uvm_fault: VOP_ISLOCKED
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syzbot
Nov 12, 2019, 9:35:10 AM11/12/19
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 32906ae9 Prevent underflows in tp->snd_wnd if the remote s..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=10f0ac74e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=551b7114ad4a6cb8c822
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+551b71...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e
VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70
end trace frame: 0xffff800022d6b170, count: 0
ddb{0}> trace
VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70
getnewvnode() at getnewvnode+0x1cd sys/kern/vfs_subr.c:417
ffs_vget() at ffs_vget+0xa2 sys/ufs/ffs/ffs_vfsops.c:1327
ffs_inode_alloc() at ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392
ufs_mkdir(ffff800022d6b450) at ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164
VOP_MKDIR(fffffd807efca270,ffff800022d6b5b0,ffff800022d6b600,ffff800022d6b4e0)
at
VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450
domkdirat(ffff800020abe780,ffffff9c,200000c0,d00715ab) at domkdirat+0x121
sys/kern/vfs_syscalls.c:2983
syscall(ffff800022d6b780) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800022d6b780) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff8b,0,2,f6bd634b010) at Xsyscall+0x128
end of kernel
end trace frame: 0xf6e49722130, count: -9
ddb{0}> show registers
rdi 0xffffffff81e65491 VOP_ISLOCKED+0x21
rsi 0xc6f
rbp 0xffff800022d6b0f0
rbx 0x1726 __ALIGN_SIZE+0x726
rdx 0xc70
rcx 0xffff800022d88000
rax 0
r8 0x30
r9 0x7
r10 0xb037cbf15a9d8e84
r11 0xf8be77e4db919c0
r12 0xfffffd80617fd500
r13 0xffffffff82665460 vnode_free_list
r14 0xfffffd80617fd500
r15 0xffff8000006acc00
rip 0xffffffff81e65499 VOP_ISLOCKED+0x29
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800022d6b0c0
ss 0x10
VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14
ddb{0}> show proc
PROC (syz-executor.0) pid=518728 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=77, usrpri=77, nice=20
forw=0xffffffffffffffff, list=0xffff800020abe018,0xffff800020abec80
process=0xffff800020add500 user=0xffff800022d66000,
vmspace=0xfffffd806e7bde68
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
3908 32385 94808 0 2 0 syz-executor.1
16199 37297 20093 0 7 0 syz-executor.0
*16199 518728 20093 0 7 0x4000000 syz-executor.0
94808 399829 55400 0 3 0x82 nanosleep syz-executor.1
20093 229603 55400 0 3 0x82 nanosleep syz-executor.0
13208 327322 0 0 3 0x14200 acct acct
65431 70754 1 0 3 0x100083 ttyin getty
80888 86460 0 0 3 0x14200 bored sosplice
55400 369872 15766 0 3 0x82 thrsleep syz-fuzzer
55400 396008 15766 0 3 0x4000082 nanosleep syz-fuzzer
55400 232794 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 371238 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 438117 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 489844 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 70506 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 275534 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 425277 15766 0 3 0x4000082 nanosleep syz-fuzzer
55400 492144 15766 0 3 0x4000082 kqread syz-fuzzer
15766 461761 52930 0 3 0x10008a pause ksh
52930 147971 38954 0 3 0x92 select sshd
38954 221905 1 0 3 0x80 select sshd
65000 252857 40858 74 3 0x100092 bpf pflogd
40858 510085 1 0 3 0x80 netio pflogd
7639 166423 76187 73 3 0x100090 kqread syslogd
76187 365458 1 0 3 0x100082 netio syslogd
64797 190014 1 77 3 0x100090 poll dhclient
82960 420279 1 0 3 0x80 poll dhclient
63936 185435 0 0 2 0x14200 zerothread
26387 20556 0 0 3 0x14200 aiodoned aiodoned
39179 146096 0 0 3 0x14200 syncer update
42047 221813 0 0 3 0x14200 cleaner cleaner
1994 522384 0 0 3 0x14200 reaper reaper
94481 431728 0 0 3 0x14200 pgdaemon pagedaemon
34290 178710 0 0 3 0x14200 bored crynlk
99751 311011 0 0 3 0x14200 bored crypto
5473 246194 0 0 3 0x40014200 acpi0 acpi0
76341 224558 0 0 3 0x40014200 idle1
92244 144455 0 0 3 0x14200 bored softnet
10353 22437 0 0 3 0x14200 bored systqmp
79683 379293 0 0 3 0x14200 bored systq
64941 38598 0 0 3 0x40014200 bored softclock
7960 336481 0 0 3 0x40014200 idle0
33417 420329 0 0 3 0x14200 bored smr
1 178397 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 16199 (syz-executor.0) thread 0xffff800020abe780 (518728)
exclusive rrwlock inode r = 0 (0xfffffd807ec52c48)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 rw_enter+0x447 sys/kern/kern_rwlock.c:306
#2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435
#3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:571
#5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419
#6 namei+0x63c sys/kern/vfs_lookup.c:249
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2968
#8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8264bbd8)
#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 9563 6451K 8020K 78643K 15657 0 0
pcb 13 8K 8K 78643K 460 0 0
rtable 113 13K 13K 78643K 1703 0 0
ifaddr 185 23K 24K 78643K 542 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1576 0 0
iov 0 0K 32K 78643K 330 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1226 77K 78K 78643K 3336 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 9K 78643K 31 0 0
VM map 8 4K 4K 78643K 11 0 0
sem 12 0K 0K 78643K 958 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 6 17K 25K 78643K 1965 0 0
sigio 0 0K 0K 78643K 49 0 0
proc 61 63K 95K 78643K 1368 0 0
subproc 32 2K 2K 78643K 323 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 164 0 0
in_multi 33 2K 2K 78643K 332 0 0
ether_multi 1 0K 0K 78643K 16 0 0
mrt 0 0K 0K 78643K 8 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 84 371K 371K 78643K 84 0 0
exec 0 0K 1K 78643K 574 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 159 106K 106K 78643K 7921 0 0
UVM aobj 130 4K 4K 78643K 138 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 1K 78643K 460 0 0
NDP 24 1K 1K 78643K 146 0 0
temp 169 3556K 4195K 78643K 73007 0 0
kqueue 0 0K 0K 78643K 22 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 71 0 65 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 199 0 197 1 0 1 1 0
8 0
rtentry 112 312 0 270 2 0 2 2 0
8 0
unpcb 120 1075 0 1065 1 0 1 1 0
8 0
syncache 264 14 0 14 4 4 0 1 0
8 0
tcpcb 544 1979 0 1974 4 2 2 2 0
8 1
inpcb 280 4109 0 4102 7 5 2 4 0
8 1
rttmr 72 3 0 3 3 3 0 1 0
8 0
nd6 48 44 0 40 1 0 1 1 0
8 0
pkpcb 40 17 0 17 4 3 1 1 0
8 1
ppxss 1128 44 0 44 7 6 1 1 0
8 1
pffrag 232 59 0 59 3 2 1 1 0
482 1
pffrnode 88 59 0 59 3 2 1 1 0
8 1
pffrent 40 2303 0 2303 3 2 1 1 0
8 1
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 24 188 0 107 1 0 1 1 0
8 0
pfstkey 112 188 0 107 3 0 3 3 0
8 0
pfstate 328 188 0 107 9 0 9 9 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 1272 0 1058 23 9 14 15 0
8 0
art_table 32 1273 0 1058 2 0 2 2 0
8 0
art_node 16 311 0 273 1 0 1 1 0
8 0
sysvmsgpl 40 39 0 24 1 0 1 1 0
8 0
semapl 112 956 0 946 1 0 1 1 0
8 0
shmpl 112 136 0 8 4 0 4 4 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4450 0 3047 46 0 46 46 0
8 0
ffsino 272 4450 0 3047 95 0 95 95 0
8 0
nchpl 144 7481 0 7042 60 33 27 60 0
8 8
uvmvnodes 72 5926 0 0 108 0 108 108 0
8 0
vnodes 208 5926 0 0 312 0 312 312 0
8 0
vnodes: pool(0xffffffff82665480:vnodes): page inconsistency: page 0x0; at
page head addr 0xfffffd80617fdf90 (p 0xfffffd80617fd000)
namei 1024 26555 0 26554 1 0 1 1 0
8 0
percpumem 16 30 0 0 1 0 1 1 0
8 0
vcpupl 1984 7 0 1 1 0 1 1 0
8 0
vmpool 552 9 0 3 1 0 1 1 0
8 0
scsiplug 64 4 0 4 2 2 0 1 0
8 0
scxspl 192 24346 0 24346 15 12 3 4 0
8 3
plimitpl 152 171 0 163 1 0 1 1 0
8 0
sigapl 432 2114 0 2098 4 1 3 3 0
8 1
futexpl 56 50241 0 50241 1 0 1 1 0
8 1
knotepl 112 561 0 542 2 1 1 2 0
8 0
kqueuepl 104 617 0 615 1 0 1 1 0
8 0
pipepl 160 4190 0 4171 6 4 2 4 0
8 1
fdescpl 488 2115 0 2098 3 0 3 3 0
8 0
filepl 152 21090 0 20988 11 5 6 7 0
8 2
lockfpl 104 796 0 795 1 0 1 1 0
8 0
lockfspl 48 240 0 239 1 0 1 1 0
8 0
sessionpl 112 37 0 26 1 0 1 1 0
8 0
pgrppl 48 72 0 61 1 0 1 1 0
8 0
ucredpl 96 2067 0 2058 1 0 1 1 0
8 0
zombiepl 144 2098 0 2098 1 0 1 1 0
8 1
processpl 896 2132 0 2098 5 0 5 5 0
8 1
procpl 632 6266 0 6222 5 0 5 5 0
8 0
srpgc 64 25 0 25 7 6 1 1 0
8 1
sosppl 128 108 0 108 7 6 1 1 0
8 1
sockpl 384 5436 0 5417 16 12 4 8 0
8 2
mcl64k 65536 16 0 0 2 0 2 2 0
8 0
mcl16k 16384 16 0 0 2 0 2 2 0
8 0
mcl12k 12288 17 0 0 2 0 2 2 0
8 0
mcl9k 9216 11 0 0 1 0 1 1 0
8 0
mcl8k 8192 12 0 0 2 0 2 2 0
8 0
mcl4k 4096 17 0 0 3 0 3 3 0
8 0
mcl2k2 2112 6 0 0 1 0 1 1 0
8 0
mcl2k 2048 192 0 0 23 2 21 23 0
8 1
mtagpl 80 55 0 0 1 0 1 1 0
8 0
mbufpl 256 467 0 0 25 0 25 25 0
8 0
bufpl 256 12135 0 5077 442 0 442 442 0
8 0
anonpl 16 272405 0 253767 123 23 100 105 0
124 9
amapchunkpl 152 16201 0 16043 32 18 14 20 0
158 6
amappl16 192 10368 0 9109 100 29 71 75 0
8 7
amappl15 184 532 0 529 1 0 1 1 0
8 0
amappl14 176 405 0 399 1 0 1 1 0
8 0
amappl13 168 245 0 245 4 3 1 1 0
8 1
amappl12 160 338 0 330 1 0 1 1 0
8 0
amappl11 152 106 0 91 1 0 1 1 0
8 0
amappl10 144 346 0 340 1 0 1 1 0
8 0
amappl9 136 1043 0 1040 1 0 1 1 0
8 0
amappl8 128 679 0 622 3 0 3 3 0
8 0
amappl7 120 456 0 448 1 0 1 1 0
8 0
amappl6 112 64 0 53 1 0 1 1 0
8 0
amappl5 104 602 0 586 1 0 1 1 0
8 0
amappl4 96 2126 0 2093 1 0 1 1 0
8 0
amappl3 88 787 0 776 1 0 1 1 0
8 0
amappl2 80 15496 0 15417 3 1 2 3 0
8 0
amappl1 72 58246 0 57802 26 15 11 20 0
8 1
amappl 80 6839 0 6785 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 64 137 0 8 3 0 3 3 0
8 0
uaddrrnd 24 2124 0 2098 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 2124 0 2098 1 0 1 1 0
8 0
vmmpekpl 168 26472 0 26431 4 1 3 3 0
8 0
vmmpepl 168 284625 0 282089 206 46 160 160 0 357
47
vmsppl 368 2114 0 2098 2 0 2 2 0
8 0
pdppl 4096 4255 0 4208 7 0 7 7 0
8 0
pvpl 32 754392 0 733160 271 37 234 238 0 265
27
pmappl 232 2123 0 2101 3 1 2 2 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 639 0 16 18 0 18 18 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: 32906ae9 Prevent underflows in tp->snd_wnd if the remote s..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=10f0ac74e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=26ca0a9c07f16a3a
dashboard link: https://syzkaller.appspot.com/bug?extid=551b7114ad4a6cb8c822
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+551b71...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xfffffd806e7bde68, 0x10, 0, 1) -> e
VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70
end trace frame: 0xffff800022d6b170, count: 0
ddb{0}> trace
VOP_ISLOCKED(fffffd80617fd500) at VOP_ISLOCKED+0x29 sys/kern/vfs_vops.c:70
getnewvnode() at getnewvnode+0x1cd sys/kern/vfs_subr.c:417
ffs_vget() at ffs_vget+0xa2 sys/ufs/ffs/ffs_vfsops.c:1327
ffs_inode_alloc() at ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392
ufs_mkdir(ffff800022d6b450) at ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164
VOP_MKDIR(fffffd807efca270,ffff800022d6b5b0,ffff800022d6b600,ffff800022d6b4e0)
at
VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450
domkdirat(ffff800020abe780,ffffff9c,200000c0,d00715ab) at domkdirat+0x121
sys/kern/vfs_syscalls.c:2983
syscall(ffff800022d6b780) at syscall+0x4a4 mi_syscall
sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800022d6b780) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff8b,0,2,f6bd634b010) at Xsyscall+0x128
end of kernel
end trace frame: 0xf6e49722130, count: -9
ddb{0}> show registers
rdi 0xffffffff81e65491 VOP_ISLOCKED+0x21
rsi 0xc6f
rbp 0xffff800022d6b0f0
rbx 0x1726 __ALIGN_SIZE+0x726
rdx 0xc70
rcx 0xffff800022d88000
rax 0
r8 0x30
r9 0x7
r10 0xb037cbf15a9d8e84
r11 0xf8be77e4db919c0
r12 0xfffffd80617fd500
r13 0xffffffff82665460 vnode_free_list
r14 0xfffffd80617fd500
r15 0xffff8000006acc00
rip 0xffffffff81e65499 VOP_ISLOCKED+0x29
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800022d6b0c0
ss 0x10
VOP_ISLOCKED+0x29: movq 0x10(%rax),%r14
ddb{0}> show proc
PROC (syz-executor.0) pid=518728 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=77, usrpri=77, nice=20
forw=0xffffffffffffffff, list=0xffff800020abe018,0xffff800020abec80
process=0xffff800020add500 user=0xffff800022d66000,
vmspace=0xfffffd806e7bde68
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
3908 32385 94808 0 2 0 syz-executor.1
16199 37297 20093 0 7 0 syz-executor.0
*16199 518728 20093 0 7 0x4000000 syz-executor.0
94808 399829 55400 0 3 0x82 nanosleep syz-executor.1
20093 229603 55400 0 3 0x82 nanosleep syz-executor.0
13208 327322 0 0 3 0x14200 acct acct
65431 70754 1 0 3 0x100083 ttyin getty
80888 86460 0 0 3 0x14200 bored sosplice
55400 369872 15766 0 3 0x82 thrsleep syz-fuzzer
55400 396008 15766 0 3 0x4000082 nanosleep syz-fuzzer
55400 232794 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 371238 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 438117 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 489844 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 70506 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 275534 15766 0 3 0x4000082 thrsleep syz-fuzzer
55400 425277 15766 0 3 0x4000082 nanosleep syz-fuzzer
55400 492144 15766 0 3 0x4000082 kqread syz-fuzzer
15766 461761 52930 0 3 0x10008a pause ksh
52930 147971 38954 0 3 0x92 select sshd
38954 221905 1 0 3 0x80 select sshd
65000 252857 40858 74 3 0x100092 bpf pflogd
40858 510085 1 0 3 0x80 netio pflogd
7639 166423 76187 73 3 0x100090 kqread syslogd
76187 365458 1 0 3 0x100082 netio syslogd
64797 190014 1 77 3 0x100090 poll dhclient
82960 420279 1 0 3 0x80 poll dhclient
63936 185435 0 0 2 0x14200 zerothread
26387 20556 0 0 3 0x14200 aiodoned aiodoned
39179 146096 0 0 3 0x14200 syncer update
42047 221813 0 0 3 0x14200 cleaner cleaner
1994 522384 0 0 3 0x14200 reaper reaper
94481 431728 0 0 3 0x14200 pgdaemon pagedaemon
34290 178710 0 0 3 0x14200 bored crynlk
99751 311011 0 0 3 0x14200 bored crypto
5473 246194 0 0 3 0x40014200 acpi0 acpi0
76341 224558 0 0 3 0x40014200 idle1
92244 144455 0 0 3 0x14200 bored softnet
10353 22437 0 0 3 0x14200 bored systqmp
79683 379293 0 0 3 0x14200 bored systq
64941 38598 0 0 3 0x40014200 bored softclock
7960 336481 0 0 3 0x40014200 idle0
33417 420329 0 0 3 0x14200 bored smr
1 178397 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 16199 (syz-executor.0) thread 0xffff800020abe780 (518728)
exclusive rrwlock inode r = 0 (0xfffffd807ec52c48)
#0 witness_lock+0x52e sys/kern/subr_witness.c:1163
#1 rw_enter+0x447 sys/kern/kern_rwlock.c:306
#2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435
#3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:571
#5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419
#6 namei+0x63c sys/kern/vfs_lookup.c:249
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2968
#8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8264bbd8)
#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 9563 6451K 8020K 78643K 15657 0 0
pcb 13 8K 8K 78643K 460 0 0
rtable 113 13K 13K 78643K 1703 0 0
ifaddr 185 23K 24K 78643K 542 0 0
counters 39 33K 33K 78643K 39 0 0
ioctlops 0 0K 4K 78643K 1576 0 0
iov 0 0K 32K 78643K 330 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1226 77K 78K 78643K 3336 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 9K 78643K 31 0 0
VM map 8 4K 4K 78643K 11 0 0
sem 12 0K 0K 78643K 958 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1808 196K 290K 78643K 12765 0 0
file desc 6 17K 25K 78643K 1965 0 0
sigio 0 0K 0K 78643K 49 0 0
proc 61 63K 95K 78643K 1368 0 0
subproc 32 2K 2K 78643K 323 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 164 0 0
in_multi 33 2K 2K 78643K 332 0 0
ether_multi 1 0K 0K 78643K 16 0 0
mrt 0 0K 0K 78643K 8 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 84 371K 371K 78643K 84 0 0
exec 0 0K 1K 78643K 574 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 159 106K 106K 78643K 7921 0 0
UVM aobj 130 4K 4K 78643K 138 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
ip6_options 0 0K 1K 78643K 460 0 0
NDP 24 1K 1K 78643K 146 0 0
temp 169 3556K 4195K 78643K 73007 0 0
kqueue 0 0K 0K 78643K 22 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 71 0 65 1 0 1 1 0
8 0
plcache 128 20 0 0 1 0 1 1 0
8 0
rtpcb 80 199 0 197 1 0 1 1 0
8 0
rtentry 112 312 0 270 2 0 2 2 0
8 0
unpcb 120 1075 0 1065 1 0 1 1 0
8 0
syncache 264 14 0 14 4 4 0 1 0
8 0
tcpcb 544 1979 0 1974 4 2 2 2 0
8 1
inpcb 280 4109 0 4102 7 5 2 4 0
8 1
rttmr 72 3 0 3 3 3 0 1 0
8 0
nd6 48 44 0 40 1 0 1 1 0
8 0
pkpcb 40 17 0 17 4 3 1 1 0
8 1
ppxss 1128 44 0 44 7 6 1 1 0
8 1
pffrag 232 59 0 59 3 2 1 1 0
482 1
pffrnode 88 59 0 59 3 2 1 1 0
8 1
pffrent 40 2303 0 2303 3 2 1 1 0
8 1
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 24 188 0 107 1 0 1 1 0
8 0
pfstkey 112 188 0 107 3 0 3 3 0
8 0
pfstate 328 188 0 107 9 0 9 9 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 1272 0 1058 23 9 14 15 0
8 0
art_table 32 1273 0 1058 2 0 2 2 0
8 0
art_node 16 311 0 273 1 0 1 1 0
8 0
sysvmsgpl 40 39 0 24 1 0 1 1 0
8 0
semapl 112 956 0 946 1 0 1 1 0
8 0
shmpl 112 136 0 8 4 0 4 4 0
8 0
dirhash 1024 17 0 0 3 0 3 3 0
8 0
dino1pl 128 4450 0 3047 46 0 46 46 0
8 0
ffsino 272 4450 0 3047 95 0 95 95 0
8 0
nchpl 144 7481 0 7042 60 33 27 60 0
8 8
uvmvnodes 72 5926 0 0 108 0 108 108 0
8 0
vnodes 208 5926 0 0 312 0 312 312 0
8 0
vnodes: pool(0xffffffff82665480:vnodes): page inconsistency: page 0x0; at
page head addr 0xfffffd80617fdf90 (p 0xfffffd80617fd000)
namei 1024 26555 0 26554 1 0 1 1 0
8 0
percpumem 16 30 0 0 1 0 1 1 0
8 0
vcpupl 1984 7 0 1 1 0 1 1 0
8 0
vmpool 552 9 0 3 1 0 1 1 0
8 0
scsiplug 64 4 0 4 2 2 0 1 0
8 0
scxspl 192 24346 0 24346 15 12 3 4 0
8 3
plimitpl 152 171 0 163 1 0 1 1 0
8 0
sigapl 432 2114 0 2098 4 1 3 3 0
8 1
futexpl 56 50241 0 50241 1 0 1 1 0
8 1
knotepl 112 561 0 542 2 1 1 2 0
8 0
kqueuepl 104 617 0 615 1 0 1 1 0
8 0
pipepl 160 4190 0 4171 6 4 2 4 0
8 1
fdescpl 488 2115 0 2098 3 0 3 3 0
8 0
filepl 152 21090 0 20988 11 5 6 7 0
8 2
lockfpl 104 796 0 795 1 0 1 1 0
8 0
lockfspl 48 240 0 239 1 0 1 1 0
8 0
sessionpl 112 37 0 26 1 0 1 1 0
8 0
pgrppl 48 72 0 61 1 0 1 1 0
8 0
ucredpl 96 2067 0 2058 1 0 1 1 0
8 0
zombiepl 144 2098 0 2098 1 0 1 1 0
8 1
processpl 896 2132 0 2098 5 0 5 5 0
8 1
procpl 632 6266 0 6222 5 0 5 5 0
8 0
srpgc 64 25 0 25 7 6 1 1 0
8 1
sosppl 128 108 0 108 7 6 1 1 0
8 1
sockpl 384 5436 0 5417 16 12 4 8 0
8 2
mcl64k 65536 16 0 0 2 0 2 2 0
8 0
mcl16k 16384 16 0 0 2 0 2 2 0
8 0
mcl12k 12288 17 0 0 2 0 2 2 0
8 0
mcl9k 9216 11 0 0 1 0 1 1 0
8 0
mcl8k 8192 12 0 0 2 0 2 2 0
8 0
mcl4k 4096 17 0 0 3 0 3 3 0
8 0
mcl2k2 2112 6 0 0 1 0 1 1 0
8 0
mcl2k 2048 192 0 0 23 2 21 23 0
8 1
mtagpl 80 55 0 0 1 0 1 1 0
8 0
mbufpl 256 467 0 0 25 0 25 25 0
8 0
bufpl 256 12135 0 5077 442 0 442 442 0
8 0
anonpl 16 272405 0 253767 123 23 100 105 0
124 9
amapchunkpl 152 16201 0 16043 32 18 14 20 0
158 6
amappl16 192 10368 0 9109 100 29 71 75 0
8 7
amappl15 184 532 0 529 1 0 1 1 0
8 0
amappl14 176 405 0 399 1 0 1 1 0
8 0
amappl13 168 245 0 245 4 3 1 1 0
8 1
amappl12 160 338 0 330 1 0 1 1 0
8 0
amappl11 152 106 0 91 1 0 1 1 0
8 0
amappl10 144 346 0 340 1 0 1 1 0
8 0
amappl9 136 1043 0 1040 1 0 1 1 0
8 0
amappl8 128 679 0 622 3 0 3 3 0
8 0
amappl7 120 456 0 448 1 0 1 1 0
8 0
amappl6 112 64 0 53 1 0 1 1 0
8 0
amappl5 104 602 0 586 1 0 1 1 0
8 0
amappl4 96 2126 0 2093 1 0 1 1 0
8 0
amappl3 88 787 0 776 1 0 1 1 0
8 0
amappl2 80 15496 0 15417 3 1 2 3 0
8 0
amappl1 72 58246 0 57802 26 15 11 20 0
8 1
amappl 80 6839 0 6785 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 64 137 0 8 3 0 3 3 0
8 0
uaddrrnd 24 2124 0 2098 1 0 1 1 0
8 0
uaddrbest 32 2 0 0 1 0 1 1 0
8 0
uaddr 24 2124 0 2098 1 0 1 1 0
8 0
vmmpekpl 168 26472 0 26431 4 1 3 3 0
8 0
vmmpepl 168 284625 0 282089 206 46 160 160 0 357
47
vmsppl 368 2114 0 2098 2 0 2 2 0
8 0
pdppl 4096 4255 0 4208 7 0 7 7 0
8 0
pvpl 32 754392 0 733160 271 37 234 238 0 265
27
pmappl 232 2123 0 2101 3 1 2 2 0
8 0
extentpl 40 41 0 26 1 0 1 1 0
8 0
phpool 112 639 0 16 18 0 18 18 0
8 0
---
This bug is generated by a bot. It may contain errors.
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syzbot
Feb 10, 2020, 9:35:08 AM2/10/20
to syzkaller-o...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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