uvm_fault: db_read_bytes
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syzbot
Feb 20, 2024, 7:48:21 AMFeb 20
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: d8131725ee7c no need to be as strict with table formats on..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1574a09c180000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=623eeb194558cd7e5e96
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/40e21b36b7b6/disk-d8131725.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/d71015bb6c30/bsd-d8131725.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6204ffcedf4c/kernel-d8131725.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+623eeb...@syzkaller.appspotmail.com
kernel: page fault trap, code=10
Stopped at 0x473: uvm_fault(0xffffffff82eb71a0, 0x473, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: 1
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff82eb71a0, 0x473, 0, 1) -> e
ddb{0}> trace
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: -14
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a1022f0
rbx 0x1
rdx 0
rcx 0xffff80002a0fca90
rax 0xffffffff82d20ff0 cpu_info_full_primary+0x1ff0
r8 0xffff80002a102410
r9 0x8080808080808080
r10 0x2a5532c113f72c22
r11 0xa8535cd630925637
r12 0x1
r13 0x1
r14 0xffff80002a102309
r15 0x474
rip 0xffffffff81d0b240 db_read_bytes+0xd0
cs 0x8
rflags 0x10286 __ALIGN_SIZE+0xf286
rsp 0xffff80002a102290
ss 0x10
db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax
ddb{0}> show proc
PROC (idle0) tid=198902 pid=72692 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
runpri=0, usrpri=50, slppri=0, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0x94ac4ab51c7645e, list=0xffff80002a0fcd38,0xffff80002a0fc7f8
process=0xffff8000fffff540 user=0xffff80002a0fd000, vmspace=0xffffffff82eb71a0
estcpu=0, cpticks=33177, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2823 133378 1 0 3 0x80 fsleep syz-executor.0
2823 192160 1 0 3 0x4000080 netio syz-executor.0
80461 248315 82672 0 3 0x82 piperd syz-executor.2
73264 106793 82672 0 3 0x82 piperd syz-executor.5
42056 516473 82672 0 3 0x82 piperd syz-executor.7
3711 249947 82672 0 3 0x82 piperd syz-executor.1
40642 451155 82672 0 3 0x82 piperd syz-executor.6
57987 511926 82672 0 3 0x82 piperd syz-executor.4
15950 150247 1 0 3 0x100083 ttyin getty
32368 66863 82672 0 3 0x82 piperd syz-executor.3
6289 437104 0 0 3 0x14280 nfsidl nfsio
31881 409980 0 0 3 0x14280 nfsidl nfsio
63244 209405 0 0 3 0x14280 nfsidl nfsio
494 164044 0 0 3 0x14280 nfsidl nfsio
47837 321707 0 0 3 0x14280 nfsidl nfsio
77423 73639 0 0 3 0x14280 nfsidl nfsio
42783 329003 0 0 3 0x14280 nfsidl nfsio
64028 388656 0 0 3 0x14280 nfsidl nfsio
16600 105615 0 0 3 0x14280 nfsidl nfsio
49184 40552 0 0 3 0x14280 nfsidl nfsio
57846 248523 0 0 3 0x14280 nfsidl nfsio
57285 152967 0 0 3 0x14280 nfsidl nfsio
63544 318844 0 0 3 0x14280 nfsidl nfsio
26389 497410 0 0 3 0x14280 nfsidl nfsio
27605 333005 0 0 3 0x14280 nfsidl nfsio
14409 9255 0 0 3 0x14280 nfsidl nfsio
83618 80765 0 0 3 0x14280 nfsidl nfsio
60195 294909 0 0 3 0x14280 nfsidl nfsio
15344 403908 0 0 3 0x14280 nfsidl nfsio
52565 208170 0 0 3 0x14280 nfsidl nfsio
50029 13558 0 0 3 0x14200 bored sosplice
82672 226187 58502 0 3 0x2000082 wait syz-fuzzer
82672 202213 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 244832 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 88326 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 482210 58502 0 3 0x6000082 wait syz-fuzzer
82672 328570 58502 0 3 0x6000002 inode syz-fuzzer
82672 443971 58502 0 3 0x6000082 wait syz-fuzzer
82672 160111 58502 0 3 0x6000082 wait syz-fuzzer
82672 259256 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 326286 58502 0 3 0x6000082 wait syz-fuzzer
82672 35376 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 409674 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 520484 58502 0 3 0x6000082 wait syz-fuzzer
82672 97866 58502 0 3 0x6000082 wait syz-fuzzer
82672 325204 58502 0 3 0x6000082 kqread syz-fuzzer
82672 519066 58502 0 3 0x6000082 thrsleep syz-fuzzer
58502 284805 91228 0 3 0x10008a sigsusp ksh
91228 320251 92976 0 3 0x9a kqread sshd
92976 103137 1 0 3 0x88 kqread sshd
21984 120803 34781 74 3 0x1100092 bpf pflogd
34781 495911 1 0 3 0x80 netio pflogd
49310 50806 23420 73 3 0x1100090 kqread syslogd
23420 410360 1 0 3 0x100082 netio syslogd
80223 210300 1 0 3 0x100080 kqread resolvd
53359 503959 47474 77 3 0x100092 kqread dhcpleased
8048 158392 47474 77 3 0x100092 kqread dhcpleased
47474 483790 1 0 3 0x80 kqread dhcpleased
97745 354503 0 0 3 0x14200 bored smr
5146 92345 0 0 3 0x14200 pgzero zerothread
25519 316119 0 0 3 0x14200 aiodoned aiodoned
71491 145350 0 0 3 0x14200 syncer update
42144 151023 0 0 3 0x14200 cleaner cleaner
67648 29088 0 0 3 0x14200 reaper reaper
89594 80782 0 0 3 0x14200 pgdaemon pagedaemon
59828 160590 0 0 3 0x14200 bored viomb
3267 149261 0 0 3 0x40014200 acpi0 acpi0
35543 288936 0 0 7 0x40014200 idle1
91620 510634 0 0 3 0x14200 bored softnet3
50406 98950 0 0 3 0x14200 bored softnet2
28813 95759 0 0 3 0x14200 bored softnet1
1784 15608 0 0 3 0x14200 bored softnet0
53448 83357 0 0 3 0x14200 bored systqmp
87127 399610 0 0 3 0x14200 bored systq
41748 150622 0 0 3 0x14200 tmoslp softclockmp
74989 280446 0 0 3 0x40014200 tmoslp softclock
*72692 198902 0 0 7 0x40014200 idle0
1 480773 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
shared mutex timeout r = 0 (0xffffffff82d563a8)
#0 witness_lock+0x447
#1 timeout_run+0xbb sys/kern/kern_timeout.c:661
#2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
#3 softclock+0x11a sys/kern/kern_timeout.c:754
#4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
#5 Xsoftclock+0x27
#6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#7 sched_idle+0x41e sys/kern/kern_sched.c:183
#8 proc_trampoline+0x10
Process 2823 (syz-executor.0) thread 0xffff800032301ff0 (192160)
exclusive rrwlock inode r = 0 (0xfffffd8067c7cc58)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ufs_lookup+0x1188 sys/ufs/ufs/ufs_lookup.c:573
#7 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#8 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#9 namei+0x55a sys/kern/vfs_lookup.c:250
#10 vn_open+0xf8 sys/kern/vfs_vnops.c:140
#11 vndioctl+0xa0b sys/dev/vnd.c:457
#12 VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264
#13 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525
#14 sys_ioctl+0x4a2
#15 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
#15 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
#16 Xsyscall+0x128
Process 82672 (syz-fuzzer) thread 0xffff80002a17d570 (328570)
exclusive rrwlock inode r = 0 (0xfffffd8067c7c928)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 72692 (idle0) thread 0xffff80002a0fca90 (198902)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e12380)
#0 witness_lock+0x447
#1 softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
#2 Xsoftclock+0x27
#3 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#4 sched_idle+0x41e sys/kern/kern_sched.c:183
#5 proc_trampoline+0x10
shared mutex timeout r = 0 (0xffffffff82d563a8)
#0 witness_lock+0x447
#1 timeout_run+0xbb sys/kern/kern_timeout.c:661
#2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
#3 softclock+0x11a sys/kern/kern_timeout.c:754
#4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
#5 Xsoftclock+0x27
#6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#7 sched_idle+0x41e sys/kern/kern_sched.c:183
#8 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10206 6573K 7130K 166960K 34983 0
pcb 15 16K 18K 166960K 881 0
rtable 243 15K 15K 166960K 1582 0
pf 37 10K 10K 166960K 216 0
ifaddr 49 17K 17K 166960K 225 0
ifgroup 64 2K 2K 166960K 354 0
sysctl 4 1K 1K 166960K 10 0
counters 68 36K 37K 166960K 234 0
ioctlops 0 0K 4K 166960K 2072 0
iov 0 0K 24K 166960K 960 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1518 95K 95K 166960K 8226 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 126 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 1538 0
dirhash 12 2K 2K 166960K 51 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 10 33K 93K 166960K 11180 0
sigio 0 0K 0K 166960K 430 0
proc 70 91K 128K 166960K 1790 0
subproc 104 6K 7K 166960K 471 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 385 0
in_multi 98 7K 7K 166960K 475 0
ether_multi 1 0K 0K 166960K 16 0
mrt 1 0K 0K 166960K 10 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 127 572K 572K 166960K 127 0
exec 0 0K 1K 166960K 1929 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 411 396K 406K 166960K 110761 0
UVM aobj 131 4K 4K 166960K 132 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 409 0
NDP 14 0K 1K 166960K 167 0
temp 83 6772K 6900K 166960K 118342 0
kqueue 12 18K 30K 166960K 801 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 325 0 322 2 1 1 2 0 8 0
rtentry 112 544 0 433 4 0 4 4 0 8 0
unpcb 144 9864 0 9847 103 102 1 10 0 8 0
syncache 320 100 0 100 19 19 0 1 0 8 0
tcpqe 32 198 0 198 15 15 0 1 0 8 0
tcpcb 808 3326 0 3314 111 107 4 17 0 8 0
arp 120 112 0 95 1 0 1 1 0 8 0
inpcb 376 8022 0 8007 126 120 6 22 0 8 0
nd6 136 109 0 83 1 0 1 1 0 8 0
pkpcb 40 20 0 20 5 5 0 1 0 8 0
kcovpl 48 35 0 27 1 0 1 1 0 8 0
ppxss 1168 22 0 22 6 6 0 1 0 8 0
pffrag 232 52 0 52 2 2 0 1 0 482 0
pffrnode 88 52 0 52 2 2 0 1 0 8 0
pffrent 40 212 0 212 2 2 0 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 24 311 0 309 1 0 1 1 0 8 0
pfstkey 128 311 0 309 3 2 1 2 0 8 0
pfstate 376 311 0 309 11 10 1 6 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1837 0 1371 48 18 30 31 0 8 0
art_table 32 1838 0 1371 4 0 4 4 0 8 0
art_node 16 533 0 435 1 0 1 1 0 8 0
semapl 112 1534 0 1524 1 0 1 1 0 8 0
shmpl 112 129 0 1 4 0 4 4 0 8 0
dirhash 1024 43 0 26 3 0 3 3 0 8 0
dino2pl 256 15910 0 14394 95 0 95 95 0 8 0
ffsino 272 15910 0 14394 102 0 102 102 0 8 0
nchpl 144 30632 0 28989 64 0 64 64 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 101173 0 101172 6 5 1 2 0 8 0
percpumem 16 131 0 83 1 0 1 1 0 8 0
vcpupl 2048 145 0 0 19 0 19 19 0 8 0
vmpool 696 157 0 12 14 0 14 14 0 8 0
kstatmem 264 194 0 166 7 5 2 3 0 8 0
scxspl 216 87967 0 87967 30 29 1 8 1 8 1
plimitpl 152 1010 0 994 1 0 1 1 0 8 0
sigapl 424 11478 0 11416 11 2 9 9 0 8 0
futexpl 64 84182 0 84181 1 0 1 1 0 8 0
knotepl 120 646 0 0 11 0 11 11 0 8 0
kqueuepl 216 2031 0 2023 39 38 1 8 0 8 0
pipepl 320 1654 0 1626 46 43 3 8 0 8 0
fdescpl 496 11438 0 11415 18 14 4 5 0 8 0
filepl 152 64776 0 64535 93 77 16 20 0 8 0
lockfpl 104 3890 0 3888 6 5 1 2 0 8 0
lockfspl 48 1443 0 1441 1 0 1 1 0 8 0
sessionpl 144 54 0 37 1 0 1 1 0 8 0
pgrppl 48 152 0 135 1 0 1 1 0 8 0
ucredpl 104 8581 0 8567 1 0 1 1 0 8 0
zombiepl 144 11416 0 11416 1 1 0 1 0 8 0
processpl 1136 11478 0 11416 7 1 6 6 0 8 0
procpl 680 30822 0 30744 11 2 9 9 0 8 0
srpgc 96 38 0 38 14 14 0 1 0 8 0
sosppl 168 92 0 92 16 16 0 1 0 8 0
sockpl 584 18289 0 18254 172 165 7 22 0 8 0
mcl64k 65536 25 0 0 3 0 3 3 0 8 0
mcl16k 16384 25 0 0 3 0 3 3 0 8 0
mcl12k 12288 25 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 18 0 0 3 0 3 3 0 8 0
mcl4k 4096 25 0 0 3 0 3 3 0 8 0
mcl2k2 2112 7 0 0 1 0 1 1 0 8 0
mcl2k 2048 535 0 0 41 9 32 32 0 8 0
mtagpl 96 1140 0 0 22 0 22 22 0 8 0
mbufpl 256 1824 0 0 92 0 92 92 0 8 0
bufpl 280 20865 0 14547 452 0 452 452 0 8 0
anonpl 24 1218079 0 1203935 211 103 108 116 0 186 0
amapchunkpl 152 349777 0 349000 50 9 41 43 0 158 0
amappl16 200 25726 0 25259 134 104 30 38 0 8 0
amappl15 192 16 0 16 4 4 0 1 0 8 0
amappl14 184 263 0 246 2 1 1 2 0 8 0
amappl13 176 32 0 31 1 0 1 1 0 8 0
amappl12 168 12518 0 12490 5 3 2 3 0 8 0
amappl11 160 56 0 42 1 0 1 1 0 8 0
amappl10 152 101 0 86 1 0 1 1 0 8 0
amappl9 144 262 0 262 22 22 0 1 0 8 0
amappl8 136 600 0 481 5 0 5 5 0 8 0
amappl7 128 271 0 244 2 0 2 2 0 8 0
amappl6 120 815 0 797 1 0 1 1 0 8 0
amappl5 112 335 0 323 1 0 1 1 0 8 0
amappl4 104 736 0 700 4 2 2 2 0 8 0
amappl3 96 68399 0 68333 5 2 3 3 0 8 0
amappl2 88 12386 0 12310 3 1 2 3 0 8 0
amappl1 80 50436 0 49886 24 11 13 23 0 8 0
amappl 88 109714 0 109481 8 1 7 7 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 131 0 1 3 0 3 3 0 8 0
uaddrrnd 24 11595 0 11427 2 0 2 2 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 11595 0 11427 2 0 2 2 0 8 0
vmmpekpl 168 81804 0 81717 6 1 5 5 0 8 0
vmmpepl 168 693078 0 690731 400 269 131 150 0 357 0
vmsppl 448 11594 0 11427 24 4 20 20 0 8 0
rwobjpl 56 173690 0 165994 119 6 113 113 0 8 0
pdppl 4096 23197 0 22999 780 582 198 218 0 8 0
pvpl 32 42510 0 0 345 2 343 344 0 265 0
pmappl 248 11594 0 11427 13 2 11 12 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1526 0 900 19 0 19 19 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
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.
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If the report is already addressed, let syzbot know by replying with:
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If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: d8131725ee7c no need to be as strict with table formats on..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1574a09c180000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=623eeb194558cd7e5e96
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/40e21b36b7b6/disk-d8131725.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/d71015bb6c30/bsd-d8131725.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6204ffcedf4c/kernel-d8131725.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+623eeb...@syzkaller.appspotmail.com
kernel: page fault trap, code=10
Stopped at 0x473: uvm_fault(0xffffffff82eb71a0, 0x473, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: 1
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xffffffff82eb71a0, 0x473, 0, 1) -> e
ddb{0}> trace
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: -14
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a1022f0
rbx 0x1
rdx 0
rcx 0xffff80002a0fca90
rax 0xffffffff82d20ff0 cpu_info_full_primary+0x1ff0
r8 0xffff80002a102410
r9 0x8080808080808080
r10 0x2a5532c113f72c22
r11 0xa8535cd630925637
r12 0x1
r13 0x1
r14 0xffff80002a102309
r15 0x474
rip 0xffffffff81d0b240 db_read_bytes+0xd0
cs 0x8
rflags 0x10286 __ALIGN_SIZE+0xf286
rsp 0xffff80002a102290
ss 0x10
db_read_bytes+0xd0: movzbl 0xffffffffffffffff(%r15),%eax
ddb{0}> show proc
PROC (idle0) tid=198902 pid=72692 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
runpri=0, usrpri=50, slppri=0, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0x94ac4ab51c7645e, list=0xffff80002a0fcd38,0xffff80002a0fc7f8
process=0xffff8000fffff540 user=0xffff80002a0fd000, vmspace=0xffffffff82eb71a0
estcpu=0, cpticks=33177, pctcpu=0.0, user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
2823 133378 1 0 3 0x80 fsleep syz-executor.0
2823 192160 1 0 3 0x4000080 netio syz-executor.0
80461 248315 82672 0 3 0x82 piperd syz-executor.2
73264 106793 82672 0 3 0x82 piperd syz-executor.5
42056 516473 82672 0 3 0x82 piperd syz-executor.7
3711 249947 82672 0 3 0x82 piperd syz-executor.1
40642 451155 82672 0 3 0x82 piperd syz-executor.6
57987 511926 82672 0 3 0x82 piperd syz-executor.4
15950 150247 1 0 3 0x100083 ttyin getty
32368 66863 82672 0 3 0x82 piperd syz-executor.3
6289 437104 0 0 3 0x14280 nfsidl nfsio
31881 409980 0 0 3 0x14280 nfsidl nfsio
63244 209405 0 0 3 0x14280 nfsidl nfsio
494 164044 0 0 3 0x14280 nfsidl nfsio
47837 321707 0 0 3 0x14280 nfsidl nfsio
77423 73639 0 0 3 0x14280 nfsidl nfsio
42783 329003 0 0 3 0x14280 nfsidl nfsio
64028 388656 0 0 3 0x14280 nfsidl nfsio
16600 105615 0 0 3 0x14280 nfsidl nfsio
49184 40552 0 0 3 0x14280 nfsidl nfsio
57846 248523 0 0 3 0x14280 nfsidl nfsio
57285 152967 0 0 3 0x14280 nfsidl nfsio
63544 318844 0 0 3 0x14280 nfsidl nfsio
26389 497410 0 0 3 0x14280 nfsidl nfsio
27605 333005 0 0 3 0x14280 nfsidl nfsio
14409 9255 0 0 3 0x14280 nfsidl nfsio
83618 80765 0 0 3 0x14280 nfsidl nfsio
60195 294909 0 0 3 0x14280 nfsidl nfsio
15344 403908 0 0 3 0x14280 nfsidl nfsio
52565 208170 0 0 3 0x14280 nfsidl nfsio
50029 13558 0 0 3 0x14200 bored sosplice
82672 226187 58502 0 3 0x2000082 wait syz-fuzzer
82672 202213 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 244832 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 88326 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 482210 58502 0 3 0x6000082 wait syz-fuzzer
82672 328570 58502 0 3 0x6000002 inode syz-fuzzer
82672 443971 58502 0 3 0x6000082 wait syz-fuzzer
82672 160111 58502 0 3 0x6000082 wait syz-fuzzer
82672 259256 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 326286 58502 0 3 0x6000082 wait syz-fuzzer
82672 35376 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 409674 58502 0 3 0x6000082 thrsleep syz-fuzzer
82672 520484 58502 0 3 0x6000082 wait syz-fuzzer
82672 97866 58502 0 3 0x6000082 wait syz-fuzzer
82672 325204 58502 0 3 0x6000082 kqread syz-fuzzer
82672 519066 58502 0 3 0x6000082 thrsleep syz-fuzzer
58502 284805 91228 0 3 0x10008a sigsusp ksh
91228 320251 92976 0 3 0x9a kqread sshd
92976 103137 1 0 3 0x88 kqread sshd
21984 120803 34781 74 3 0x1100092 bpf pflogd
34781 495911 1 0 3 0x80 netio pflogd
49310 50806 23420 73 3 0x1100090 kqread syslogd
23420 410360 1 0 3 0x100082 netio syslogd
80223 210300 1 0 3 0x100080 kqread resolvd
53359 503959 47474 77 3 0x100092 kqread dhcpleased
8048 158392 47474 77 3 0x100092 kqread dhcpleased
47474 483790 1 0 3 0x80 kqread dhcpleased
97745 354503 0 0 3 0x14200 bored smr
5146 92345 0 0 3 0x14200 pgzero zerothread
25519 316119 0 0 3 0x14200 aiodoned aiodoned
71491 145350 0 0 3 0x14200 syncer update
42144 151023 0 0 3 0x14200 cleaner cleaner
67648 29088 0 0 3 0x14200 reaper reaper
89594 80782 0 0 3 0x14200 pgdaemon pagedaemon
59828 160590 0 0 3 0x14200 bored viomb
3267 149261 0 0 3 0x40014200 acpi0 acpi0
35543 288936 0 0 7 0x40014200 idle1
91620 510634 0 0 3 0x14200 bored softnet3
50406 98950 0 0 3 0x14200 bored softnet2
28813 95759 0 0 3 0x14200 bored softnet1
1784 15608 0 0 3 0x14200 bored softnet0
53448 83357 0 0 3 0x14200 bored systqmp
87127 399610 0 0 3 0x14200 bored systq
41748 150622 0 0 3 0x14200 tmoslp softclockmp
74989 280446 0 0 3 0x40014200 tmoslp softclock
*72692 198902 0 0 7 0x40014200 idle0
1 480773 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
shared mutex timeout r = 0 (0xffffffff82d563a8)
#0 witness_lock+0x447
#1 timeout_run+0xbb sys/kern/kern_timeout.c:661
#2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
#3 softclock+0x11a sys/kern/kern_timeout.c:754
#4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
#5 Xsoftclock+0x27
#6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#7 sched_idle+0x41e sys/kern/kern_sched.c:183
#8 proc_trampoline+0x10
Process 2823 (syz-executor.0) thread 0xffff800032301ff0 (192160)
exclusive rrwlock inode r = 0 (0xfffffd8067c7cc58)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140
#5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ufs_lookup+0x1188 sys/ufs/ufs/ufs_lookup.c:573
#7 VOP_LOOKUP+0x5c sys/kern/vfs_vops.c:85
#8 vfs_lookup+0x6e2 sys/kern/vfs_lookup.c:566
#9 namei+0x55a sys/kern/vfs_lookup.c:250
#10 vn_open+0xf8 sys/kern/vfs_vnops.c:140
#11 vndioctl+0xa0b sys/dev/vnd.c:457
#12 VOP_IOCTL+0x97 sys/kern/vfs_vops.c:264
#13 vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525
#14 sys_ioctl+0x4a2
#15 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline]
#15 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577
#16 Xsyscall+0x128
Process 82672 (syz-fuzzer) thread 0xffff80002a17d570 (328570)
exclusive rrwlock inode r = 0 (0xfffffd8067c7c928)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418
#6 namei+0x55a sys/kern/vfs_lookup.c:250
#7 dounlinkat+0x9d sys/kern/vfs_syscalls.c:1847
#8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 72692 (idle0) thread 0xffff80002a0fca90 (198902)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82e12380)
#0 witness_lock+0x447
#1 softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
#2 Xsoftclock+0x27
#3 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#4 sched_idle+0x41e sys/kern/kern_sched.c:183
#5 proc_trampoline+0x10
shared mutex timeout r = 0 (0xffffffff82d563a8)
#0 witness_lock+0x447
#1 timeout_run+0xbb sys/kern/kern_timeout.c:661
#2 softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
#3 softclock+0x11a sys/kern/kern_timeout.c:754
#4 softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
#5 Xsoftclock+0x27
#6 acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
#7 sched_idle+0x41e sys/kern/kern_sched.c:183
#8 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10206 6573K 7130K 166960K 34983 0
pcb 15 16K 18K 166960K 881 0
rtable 243 15K 15K 166960K 1582 0
pf 37 10K 10K 166960K 216 0
ifaddr 49 17K 17K 166960K 225 0
ifgroup 64 2K 2K 166960K 354 0
sysctl 4 1K 1K 166960K 10 0
counters 68 36K 37K 166960K 234 0
ioctlops 0 0K 4K 166960K 2072 0
iov 0 0K 24K 166960K 960 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1518 95K 95K 166960K 8226 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 126 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 1538 0
dirhash 12 2K 2K 166960K 51 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 10 33K 93K 166960K 11180 0
sigio 0 0K 0K 166960K 430 0
proc 70 91K 128K 166960K 1790 0
subproc 104 6K 7K 166960K 471 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 385 0
in_multi 98 7K 7K 166960K 475 0
ether_multi 1 0K 0K 166960K 16 0
mrt 1 0K 0K 166960K 10 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 127 572K 572K 166960K 127 0
exec 0 0K 1K 166960K 1929 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 411 396K 406K 166960K 110761 0
UVM aobj 131 4K 4K 166960K 132 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 409 0
NDP 14 0K 1K 166960K 167 0
temp 83 6772K 6900K 166960K 118342 0
kqueue 12 18K 30K 166960K 801 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 325 0 322 2 1 1 2 0 8 0
rtentry 112 544 0 433 4 0 4 4 0 8 0
unpcb 144 9864 0 9847 103 102 1 10 0 8 0
syncache 320 100 0 100 19 19 0 1 0 8 0
tcpqe 32 198 0 198 15 15 0 1 0 8 0
tcpcb 808 3326 0 3314 111 107 4 17 0 8 0
arp 120 112 0 95 1 0 1 1 0 8 0
inpcb 376 8022 0 8007 126 120 6 22 0 8 0
nd6 136 109 0 83 1 0 1 1 0 8 0
pkpcb 40 20 0 20 5 5 0 1 0 8 0
kcovpl 48 35 0 27 1 0 1 1 0 8 0
ppxss 1168 22 0 22 6 6 0 1 0 8 0
pffrag 232 52 0 52 2 2 0 1 0 482 0
pffrnode 88 52 0 52 2 2 0 1 0 8 0
pffrent 40 212 0 212 2 2 0 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 24 311 0 309 1 0 1 1 0 8 0
pfstkey 128 311 0 309 3 2 1 2 0 8 0
pfstate 376 311 0 309 11 10 1 6 0 8 0
pfrule 1344 21 0 16 2 1 1 2 0 8 0
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1837 0 1371 48 18 30 31 0 8 0
art_table 32 1838 0 1371 4 0 4 4 0 8 0
art_node 16 533 0 435 1 0 1 1 0 8 0
semapl 112 1534 0 1524 1 0 1 1 0 8 0
shmpl 112 129 0 1 4 0 4 4 0 8 0
dirhash 1024 43 0 26 3 0 3 3 0 8 0
dino2pl 256 15910 0 14394 95 0 95 95 0 8 0
ffsino 272 15910 0 14394 102 0 102 102 0 8 0
nchpl 144 30632 0 28989 64 0 64 64 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 101173 0 101172 6 5 1 2 0 8 0
percpumem 16 131 0 83 1 0 1 1 0 8 0
vcpupl 2048 145 0 0 19 0 19 19 0 8 0
vmpool 696 157 0 12 14 0 14 14 0 8 0
kstatmem 264 194 0 166 7 5 2 3 0 8 0
scxspl 216 87967 0 87967 30 29 1 8 1 8 1
plimitpl 152 1010 0 994 1 0 1 1 0 8 0
sigapl 424 11478 0 11416 11 2 9 9 0 8 0
futexpl 64 84182 0 84181 1 0 1 1 0 8 0
knotepl 120 646 0 0 11 0 11 11 0 8 0
kqueuepl 216 2031 0 2023 39 38 1 8 0 8 0
pipepl 320 1654 0 1626 46 43 3 8 0 8 0
fdescpl 496 11438 0 11415 18 14 4 5 0 8 0
filepl 152 64776 0 64535 93 77 16 20 0 8 0
lockfpl 104 3890 0 3888 6 5 1 2 0 8 0
lockfspl 48 1443 0 1441 1 0 1 1 0 8 0
sessionpl 144 54 0 37 1 0 1 1 0 8 0
pgrppl 48 152 0 135 1 0 1 1 0 8 0
ucredpl 104 8581 0 8567 1 0 1 1 0 8 0
zombiepl 144 11416 0 11416 1 1 0 1 0 8 0
processpl 1136 11478 0 11416 7 1 6 6 0 8 0
procpl 680 30822 0 30744 11 2 9 9 0 8 0
srpgc 96 38 0 38 14 14 0 1 0 8 0
sosppl 168 92 0 92 16 16 0 1 0 8 0
sockpl 584 18289 0 18254 172 165 7 22 0 8 0
mcl64k 65536 25 0 0 3 0 3 3 0 8 0
mcl16k 16384 25 0 0 3 0 3 3 0 8 0
mcl12k 12288 25 0 0 2 0 2 2 0 8 0
mcl9k 9216 17 0 0 2 0 2 2 0 8 0
mcl8k 8192 18 0 0 3 0 3 3 0 8 0
mcl4k 4096 25 0 0 3 0 3 3 0 8 0
mcl2k2 2112 7 0 0 1 0 1 1 0 8 0
mcl2k 2048 535 0 0 41 9 32 32 0 8 0
mtagpl 96 1140 0 0 22 0 22 22 0 8 0
mbufpl 256 1824 0 0 92 0 92 92 0 8 0
bufpl 280 20865 0 14547 452 0 452 452 0 8 0
anonpl 24 1218079 0 1203935 211 103 108 116 0 186 0
amapchunkpl 152 349777 0 349000 50 9 41 43 0 158 0
amappl16 200 25726 0 25259 134 104 30 38 0 8 0
amappl15 192 16 0 16 4 4 0 1 0 8 0
amappl14 184 263 0 246 2 1 1 2 0 8 0
amappl13 176 32 0 31 1 0 1 1 0 8 0
amappl12 168 12518 0 12490 5 3 2 3 0 8 0
amappl11 160 56 0 42 1 0 1 1 0 8 0
amappl10 152 101 0 86 1 0 1 1 0 8 0
amappl9 144 262 0 262 22 22 0 1 0 8 0
amappl8 136 600 0 481 5 0 5 5 0 8 0
amappl7 128 271 0 244 2 0 2 2 0 8 0
amappl6 120 815 0 797 1 0 1 1 0 8 0
amappl5 112 335 0 323 1 0 1 1 0 8 0
amappl4 104 736 0 700 4 2 2 2 0 8 0
amappl3 96 68399 0 68333 5 2 3 3 0 8 0
amappl2 88 12386 0 12310 3 1 2 3 0 8 0
amappl1 80 50436 0 49886 24 11 13 23 0 8 0
amappl 88 109714 0 109481 8 1 7 7 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 131 0 1 3 0 3 3 0 8 0
uaddrrnd 24 11595 0 11427 2 0 2 2 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 11595 0 11427 2 0 2 2 0 8 0
vmmpekpl 168 81804 0 81717 6 1 5 5 0 8 0
vmmpepl 168 693078 0 690731 400 269 131 150 0 357 0
vmsppl 448 11594 0 11427 24 4 20 20 0 8 0
rwobjpl 56 173690 0 165994 119 6 113 113 0 8 0
pdppl 4096 23197 0 22999 780 582 198 218 0 8 0
pvpl 32 42510 0 0 345 2 343 344 0 265 0
pmappl 248 11594 0 11427 13 2 11 12 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1526 0 900 19 0 19 19 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_read_bytes(473,1,ffff80002a102308) at db_read_bytes+0xd0 sys/arch/amd64/amd64/db_memrw.c:85
db_get_value(473,1,0) at db_get_value+0x5d sys/ddb/db_access.c:59
db_disasm(473,0) at db_disasm+0x88
db_trap(6,10) at db_trap+0x116 sys/ddb/db_trap.c:71
db_ktrap(6,10,ffff80002a102590) at db_ktrap+0x208 sys/arch/amd64/amd64/db_interface.c:151
kerntrap(ffff80002a102590) at kerntrap+0x143 sys/arch/amd64/amd64/trap.c:323
alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b
473(fffffd806355cf00,fffffd806355cf00,0,fffffd806355cf00,307,2bf) at 0x473
softclock_process_kclock_timeout(fffffd806355cf00,0) at softclock_process_kclock_timeout+0x1d7 sys/kern/kern_timeout.c:695
softclock(0) at softclock+0x11a sys/kern/kern_timeout.c:754
softintr_dispatch(0) at softintr_dispatch+0xfb sys/arch/amd64/amd64/softintr.c:90
Xsoftclock() at Xsoftclock+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffffffff82d20ff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800029cebff0) at sched_idle+0x41e sys/kern/kern_sched.c:183
end trace frame: 0x0, count: -5
---
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