bored crypto
98402 473511 0 0 3 0x40014200 acpi0 acpi0
15916 5450 0 0 3 0x40014200 idle1
23037 240837 0 0 2 0x14200 softnet
57964 131492 0 0 2 0x14200 systqmp
2224 148178 0 0 3 0x14200 bored systq
28664 177420 0 0 2 0x40014200 softclock
10333 412610 0 0 3 0x40014200 idle0
96274 86650 0 0 3 0x14200 bored smr
1 254910 0 0 3 0x82 wait init
0 0 -1 0 2 0x10200 swapper
ddb{0}> show all locks
Process 42007 (syz-executor.0) thread 0xffff800020ab0ee8 (461776)
shared rwlock vmmaplk r = 0 (0xfffffd807f00ba28)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 uvm_share+0xcf vm_map_lock_read_ln sys/uvm/uvm_map.c:5361 [inline]
#1 uvm_share+0xcf sys/uvm/uvm_map.c:3623
#2 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
#3 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
#3 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
#4 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#5 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#6 sys_ioctl+0x5b9
#7 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#7 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#8 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xffff800000b07618)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 rw_enter+0x447 sys/kern/kern_rwlock.c:306
#2 vm_map_lock_ln+0x10d sys/uvm/uvm_map.c:5339
#3 uvm_share+0xa7 vm_map_lock_read_ln sys/uvm/uvm_map.c:5360 [inline]
#3 uvm_share+0xa7 sys/uvm/uvm_map.c:3623
#4 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
#5 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
#5 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
#6 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#7 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#8 sys_ioctl+0x5b9
#9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#10 Xsyscall+0x128
exclusive rwlock vmlistlock r = 0 (0xffff80000066e478)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 vm_create+0x130 vm_impl_init sys/arch/amd64/amd64/vmm.c:1383 [inline]
#1 vm_create+0x130 sys/arch/amd64/amd64/vmm.c:1174
#2 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#3 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#4 sys_ioctl+0x5b9
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82631ba8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9574 6456K 7104K 78643K 15013 0 0
pcb 13 10K 12K 78643K 451 0 0
rtable 87 12K 15K 78643K 1289 0 0
ifaddr 79 17K 18K 78643K 459 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 1 2K 4K 78643K 1686 0 0
iov 0 0K 24K 78643K 390 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1213 76K 77K 78643K 2997 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 30 0 0
VM map 3 1K 1K 78643K 115 0 0
sem 12 0K 0K 78643K 949 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 5 13K 25K 78643K 2114 0 0
sigio 0 0K 0K 78643K 27 0 0
proc 60 63K 95K 78643K 1088 0 0
subproc 32 2K 2K 78643K 204 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 132 0 0
in_multi 13 0K 2K 78643K 232 0 0
ether_multi 1 0K 0K 78643K 17 0 0
mrt 0 0K 0K 78643K 14 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 72 318K 318K 78643K 72 0 0
exec 0 0K 1K 78643K 519 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 108 38K 38K 78643K 9117 0 0
UVM aobj 100 3K 3K 78643K 102 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 474 0 0
NDP 18 0K 0K 78643K 136 0 0
temp 214 3560K 4200K 78643K 49673 0 0
kqueue 0 0K 0K 78643K 30 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 33 0 28 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 161 0 159 1 0 1 1 0
8 0
rtentry 112 184 0 155 2 0 2 2 0
8 0
unpcb 120 753 0 740 2 1 1 2 0
8 0
syncache 264 7 0 7 4 4 0 1 0
8 0
sackhl 24 1 0 1 1 1 0 1 0
8 0
tcpqe 32 5297 0 5297 1 1 0 1 0
8 0
tcpcb 544 4398 0 4386 14 12 2 3 0
8 1
inpcb 280 6491 0 6474 25 23 2 13 0
8 0
rttmr 72 5 0 5 5 5 0 1 0
8 0
ip6q 72 1 0 1 1 1 0 1 0
8 0
ip6af 40 2 0 2 1 1 0 1 0
8 0
nd6 48 28 0 28 1 0 1 1 0
8 1
pkpcb 40 6 0 6 2 2 0 1 0
8 0
swfcl 56 2 0 0 1 0 1 1 0
8 0
ppxss 1128 55 0 55 6 6 0 1 0
8 0
pffrag 232 40 0 40 11 11 0 1 0
482 0
pffrnode 88 40 0 40 11 11 0 1 0
8 0
pffrent 40 604 0 604 11 11 0 1 0
8 0
pfosfp 40 846 0 423 5 0 5 5 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
pfstitem 24 191 0 159 1 0 1 1 0
8 0
pfstkey 112 191 0 159 2 0 2 2 0
8 0
pfstate 328 191 0 159 5 1 4 5 0
8 0
pfrule 1360 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 256 830 0 692 23 11 12 15 0
8 0
art_table 32 831 0 692 2 0 2 2 0
8 0
art_node 16 183 0 156 1 0 1 1 0
8 0
sysvmsgpl 40 21 0 11 1 0 1 1 0
8 0
semupl 112 1 0 1 1 1 0 1 0
8 0
semapl 112 947 0 937 1 0 1 1 0
8 0
shmpl 112 100 0 2 3 0 3 3 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4633 0 3241 46 0 46 46 0
8 0
ffsino 272 4633 0 3241 95 0 95 95 0
8 0
nchpl 144 7821 0 7351 61 37 24 61 0
8 0
uvmvnodes 72 5906 0 0 108 0 108 108 0
8 0
vnodes 208 5906 0 0 311 0 311 311 0
8 0
namei 1024 25603 0 25603 2 1 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
vmpool 552 113 0 112 10 9 1 1 0
8 0
scsiplug 64 1 0 1 1 1 0 1 0
8 0
scxspl 192 24793 0 24793 18 17 1 7 0
8 1
plimitpl 152 192 0 184 1 0 1 1 0
8 0
sigapl 432 2287 0 2272 3 1 2 3 0
8 0
futexpl 56 45419 0 45418 1 0 1 1 0
8 0
knotepl 112 654 0 635 4 3 1 3 0
8 0
kqueuepl 104 559 0 557 2 1 1 2 0
8 0
pipepl 112 1256 0 1237 6 5 1 2 0
8 0
fdescpl 488 2288 0 2272 3 0 3 3 0
8 0
filepl 152 20263 0 20148 29 24 5 14 0
8 0
lockfpl 104 694 0 693 1 0 1 1 0
8 0
lockfspl 48 243 0 242 1 0 1 1 0
8 0
sessionpl 112 31 0 20 1 0 1 1 0
8 0
pgrppl 48 49 0 38 1 0 1 1 0
8 0
ucredpl 96 2160 0 2151 1 0 1 1 0
8 0
zombiepl 144 2272 0 2272 2 1 1 1 0
8 1
processpl 896 2305 0 2272 4 0 4 4 0
8 0
procpl 632 7750 0 7706 5 0 5 5 0
8 0
srpgc 64 18 0 18 9 9 0 1 0
8 0
sosppl 128 36 0 36 12 12 0 1 0
8 0
sockpl 384 7457 0 7427 42 38 4 22 0
8 1
mcl64k 65536 518 0 0 65 27 38 65 0
8 1
mcl16k 16384 7 0 0 1 0 1 1 0
8 0
mcl12k 12288 14 0 0 2 0 2 2 0
8 0
mcl9k 9216 15 0 0 2 0 2 2 0
8 0
mcl8k 8192 11 0 0 2 0 2 2 0
8 0
mcl4k 4096 17 0 0 3 0 3 3 0
8 0
mcl2k2 2112 4 0 0 1 0 1 1 0
8 0
mcl2k 2048 182 0 0 21 3 18 21 0
8 0
mtagpl 80 34 0 0 1 0 1 1 0
8 0
mbufpl 256 689 0 0 38 0 38 38 0
8 0
bufpl 256 13968 0 6920 441 0 441 441 0
8 0
anonpl 16 257375 0 240602 127 54 73 86 0
124 0
amapchunkpl 152 16982 0 16863 38 31 7 13 0
158 0
amappl16 192 11939 0 10979 114 64 50 60 0
8 0
amappl15 184 9 0 9 2 2 0 1 0
8 0
amappl14 176 351 0 349 2 1 1 1 0
8 0
amappl13 168 129 0 129 2 2 0 1 0
8 0
amappl12 160 7 0 5 1 0 1 1 0
8 0
amappl11 152 858 0 841 1 0 1 1 0
8 0
amappl10 144 210 0 203 1 0 1 1 0
8 0
amappl9 136 1297 0 1291 1 0 1 1 0
8 0
amappl8 128 813 0 789 1 0 1 1 0
8 0
amappl7 120 277 0 268 1 0 1 1 0
8 0
amappl6 112 869 0 853 1 0 1 1 0
8 0
amappl5 104 217 0 204 1 0 1 1 0
8 0
amappl4 96 2595 0 2563 1 0 1 1 0
8 0
amappl3 88 459 0 454 1 0 1 1 0
8 0
amappl2 80 16689 0 16616 3 1 2 3 0
8 0
amappl1 72 61158 0 60722 27 16 11 20 0
8 0
amappl 80 8233 0 8191 2 0 2 2 0
84 0
dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0
8 0
aobjpl 64 101 0 2 2 0 2 2 0
8 0
uaddrrnd 24 2401 0 2272 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 2401 0 2272 1 0 1 1 0
8 0
vmmpekpl 168 22295 0 22258 2 0 2 2 0
8 0
vmmpepl 168 295290 0 293197 314 193 121 133 0 357
22
vmsppl 368 2287 0 2272 2 0 2 2 0
8 0
pdppl 4096 4809 0 4768 7 1 6 6 0
8 0
pvpl 32 707445 0 687432 299 132 167 207 0
265 0
pmappl 232 2400 0 2384 11 9 2 2 0
8 1
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 722 0 58 20 0 20 20 0
8 0
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: c722278f thinko in previous; spotted by Mantas Mikulėnas
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1005622b600000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=27cfad3394f34528cbec
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+27cfad...@syzkaller.appspotmail.com
panic: amap_pp_adjref: negative reference count
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*461776 42007 0 0 0x4000000 0K syz-executor.0
194660 53943 0 0x2 0 1 syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd8065d46008,1f0,fef,1) at amap_pp_adjref+0x59e
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff800000b07600,0,fef000,1f0000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3729
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3763 [inline]
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3664
vm_impl_init_vmx(ffff800021b4ba28,ffff800020ab0ee8) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385
[inline]
vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd806e46da90,c5005601,ffff800000aba000,1,fffffd807f7c6a20,ffff800020ab0ee8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd80669a5bf8,c5005601,ffff800000aba000,ffff800020ab0ee8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff800020ab0ee8,ffff800021f811f8,ffff800021f81240) at
sys_ioctl+0x5b9
syscall(ffff800021f812c0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800021f812c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff59,0,3,5062748a0e0) at Xsyscall+0x128
end of kernel
end trace frame: 0x508a29769e0, count: 3
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
amap_pp_adjref: negative reference count
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd8065d46008,1f0,fef,1) at amap_pp_adjref+0x59e
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff800000b07600,0,fef000,1f0000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3729
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3763 [inline]
uvm_share(ffff800000b07600,0,7,fffffd807f00ba10,20200000,80000000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3664
vm_impl_init_vmx(ffff800021b4ba28,ffff800020ab0ee8) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create() at vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385
[inline]
vm_create() at vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd806e46da90,c5005601,ffff800000aba000,1,fffffd807f7c6a20,ffff800020ab0ee8)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd80669a5bf8,c5005601,ffff800000aba000,ffff800020ab0ee8) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff800020ab0ee8,ffff800021f811f8,ffff800021f81240) at
sys_ioctl+0x5b9
syscall(ffff800021f812c0) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800021f812c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff59,0,3,5062748a0e0) at Xsyscall+0x128
end of kernel
end trace frame: 0x508a29769e0, count: -12
ddb{0}> show registers
rdi 0
rsi 0x3ffff acpi_pdirpa+0x2be67
rbp 0xffff800021f80b50
rbx 0xffff800021f80c00
rdx 0x40000 acpi_pdirpa+0x2be68
rcx 0xffff800021d72000
rax 0xffff800000a81dc0
r8 0xffffffff81186cff kprintf+0x16f
r9 0x1
r10 0x25
r11 0xfc895cfbcea22892
r12 0x3000000008
r13 0xffff800021f80b60
r14 0x100
r15 0x1
rip 0xffffffff819807c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800021f80b40
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=461776 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800020ab09f8,0xffffffff826330d0
process=0xffff800020adc380 user=0xffff800021f7c000,
vmspace=0xfffffd807f00ba10
estcpu=36, cpticks=34, pctcpu=20.28
user=0, sys=18127, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
42007 296627 58905 0 2 0 syz-executor.0
42007 399537 58905 0 3 0x4000080 fsleep syz-executor.0
*42007 461776 58905 0 7 0x4000000 syz-executor.0
53943 194660 42359 0 7 0x2 syz-executor.1
44937 173804 1 0 3 0x100083 ttyin getty
58905 260464 42359 0 2 0x482 syz-executor.0
6632 153126 0 0 2 0x14600 acct
66130 334698 0 0 3 0x14200 bored sosplice
42359 415691 84604 0 3 0x82 thrsleep syz-fuzzer
42359 265408 84604 0 2 0x4000482 syz-fuzzer
42359 100805 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 154827 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 248892 84604 0 2 0x4000482 syz-fuzzer
42359 15707 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 180457 84604 0 3 0x4000082 thrsleep syz-fuzzer
42359 411888 84604 0 3 0x4000082 kqread syz-fuzzer
42359 290603 84604 0 2 0x4000482 syz-fuzzer
42359 409713 84604 0 2 0x4000482 syz-fuzzer
84604 120079 25193 0 3 0x10008a pause ksh
25193 63884 60125 0 3 0x92 select sshd
60125 410098 1 0 3 0x80 select sshd
59615 465386 8430 74 2 0x100492 pflogd
8430 251546 1 0 3 0x80 netio pflogd
22332 261645 21978 73 2 0x100490 syslogd
21978 161357 1 0 3 0x100082 netio syslogd
43132 446938 1 77 3 0x100090 poll dhclient
78708 79390 1 0 3 0x80 poll dhclient
80833 151195 0 0 2 0x14200 zerothread
76683 226845 0 0 3 0x14200 aiodoned aiodoned
41850 258366 0 0 2 0x14200 update
66437 346683 0 0 3 0x14200 cleaner cleaner
89368 128898 0 0 3 0x14200 reaper reaper
59475 363818 0 0 3 0x14200 pgdaemon pagedaemon
15568 446060 0 0 3 0x14200 bored crynlk
60769 520754 0 0 3 0x14200 bored crypto
98402 473511 0 0 3 0x40014200 acpi0 acpi0
15916 5450 0 0 3 0x40014200 idle1
23037 240837 0 0 2 0x14200 softnet
57964 131492 0 0 2 0x14200 systqmp
2224 148178 0 0 3 0x14200 bored systq
28664 177420 0 0 2 0x40014200 softclock
10333 412610 0 0 3 0x40014200 idle0
96274 86650 0 0 3 0x14200 bored smr
1 254910 0 0 3 0x82 wait init
0 0 -1 0 2 0x10200 swapper
ddb{0}> show all locks
Process 42007 (syz-executor.0) thread 0xffff800020ab0ee8 (461776)
shared rwlock vmmaplk r = 0 (0xfffffd807f00ba28)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 uvm_share+0xcf vm_map_lock_read_ln sys/uvm/uvm_map.c:5361 [inline]
#1 uvm_share+0xcf sys/uvm/uvm_map.c:3623
#2 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
#3 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
#3 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
#4 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#5 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#6 sys_ioctl+0x5b9
#7 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#7 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#8 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xffff800000b07618)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 rw_enter+0x447 sys/kern/kern_rwlock.c:306
#2 vm_map_lock_ln+0x10d sys/uvm/uvm_map.c:5339
#3 uvm_share+0xa7 vm_map_lock_read_ln sys/uvm/uvm_map.c:5360 [inline]
#3 uvm_share+0xa7 sys/uvm/uvm_map.c:3623
#4 vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
#5 vm_create+0x1a0 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
#5 vm_create+0x1a0 sys/arch/amd64/amd64/vmm.c:1174
#6 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#7 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#8 sys_ioctl+0x5b9
#9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#10 Xsyscall+0x128
exclusive rwlock vmlistlock r = 0 (0xffff80000066e478)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 vm_create+0x130 vm_impl_init sys/arch/amd64/amd64/vmm.c:1383 [inline]
#1 vm_create+0x130 sys/arch/amd64/amd64/vmm.c:1174
#2 VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#3 vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
#4 sys_ioctl+0x5b9
#5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82631ba8)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555
#2 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9574 6456K 7104K 78643K 15013 0 0
pcb 13 10K 12K 78643K 451 0 0
rtable 87 12K 15K 78643K 1289 0 0
ifaddr 79 17K 18K 78643K 459 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 1 2K 4K 78643K 1686 0 0
iov 0 0K 24K 78643K 390 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1213 76K 77K 78643K 2997 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 5K 78643K 30 0 0
VM map 3 1K 1K 78643K 115 0 0
sem 12 0K 0K 78643K 949 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 5 13K 25K 78643K 2114 0 0
sigio 0 0K 0K 78643K 27 0 0
proc 60 63K 95K 78643K 1088 0 0
subproc 32 2K 2K 78643K 204 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ip_moptions 0 0K 0K 78643K 132 0 0
in_multi 13 0K 2K 78643K 232 0 0
ether_multi 1 0K 0K 78643K 17 0 0
mrt 0 0K 0K 78643K 14 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 72 318K 318K 78643K 72 0 0
exec 0 0K 1K 78643K 519 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 108 38K 38K 78643K 9117 0 0
UVM aobj 100 3K 3K 78643K 102 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 0K 78643K 474 0 0
NDP 18 0K 0K 78643K 136 0 0
temp 214 3560K 4200K 78643K 49673 0 0
kqueue 0 0K 0K 78643K 30 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 33 0 28 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 161 0 159 1 0 1 1 0
8 0
rtentry 112 184 0 155 2 0 2 2 0
8 0
unpcb 120 753 0 740 2 1 1 2 0
8 0
syncache 264 7 0 7 4 4 0 1 0
8 0
sackhl 24 1 0 1 1 1 0 1 0
8 0
tcpqe 32 5297 0 5297 1 1 0 1 0
8 0
tcpcb 544 4398 0 4386 14 12 2 3 0
8 1
inpcb 280 6491 0 6474 25 23 2 13 0
8 0
rttmr 72 5 0 5 5 5 0 1 0
8 0
ip6q 72 1 0 1 1 1 0 1 0
8 0
ip6af 40 2 0 2 1 1 0 1 0
8 0
nd6 48 28 0 28 1 0 1 1 0
8 1
pkpcb 40 6 0 6 2 2 0 1 0
8 0
swfcl 56 2 0 0 1 0 1 1 0
8 0
ppxss 1128 55 0 55 6 6 0 1 0
8 0
pffrag 232 40 0 40 11 11 0 1 0
482 0
pffrnode 88 40 0 40 11 11 0 1 0
8 0
pffrent 40 604 0 604 11 11 0 1 0
8 0
pfosfp 40 846 0 423 5 0 5 5 0
8 0
pfosfpen 112 1428 0 714 21 0 21 21 0
8 0
pfstitem 24 191 0 159 1 0 1 1 0
8 0
pfstkey 112 191 0 159 2 0 2 2 0
8 0
pfstate 328 191 0 159 5 1 4 5 0
8 0
pfrule 1360 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 256 830 0 692 23 11 12 15 0
8 0
art_table 32 831 0 692 2 0 2 2 0
8 0
art_node 16 183 0 156 1 0 1 1 0
8 0
sysvmsgpl 40 21 0 11 1 0 1 1 0
8 0
semupl 112 1 0 1 1 1 0 1 0
8 0
semapl 112 947 0 937 1 0 1 1 0
8 0
shmpl 112 100 0 2 3 0 3 3 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4633 0 3241 46 0 46 46 0
8 0
ffsino 272 4633 0 3241 95 0 95 95 0
8 0
nchpl 144 7821 0 7351 61 37 24 61 0
8 0
uvmvnodes 72 5906 0 0 108 0 108 108 0
8 0
vnodes 208 5906 0 0 311 0 311 311 0
8 0
namei 1024 25603 0 25603 2 1 1 1 0
8 1
percpumem 16 30 0 0 1 0 1 1 0
8 0
vmpool 552 113 0 112 10 9 1 1 0
8 0
scsiplug 64 1 0 1 1 1 0 1 0
8 0
scxspl 192 24793 0 24793 18 17 1 7 0
8 1
plimitpl 152 192 0 184 1 0 1 1 0
8 0
sigapl 432 2287 0 2272 3 1 2 3 0
8 0
futexpl 56 45419 0 45418 1 0 1 1 0
8 0
knotepl 112 654 0 635 4 3 1 3 0
8 0
kqueuepl 104 559 0 557 2 1 1 2 0
8 0
pipepl 112 1256 0 1237 6 5 1 2 0
8 0
fdescpl 488 2288 0 2272 3 0 3 3 0
8 0
filepl 152 20263 0 20148 29 24 5 14 0
8 0
lockfpl 104 694 0 693 1 0 1 1 0
8 0
lockfspl 48 243 0 242 1 0 1 1 0
8 0
sessionpl 112 31 0 20 1 0 1 1 0
8 0
pgrppl 48 49 0 38 1 0 1 1 0
8 0
ucredpl 96 2160 0 2151 1 0 1 1 0
8 0
zombiepl 144 2272 0 2272 2 1 1 1 0
8 1
processpl 896 2305 0 2272 4 0 4 4 0
8 0
procpl 632 7750 0 7706 5 0 5 5 0
8 0
srpgc 64 18 0 18 9 9 0 1 0
8 0
sosppl 128 36 0 36 12 12 0 1 0
8 0
sockpl 384 7457 0 7427 42 38 4 22 0
8 1
mcl64k 65536 518 0 0 65 27 38 65 0
8 1
mcl16k 16384 7 0 0 1 0 1 1 0
8 0
mcl12k 12288 14 0 0 2 0 2 2 0
8 0
mcl9k 9216 15 0 0 2 0 2 2 0
8 0
mcl8k 8192 11 0 0 2 0 2 2 0
8 0
mcl4k 4096 17 0 0 3 0 3 3 0
8 0
mcl2k2 2112 4 0 0 1 0 1 1 0
8 0
mcl2k 2048 182 0 0 21 3 18 21 0
8 0
mtagpl 80 34 0 0 1 0 1 1 0
8 0
mbufpl 256 689 0 0 38 0 38 38 0
8 0
bufpl 256 13968 0 6920 441 0 441 441 0
8 0
anonpl 16 257375 0 240602 127 54 73 86 0
124 0
amapchunkpl 152 16982 0 16863 38 31 7 13 0
158 0
amappl16 192 11939 0 10979 114 64 50 60 0
8 0
amappl15 184 9 0 9 2 2 0 1 0
8 0
amappl14 176 351 0 349 2 1 1 1 0
8 0
amappl13 168 129 0 129 2 2 0 1 0
8 0
amappl12 160 7 0 5 1 0 1 1 0
8 0
amappl11 152 858 0 841 1 0 1 1 0
8 0
amappl10 144 210 0 203 1 0 1 1 0
8 0
amappl9 136 1297 0 1291 1 0 1 1 0
8 0
amappl8 128 813 0 789 1 0 1 1 0
8 0
amappl7 120 277 0 268 1 0 1 1 0
8 0
amappl6 112 869 0 853 1 0 1 1 0
8 0
amappl5 104 217 0 204 1 0 1 1 0
8 0
amappl4 96 2595 0 2563 1 0 1 1 0
8 0
amappl3 88 459 0 454 1 0 1 1 0
8 0
amappl2 80 16689 0 16616 3 1 2 3 0
8 0
amappl1 72 61158 0 60722 27 16 11 20 0
8 0
amappl 80 8233 0 8191 2 0 2 2 0
84 0
dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0
8 0
aobjpl 64 101 0 2 2 0 2 2 0
8 0
uaddrrnd 24 2401 0 2272 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 2401 0 2272 1 0 1 1 0
8 0
vmmpekpl 168 22295 0 22258 2 0 2 2 0
8 0
vmmpepl 168 295290 0 293197 314 193 121 133 0 357
22
vmsppl 368 2287 0 2272 2 0 2 2 0
8 0
pdppl 4096 4809 0 4768 7 1 6 6 0
8 0
pvpl 32 707445 0 687432 299 132 167 207 0
265 0
pmappl 232 2400 0 2384 11 9 2 2 0
8 1
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 722 0 58 20 0 20 20 0
8 0
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Nov 24, 2019, 11:54:10 AM11/24/19
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 978220ac correct return type of sign_extend64()
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15f04326e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=d0fe83f82fe104d4
dashboard link: https://syzkaller.appspot.com/bug?extid=27cfad3394f34528cbec
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1781cbcee00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14a7db5ae00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+27cfad...@syzkaller.appspotmail.com
login: panic: amap_pp_adjref: negative reference count
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff8000006a2400,0,200000,7fc000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3733
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline]
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3668
vm_impl_init_vmx(ffff8000ffff3860,ffff8000ffff4010) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd803a947680,c5005601,ffff800000a65000,1,fffffd803f7c6c00,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8036218a58,c5005601,ffff800000a65000,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff8000148da848,ffff8000148da890) at
sys_ioctl+0x5b9
syscall(ffff8000148da910) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8af0, count: 3
ddb> set $maxwidth = 0
ddb> show panic
amap_pp_adjref: negative reference count
ddb> trace
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff8000006a2400,0,200000,7fc000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3733
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline]
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3668
vm_impl_init_vmx(ffff8000ffff3860,ffff8000ffff4010) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd803a947680,c5005601,ffff800000a65000,1,fffffd803f7c6c00,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8036218a58,c5005601,ffff800000a65000,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff8000148da848,ffff8000148da890) at
sys_ioctl+0x5b9
syscall(ffff8000148da910) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8af0, count: -12
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff8000148da1a0
rbx 0xffff8000148da250
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff8000148da160
r9 0x1
r10 0xa5583dfe5ceec6a4
r11 0x2b07f159e1c94563
r12 0x3000000008
r13 0xffff8000148da1b0
r14 0x100
r15 0x1
rip 0xffffffff812012d8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000148da190
PROC (syz-executor1284) pid=427126 stat=onproc
flags process=2<EXEC> proc=0
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4c68,0xffffffff825a1c50
process=0xffff8000148a2018 user=0xffff8000148d5000,
vmspace=0xfffffd803f011990
estcpu=36, cpticks=94, pctcpu=2.55
user=0, sys=362, intr=0
ddb> ps
90367 44126 19333 0 3 0x10008a pause ksh
19333 281632 7398 0 2 0x12 sshd
88982 307274 1 0 3 0x100083 ttyin getty
7398 280111 1 0 3 0x80 select sshd
21012 206759 47589 73 3 0x100090 kqread syslogd
47589 166148 1 0 3 0x100082 netio syslogd
95255 372560 1 77 3 0x100090 poll dhclient
94034 296357 1 0 3 0x80 poll dhclient
75173 474186 0 0 2 0x14200 zerothread
52991 265656 0 0 3 0x14200 aiodoned aiodoned
15812 341109 0 0 2 0x14200 update
52542 515431 0 0 3 0x14200 cleaner cleaner
95256 29038 0 0 3 0x14200 reaper reaper
26964 307942 0 0 3 0x14200 pgdaemon pagedaemon
33568 296996 0 0 3 0x14200 bored crynlk
86959 139080 0 0 3 0x14200 bored crypto
16373 516327 0 0 3 0x40014200 acpi0 acpi0
96933 37590 0 0 2 0x14200 softnet
30309 460263 0 0 2 0x14200 systqmp
93197 174532 0 0 3 0x14200 bored systq
97761 479780 0 0 2 0x40014200 softclock
27048 27355 0 0 3 0x40014200 idle0
37284 76635 0 0 3 0x14200 bored smr
1 156937 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
pcb 13 8K 8K 78643K 13 0 0
rtable 61 1K 2K 78643K 115 0 0
ifaddr 24 7K 7K 78643K 24 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 1 2K 2K 78643K 14 0 0
VM map 3 0K 0K 78643K 3 0 0
sem 2 0K 0K 78643K 2 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 47 38K 46K 78643K 278 0 0
ether_multi 1 0K 0K 78643K 1 0 0
exec 0 0K 1K 78643K 151 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
temp 21 3519K 3583K 78643K 1687 0 0
8 0
rtpcb 80 15 0 13 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
unpcb 120 27 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 22 0 16 1 0 1 1 0
8 0
8 0
art_table 32 96 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
8 0
ffsino 240 1389 0 15 81 0 81 81 0
8 0
nchpl 144 1576 0 44 57 0 57 57 0
8 0
uvmvnodes 72 1398 0 0 26 0 26 26 0
8 0
vnodes 208 1398 0 0 74 0 74 74 0
8 0
namei 1024 3453 0 3453 1 0 1 1 0
8 1
vmpool 520 1 0 0 1 0 1 1 0
8 0
scxspl 192 2380 0 2380 2 1 1 2 0
8 1
plimitpl 152 13 0 8 1 0 1 1 0
8 0
sigapl 432 175 0 165 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 128 116 0 107 1 0 1 1 0
8 0
fdescpl 424 176 0 165 2 0 2 2 0
8 0
filepl 120 836 0 790 2 0 2 2 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 165 0 165 1 0 1 1 0
8 1
processpl 864 190 0 165 4 0 4 4 0
8 0
procpl 632 190 0 165 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 5765 0 5733 7 1 6 7 0
8 1
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 9858 0 9811 7 2 5 6 0
8 1
bufpl 256 2046 0 240 113 0 113 113 0
8 0
anonpl 16 18942 0 15780 15 2 13 13 0
62 0
amapchunkpl 152 590 0 427 7 0 7 7 0
158 0
amappl16 192 69 0 65 1 0 1 1 0
8 0
amappl14 176 35 0 31 1 0 1 1 0
8 0
amappl12 160 5 0 5 1 0 1 1 0
8 1
amappl11 152 43 0 32 1 0 1 1 0
8 0
amappl10 144 1 0 1 1 1 0 1 0
8 0
amappl9 136 364 0 363 1 0 1 1 0
8 0
amappl8 128 83 0 79 1 0 1 1 0
8 0
amappl7 120 15 0 14 1 0 1 1 0
8 0
amappl6 112 42 0 38 1 0 1 1 0
8 0
amappl5 104 163 0 152 1 0 1 1 0
8 0
amappl4 96 394 0 372 1 0 1 1 0
8 0
amappl3 88 104 0 98 1 0 1 1 0
8 0
amappl2 80 693 0 644 2 0 2 2 0
8 0
amappl1 72 11944 0 11562 16 7 9 16 0
8 0
amappl 80 353 0 333 1 0 1 1 0
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 177 0 165 1 0 1 1 0
8 0
vmmpekpl 168 5295 0 5281 1 0 1 1 0
8 0
vmmpepl 168 25370 0 24630 48 9 39 48 0
357 5
vmsppl 272 175 0 165 1 0 1 1 0
8 0
pdppl 4096 360 0 330 5 0 5 5 0
8 0
pvpl 32 72235 0 67447 39 0 39 39 0
265 0
pmappl 200 176 0 165 1 0 1 1 0
8 0
extentpl 40 46 0 29 1 0 1 1 0
8 0
phpool 112 229 0 5 7 0 7 7 0
8 0
HEAD commit: 978220ac correct return type of sign_extend64()
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15f04326e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=d0fe83f82fe104d4
dashboard link: https://syzkaller.appspot.com/bug?extid=27cfad3394f34528cbec
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1781cbcee00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14a7db5ae00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+27cfad...@syzkaller.appspotmail.com
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*427126 19152 0 0x2 0 0 syz-executor1284
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd80375a0640,7ff,200,1) at amap_pp_adjref+0x59e
panic() at panic+0x15c sys/kern/subr_prf.c:207
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff8000006a2400,0,200000,7fc000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3733
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline]
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3668
vm_impl_init_vmx(ffff8000ffff3860,ffff8000ffff4010) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd803a947680,c5005601,ffff800000a65000,1,fffffd803f7c6c00,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8036218a58,c5005601,ffff800000a65000,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff8000148da848,ffff8000148da890) at
sys_ioctl+0x5b9
syscall(ffff8000148da910) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8af0, count: 3
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $maxwidth = 0
ddb> show panic
amap_pp_adjref: negative reference count
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
amap_pp_adjref(fffffd80375a0640,7ff,200,1) at amap_pp_adjref+0x59e
panic() at panic+0x15c sys/kern/subr_prf.c:207
sys/uvm/uvm_amap.c:829
uvm_mapent_clone(ffff8000006a2400,0,200000,7fc000,7,7) at
uvm_mapent_clone+0x14c sys/uvm/uvm_map.c:3733
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 uvm_mapent_share sys/uvm/uvm_map.c:3767 [inline]
uvm_share(ffff8000006a2400,0,7,fffffd803f011990,20800000,200000) at
uvm_share+0x4b4 sys/uvm/uvm_map.c:3668
vm_impl_init_vmx(ffff8000ffff3860,ffff8000ffff4010) at
vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline]
vm_create(ffff800000a65000,ffff8000ffff4010) at vm_create+0x193
sys/arch/amd64/amd64/vmm.c:1174
VOP_IOCTL(fffffd803a947680,c5005601,ffff800000a65000,1,fffffd803f7c6c00,ffff8000ffff4010)
at
VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8036218a58,c5005601,ffff800000a65000,ffff8000ffff4010) at
vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4010,ffff8000148da848,ffff8000148da890) at
sys_ioctl+0x5b9
syscall(ffff8000148da910) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8af0, count: -12
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff8000148da1a0
rbx 0xffff8000148da250
rdx 0x2
rcx 0x1
rax 0x1
r8 0xffff8000148da160
r9 0x1
r10 0xa5583dfe5ceec6a4
r11 0x2b07f159e1c94563
r12 0x3000000008
r13 0xffff8000148da1b0
r14 0x100
r15 0x1
rip 0xffffffff812012d8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff8000148da190
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb> show proc
db_enter+0x18: addq $0x8,%rsp
PROC (syz-executor1284) pid=427126 stat=onproc
flags process=2<EXEC> proc=0
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff4c68,0xffffffff825a1c50
process=0xffff8000148a2018 user=0xffff8000148d5000,
vmspace=0xfffffd803f011990
estcpu=36, cpticks=94, pctcpu=2.55
user=0, sys=362, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*19152 427126 90367 0 7 0x2 syz-executor1284
90367 44126 19333 0 3 0x10008a pause ksh
19333 281632 7398 0 2 0x12 sshd
88982 307274 1 0 3 0x100083 ttyin getty
7398 280111 1 0 3 0x80 select sshd
21012 206759 47589 73 3 0x100090 kqread syslogd
47589 166148 1 0 3 0x100082 netio syslogd
95255 372560 1 77 3 0x100090 poll dhclient
94034 296357 1 0 3 0x80 poll dhclient
75173 474186 0 0 2 0x14200 zerothread
52991 265656 0 0 3 0x14200 aiodoned aiodoned
15812 341109 0 0 2 0x14200 update
52542 515431 0 0 3 0x14200 cleaner cleaner
95256 29038 0 0 3 0x14200 reaper reaper
26964 307942 0 0 3 0x14200 pgdaemon pagedaemon
33568 296996 0 0 3 0x14200 bored crynlk
86959 139080 0 0 3 0x14200 bored crypto
16373 516327 0 0 3 0x40014200 acpi0 acpi0
96933 37590 0 0 2 0x14200 softnet
30309 460263 0 0 2 0x14200 systqmp
93197 174532 0 0 3 0x14200 bored systq
97761 479780 0 0 2 0x40014200 softclock
27048 27355 0 0 3 0x40014200 idle0
37284 76635 0 0 3 0x14200 bored smr
1 156937 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim
devbuf 9438 6318K 6319K 78643K 10535 0 0
pcb 13 8K 8K 78643K 13 0 0
rtable 61 1K 2K 78643K 115 0 0
ifaddr 24 7K 7K 78643K 24 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 1 2K 2K 78643K 14 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1180 74K 74K 78643K 1185 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
UFS mount 5 36K 36K 78643K 5 0 0
VM map 3 0K 0K 78643K 3 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1794 195K 288K 78643K 12646 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 47 38K 46K 78643K 278 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
exec 0 0K 1K 78643K 151 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 52 11K 11K 78643K 686 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
crypto data 1 1K 1K 78643K 1 0 0
temp 21 3519K 3583K 78643K 1687 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg
Idle
arp 64 2 0 0 1 0 1 1 0
Idle
8 0
rtpcb 80 15 0 13 1 0 1 1 0
8 0
rtentry 112 23 0 1 1 0 1 1 0
8 0
unpcb 120 27 0 19 1 0 1 1 0
8 0
syncache 264 5 0 5 1 0 1 1 0
8 1
tcpcb 544 8 0 5 1 0 1 1 0
8 0
inpcb 280 22 0 16 1 0 1 1 0
8 0
art_heap8 4096 1 0 0 1 0 1 1 0
8 0
art_heap4 256 95 0 0 6 0 6 6 0
8 0
8 0
art_table 32 96 0 0 1 0 1 1 0
8 0
art_node 16 22 0 2 1 0 1 1 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 1389 0 15 45 0 45 45 0
8 0
8 0
ffsino 240 1389 0 15 81 0 81 81 0
8 0
nchpl 144 1576 0 44 57 0 57 57 0
8 0
uvmvnodes 72 1398 0 0 26 0 26 26 0
8 0
vnodes 208 1398 0 0 74 0 74 74 0
8 0
namei 1024 3453 0 3453 1 0 1 1 0
8 1
vmpool 520 1 0 0 1 0 1 1 0
8 0
scxspl 192 2380 0 2380 2 1 1 2 0
8 1
plimitpl 152 13 0 8 1 0 1 1 0
8 0
sigapl 432 175 0 165 2 0 2 2 0
8 0
knotepl 112 5 0 0 1 0 1 1 0
8 0
kqueuepl 104 1 0 0 1 0 1 1 0
8 0
pipepl 128 116 0 107 1 0 1 1 0
8 0
fdescpl 424 176 0 165 2 0 2 2 0
8 0
filepl 120 836 0 790 2 0 2 2 0
8 0
lockfpl 104 5 0 4 1 0 1 1 0
8 0
lockfspl 48 3 0 2 1 0 1 1 0
8 0
sessionpl 112 17 0 9 1 0 1 1 0
8 0
pgrppl 48 17 0 9 1 0 1 1 0
8 0
ucredpl 96 47 0 40 1 0 1 1 0
8 0
zombiepl 144 165 0 165 1 0 1 1 0
8 1
processpl 864 190 0 165 4 0 4 4 0
8 0
procpl 632 190 0 165 3 0 3 3 0
8 0
sockpl 384 64 0 48 2 0 2 2 0
8 0
mcl4k 4096 10 0 10 1 0 1 1 0
8 1
mcl2k 2048 5765 0 5733 7 1 6 7 0
8 1
mtagpl 80 2 0 2 1 1 0 1 0
8 0
mbufpl 256 9858 0 9811 7 2 5 6 0
8 1
bufpl 256 2046 0 240 113 0 113 113 0
8 0
anonpl 16 18942 0 15780 15 2 13 13 0
62 0
amapchunkpl 152 590 0 427 7 0 7 7 0
158 0
amappl16 192 69 0 65 1 0 1 1 0
8 0
amappl14 176 35 0 31 1 0 1 1 0
8 0
amappl12 160 5 0 5 1 0 1 1 0
8 1
amappl11 152 43 0 32 1 0 1 1 0
8 0
amappl10 144 1 0 1 1 1 0 1 0
8 0
amappl9 136 364 0 363 1 0 1 1 0
8 0
amappl8 128 83 0 79 1 0 1 1 0
8 0
amappl7 120 15 0 14 1 0 1 1 0
8 0
amappl6 112 42 0 38 1 0 1 1 0
8 0
amappl5 104 163 0 152 1 0 1 1 0
8 0
amappl4 96 394 0 372 1 0 1 1 0
8 0
amappl3 88 104 0 98 1 0 1 1 0
8 0
amappl2 80 693 0 644 2 0 2 2 0
8 0
amappl1 72 11944 0 11562 16 7 9 16 0
8 0
amappl 80 353 0 333 1 0 1 1 0
84 0
dma4096 4096 1 0 1 1 1 0 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
dma4096 4096 1 0 1 1 1 0 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
8 0
aobjpl 64 1 0 0 1 0 1 1 0
8 0
uaddrrnd 24 177 0 165 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 177 0 165 1 0 1 1 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
8 0
vmmpekpl 168 5295 0 5281 1 0 1 1 0
8 0
vmmpepl 168 25370 0 24630 48 9 39 48 0
357 5
vmsppl 272 175 0 165 1 0 1 1 0
8 0
pdppl 4096 360 0 330 5 0 5 5 0
8 0
pvpl 32 72235 0 67447 39 0 39 39 0
265 0
pmappl 200 176 0 165 1 0 1 1 0
8 0
extentpl 40 46 0 29 1 0 1 1 0
8 0
phpool 112 229 0 5 7 0 7 7 0
8 0
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