uvm_fault: ktrops
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syzbot
Mar 5, 2022, 8:34:35 PM3/5/22
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 8043fa601940 Fix typo in comment
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1111edd1700000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=e06b8353b8ef92799ff1
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e06b83...@syzkaller.appspotmail.com
uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*331107 27543 0 0 0x4000000 1K syz-executor.5
459056 64428 0 0x2 0 0 syz-executor.4
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e
ddb{1}> trace
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: -5
ddb{1}> show registers
rdi 0xffff800027b05000
rsi 0x3018 __ALIGN_SIZE+0x2018
rbp 0xffff800023103910
rbx 0xffffffffffffffff
rdx 0xffff800027b05000
rcx 0x3017 __ALIGN_SIZE+0x2017
rax 0xffffffff8240efbf ktrops+0x3f
r8 0xfffffd806791b160
r9 0xfffffd807f7d87e0
r10 0x75fbb1db267f2355
r11 0xc47ac33eb9330ef8
r12 0xffffffffffffffff
r13 0xfffffd807f7d87e0
r14 0xffff8000ffff4000
r15 0xdf78719c
rip 0xffffffff8240efca ktrops+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800023103890
ss 0x10
ktrops+0x4a: movq 0x8(%rbx),%r14
ddb{1}> show proc
PROC (syz-executor.5) pid=331107 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=17, usrpri=75, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff2fc8,0xffff8000ffff4d30
process=0xffff8000230a0020 user=0xffff8000230fe000, vmspace=0xfffffd807cf505f0
estcpu=25, cpticks=1, pctcpu=0.0
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2246 438667 15171 0 2 0 syz-executor.1
60674 5996 2721 0 2 0 syz-executor.3
60674 210869 2721 0 2 0x4000000 syz-executor.3
27543 236178 58974 0 2 0 syz-executor.5
*27543 331107 58974 0 7 0x4000000 syz-executor.5
45609 81728 11728 0 3 0x80 nanoslp syz-executor.2
45609 355393 11728 0 3 0x4000080 fsleep syz-executor.2
45609 440964 11728 0 3 0x4000080 fsleep syz-executor.2
11728 254706 87612 0 3 0x82 nanoslp syz-executor.2
64428 459056 87612 0 7 0x2 syz-executor.4
26635 235736 87612 0 3 0x82 nanoslp syz-executor.7
15171 424253 87612 0 3 0x82 nanoslp syz-executor.1
65601 514289 87612 0 3 0x82 nanoslp syz-executor.0
2721 85665 87612 0 3 0x82 nanoslp syz-executor.3
41235 382638 87612 0 3 0x82 nanoslp syz-executor.6
71691 283847 0 0 3 0x14280 nfsidl nfsio
59575 295794 0 0 3 0x14280 nfsidl nfsio
29942 3185 0 0 3 0x14280 nfsidl nfsio
74872 413366 0 0 3 0x14280 nfsidl nfsio
55298 242983 0 0 3 0x14280 nfsidl nfsio
74312 203343 0 0 3 0x14280 nfsidl nfsio
15480 316861 0 0 3 0x14280 nfsidl nfsio
26154 324417 0 0 3 0x14280 nfsidl nfsio
21546 391069 0 0 3 0x14280 nfsidl nfsio
27988 149474 0 0 3 0x14280 nfsidl nfsio
80908 166303 0 0 3 0x14280 nfsidl nfsio
53380 326468 0 0 3 0x14280 nfsidl nfsio
29144 75440 0 0 3 0x14280 nfsidl nfsio
24291 100559 0 0 3 0x14280 nfsidl nfsio
70522 75873 0 0 3 0x14280 nfsidl nfsio
96113 480990 0 0 3 0x14280 nfsidl nfsio
83025 179058 0 0 3 0x14280 nfsidl nfsio
3214 126679 0 0 3 0x14280 nfsidl nfsio
10206 218920 0 0 3 0x14280 nfsidl nfsio
75347 343240 0 0 3 0x14280 nfsidl nfsio
60598 521799 0 0 3 0x14200 acct acct
81081 381881 0 0 3 0x14200 bored sosplice
58974 59448 87612 0 3 0x82 nanoslp syz-executor.5
87612 206106 10886 0 3 0x82 nanoslp syz-fuzzer
87612 383843 10886 0 3 0x4000082 nanoslp syz-fuzzer
87612 49829 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 17084 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 183669 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 147766 10886 0 3 0x4000082 kqread syz-fuzzer
87612 261315 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 330102 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 260371 10886 0 3 0x4000082 thrsleep syz-fuzzer
10886 510807 74974 0 3 0x10008a sigsusp ksh
74974 417266 2700 0 3 0x9a kqread sshd
71900 411453 1 0 3 0x100083 ttyin getty
2700 456630 1 0 3 0x88 kqread sshd
72036 267867 63797 74 3 0x1100092 bpf pflogd
63797 39051 1 0 3 0x80 netio pflogd
30131 444774 50681 73 3 0x1100090 kqread syslogd
50681 286376 1 0 3 0x100082 netio syslogd
60468 356121 1 0 3 0x100080 kqread resolvd
1331 317179 24609 77 3 0x100092 kqread dhcpleased
96844 369035 24609 77 3 0x100092 kqread dhcpleased
24609 142641 1 0 3 0x80 kqread dhcpleased
78337 11118 0 0 3 0x14200 bored smr
77249 189439 0 0 2 0x14200 zerothread
9641 267523 0 0 3 0x14200 aiodoned aiodoned
11951 355589 0 0 3 0x14200 syncer update
63184 434670 0 0 3 0x14200 cleaner cleaner
65336 360260 0 0 3 0x14200 reaper reaper
28702 418845 0 0 3 0x14200 pgdaemon pagedaemon
83874 66673 0 0 3 0x14200 bored viomb
64011 493481 0 0 3 0x40014200 acpi0 acpi0
65504 88184 0 0 3 0x40014200 idle1
51124 258467 0 0 2 0x14200 softnet
73819 16873 0 0 3 0x14200 bored systqmp
83568 428902 0 0 3 0x14200 bored systq
92545 70112 0 0 3 0x40014200 bored softclock
27453 71977 0 0 3 0x40014200 idle0
1 143193 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 27543 (syz-executor.5) thread 0xffff8000ffff4000 (331107)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82a135e0)
#0 witness_lock+0x44d
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416
#3 sleep_finish+0x198 sys/kern/kern_synch.c:437
#4 tsleep+0x12c sys/kern/kern_synch.c:158
#5 biowait+0x91 sys/kern/vfs_bio.c:1271
#6 bwrite+0x21b sys/kern/vfs_bio.c:772
#7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113
#8 ffs_truncate+0xcec
#9 ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84
#10 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:505
#11 vrele+0xd2 sys/kern/vfs_subr.c:824
#12 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
#13 ktrops+0x1a4 sys/kern/kern_ktrace.c:550
#14 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
#14 doktrace+0x514 sys/kern/kern_ktrace.c:494
#15 sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
#16 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#16 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#17 Xsyscall+0x128
Process 64428 (syz-executor.4) thread 0xffff80002e35fa40 (459056)
exclusive rrwlock inode r = 0 (0xfffffd807391ef88)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101
#10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806e458b40)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:579
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413
#6 namei+0x36a sys/kern/vfs_lookup.c:245
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086
#8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10255 6628K 7306K 78643K 22233 0
pcb 13 18K 20K 78643K 1162 0
rtable 268 17K 19K 78643K 2712 0
ifaddr 96 23K 26K 78643K 1975 0
sysctl 3 1K 1K 78643K 3 0
counters 56 35K 36K 78643K 538 0
ioctlops 0 0K 8K 78643K 7755 0
iov 0 0K 20K 78643K 1087 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1413 88K 89K 78643K 8447 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 61 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 1171 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 93K 78643K 9990 0
sigio 0 0K 0K 78643K 740 0
proc 71 87K 148K 78643K 1825 0
subproc 104 6K 7K 78643K 548 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 346 0
in_multi 95 6K 6K 78643K 835 0
ether_multi 1 0K 0K 78643K 69 0
mrt 0 0K 0K 78643K 24 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 427 1897K 1897K 78643K 427 0
exec 0 0K 2K 78643K 2260 0
pfkey data 0 0K 1K 78643K 4 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 491 759K 759K 78643K 129039 0
UVM aobj 131 4K 4K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 305 0
NDP 12 0K 1K 78643K 373 0
temp 157 4757K 5389K 78643K 105121 0
kqueue 12 18K 26K 78643K 398 0
SYN cache 2 8K 16K 78643K 3 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 876 0 872 13 12 1 3 0 8 0
rtentry 112 685 0 584 4 0 4 4 0 8 0
unpcb 136 16907 0 16892 143 142 1 9 0 8 0
syncache 296 35 0 35 14 14 0 1 0 8 0
tcpqe 32 7 0 7 3 3 0 1 0 8 0
tcpcb 736 3701 0 3697 138 137 1 13 0 8 0
arp 120 96 0 78 1 0 1 1 0 8 0
inpcb 304 13836 0 13829 205 201 4 11 0 8 3
rttmr 72 7 0 7 3 3 0 1 0 8 0
nd6 48 167 0 144 1 0 1 1 0 8 0
pkpcb 40 16 0 16 4 4 0 1 0 8 0
kcovpl 48 42 0 34 1 0 1 1 0 8 0
ppxss 1248 145 0 145 13 13 0 1 0 8 0
pfstscr 40 8 0 8 4 4 0 1 0 8 0
pffrag 232 95 0 94 8 7 1 1 0 482 0
pffrnode 88 95 0 94 8 7 1 1 0 8 0
pffrent 40 914 0 913 12 11 1 1 0 8 0
pfosfp 40 1439 0 1014 5 0 5 5 0 8 0
pfosfpen 112 1439 0 723 21 0 21 21 0 8 0
pfrktable 1344 299 0 279 7 5 2 3 0 8 0
pftag 88 109 0 106 1 0 1 1 0 8 0
pfqueue 264 75 0 75 3 3 0 1 0 8 0
pfstitem 24 24 0 22 1 0 1 1 0 8 0
pfstkey 112 32 0 30 1 0 1 1 0 8 0
pfstate 320 26 0 24 2 1 1 2 0 8 0
pfrule 1360 1295 0 1077 25 6 19 19 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 3056 0 2609 45 17 28 31 0 8 0
art_table 32 3057 0 2609 4 0 4 4 0 8 0
art_node 16 676 0 585 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 4 2 1 1 1 0 8 0
semapl 112 1168 0 1158 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
dino2pl 256 16514 0 15041 93 0 93 93 0 8 0
ffsino 272 16514 0 15041 99 0 99 99 0 8 0
nchpl 144 28932 0 27303 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 117388 0 117387 6 5 1 2 0 8 0
percpumem 16 281 0 241 1 0 1 1 0 8 0
vcpupl 2048 101 0 0 13 0 13 13 0 8 0
vmpool 560 110 0 9 8 0 8 8 0 8 0
pfiaddrpl 120 110 0 82 1 0 1 1 0 8 0
scsiplug 72 7 0 7 1 1 0 1 0 8 0
scxspl 216 73355 0 73355 25 24 1 8 0 8 1
plimitpl 152 786 0 771 1 0 1 1 0 8 0
sigapl 424 10255 0 10189 8 0 8 8 0 8 0
futexpl 64 89609 0 89607 4 3 1 1 0 8 0
knotepl 120 352 0 0 9 1 8 9 0 8 0
kqueuepl 216 1857 0 1849 51 50 1 8 0 8 0
pipepl 336 3126 0 3098 106 103 3 10 0 8 0
fdescpl 496 10219 0 10191 5 1 4 5 0 8 0
filepl 152 99295 0 99053 210 198 12 25 0 8 1
lockfpl 104 2127 0 2125 5 4 1 2 0 8 0
lockfspl 48 599 0 597 1 0 1 1 0 8 0
sessionpl 144 58 0 41 1 0 1 1 0 8 0
pgrppl 48 142 0 125 1 0 1 1 0 8 0
ucredpl 96 28214 0 28199 1 0 1 1 0 8 0
zombiepl 144 10192 0 10189 1 0 1 1 0 8 0
processpl 1064 10255 0 10189 5 0 5 5 0 8 0
procpl 672 30266 0 30188 33 25 8 9 0 8 0
srpgc 96 41 0 41 12 12 0 1 0 8 0
sosppl 168 102 0 102 20 20 0 1 0 8 0
sockpl 480 31653 0 31627 909 899 10 35 0 8 6
mcl64k 65536 34 0 0 4 1 3 3 0 8 0
mcl16k 16384 27 0 0 4 2 2 3 0 8 0
mcl12k 12288 33 0 0 2 0 2 2 0 8 0
mcl9k 9216 25 0 0 2 0 2 2 0 8 0
mcl8k 8192 49 0 0 4 1 3 3 0 8 0
mcl4k 4096 34 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 227 0 0 17 3 14 17 0 8 0
mtagpl 96 621 0 0 12 3 9 11 0 8 0
mbufpl 256 1543 0 0 52 1 51 52 0 8 0
bufpl 288 17751 0 11415 453 0 453 453 0 8 0
anonpl 24 2911182 0 2893958 247 111 136 147 0 186 0
amapchunkpl 152 320100 0 319253 106 69 37 49 0 158 0
amappl16 200 27589 0 26930 168 132 36 46 0 8 1
amappl15 192 3017 0 3010 1 0 1 1 0 8 0
amappl14 184 236 0 231 1 0 1 1 0 8 0
amappl13 176 682 0 677 1 0 1 1 0 8 0
amappl12 168 2691 0 2690 2 1 1 1 0 8 0
amappl11 160 691 0 674 1 0 1 1 0 8 0
amappl10 152 1347 0 1336 1 0 1 1 0 8 0
amappl9 144 842 0 840 1 0 1 1 0 8 0
amappl8 136 2751 0 2646 4 0 4 4 0 8 0
amappl7 128 1618 0 1606 1 0 1 1 0 8 0
amappl6 120 679 0 652 2 1 1 2 0 8 0
amappl5 112 7981 0 7964 1 0 1 1 0 8 0
amappl4 104 3087 0 3051 5 3 2 2 0 8 1
amappl3 96 3959 0 3945 1 0 1 1 0 8 0
amappl2 88 4197 0 4143 3 1 2 3 0 8 0
amappl1 80 187023 0 186454 21 7 14 19 0 8 0
amappl 88 127857 0 127557 10 2 8 8 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 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 10329 0 10200 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 10329 0 10200 1 0 1 1 0 8 0
vmmpekpl 168 86177 0 86095 5 0 5 5 0 8 0
vmmpepl 168 937477 0 934705 347 207 140 149 0 357 3
vmsppl 368 10328 0 10200 14 2 12 12 0 8 0
rwobjpl 56 234206 0 226415 120 7 113 114 0 8 0
pdppl 4096 20665 0 20501 737 567 170 170 0 8 6
pvpl 32 4866693 0 4845239 513 302 211 246 0 265 0
pmappl 248 10328 0 10200 10 1 9 9 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1820 0 847 29 0 29 29 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416
sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437
tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158
getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline]
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481
ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91
ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197
VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
end trace frame: 0xffff8000278b2b80, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416
sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437
tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158
getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline]
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481
ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91
ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197
VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
domkdirat(ffff80002e35fa40,ffffff9c,7f7ffffc0200,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3101
syscall(ffff8000278b2c60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000278b2c60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc0270, count: -17
ddb{0}> machine ddbcpu 1
Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: 10
ddb{1}> trace
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: -5
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 8043fa601940 Fix typo in comment
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1111edd1700000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link: https://syzkaller.appspot.com/bug?extid=e06b8353b8ef92799ff1
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e06b83...@syzkaller.appspotmail.com
uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*331107 27543 0 0 0x4000000 1K syz-executor.5
459056 64428 0 0x2 0 0 syz-executor.4
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, 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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd807cf505f0, 0x7, 0, 1) -> e
ddb{1}> trace
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: -5
ddb{1}> show registers
rdi 0xffff800027b05000
rsi 0x3018 __ALIGN_SIZE+0x2018
rbp 0xffff800023103910
rbx 0xffffffffffffffff
rdx 0xffff800027b05000
rcx 0x3017 __ALIGN_SIZE+0x2017
rax 0xffffffff8240efbf ktrops+0x3f
r8 0xfffffd806791b160
r9 0xfffffd807f7d87e0
r10 0x75fbb1db267f2355
r11 0xc47ac33eb9330ef8
r12 0xffffffffffffffff
r13 0xfffffd807f7d87e0
r14 0xffff8000ffff4000
r15 0xdf78719c
rip 0xffffffff8240efca ktrops+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800023103890
ss 0x10
ktrops+0x4a: movq 0x8(%rbx),%r14
ddb{1}> show proc
PROC (syz-executor.5) pid=331107 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=17, usrpri=75, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff2fc8,0xffff8000ffff4d30
process=0xffff8000230a0020 user=0xffff8000230fe000, vmspace=0xfffffd807cf505f0
estcpu=25, cpticks=1, pctcpu=0.0
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2246 438667 15171 0 2 0 syz-executor.1
60674 5996 2721 0 2 0 syz-executor.3
60674 210869 2721 0 2 0x4000000 syz-executor.3
27543 236178 58974 0 2 0 syz-executor.5
*27543 331107 58974 0 7 0x4000000 syz-executor.5
45609 81728 11728 0 3 0x80 nanoslp syz-executor.2
45609 355393 11728 0 3 0x4000080 fsleep syz-executor.2
45609 440964 11728 0 3 0x4000080 fsleep syz-executor.2
11728 254706 87612 0 3 0x82 nanoslp syz-executor.2
64428 459056 87612 0 7 0x2 syz-executor.4
26635 235736 87612 0 3 0x82 nanoslp syz-executor.7
15171 424253 87612 0 3 0x82 nanoslp syz-executor.1
65601 514289 87612 0 3 0x82 nanoslp syz-executor.0
2721 85665 87612 0 3 0x82 nanoslp syz-executor.3
41235 382638 87612 0 3 0x82 nanoslp syz-executor.6
71691 283847 0 0 3 0x14280 nfsidl nfsio
59575 295794 0 0 3 0x14280 nfsidl nfsio
29942 3185 0 0 3 0x14280 nfsidl nfsio
74872 413366 0 0 3 0x14280 nfsidl nfsio
55298 242983 0 0 3 0x14280 nfsidl nfsio
74312 203343 0 0 3 0x14280 nfsidl nfsio
15480 316861 0 0 3 0x14280 nfsidl nfsio
26154 324417 0 0 3 0x14280 nfsidl nfsio
21546 391069 0 0 3 0x14280 nfsidl nfsio
27988 149474 0 0 3 0x14280 nfsidl nfsio
80908 166303 0 0 3 0x14280 nfsidl nfsio
53380 326468 0 0 3 0x14280 nfsidl nfsio
29144 75440 0 0 3 0x14280 nfsidl nfsio
24291 100559 0 0 3 0x14280 nfsidl nfsio
70522 75873 0 0 3 0x14280 nfsidl nfsio
96113 480990 0 0 3 0x14280 nfsidl nfsio
83025 179058 0 0 3 0x14280 nfsidl nfsio
3214 126679 0 0 3 0x14280 nfsidl nfsio
10206 218920 0 0 3 0x14280 nfsidl nfsio
75347 343240 0 0 3 0x14280 nfsidl nfsio
60598 521799 0 0 3 0x14200 acct acct
81081 381881 0 0 3 0x14200 bored sosplice
58974 59448 87612 0 3 0x82 nanoslp syz-executor.5
87612 206106 10886 0 3 0x82 nanoslp syz-fuzzer
87612 383843 10886 0 3 0x4000082 nanoslp syz-fuzzer
87612 49829 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 17084 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 183669 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 147766 10886 0 3 0x4000082 kqread syz-fuzzer
87612 261315 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 330102 10886 0 3 0x4000082 thrsleep syz-fuzzer
87612 260371 10886 0 3 0x4000082 thrsleep syz-fuzzer
10886 510807 74974 0 3 0x10008a sigsusp ksh
74974 417266 2700 0 3 0x9a kqread sshd
71900 411453 1 0 3 0x100083 ttyin getty
2700 456630 1 0 3 0x88 kqread sshd
72036 267867 63797 74 3 0x1100092 bpf pflogd
63797 39051 1 0 3 0x80 netio pflogd
30131 444774 50681 73 3 0x1100090 kqread syslogd
50681 286376 1 0 3 0x100082 netio syslogd
60468 356121 1 0 3 0x100080 kqread resolvd
1331 317179 24609 77 3 0x100092 kqread dhcpleased
96844 369035 24609 77 3 0x100092 kqread dhcpleased
24609 142641 1 0 3 0x80 kqread dhcpleased
78337 11118 0 0 3 0x14200 bored smr
77249 189439 0 0 2 0x14200 zerothread
9641 267523 0 0 3 0x14200 aiodoned aiodoned
11951 355589 0 0 3 0x14200 syncer update
63184 434670 0 0 3 0x14200 cleaner cleaner
65336 360260 0 0 3 0x14200 reaper reaper
28702 418845 0 0 3 0x14200 pgdaemon pagedaemon
83874 66673 0 0 3 0x14200 bored viomb
64011 493481 0 0 3 0x40014200 acpi0 acpi0
65504 88184 0 0 3 0x40014200 idle1
51124 258467 0 0 2 0x14200 softnet
73819 16873 0 0 3 0x14200 bored systqmp
83568 428902 0 0 3 0x14200 bored systq
92545 70112 0 0 3 0x40014200 bored softclock
27453 71977 0 0 3 0x40014200 idle0
1 143193 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 27543 (syz-executor.5) thread 0xffff8000ffff4000 (331107)
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82a135e0)
#0 witness_lock+0x44d
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416
#3 sleep_finish+0x198 sys/kern/kern_synch.c:437
#4 tsleep+0x12c sys/kern/kern_synch.c:158
#5 biowait+0x91 sys/kern/vfs_bio.c:1271
#6 bwrite+0x21b sys/kern/vfs_bio.c:772
#7 ffs_update+0x27d sys/ufs/ffs/ffs_inode.c:113
#8 ffs_truncate+0xcec
#9 ufs_inactive+0x14e sys/ufs/ufs/ufs_inode.c:84
#10 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:505
#11 vrele+0xd2 sys/kern/vfs_subr.c:824
#12 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:124
#13 ktrops+0x1a4 sys/kern/kern_ktrace.c:550
#14 doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
#14 doktrace+0x514 sys/kern/kern_ktrace.c:494
#15 sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
#16 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#16 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#17 Xsyscall+0x128
Process 64428 (syz-executor.4) thread 0xffff80002e35fa40 (459056)
exclusive rrwlock inode r = 0 (0xfffffd807391ef88)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101
#10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806e458b40)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:579
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413
#6 namei+0x36a sys/kern/vfs_lookup.c:245
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086
#8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10255 6628K 7306K 78643K 22233 0
pcb 13 18K 20K 78643K 1162 0
rtable 268 17K 19K 78643K 2712 0
ifaddr 96 23K 26K 78643K 1975 0
sysctl 3 1K 1K 78643K 3 0
counters 56 35K 36K 78643K 538 0
ioctlops 0 0K 8K 78643K 7755 0
iov 0 0K 20K 78643K 1087 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1413 88K 89K 78643K 8447 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 61 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 1171 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 93K 78643K 9990 0
sigio 0 0K 0K 78643K 740 0
proc 71 87K 148K 78643K 1825 0
subproc 104 6K 7K 78643K 548 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 346 0
in_multi 95 6K 6K 78643K 835 0
ether_multi 1 0K 0K 78643K 69 0
mrt 0 0K 0K 78643K 24 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 427 1897K 1897K 78643K 427 0
exec 0 0K 2K 78643K 2260 0
pfkey data 0 0K 1K 78643K 4 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 491 759K 759K 78643K 129039 0
UVM aobj 131 4K 4K 78643K 139 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 305 0
NDP 12 0K 1K 78643K 373 0
temp 157 4757K 5389K 78643K 105121 0
kqueue 12 18K 26K 78643K 398 0
SYN cache 2 8K 16K 78643K 3 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 876 0 872 13 12 1 3 0 8 0
rtentry 112 685 0 584 4 0 4 4 0 8 0
unpcb 136 16907 0 16892 143 142 1 9 0 8 0
syncache 296 35 0 35 14 14 0 1 0 8 0
tcpqe 32 7 0 7 3 3 0 1 0 8 0
tcpcb 736 3701 0 3697 138 137 1 13 0 8 0
arp 120 96 0 78 1 0 1 1 0 8 0
inpcb 304 13836 0 13829 205 201 4 11 0 8 3
rttmr 72 7 0 7 3 3 0 1 0 8 0
nd6 48 167 0 144 1 0 1 1 0 8 0
pkpcb 40 16 0 16 4 4 0 1 0 8 0
kcovpl 48 42 0 34 1 0 1 1 0 8 0
ppxss 1248 145 0 145 13 13 0 1 0 8 0
pfstscr 40 8 0 8 4 4 0 1 0 8 0
pffrag 232 95 0 94 8 7 1 1 0 482 0
pffrnode 88 95 0 94 8 7 1 1 0 8 0
pffrent 40 914 0 913 12 11 1 1 0 8 0
pfosfp 40 1439 0 1014 5 0 5 5 0 8 0
pfosfpen 112 1439 0 723 21 0 21 21 0 8 0
pfrktable 1344 299 0 279 7 5 2 3 0 8 0
pftag 88 109 0 106 1 0 1 1 0 8 0
pfqueue 264 75 0 75 3 3 0 1 0 8 0
pfstitem 24 24 0 22 1 0 1 1 0 8 0
pfstkey 112 32 0 30 1 0 1 1 0 8 0
pfstate 320 26 0 24 2 1 1 2 0 8 0
pfrule 1360 1295 0 1077 25 6 19 19 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 3056 0 2609 45 17 28 31 0 8 0
art_table 32 3057 0 2609 4 0 4 4 0 8 0
art_node 16 676 0 585 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 4 2 1 1 1 0 8 0
semapl 112 1168 0 1158 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
dino2pl 256 16514 0 15041 93 0 93 93 0 8 0
ffsino 272 16514 0 15041 99 0 99 99 0 8 0
nchpl 144 28932 0 27303 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 117388 0 117387 6 5 1 2 0 8 0
percpumem 16 281 0 241 1 0 1 1 0 8 0
vcpupl 2048 101 0 0 13 0 13 13 0 8 0
vmpool 560 110 0 9 8 0 8 8 0 8 0
pfiaddrpl 120 110 0 82 1 0 1 1 0 8 0
scsiplug 72 7 0 7 1 1 0 1 0 8 0
scxspl 216 73355 0 73355 25 24 1 8 0 8 1
plimitpl 152 786 0 771 1 0 1 1 0 8 0
sigapl 424 10255 0 10189 8 0 8 8 0 8 0
futexpl 64 89609 0 89607 4 3 1 1 0 8 0
knotepl 120 352 0 0 9 1 8 9 0 8 0
kqueuepl 216 1857 0 1849 51 50 1 8 0 8 0
pipepl 336 3126 0 3098 106 103 3 10 0 8 0
fdescpl 496 10219 0 10191 5 1 4 5 0 8 0
filepl 152 99295 0 99053 210 198 12 25 0 8 1
lockfpl 104 2127 0 2125 5 4 1 2 0 8 0
lockfspl 48 599 0 597 1 0 1 1 0 8 0
sessionpl 144 58 0 41 1 0 1 1 0 8 0
pgrppl 48 142 0 125 1 0 1 1 0 8 0
ucredpl 96 28214 0 28199 1 0 1 1 0 8 0
zombiepl 144 10192 0 10189 1 0 1 1 0 8 0
processpl 1064 10255 0 10189 5 0 5 5 0 8 0
procpl 672 30266 0 30188 33 25 8 9 0 8 0
srpgc 96 41 0 41 12 12 0 1 0 8 0
sosppl 168 102 0 102 20 20 0 1 0 8 0
sockpl 480 31653 0 31627 909 899 10 35 0 8 6
mcl64k 65536 34 0 0 4 1 3 3 0 8 0
mcl16k 16384 27 0 0 4 2 2 3 0 8 0
mcl12k 12288 33 0 0 2 0 2 2 0 8 0
mcl9k 9216 25 0 0 2 0 2 2 0 8 0
mcl8k 8192 49 0 0 4 1 3 3 0 8 0
mcl4k 4096 34 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 227 0 0 17 3 14 17 0 8 0
mtagpl 96 621 0 0 12 3 9 11 0 8 0
mbufpl 256 1543 0 0 52 1 51 52 0 8 0
bufpl 288 17751 0 11415 453 0 453 453 0 8 0
anonpl 24 2911182 0 2893958 247 111 136 147 0 186 0
amapchunkpl 152 320100 0 319253 106 69 37 49 0 158 0
amappl16 200 27589 0 26930 168 132 36 46 0 8 1
amappl15 192 3017 0 3010 1 0 1 1 0 8 0
amappl14 184 236 0 231 1 0 1 1 0 8 0
amappl13 176 682 0 677 1 0 1 1 0 8 0
amappl12 168 2691 0 2690 2 1 1 1 0 8 0
amappl11 160 691 0 674 1 0 1 1 0 8 0
amappl10 152 1347 0 1336 1 0 1 1 0 8 0
amappl9 144 842 0 840 1 0 1 1 0 8 0
amappl8 136 2751 0 2646 4 0 4 4 0 8 0
amappl7 128 1618 0 1606 1 0 1 1 0 8 0
amappl6 120 679 0 652 2 1 1 2 0 8 0
amappl5 112 7981 0 7964 1 0 1 1 0 8 0
amappl4 104 3087 0 3051 5 3 2 2 0 8 1
amappl3 96 3959 0 3945 1 0 1 1 0 8 0
amappl2 88 4197 0 4143 3 1 2 3 0 8 0
amappl1 80 187023 0 186454 21 7 14 19 0 8 0
amappl 88 127857 0 127557 10 2 8 8 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 72 138 0 8 3 0 3 3 0 8 0
uaddrrnd 24 10329 0 10200 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 10329 0 10200 1 0 1 1 0 8 0
vmmpekpl 168 86177 0 86095 5 0 5 5 0 8 0
vmmpepl 168 937477 0 934705 347 207 140 149 0 357 3
vmsppl 368 10328 0 10200 14 2 12 12 0 8 0
rwobjpl 56 234206 0 226415 120 7 113 114 0 8 0
pdppl 4096 20665 0 20501 737 567 170 170 0 8 6
pvpl 32 4866693 0 4845239 513 302 211 246 0 265 0
pmappl 248 10328 0 10200 10 1 9 9 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1820 0 847 29 0 29 29 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416
sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437
tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158
getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline]
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481
ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91
ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197
VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
end trace frame: 0xffff8000278b2b80, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff82944ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:577 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:148
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82a133d8) at __mp_lock+0x133 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82a133d8,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x3d3 sys/kern/sched_bsd.c:416
sleep_finish(ffff8000278b24b0,1) at sleep_finish+0x198 sys/kern/kern_synch.c:437
tsleep(fffffd80678a26e0,11,ffffffff82635661,0) at tsleep+0x12c sys/kern/kern_synch.c:158
getblk(fffffd807efc87e0,ca940,4000,0,ffffffffffffffff) at getblk+0x13c sys/kern/vfs_bio.c:1031
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a bio_doread sys/kern/vfs_bio.c:436 [inline]
bread(fffffd807efc87e0,ca940,4000,ffff8000278b2758) at bread+0x3a sys/kern/vfs_bio.c:481
ffs_update(fffffd806e458aa8,1) at ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91
ufs_mkdir(ffff8000278b2950) at ufs_mkdir+0x433 sys/ufs/ufs/ufs_vnops.c:1197
VOP_MKDIR(fffffd807d4d0510,ffff8000278b2ab0,ffff8000278b2ae0,ffff8000278b29e0) at VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404
domkdirat(ffff80002e35fa40,ffffff9c,7f7ffffc0200,1ff) at domkdirat+0x121 sys/kern/vfs_syscalls.c:3101
syscall(ffff8000278b2c60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000278b2c60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc0270, count: -17
ddb{0}> machine ddbcpu 1
Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: 10
ddb{1}> trace
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline]
ktrops(ffff8000ffff4000,ffffffffffffffff,0,df78719c,fffffd806791b160,fffffd807f7d87e0) at ktrops+0x4a sys/kern/kern_ktrace.c:547
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline]
doktrace(fffffd806791b160,4,5f78719c,0,ffff8000ffff4000) at doktrace+0x514 sys/kern/kern_ktrace.c:494
sys_ktrace(ffff8000ffff4000,ffff800023103b28,ffff800023103b80) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535
syscall(ffff800023103bf0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023103bf0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x171a0829a60, count: -5
---
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syzbot
Jun 3, 2022, 9:35:19 PM6/3/22
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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