witness: lock_object uninitialized: ADDR (3)
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syzbot
Apr 1, 2023, 7:09:47 AM4/1/23
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 1e5b016c5082 sync for __syscall removal
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11529a59c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=a37cc4378eaad3e7979c
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cb9a404e2563/disk-1e5b016c.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/27dc2036237a/bsd-1e5b016c.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ea0ea667b9fa/kernel-1e5b016c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a37cc4...@syzkaller.appspotmail.com
witness: lock_object uninitialized: 0xffff800000ef2028
Starting stack trace...
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: 249
End of stack trace.
Stopped at db_enter+0x18: addq $0x8,%rsp
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: -9
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002e3f5810
rbx 0x3
rdx 0
rcx 0
rax 0xffff800021229070
r8 0xffff80002e3f57b0
r9 0x8080808080808080
r10 0xbaca76592c960f65
r11 0x50bd50f4eecca93d
r12 0xffff800000ef2001
r13 0xffff800000ef2028
r14 0
r15 0
rip 0xffffffff81b420b8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80002e3f5800
ss 0
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=325502 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000212b2328,0xffff8000212298a8
process=0xffff8000ffff5d68 user=0xffff80002e3f0000, vmspace=0xfffffd806ba591d0
estcpu=36, cpticks=14, pctcpu=0.0
user=0, sys=7, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
62657 130925 20638 0 2 0 syz-executor.3
20831 381571 13340 0 2 0 syz-executor.5
20831 152176 13340 0 3 0x4000080 fsleep syz-executor.5
21184 8304 27818 0 2 0 syz-executor.1
21184 124720 27818 0 3 0x4000080 fsleep syz-executor.1
21184 37124 27818 0 3 0x4000080 fsleep syz-executor.1
59407 93877 84765 0 2 0x2 syz-executor.4
68072 119662 0 0 3 0x14200 acct acct
40989 110010 84765 0 3 0x82 piperd syz-executor.7
58327 98983 1 0 3 0 vmmapbsy syz-executor.7
58327 238800 1 0 3 0x4000000 vmmaplk syz-executor.7
71514 95903 84765 0 2 0x2 syz-executor.6
13340 285675 84765 0 2 0x482 syz-executor.5
7467 357906 1 0 2 0x100083 getty
90979 520670 1 0 3 0 vmmapbsy syz-executor.4
90979 411788 1 0 3 0x4000000 vmmaplk syz-executor.4
90979 498247 1 0 3 0x4000000 vmmaplk syz-executor.4
90979 114513 1 0 3 0x4000000 vmmaplk syz-executor.4
20638 259622 84765 0 2 0x482 syz-executor.3
27818 364483 84765 0 2 0x482 syz-executor.1
49341 15620 84765 0 3 0x82 piperd syz-executor.2
89642 386514 84765 0 2 0x482 syz-executor.0
48485 5932 0 0 3 0x14280 nfsidl nfsio
27003 385541 0 0 3 0x14280 nfsidl nfsio
75088 330764 0 0 3 0x14280 nfsidl nfsio
24121 89197 0 0 3 0x14280 nfsidl nfsio
74007 296794 0 0 3 0x14280 nfsidl nfsio
17945 61567 0 0 3 0x14280 nfsidl nfsio
35255 215351 0 0 3 0x14280 nfsidl nfsio
11192 384100 0 0 3 0x14280 nfsidl nfsio
81845 297852 0 0 3 0x14280 nfsidl nfsio
68570 200809 0 0 3 0x14280 nfsidl nfsio
59132 334285 0 0 3 0x14280 nfsidl nfsio
62223 493573 0 0 3 0x14280 nfsidl nfsio
61364 441941 0 0 3 0x14280 nfsidl nfsio
48164 216773 0 0 3 0x14280 nfsidl nfsio
86314 319932 0 0 3 0x14280 nfsidl nfsio
69576 63908 0 0 3 0x14280 nfsidl nfsio
44198 445633 0 0 3 0x14280 nfsidl nfsio
39783 115739 0 0 3 0x14280 nfsidl nfsio
68182 85643 0 0 3 0x14280 nfsidl nfsio
31885 154089 0 0 3 0x14280 nfsidl nfsio
95563 202057 0 0 3 0x14200 bored sosplice
84765 165594 5737 0 3 0x82 wait syz-fuzzer
84765 116325 5737 0 2 0x4000482 syz-fuzzer
84765 373825 5737 0 3 0x4000082 wait syz-fuzzer
84765 87810 5737 0 3 0x4000082 wait syz-fuzzer
84765 267962 5737 0 3 0x4000082 wait syz-fuzzer
84765 434438 5737 0 3 0x4000082 wait syz-fuzzer
84765 255977 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 374794 5737 0 3 0x4000082 kqread syz-fuzzer
84765 45490 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 84114 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 491057 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 391106 5737 0 3 0x4000082 wait syz-fuzzer
84765 299198 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 415167 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 426592 5737 0 3 0x4000082 wait syz-fuzzer
84765 356667 5737 0 3 0x4000082 wait syz-fuzzer
5737 410527 60776 0 3 0x10008a sigsusp ksh
60776 216177 3707 0 3 0x9a kqread sshd
3707 164598 1 0 3 0x88 kqread sshd
55475 432428 78799 74 2 0x1100492 pflogd
78799 63499 1 0 3 0x80 netio pflogd
55496 25162 60608 73 2 0x1100090 syslogd
60608 180313 1 0 3 0x100082 netio syslogd
87589 121380 1 0 3 0x100080 kqread resolvd
29236 71200 0 0 3 0x14200 bored smr
78010 274426 0 0 2 0x14200 zerothread
14749 241959 0 0 3 0x14200 aiodoned aiodoned
50727 190798 0 0 3 0x14200 syncer update
52676 341933 0 0 3 0x14200 cleaner cleaner
7668 432987 0 0 3 0x14200 reaper reaper
34954 40688 0 0 3 0x14200 pgdaemon pagedaemon
87758 67467 0 0 3 0x14200 bored viomb
64121 475190 0 0 3 0x40014200 acpi0 acpi0
38306 188589 0 0 7 0x40014200 idle1
20216 101021 0 0 3 0x14200 bored softnet
87617 384734 0 0 3 0x14200 bored softnet
11649 502497 0 0 3 0x14200 bored softnet
5510 144573 0 0 3 0x14200 bored softnet
5074 70761 0 0 3 0x14200 bored systqmp
12342 263469 0 0 3 0x14200 bored systq
13743 370529 0 0 3 0x40014200 bored softclock
61486 337173 0 0 3 0x40014200 idle0
1 394221 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 59407 (syz-executor.4) thread 0xffff8000212b2328 (93877)
exclusive rrwlock inode r = 0 (0xfffffd8068f0cd60)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ec72c50)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#9 Xsyscall+0x128
Process 58327 (syz-executor.7) thread 0xffff800021209960 (238800)
shared rwlock vmmaplk r = 0 (0xfffffd806ba59d10)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5376
#3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293
#4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:829
#5 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#5 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#6 Xsyscall+0x128
Process 71514 (syz-executor.6) thread 0xffff8000212080e8 (95903)
exclusive rrwlock inode r = 0 (0xfffffd806eec7920)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ecb80a8)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#9 Xsyscall+0x128
Process 90979 (syz-executor.4) thread 0xffff8000212295e0 (411788)
shared rwlock vmmaplk r = 0 (0xfffffd8069a8c618)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5376
#3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293
#4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:829
#5 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#5 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#6 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10237 6502K 7025K 78643K 22213 0
pcb 13 18K 23K 78643K 3703 0
rtable 230 17K 18K 78643K 2068 0
ifaddr 90 29K 30K 78643K 783 0
sysctl 2 0K 0K 78643K 4 0
counters 58 35K 36K 78643K 446 0
ioctlops 0 0K 4K 78643K 4221 0
iov 0 0K 28K 78643K 1331 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1433 90K 90K 78643K 10382 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 59 0
VM map 2 1K 1K 78643K 2 0
sem 21 2K 2K 78643K 116 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 89K 78643K 8811 0
sigio 0 0K 0K 78643K 130 0
proc 68 103K 128K 78643K 1667 0
subproc 130 8K 8K 78643K 494 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 342 0
in_multi 85 5K 6K 78643K 595 0
ether_multi 1 0K 0K 78643K 58 0
mrt 1 0K 0K 78643K 100 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 229 1023K 1023K 78643K 229 0
exec 0 0K 1K 78643K 1880 0
pfkey data 0 0K 0K 78643K 3 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 8 62K 64K 78643K 10 0
UVM amap 359 110K 123K 78643K 62184 0
UVM aobj 131 4K 4K 78643K 131 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 369 0
NDP 15 0K 2K 78643K 245 0
temp 149 5779K 6802K 78643K 60042 0
kqueue 6 10K 26K 78643K 624 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> 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 120 465 0 464 5 4 1 3 0 8 0
rtentry 112 581 0 486 4 0 4 4 0 8 0
unpcb 144 7658 0 7650 97 96 1 10 0 8 0
syncache 296 54 0 54 18 18 0 1 0 8 0
tcpqe 32 380 0 380 13 13 0 2 0 8 0
tcpcb 776 2745 0 2741 123 116 7 14 0 8 6
arp 120 86 0 68 1 0 1 1 0 8 0
inpcb 368 9556 0 9551 249 242 7 22 0 8 6
nd6 48 117 0 96 1 0 1 1 0 8 0
pkpcb 40 19 0 19 3 3 0 1 0 8 0
kcovpl 48 38 0 28 1 0 1 1 0 8 0
ppxss 1256 85 0 85 20 20 0 1 0 8 0
pppxif 1456 34 0 34 12 12 0 1 0 8 0
pfstscr 40 120 0 120 5 5 0 1 0 8 0
pffrag 232 100 0 99 6 5 1 1 0 482 0
pffrnode 88 100 0 99 6 5 1 1 0 8 0
pffrent 40 342 0 341 7 6 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfanchor 1280 902 0 453 50 7 43 43 0 8 0
pfstitem 24 209 0 201 1 0 1 1 0 8 0
pfstkey 128 299 0 291 1 0 1 1 0 8 0
pfstate 384 252 0 244 10 9 1 9 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 33 0 33 9 9 0 1 0 8 0
art_heap8 4096 2 0 1 2 1 1 2 0 8 0
art_heap4 256 2383 0 1981 54 26 28 31 0 8 0
art_table 32 2385 0 1982 4 0 4 4 0 8 0
art_node 16 572 0 491 1 0 1 1 0 8 0
sysvmsgpl 40 45 0 19 1 0 1 1 0 8 0
semupl 112 3 0 3 1 1 0 1 0 8 0
semapl 112 110 0 91 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 15981 0 14527 91 0 91 91 0 8 0
ffsino 272 15981 0 14527 97 0 97 97 0 8 0
nchpl 144 27594 0 25943 63 0 63 63 0 8 0
rtmask 32 5 0 5 1 1 0 1 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 109647 0 109645 7 6 1 2 0 8 0
percpumem 16 236 0 194 1 0 1 1 0 8 0
vmpool 696 21 0 21 7 7 0 1 0 8 0
kstatmem 264 336 0 306 10 7 3 3 0 8 0
scsiplug 72 8 0 8 3 3 0 1 0 8 0
scxspl 216 66883 0 66883 27 26 1 8 0 8 1
plimitpl 152 1307 0 1290 1 0 1 1 0 8 0
sigapl 424 9109 0 9044 10 2 8 8 0 8 0
futexpl 64 88865 0 88862 4 3 1 1 0 8 0
knotepl 120 898 0 0 11 0 11 11 0 8 0
kqueuepl 216 1368 0 1363 15 14 1 5 0 8 0
pipepl 320 2349 0 2319 63 59 4 11 0 8 0
fdescpl 496 9064 0 9039 6 2 4 5 0 8 0
filepl 152 77985 0 77731 165 150 15 22 0 8 3
lockfpl 104 1828 0 1827 3 2 1 2 0 8 0
lockfspl 48 634 0 633 1 0 1 1 0 8 0
sessionpl 144 60 0 42 1 0 1 1 0 8 0
pgrppl 48 133 0 115 1 0 1 1 0 8 0
ucredpl 104 23982 0 23973 1 0 1 1 0 8 0
zombiepl 144 10459 0 10458 3 2 1 1 0 8 0
processpl 1072 9109 0 9044 5 0 5 5 0 8 0
procpl 696 24696 0 24609 30 20 10 11 0 8 0
srpgc 96 47 0 47 16 16 0 1 0 8 0
sosppl 168 98 0 98 19 19 0 1 0 8 0
sockpl 488 17730 0 17716 568 557 11 34 0 8 8
mcl64k 65536 15 0 0 2 0 2 2 0 8 0
mcl16k 16384 19 0 0 3 1 2 3 0 8 0
mcl12k 12288 17 0 0 2 1 1 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 25 0 0 3 0 3 3 0 8 0
mcl4k 4096 25 0 0 3 0 3 3 0 8 0
mcl2k2 2112 10 0 0 1 0 1 1 0 8 0
mcl2k 2048 475 0 0 57 17 40 57 0 8 0
mtagpl 96 569 0 0 11 5 6 11 0 8 0
mbufpl 256 1635 0 0 86 0 86 86 0 8 0
bufpl 288 15754 0 9429 453 0 453 453 0 8 0
anonpl 24 1920033 0 1900755 292 157 135 148 0 186 0
amapchunkpl 152 176385 0 175554 98 62 36 45 0 158 0
amappl16 200 21612 0 20897 223 184 39 51 0 8 1
amappl15 192 6 0 6 1 1 0 1 0 8 0
amappl14 184 257 0 245 2 1 1 2 0 8 0
amappl13 176 23 0 21 1 0 1 1 0 8 0
amappl12 168 768 0 764 1 0 1 1 0 8 0
amappl11 160 48 0 40 1 0 1 1 0 8 0
amappl10 152 66 0 54 1 0 1 1 0 8 0
amappl9 144 1025 0 1024 1 0 1 1 0 8 0
amappl8 136 471 0 386 4 0 4 4 0 8 0
amappl7 128 268 0 245 2 0 2 2 0 8 0
amappl6 120 352 0 336 2 1 1 2 0 8 0
amappl5 112 333 0 326 1 0 1 1 0 8 0
amappl4 104 1004 0 966 2 0 2 2 0 8 0
amappl3 96 26984 0 26935 2 0 2 2 0 8 0
amappl2 88 10085 0 10021 3 0 3 3 0 8 0
amappl1 80 209282 0 208600 31 13 18 28 0 8 0
amappl 88 61094 0 60885 8 2 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 9085 0 9059 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 9085 0 9059 1 0 1 1 0 8 0
vmmpekpl 168 75604 0 75537 4 0 4 4 0 8 0
vmmpepl 168 844712 0 841891 422 276 146 173 0 357 6
vmsppl 440 9084 0 9059 6 2 4 5 0 8 0
rwobjpl 56 231782 0 223881 127 12 115 116 0 8 0
pdppl 4096 18177 0 18118 695 628 67 81 0 8 8
pvpl 32 3663032 0 3638477 581 359 222 341 0 265 0
pmappl 248 9084 0 9059 3 1 2 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1828 0 943 27 0 27 27 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: -9
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d68ff0) 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
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175
end trace frame: 0x0, 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: 1e5b016c5082 sync for __syscall removal
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=11529a59c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=a37cc4378eaad3e7979c
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cb9a404e2563/disk-1e5b016c.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/27dc2036237a/bsd-1e5b016c.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ea0ea667b9fa/kernel-1e5b016c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a37cc4...@syzkaller.appspotmail.com
witness: lock_object uninitialized: 0xffff800000ef2028
Starting stack trace...
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: 249
End of stack trace.
Stopped at db_enter+0x18: addq $0x8,%rsp
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: -9
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002e3f5810
rbx 0x3
rdx 0
rcx 0
rax 0xffff800021229070
r8 0xffff80002e3f57b0
r9 0x8080808080808080
r10 0xbaca76592c960f65
r11 0x50bd50f4eecca93d
r12 0xffff800000ef2001
r13 0xffff800000ef2028
r14 0
r15 0
rip 0xffffffff81b420b8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80002e3f5800
ss 0
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.0) pid=325502 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=17, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000212b2328,0xffff8000212298a8
process=0xffff8000ffff5d68 user=0xffff80002e3f0000, vmspace=0xfffffd806ba591d0
estcpu=36, cpticks=14, pctcpu=0.0
user=0, sys=7, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
62657 130925 20638 0 2 0 syz-executor.3
20831 381571 13340 0 2 0 syz-executor.5
20831 152176 13340 0 3 0x4000080 fsleep syz-executor.5
21184 8304 27818 0 2 0 syz-executor.1
21184 124720 27818 0 3 0x4000080 fsleep syz-executor.1
21184 37124 27818 0 3 0x4000080 fsleep syz-executor.1
59407 93877 84765 0 2 0x2 syz-executor.4
68072 119662 0 0 3 0x14200 acct acct
40989 110010 84765 0 3 0x82 piperd syz-executor.7
58327 98983 1 0 3 0 vmmapbsy syz-executor.7
58327 238800 1 0 3 0x4000000 vmmaplk syz-executor.7
71514 95903 84765 0 2 0x2 syz-executor.6
13340 285675 84765 0 2 0x482 syz-executor.5
7467 357906 1 0 2 0x100083 getty
90979 520670 1 0 3 0 vmmapbsy syz-executor.4
90979 411788 1 0 3 0x4000000 vmmaplk syz-executor.4
90979 498247 1 0 3 0x4000000 vmmaplk syz-executor.4
90979 114513 1 0 3 0x4000000 vmmaplk syz-executor.4
20638 259622 84765 0 2 0x482 syz-executor.3
27818 364483 84765 0 2 0x482 syz-executor.1
49341 15620 84765 0 3 0x82 piperd syz-executor.2
89642 386514 84765 0 2 0x482 syz-executor.0
48485 5932 0 0 3 0x14280 nfsidl nfsio
27003 385541 0 0 3 0x14280 nfsidl nfsio
75088 330764 0 0 3 0x14280 nfsidl nfsio
24121 89197 0 0 3 0x14280 nfsidl nfsio
74007 296794 0 0 3 0x14280 nfsidl nfsio
17945 61567 0 0 3 0x14280 nfsidl nfsio
35255 215351 0 0 3 0x14280 nfsidl nfsio
11192 384100 0 0 3 0x14280 nfsidl nfsio
81845 297852 0 0 3 0x14280 nfsidl nfsio
68570 200809 0 0 3 0x14280 nfsidl nfsio
59132 334285 0 0 3 0x14280 nfsidl nfsio
62223 493573 0 0 3 0x14280 nfsidl nfsio
61364 441941 0 0 3 0x14280 nfsidl nfsio
48164 216773 0 0 3 0x14280 nfsidl nfsio
86314 319932 0 0 3 0x14280 nfsidl nfsio
69576 63908 0 0 3 0x14280 nfsidl nfsio
44198 445633 0 0 3 0x14280 nfsidl nfsio
39783 115739 0 0 3 0x14280 nfsidl nfsio
68182 85643 0 0 3 0x14280 nfsidl nfsio
31885 154089 0 0 3 0x14280 nfsidl nfsio
95563 202057 0 0 3 0x14200 bored sosplice
84765 165594 5737 0 3 0x82 wait syz-fuzzer
84765 116325 5737 0 2 0x4000482 syz-fuzzer
84765 373825 5737 0 3 0x4000082 wait syz-fuzzer
84765 87810 5737 0 3 0x4000082 wait syz-fuzzer
84765 267962 5737 0 3 0x4000082 wait syz-fuzzer
84765 434438 5737 0 3 0x4000082 wait syz-fuzzer
84765 255977 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 374794 5737 0 3 0x4000082 kqread syz-fuzzer
84765 45490 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 84114 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 491057 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 391106 5737 0 3 0x4000082 wait syz-fuzzer
84765 299198 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 415167 5737 0 3 0x4000082 thrsleep syz-fuzzer
84765 426592 5737 0 3 0x4000082 wait syz-fuzzer
84765 356667 5737 0 3 0x4000082 wait syz-fuzzer
5737 410527 60776 0 3 0x10008a sigsusp ksh
60776 216177 3707 0 3 0x9a kqread sshd
3707 164598 1 0 3 0x88 kqread sshd
55475 432428 78799 74 2 0x1100492 pflogd
78799 63499 1 0 3 0x80 netio pflogd
55496 25162 60608 73 2 0x1100090 syslogd
60608 180313 1 0 3 0x100082 netio syslogd
87589 121380 1 0 3 0x100080 kqread resolvd
29236 71200 0 0 3 0x14200 bored smr
78010 274426 0 0 2 0x14200 zerothread
14749 241959 0 0 3 0x14200 aiodoned aiodoned
50727 190798 0 0 3 0x14200 syncer update
52676 341933 0 0 3 0x14200 cleaner cleaner
7668 432987 0 0 3 0x14200 reaper reaper
34954 40688 0 0 3 0x14200 pgdaemon pagedaemon
87758 67467 0 0 3 0x14200 bored viomb
64121 475190 0 0 3 0x40014200 acpi0 acpi0
38306 188589 0 0 7 0x40014200 idle1
20216 101021 0 0 3 0x14200 bored softnet
87617 384734 0 0 3 0x14200 bored softnet
11649 502497 0 0 3 0x14200 bored softnet
5510 144573 0 0 3 0x14200 bored softnet
5074 70761 0 0 3 0x14200 bored systqmp
12342 263469 0 0 3 0x14200 bored systq
13743 370529 0 0 3 0x40014200 bored softclock
61486 337173 0 0 3 0x40014200 idle0
1 394221 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 59407 (syz-executor.4) thread 0xffff8000212b2328 (93877)
exclusive rrwlock inode r = 0 (0xfffffd8068f0cd60)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ec72c50)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#9 Xsyscall+0x128
Process 58327 (syz-executor.7) thread 0xffff800021209960 (238800)
shared rwlock vmmaplk r = 0 (0xfffffd806ba59d10)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5376
#3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293
#4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:829
#5 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#5 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#6 Xsyscall+0x128
Process 71514 (syz-executor.6) thread 0xffff8000212080e8 (95903)
exclusive rrwlock inode r = 0 (0xfffffd806eec7920)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353
#6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394
#7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1150
#8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:388
#9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3112
#10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ecb80a8)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3097
#8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#9 Xsyscall+0x128
Process 90979 (syz-executor.4) thread 0xffff8000212295e0 (411788)
shared rwlock vmmaplk r = 0 (0xfffffd8069a8c618)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5376
#3 uvm_map_pageable+0x111 sys/uvm/uvm_map.c:2293
#4 sys_mlock+0x184 sys/uvm/uvm_mmap.c:829
#5 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#5 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
#6 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10237 6502K 7025K 78643K 22213 0
pcb 13 18K 23K 78643K 3703 0
rtable 230 17K 18K 78643K 2068 0
ifaddr 90 29K 30K 78643K 783 0
sysctl 2 0K 0K 78643K 4 0
counters 58 35K 36K 78643K 446 0
ioctlops 0 0K 4K 78643K 4221 0
iov 0 0K 28K 78643K 1331 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1433 90K 90K 78643K 10382 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 59 0
VM map 2 1K 1K 78643K 2 0
sem 21 2K 2K 78643K 116 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 15 53K 89K 78643K 8811 0
sigio 0 0K 0K 78643K 130 0
proc 68 103K 128K 78643K 1667 0
subproc 130 8K 8K 78643K 494 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 342 0
in_multi 85 5K 6K 78643K 595 0
ether_multi 1 0K 0K 78643K 58 0
mrt 1 0K 0K 78643K 100 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 229 1023K 1023K 78643K 229 0
exec 0 0K 1K 78643K 1880 0
pfkey data 0 0K 0K 78643K 3 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 8 62K 64K 78643K 10 0
UVM amap 359 110K 123K 78643K 62184 0
UVM aobj 131 4K 4K 78643K 131 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 369 0
NDP 15 0K 2K 78643K 245 0
temp 149 5779K 6802K 78643K 60042 0
kqueue 6 10K 26K 78643K 624 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> 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 120 465 0 464 5 4 1 3 0 8 0
rtentry 112 581 0 486 4 0 4 4 0 8 0
unpcb 144 7658 0 7650 97 96 1 10 0 8 0
syncache 296 54 0 54 18 18 0 1 0 8 0
tcpqe 32 380 0 380 13 13 0 2 0 8 0
tcpcb 776 2745 0 2741 123 116 7 14 0 8 6
arp 120 86 0 68 1 0 1 1 0 8 0
inpcb 368 9556 0 9551 249 242 7 22 0 8 6
nd6 48 117 0 96 1 0 1 1 0 8 0
pkpcb 40 19 0 19 3 3 0 1 0 8 0
kcovpl 48 38 0 28 1 0 1 1 0 8 0
ppxss 1256 85 0 85 20 20 0 1 0 8 0
pppxif 1456 34 0 34 12 12 0 1 0 8 0
pfstscr 40 120 0 120 5 5 0 1 0 8 0
pffrag 232 100 0 99 6 5 1 1 0 482 0
pffrnode 88 100 0 99 6 5 1 1 0 8 0
pffrent 40 342 0 341 7 6 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfanchor 1280 902 0 453 50 7 43 43 0 8 0
pfstitem 24 209 0 201 1 0 1 1 0 8 0
pfstkey 128 299 0 291 1 0 1 1 0 8 0
pfstate 384 252 0 244 10 9 1 9 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 33 0 33 9 9 0 1 0 8 0
art_heap8 4096 2 0 1 2 1 1 2 0 8 0
art_heap4 256 2383 0 1981 54 26 28 31 0 8 0
art_table 32 2385 0 1982 4 0 4 4 0 8 0
art_node 16 572 0 491 1 0 1 1 0 8 0
sysvmsgpl 40 45 0 19 1 0 1 1 0 8 0
semupl 112 3 0 3 1 1 0 1 0 8 0
semapl 112 110 0 91 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 15981 0 14527 91 0 91 91 0 8 0
ffsino 272 15981 0 14527 97 0 97 97 0 8 0
nchpl 144 27594 0 25943 63 0 63 63 0 8 0
rtmask 32 5 0 5 1 1 0 1 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 109647 0 109645 7 6 1 2 0 8 0
percpumem 16 236 0 194 1 0 1 1 0 8 0
vmpool 696 21 0 21 7 7 0 1 0 8 0
kstatmem 264 336 0 306 10 7 3 3 0 8 0
scsiplug 72 8 0 8 3 3 0 1 0 8 0
scxspl 216 66883 0 66883 27 26 1 8 0 8 1
plimitpl 152 1307 0 1290 1 0 1 1 0 8 0
sigapl 424 9109 0 9044 10 2 8 8 0 8 0
futexpl 64 88865 0 88862 4 3 1 1 0 8 0
knotepl 120 898 0 0 11 0 11 11 0 8 0
kqueuepl 216 1368 0 1363 15 14 1 5 0 8 0
pipepl 320 2349 0 2319 63 59 4 11 0 8 0
fdescpl 496 9064 0 9039 6 2 4 5 0 8 0
filepl 152 77985 0 77731 165 150 15 22 0 8 3
lockfpl 104 1828 0 1827 3 2 1 2 0 8 0
lockfspl 48 634 0 633 1 0 1 1 0 8 0
sessionpl 144 60 0 42 1 0 1 1 0 8 0
pgrppl 48 133 0 115 1 0 1 1 0 8 0
ucredpl 104 23982 0 23973 1 0 1 1 0 8 0
zombiepl 144 10459 0 10458 3 2 1 1 0 8 0
processpl 1072 9109 0 9044 5 0 5 5 0 8 0
procpl 696 24696 0 24609 30 20 10 11 0 8 0
srpgc 96 47 0 47 16 16 0 1 0 8 0
sosppl 168 98 0 98 19 19 0 1 0 8 0
sockpl 488 17730 0 17716 568 557 11 34 0 8 8
mcl64k 65536 15 0 0 2 0 2 2 0 8 0
mcl16k 16384 19 0 0 3 1 2 3 0 8 0
mcl12k 12288 17 0 0 2 1 1 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 25 0 0 3 0 3 3 0 8 0
mcl4k 4096 25 0 0 3 0 3 3 0 8 0
mcl2k2 2112 10 0 0 1 0 1 1 0 8 0
mcl2k 2048 475 0 0 57 17 40 57 0 8 0
mtagpl 96 569 0 0 11 5 6 11 0 8 0
mbufpl 256 1635 0 0 86 0 86 86 0 8 0
bufpl 288 15754 0 9429 453 0 453 453 0 8 0
anonpl 24 1920033 0 1900755 292 157 135 148 0 186 0
amapchunkpl 152 176385 0 175554 98 62 36 45 0 158 0
amappl16 200 21612 0 20897 223 184 39 51 0 8 1
amappl15 192 6 0 6 1 1 0 1 0 8 0
amappl14 184 257 0 245 2 1 1 2 0 8 0
amappl13 176 23 0 21 1 0 1 1 0 8 0
amappl12 168 768 0 764 1 0 1 1 0 8 0
amappl11 160 48 0 40 1 0 1 1 0 8 0
amappl10 152 66 0 54 1 0 1 1 0 8 0
amappl9 144 1025 0 1024 1 0 1 1 0 8 0
amappl8 136 471 0 386 4 0 4 4 0 8 0
amappl7 128 268 0 245 2 0 2 2 0 8 0
amappl6 120 352 0 336 2 1 1 2 0 8 0
amappl5 112 333 0 326 1 0 1 1 0 8 0
amappl4 104 1004 0 966 2 0 2 2 0 8 0
amappl3 96 26984 0 26935 2 0 2 2 0 8 0
amappl2 88 10085 0 10021 3 0 3 3 0 8 0
amappl1 80 209282 0 208600 31 13 18 28 0 8 0
amappl 88 61094 0 60885 8 2 6 6 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 9085 0 9059 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 9085 0 9059 1 0 1 1 0 8 0
vmmpekpl 168 75604 0 75537 4 0 4 4 0 8 0
vmmpepl 168 844712 0 841891 422 276 146 173 0 357 6
vmsppl 440 9084 0 9059 6 2 4 5 0 8 0
rwobjpl 56 231782 0 223881 127 12 115 116 0 8 0
pdppl 4096 18177 0 18118 695 628 67 81 0 8 8
pvpl 32 3663032 0 3638477 581 359 222 341 0 265 0
pmappl 248 9084 0 9059 3 1 2 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1828 0 943 27 0 27 27 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline]
witness_checkorder(ffff800000ef2028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772
rw_enter_write(ffff800000ef2018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000ef2000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000ffff5d68) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff800021229070,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:219
sys_exit(ffff800021229070,ffff80002e3f5a70,ffff80002e3f5ac0) at sys_exit+0x16 sys/kern/kern_exit.c:89
syscall(ffff80002e3f5b40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff80002e3f5b40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc8520, count: -9
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d68ff0) 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
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800020d68ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175
end trace frame: 0x0, 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
Aug 21, 2023, 12:35:43 AM8/21/23
to syzkaller-o...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 7927db41a2d7 Refetch the spc pointer after cpu_switchto() ..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=153dbd7fa80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=156633efa80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9be5f97bcc18/disk-7927db41.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/e076e41db69d/bsd-7927db41.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8ce1a06a5659/kernel-7927db41.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a37cc4...@syzkaller.appspotmail.com
witness: lock_object uninitialized: 0xffff800000d1f028
Starting stack trace...
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
End of stack trace.
Stopped at db_enter+0x1c: addq $0x8,%rsp
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
rbp 0xffff800021278fb0
rbx 0x3
rdx 0x3fd
rcx 0
rax 0x14
r8 0xffff800021278f50
r9 0x8080808080808080
r10 0xffff800021278ea0
r11 0x8895a3ade02837e
r12 0xffff800000d1f001
r13 0xffff800000d1f028
r14 0
r15 0
rip 0xffffffff8227e57c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff800021278fa0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor3149761085) pid=440723 stat=onproc
forw=0xffffffffffffffff, list=0xffff8000211fd5e8,0xffff8000211fc860
process=0xffff8000212a4878 user=0xffff800021274000, vmspace=0xfffffd80704fa758
estcpu=32, cpticks=18, pctcpu=0.0
94806 103873 59323 0 3 0x4000000 futex syz-executor3149761085
94806 293685 59323 0 2 0x4000000 syz-executor3149761085
63560 440350 67160 0 2 0 syz-executor3149761085
63560 201053 67160 0 2 0x4000000 syz-executor3149761085
63560 442968 67160 0 2 0x4000000 syz-executor3149761085
12255 458945 50677 0 2 0 syz-executor3149761085
12255 333634 50677 0 3 0x4000080 fsleep syz-executor3149761085
12255 321556 50677 0 2 0x4000000 syz-executor3149761085
9717 434524 73987 0 2 0 syz-executor3149761085
9717 484276 73987 0 3 0x4000080 fsleep syz-executor3149761085
9717 85378 73987 0 2 0x4000000 syz-executor3149761085
14845 161381 71189 0 2 0 syz-executor3149761085
14845 190847 71189 0 3 0x4000000 futex syz-executor3149761085
14845 6169 71189 0 3 0x4000000 futex syz-executor3149761085
62633 390095 38105 0 2 0 syz-executor3149761085
59323 360680 38105 0 2 0x480 syz-executor3149761085
73987 454176 38105 0 2 0 syz-executor3149761085
50677 97387 38105 0 2 0 syz-executor3149761085
86056 271532 38105 0 2 0x480 syz-executor3149761085
67160 355781 38105 0 2 0x480 syz-executor3149761085
71189 522915 38105 0 2 0 syz-executor3149761085
50742 173961 38105 0 2 0 syz-executor3149761085
38105 59870 23610 0 3 0x82 nanoslp syz-executor3149761085
23610 369958 54962 0 3 0x10008a sigsusp ksh
54962 423014 63632 0 3 0x9a kqread sshd
85021 286739 1 0 2 0x100083 getty
63632 88990 1 0 3 0x88 kqread sshd
5175 278877 62103 74 3 0x1100092 bpf pflogd
62103 122966 1 0 3 0x80 netio pflogd
80049 217119 8760 73 2 0x1100090 syslogd
8760 493444 1 0 3 0x100082 netio syslogd
4445 126743 1 0 3 0x100080 kqread resolvd
20068 156966 78355 77 3 0x100092 kqread dhcpleased
20842 519862 78355 77 3 0x100092 kqread dhcpleased
78355 494196 1 0 3 0x80 kqread dhcpleased
98911 229559 0 0 3 0x14200 bored smr
89184 247254 0 0 2 0x14200 zerothread
21050 447125 0 0 3 0x14200 aiodoned aiodoned
66136 509687 0 0 3 0x14200 syncer update
75320 462461 0 0 3 0x14200 cleaner cleaner
93357 253168 0 0 7 0x14200 reaper
68962 119674 0 0 3 0x14200 pgdaemon pagedaemon
66253 266641 0 0 3 0x14200 bored viomb
39779 113583 0 0 3 0x40014200 acpi0 acpi0
59137 394689 0 0 3 0x40014200 idle1
86763 424428 0 0 3 0x14200 bored softnet3
53917 507915 0 0 3 0x14200 bored softnet2
46502 86860 0 0 3 0x14200 bored softnet1
22052 209879 0 0 3 0x14200 bored softnet0
98524 141146 0 0 3 0x14200 bored systqmp
35795 33914 0 0 3 0x14200 bored systq
7775 110001 0 0 3 0x40014200 bored softclock
57748 339843 0 0 3 0x40014200 idle0
1 447360 0 0 3 0x82 wait init
exclusive rwlock futex r = 0 (0xffffffff82b8c6c0)
#0 witness_lock+0x447
#1 sys_futex+0x60 sys/kern/sys_futex.c:98
#2 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#2 syscall+0x606 sys/arch/amd64/amd64/trap.c:623
#3 Xsyscall+0x128
Process 62633 (syz-executor3149761085) thread 0xffff8000211f2580 (390095)
exclusive rwlock vmmaplk r = 0 (0xfffffd80704fadc0)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 50742 (syz-executor3149761085) thread 0xffff8000212362d0 (173961)
exclusive rwlock vmmaplk r = 0 (0xfffffd806d78cdb8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0xb6 sys/uvm/uvm_map.c:3903
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffd806d78c4a8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 93357 (reaper) thread 0xffff8000211ad310 (253168)
exclusive rwlock kmmaplk r = 0 (0xffffffff82d768b8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvm_unmap+0x7c sys/uvm/uvm_map.c:1855
#4 uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288
#5 reaper+0x168 sys/kern/kern_exit.c:438
#6 proc_trampoline+0x1c
pcb 13 8K 8K 78643K 13 0
rtable 58 1K 2K 78643K 114 0
pf 15 6K 10K 78643K 26 0
ifaddr 13 9K 9K 78643K 13 0
ifgroup 22 1K 1K 78643K 22 0
counters 44 33K 33K 78643K 44 0
ioctlops 0 0K 4K 78643K 1475 0
proc 88 175K 175K 78643K 1438 0
ether_multi 1 0K 0K 78643K 1 0
exec 0 0K 1K 78643K 269 0
UVM aobj 3 2K 2K 78643K 3 0
temp 1 5904K 5968K 78643K 3079 0
kqueue 11 16K 18K 78643K 24 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 144 35 0 20 1 0 1 1 0 8 0
syncache 296 5 0 5 1 1 0 1 0 8 0
tcpqe 32 132 0 132 1 1 0 1 0 8 0
tcpcb 808 8 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 368 33 0 27 1 0 1 1 0 8 0
pfstkey 128 9 0 0 1 0 1 1 0 8 0
pfstate 376 9 0 0 1 0 1 1 0 8 0
art_heap4 256 97 0 0 7 0 7 7 0 8 0
art_table 32 98 0 0 1 0 1 1 0 8 0
art_node 16 22 0 2 1 0 1 1 0 8 0
ffsino 272 1432 0 38 93 0 93 93 0 8 0
nchpl 144 1618 0 49 59 0 59 59 0 8 0
uvmvnodes 80 1446 0 0 30 0 30 30 0 8 0
vnodes 216 1446 0 0 81 0 81 81 0 8 0
namei 1024 5469 0 5466 3 1 2 2 0 8 1
percpumem 16 35 0 0 1 0 1 1 0 8 0
kstatmem 264 8 0 0 1 0 1 1 0 8 0
scxspl 216 4956 0 4956 3 2 1 2 1 8 1
plimitpl 152 17 0 10 1 0 1 1 0 8 0
sigapl 424 576 0 528 7 1 6 6 0 8 0
futexpl 64 636 0 633 1 0 1 1 0 8 0
knotepl 120 41 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 320 94 0 91 1 0 1 1 0 8 0
fdescpl 496 559 0 529 4 0 4 4 0 8 0
filepl 152 1275 0 1217 3 0 3 3 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 104 71 0 59 1 0 1 1 0 8 0
zombiepl 144 570 0 569 2 1 1 1 0 8 0
processpl 1072 576 0 528 4 0 4 4 0 8 0
procpl 696 854 0 794 6 0 6 6 0 8 0
sockpl 488 88 0 64 4 0 4 4 0 8 0
mcl8k 8192 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 280 0 0 35 0 35 35 0 8 0
mtagpl 96 4 0 0 1 0 1 1 0 8 0
mbufpl 256 286 0 0 19 1 18 19 0 8 0
bufpl 288 2570 0 90 178 0 178 178 0 8 0
anonpl 24 183528 0 181215 26 11 15 25 0 186 0
amapchunkpl 152 12639 0 12358 14 1 13 13 0 158 1
amappl16 200 5154 0 5148 5 4 1 5 0 8 0
amappl15 192 31 0 31 1 1 0 1 0 8 0
amappl14 184 152 0 141 1 0 1 1 0 8 0
amappl13 176 14 0 14 1 1 0 1 0 8 0
amappl12 168 1096 0 1076 2 1 1 2 0 8 0
amappl11 160 83 0 69 1 0 1 1 0 8 0
amappl10 152 14 0 14 1 1 0 1 0 8 0
amappl9 144 153 0 153 1 1 0 1 0 8 0
amappl8 136 34 0 32 1 0 1 1 0 8 0
amappl7 128 264 0 248 1 0 1 1 0 8 0
amappl6 120 175 0 160 1 0 1 1 0 8 0
amappl5 112 117 0 106 1 0 1 1 0 8 0
amappl4 104 456 0 423 1 0 1 1 0 8 0
amappl3 96 3356 0 3301 3 1 2 2 0 8 0
amappl2 88 729 0 673 2 0 2 2 0 8 0
amappl1 80 10624 0 10118 13 1 12 12 0 8 0
amappl 88 3524 0 3421 3 0 3 3 0 92 0
uaddrrnd 24 560 0 529 1 0 1 1 0 8 0
vmmpekpl 168 8337 0 8313 2 0 2 2 0 8 0
vmmpepl 168 44197 0 42812 64 1 63 63 0 357 0
vmsppl 464 559 0 529 4 0 4 4 0 8 0
rwobjpl 56 22066 0 19846 33 1 32 32 0 8 0
pdppl 4096 1128 0 1058 84 14 70 70 0 8 0
pvpl 32 298743 0 293171 58 12 46 57 0 265 0
pmappl 248 559 0 529 2 0 2 2 0 8 0
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
ddb{1}> trace
x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
__mp_lock(ffffffff82d6e788) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d6e788) at __mp_lock+0x122 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82d6e788,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470
yield() at yield+0x5b sys/kern/sched_bsd.c:324
pool_get(ffffffff82cbd8c8,1) at pool_get+0x19d sys/kern/subr_pool.c:589
uvm_mapent_alloc(ffffffff82d767c0,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542
uvm_map_clip_start(ffffffff82d767c0,fffffd8070522938,ffff800021298000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722
uvm_unmap_remove(ffffffff82d767c0,ffff800021298000,ffff80002129e000,ffff8000211b9910,0,1,585f903dd8f502a8) at uvm_unmap_remove+0x3a1
uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline]
uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856
uvm_uarea_free(ffff8000211fd330) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288
reaper(ffff8000211ad310) at reaper+0x168 sys/kern/kern_exit.c:438
end trace frame: 0x0, count: -14
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 7927db41a2d7 Refetch the spc pointer after cpu_switchto() ..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=153dbd7fa80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=a37cc4378eaad3e7979c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ae7523a80000
dashboard link: https://syzkaller.appspot.com/bug?extid=a37cc4378eaad3e7979c
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=156633efa80000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9be5f97bcc18/disk-7927db41.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/e076e41db69d/bsd-7927db41.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8ce1a06a5659/kernel-7927db41.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a37cc4...@syzkaller.appspotmail.com
Starting stack trace...
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x742adb957680, count: 249
end of kernel
End of stack trace.
Stopped at db_enter+0x1c: addq $0x8,%rsp
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> trace
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x742adb957680, count: -9
end of kernel
ddb{0}> show registers
rdi 0
rsi 0x4000000000000000
rdi 0
rbp 0xffff800021278fb0
rbx 0x3
rdx 0x3fd
rcx 0
rax 0x14
r8 0xffff800021278f50
r9 0x8080808080808080
r10 0xffff800021278ea0
r11 0x8895a3ade02837e
r12 0xffff800000d1f001
r13 0xffff800000d1f028
r14 0
r15 0
rip 0xffffffff8227e57c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff800021278fa0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor3149761085) pid=440723 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=82, nice=20
forw=0xffffffffffffffff, list=0xffff8000211fd5e8,0xffff8000211fc860
process=0xffff8000212a4878 user=0xffff800021274000, vmspace=0xfffffd80704fa758
estcpu=32, cpticks=18, pctcpu=0.0
user=0, sys=7, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
94806 17526 59323 0 2 0x480 syz-executor3149761085
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
94806 103873 59323 0 3 0x4000000 futex syz-executor3149761085
94806 293685 59323 0 2 0x4000000 syz-executor3149761085
63560 440350 67160 0 2 0 syz-executor3149761085
63560 201053 67160 0 2 0x4000000 syz-executor3149761085
63560 442968 67160 0 2 0x4000000 syz-executor3149761085
12255 458945 50677 0 2 0 syz-executor3149761085
12255 333634 50677 0 3 0x4000080 fsleep syz-executor3149761085
12255 321556 50677 0 2 0x4000000 syz-executor3149761085
9717 434524 73987 0 2 0 syz-executor3149761085
9717 484276 73987 0 3 0x4000080 fsleep syz-executor3149761085
9717 85378 73987 0 2 0x4000000 syz-executor3149761085
14845 161381 71189 0 2 0 syz-executor3149761085
14845 190847 71189 0 3 0x4000000 futex syz-executor3149761085
14845 6169 71189 0 3 0x4000000 futex syz-executor3149761085
62633 390095 38105 0 2 0 syz-executor3149761085
59323 360680 38105 0 2 0x480 syz-executor3149761085
73987 454176 38105 0 2 0 syz-executor3149761085
50677 97387 38105 0 2 0 syz-executor3149761085
86056 271532 38105 0 2 0x480 syz-executor3149761085
67160 355781 38105 0 2 0x480 syz-executor3149761085
71189 522915 38105 0 2 0 syz-executor3149761085
50742 173961 38105 0 2 0 syz-executor3149761085
38105 59870 23610 0 3 0x82 nanoslp syz-executor3149761085
23610 369958 54962 0 3 0x10008a sigsusp ksh
54962 423014 63632 0 3 0x9a kqread sshd
85021 286739 1 0 2 0x100083 getty
63632 88990 1 0 3 0x88 kqread sshd
5175 278877 62103 74 3 0x1100092 bpf pflogd
62103 122966 1 0 3 0x80 netio pflogd
80049 217119 8760 73 2 0x1100090 syslogd
8760 493444 1 0 3 0x100082 netio syslogd
4445 126743 1 0 3 0x100080 kqread resolvd
20068 156966 78355 77 3 0x100092 kqread dhcpleased
20842 519862 78355 77 3 0x100092 kqread dhcpleased
78355 494196 1 0 3 0x80 kqread dhcpleased
98911 229559 0 0 3 0x14200 bored smr
89184 247254 0 0 2 0x14200 zerothread
21050 447125 0 0 3 0x14200 aiodoned aiodoned
66136 509687 0 0 3 0x14200 syncer update
75320 462461 0 0 3 0x14200 cleaner cleaner
93357 253168 0 0 7 0x14200 reaper
68962 119674 0 0 3 0x14200 pgdaemon pagedaemon
66253 266641 0 0 3 0x14200 bored viomb
39779 113583 0 0 3 0x40014200 acpi0 acpi0
59137 394689 0 0 3 0x40014200 idle1
86763 424428 0 0 3 0x14200 bored softnet3
53917 507915 0 0 3 0x14200 bored softnet2
46502 86860 0 0 3 0x14200 bored softnet1
22052 209879 0 0 3 0x14200 bored softnet0
98524 141146 0 0 3 0x14200 bored systqmp
35795 33914 0 0 3 0x14200 bored systq
7775 110001 0 0 3 0x40014200 bored softclock
57748 339843 0 0 3 0x40014200 idle0
1 447360 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 63560 (syz-executor3149761085) thread 0xffff8000211f3b40 (201053)
ddb{0}> show all locks
exclusive rwlock futex r = 0 (0xffffffff82b8c6c0)
#0 witness_lock+0x447
#1 sys_futex+0x60 sys/kern/sys_futex.c:98
#2 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#2 syscall+0x606 sys/arch/amd64/amd64/trap.c:623
#3 Xsyscall+0x128
Process 62633 (syz-executor3149761085) thread 0xffff8000211f2580 (390095)
exclusive rwlock vmmaplk r = 0 (0xfffffd80704fadc0)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 50742 (syz-executor3149761085) thread 0xffff8000212362d0 (173961)
exclusive rwlock vmmaplk r = 0 (0xfffffd806d78cdb8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0xb6 sys/uvm/uvm_map.c:3903
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
exclusive rwlock vmmaplk r = 0 (0xfffffd806d78c4a8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894
#4 process_new+0x304 sys/kern/kern_fork.c:262
#5 fork1+0x318 sys/kern/kern_fork.c:383
#6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
#6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
#7 Xsyscall+0x128
Process 93357 (reaper) thread 0xffff8000211ad310 (253168)
exclusive rwlock kmmaplk r = 0 (0xffffffff82d768b8)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345
#3 uvm_unmap+0x7c sys/uvm/uvm_map.c:1855
#4 uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288
#5 reaper+0x168 sys/kern/kern_exit.c:438
#6 proc_trampoline+0x1c
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10159 6455K 6456K 78643K 11237 0
Type InUse MemUse HighUse Limit Requests Type Lim
pcb 13 8K 8K 78643K 13 0
rtable 58 1K 2K 78643K 114 0
pf 15 6K 10K 78643K 26 0
ifaddr 13 9K 9K 78643K 13 0
ifgroup 22 1K 1K 78643K 22 0
counters 44 33K 33K 78643K 44 0
ioctlops 0 0K 4K 78643K 1475 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1176 74K 74K 78643K 1192 0
log 0 0K 0K 78643K 4 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
UFS mount 5 36K 36K 78643K 5 0
VM map 2 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 1 0K 0K 78643K 1 0
ACPI 1697 195K 286K 78643K 12548 0
proc 88 175K 175K 78643K 1438 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 11 0K 0K 78643K 11 0
NFS daemon 1 16K 16K 78643K 1 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 25 122K 122K 78643K 25 0
MSDOSFS mount 1 16K 16K 78643K 1 0
exec 0 0K 1K 78643K 269 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 8 62K 64K 78643K 10 0
UVM amap 149 7K 7K 78643K 3828 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 4 0K 0K 78643K 4 0
crypto data 1 1K 1K 78643K 1 0
temp 1 5904K 5968K 78643K 3079 0
kqueue 11 16K 18K 78643K 24 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> 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 20 0 17 1 0 1 1 0 8 0
ddb{0}> 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
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 144 35 0 20 1 0 1 1 0 8 0
syncache 296 5 0 5 1 1 0 1 0 8 0
tcpqe 32 132 0 132 1 1 0 1 0 8 0
tcpcb 808 8 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 368 33 0 27 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstitem 24 9 0 0 1 0 1 1 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfstkey 128 9 0 0 1 0 1 1 0 8 0
pfstate 376 9 0 0 1 0 1 1 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 97 0 0 7 0 7 7 0 8 0
art_table 32 98 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
dino2pl 256 1432 0 38 88 0 88 88 0 8 0
ffsino 272 1432 0 38 93 0 93 93 0 8 0
nchpl 144 1618 0 49 59 0 59 59 0 8 0
uvmvnodes 80 1446 0 0 30 0 30 30 0 8 0
vnodes 216 1446 0 0 81 0 81 81 0 8 0
namei 1024 5469 0 5466 3 1 2 2 0 8 1
percpumem 16 35 0 0 1 0 1 1 0 8 0
kstatmem 264 8 0 0 1 0 1 1 0 8 0
scxspl 216 4956 0 4956 3 2 1 2 1 8 1
plimitpl 152 17 0 10 1 0 1 1 0 8 0
sigapl 424 576 0 528 7 1 6 6 0 8 0
futexpl 64 636 0 633 1 0 1 1 0 8 0
knotepl 120 41 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 320 94 0 91 1 0 1 1 0 8 0
fdescpl 496 559 0 529 4 0 4 4 0 8 0
filepl 152 1275 0 1217 3 0 3 3 0 8 0
lockfpl 104 6 0 4 1 0 1 1 0 8 0
lockfspl 48 4 0 2 1 0 1 1 0 8 0
sessionpl 144 18 0 9 1 0 1 1 0 8 0
pgrppl 48 18 0 9 1 0 1 1 0 8 0
ucredpl 104 71 0 59 1 0 1 1 0 8 0
zombiepl 144 570 0 569 2 1 1 1 0 8 0
processpl 1072 576 0 528 4 0 4 4 0 8 0
procpl 696 854 0 794 6 0 6 6 0 8 0
sockpl 488 88 0 64 4 0 4 4 0 8 0
mcl8k 8192 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 280 0 0 35 0 35 35 0 8 0
mtagpl 96 4 0 0 1 0 1 1 0 8 0
mbufpl 256 286 0 0 19 1 18 19 0 8 0
bufpl 288 2570 0 90 178 0 178 178 0 8 0
anonpl 24 183528 0 181215 26 11 15 25 0 186 0
amapchunkpl 152 12639 0 12358 14 1 13 13 0 158 1
amappl16 200 5154 0 5148 5 4 1 5 0 8 0
amappl15 192 31 0 31 1 1 0 1 0 8 0
amappl14 184 152 0 141 1 0 1 1 0 8 0
amappl13 176 14 0 14 1 1 0 1 0 8 0
amappl12 168 1096 0 1076 2 1 1 2 0 8 0
amappl11 160 83 0 69 1 0 1 1 0 8 0
amappl10 152 14 0 14 1 1 0 1 0 8 0
amappl9 144 153 0 153 1 1 0 1 0 8 0
amappl8 136 34 0 32 1 0 1 1 0 8 0
amappl7 128 264 0 248 1 0 1 1 0 8 0
amappl6 120 175 0 160 1 0 1 1 0 8 0
amappl5 112 117 0 106 1 0 1 1 0 8 0
amappl4 104 456 0 423 1 0 1 1 0 8 0
amappl3 96 3356 0 3301 3 1 2 2 0 8 0
amappl2 88 729 0 673 2 0 2 2 0 8 0
amappl1 80 10624 0 10118 13 1 12 12 0 8 0
amappl 88 3524 0 3421 3 0 3 3 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 2 0 0 1 0 1 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
uaddrrnd 24 560 0 529 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 559 0 529 1 0 1 1 0 8 0
vmmpekpl 168 8337 0 8313 2 0 2 2 0 8 0
vmmpepl 168 44197 0 42812 64 1 63 63 0 357 0
vmsppl 464 559 0 529 4 0 4 4 0 8 0
rwobjpl 56 22066 0 19846 33 1 32 32 0 8 0
pdppl 4096 1128 0 1058 84 14 70 70 0 8 0
pvpl 32 298743 0 293171 58 12 46 57 0 265 0
pmappl 248 559 0 529 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 518 0 18 15 0 15 15 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
Invalid cpu 0
ddb{0}> trace
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline]
witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777
rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline]
unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102
unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183
exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x742adb957680, count: -9
end of kernel
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d58ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82d6e788) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82d6e788) at __mp_lock+0x122 sys/kern/kern_lock.c:147
__mp_acquire_count(ffffffff82d6e788,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470
yield() at yield+0x5b sys/kern/sched_bsd.c:324
pool_get(ffffffff82cbd8c8,1) at pool_get+0x19d sys/kern/subr_pool.c:589
uvm_mapent_alloc(ffffffff82d767c0,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542
uvm_map_clip_start(ffffffff82d767c0,fffffd8070522938,ffff800021298000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722
uvm_unmap_remove(ffffffff82d767c0,ffff800021298000,ffff80002129e000,ffff8000211b9910,0,1,585f903dd8f502a8) at uvm_unmap_remove+0x3a1
uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline]
uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856
uvm_uarea_free(ffff8000211fd330) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288
reaper(ffff8000211ad310) at reaper+0x168 sys/kern/kern_exit.c:438
end trace frame: 0x0, count: -14
---
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