uvm_fault: fill_kproc
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syzbot
Jan 29, 2026, 9:00:31 PM (4 days ago) Jan 29
to syzkaller-o...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: b822cddf2b35 rpki-client: fix up r1.29 where the wrong var..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=132b4802580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=78cec2f865ae51ec89bc
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/004f33565a39/disk-b822cddf.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/448faaf963e3/bsd-b822cddf.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8ca462c49e3a/kernel-b822cddf.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+78cec2...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at fill_kproc+0x4a: movq 0x18(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 6051 51958 -1 0x10 0x4000000 0K syz-executor
271851 51958 -1 0x10 0x4000000 1 syz-executor
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: 8
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(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e
ddb{0}> trace
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: -7
ddb{0}> show registers
rdi 0xffff80003c41b9e0
rsi 0xffff8000015c9c00
rbp 0xffff80003c453680
rbx 0xdeaf4152deaf4152
rdx 0
rcx 0xffff80003c3fca80
rax 0
r8 0x7f7fffffc000
r9 0x1
r10 0xcc354c3db3aceb55
r11 0x1bfb65127f2e2c0
r12 0xffff8000015c9c00
r13 0xdeaf4152deaf4152
r14 0xffff8000015c9c00
r15 0xffff80003c41b9e0
rip 0xffffffff82d0b6ca fill_kproc+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c453590
ss 0x10
fill_kproc+0x4a: movq 0x18(%rax),%rax
ddb{0}> show proc
PROC (syz-executor) tid=6051 pid=51958 tcnt=4 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
runpri=82, usrpri=82, slppri=36, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003c3fd778,0xffff80003c3fc7f8
process=0xffff80003c41a6a0 user=0xffff80003c44e000, vmspace=0xfffffd806c7bc9a8
estcpu=32, cpticks=3, pctcpu=0.3, user=0, sys=3, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75264 92811 2982 0 2 0x40 syz-executor
51958 446877 19730 -1 2 0x10 syz-executor
*51958 6051 19730 -1 7 0x4000010 syz-executor
51958 7485 19730 -1 3 0x4000090 fsleep syz-executor
51958 271851 19730 -1 7 0x4000010 syz-executor
55102 25268 35822 0 2 0xc80 syz-executor
55102 483384 35822 0 3 0x4000080 kqread syz-executor
49794 23968 35928 0 3 0x80 nanoslp syz-executor
49794 33449 35928 0 2 0x4000000 syz-executor
49794 401075 35928 0 3 0x4000080 fsleep syz-executor
2982 232339 76715 0 3 0x82 ppwait syz-executor
55404 56874 48842 0 3 0x80 nanoslp syz-executor
55404 522099 48842 0 3 0x4000080 sbwait syz-executor
55404 386245 48842 0 3 0x4000080 fsleep syz-executor
55590 365320 76715 0 2 0xc82 syz-executor
68739 388570 0 0 3 0x14200 acct acct
44943 96400 76715 0 2 0x2 syz-executor
48842 459612 76715 0 3 0x82 nanoslp syz-executor
19730 199972 76715 0 2 0xc82 syz-executor
17340 286211 76715 0 2 0x10000c82 syz-executor
35928 453503 76715 0 2 0xc82 syz-executor
35822 142878 76715 0 3 0x82 nanoslp syz-executor
76715 452476 49957 0 2 0x82 syz-executor
49957 294480 52495 0 3 0x10008a sigsusp ksh
52495 296628 15450 0 3 0x98 kqread sshd-session
15450 302963 82202 0 3 0x92 kqread sshd-session
25706 5235 1 0 3 0x100083 ttyopn getty
82202 185273 1 0 3 0x88 kqread sshd
46257 491902 3088 74 3 0x1100092 bpf pflogd
3088 487204 1 0 3 0x80 sbwait pflogd
41154 489494 13834 73 3 0x1100090 kqread syslogd
13834 251060 1 0 3 0x100082 sbwait syslogd
74567 246820 1 0 3 0x100080 kqread resolvd
61821 341899 47822 77 3 0x100092 kqread dhcpleased
84949 520868 47822 77 3 0x100092 kqread dhcpleased
47822 513806 1 0 3 0x80 kqread dhcpleased
3780 417219 0 0 3 0x14200 bored smr
9151 185329 0 0 2 0x14200 zerothread
16932 56199 0 0 3 0x14200 aiodoned aiodoned
18005 434878 0 0 3 0x14200 syncer update
90813 191185 0 0 3 0x14200 cleaner cleaner
72972 86511 0 0 3 0x14200 reaper reaper
95473 399604 0 0 3 0x14200 pgdaemon pagedaemon
55804 64664 0 0 3 0x14200 bored viomb
66890 151383 0 0 3 0x40014200 acpi0 acpi0
93549 25028 0 0 3 0x40014200 idle1
70341 257093 0 0 3 0x14200 bored softnet1
27395 110283 0 0 3 0x14200 bored softnet0
97891 219619 0 0 3 0x14200 bored systqmp
34101 119710 0 0 3 0x14200 bored systq
54300 5355 0 0 3 0x14200 tmoslp softclockmp
43911 235767 0 0 3 0x40014200 tmoslp softclock
34680 359476 0 0 3 0x40014200 idle0
1 514659 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff839d6a38)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1
#3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112
#4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1
#5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353
#6 uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
#7 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
#8 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
#9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
Process 51958 (syz-executor) thread 0xffff80003c3fca80 (6051)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8394ad80)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2 pool_get+0x27e sys/kern/subr_pool.c:595
#3 _rw_obj_alloc_flags+0x4d sys/kern/kern_rwlock.c:713
#4 amap_alloc+0xd6 sys/uvm/uvm_amap.c:-1
#5 amap_copy+0x6ac sys/uvm/uvm_amap.c:569
#6 uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747
#7 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#8 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283
#9 kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520
#10 alltraps_kern_meltdown+0x7b
#11 copyout+0x64
#12 kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
#13 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
#14 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#16 Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff8388eab8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:191
#3 kern_sysctl_dirs+0x243 sys/kern/kern_sysctl.c:440
#4 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
#5 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#7 Xsyscall+0x128
Process 51958 (syz-executor) thread 0xffff80003c3fc550 (271851)
exclusive kernel: protection fault trap, code=0
Faulted in DDB; continuing...
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11082 12222K 12398K 166960K 12855 0
pcb 18 13K 13K 166960K 113 0
rtable 218 9K 10K 166960K 499 0
pf 38 18K 20K 166960K 101 0
ifaddr 43 7K 8K 166960K 90 0
ifgroup 59 2K 2K 166960K 135 0
sysctl 4 1K 9K 166960K 10 0
counters 80 37K 37K 166960K 164 0
ioctlops 0 0K 4K 166960K 1594 0
iov 0 0K 24K 166960K 27 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1371 86K 86K 166960K 1909 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 12 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 22 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 93K 166960K 584 0
sigio 0 0K 0K 166960K 13 0
proc 72 115K 196K 166960K 654 0
subproc 72 4K 4K 166960K 108 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 2 0K 0K 166960K 41 0
in_multi 88 6K 7K 166960K 144 0
ether_multi 1 0K 0K 166960K 4 0
mrt 0 0K 0K 166960K 5 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 494 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 2 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 229 167K 170K 166960K 7088 0
UVM aobj 20 4K 6K 166960K 24 0
pinsyscall 41 82K 104K 166960K 1803 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 28 0
NDP 14 0K 2K 166960K 64 0
temp 44 8676K 8762K 166960K 38026 0
kqueue 14 22K 30K 166960K 123 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 26 0 0 1 0 1 1 0 8 0
rtpcb 120 62 0 57 1 0 1 1 0 8 0
rtentry 176 154 0 62 6 0 6 6 0 8 0
unpcb 144 249 0 231 3 2 1 2 0 8 0
syncache 336 5 0 5 1 1 0 1 0 8 0
tcpcb 736 156 0 151 8 7 1 7 0 8 0
arp 136 25 0 8 1 0 1 1 0 8 0
inpcb 328 674 0 660 14 5 9 9 0 8 7
ip6q 72 1 0 1 1 1 0 1 0 8 0
ip6af 40 2 0 2 1 1 0 1 0 8 0
nd6 152 36 0 12 2 0 2 2 0 8 0
pkpcb 40 7 0 7 2 1 1 1 0 8 1
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1192 37 0 32 2 1 1 1 0 8 0
pppxif 1504 2 0 2 1 1 0 1 0 8 0
pffrag 232 5 0 1 1 0 1 1 0 482 0
pffrnode 88 5 0 1 1 0 1 1 0 8 0
pffrent 40 8 0 4 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
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 680 0 272 32 3 29 30 0 8 0
art_table 40 682 0 272 5 0 5 5 0 8 0
art_node 32 154 0 72 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 19 0 9 1 0 1 1 0 8 0
shmpl 112 18 0 2 1 0 1 1 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2520 0 998 96 0 96 96 0 8 0
ffsino 296 2520 0 998 119 1 118 118 0 8 0
nchpl 144 3268 0 1545 64 0 64 64 0 8 0
rtmask 32 12 0 10 2 1 1 1 0 8 0
vnodes 216 2830 0 0 158 0 158 158 0 8 0
namei 1024 11222 0 11222 3 2 1 2 0 8 1
percpumem 16 97 0 42 1 0 1 1 0 8 0
vcpupl 3968 1 0 0 1 0 1 1 0 8 0
vmpool 848 3 0 2 1 0 1 1 0 8 0
kstatmem 264 84 0 54 4 1 3 3 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 15341 0 15338 10 2 8 8 1 8 7
plimitpl 152 151 0 134 1 0 1 1 0 8 0
sigapl 424 888 0 840 7 1 6 7 0 8 0
knotepl 120 498 0 0 16 0 16 16 0 8 0
kqueuepl 224 250 0 240 6 5 1 5 0 8 0
pipepl 344 168 0 141 3 0 3 3 0 8 0
fdescpl 528 871 0 841 3 0 3 3 0 8 0
filepl 160 5302 0 5073 18 4 14 16 0 8 3
lockfpl 104 216 0 214 2 1 1 2 0 8 0
lockfspl 48 100 0 98 1 0 1 1 0 8 0
sessionpl 144 28 0 19 1 0 1 1 0 8 0
pgrppl 48 49 0 32 1 0 1 1 0 8 0
ucredpl 104 993 0 978 1 0 1 1 0 8 0
zombiepl 144 912 0 910 1 0 1 1 0 8 0
processpl 1232 888 0 840 5 0 5 5 0 8 0
procpl 664 1600 0 1544 6 0 6 6 0 8 0
sosppl 176 1 0 1 1 1 0 1 0 8 0
sockpl 752 996 0 959 19 8 11 13 0 8 7
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 119 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 24 0 0 3 0 3 3 0 8 0
mtagpl 96 5 0 0 1 0 1 1 0 8 0
mbufpl 256 1153 0 0 73 0 73 73 0 8 0
bufpl 280 6142 0 130 430 0 430 430 0 8 0
anonpl 32 11207 0 0 91 0 91 91 0 246 0
amapchunkpl 152 22317 0 21774 30 5 25 29 0 158 0
amappl16 200 2978 0 2953 25 18 7 23 0 8 3
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 4 0 4 1 1 0 1 0 8 0
amappl13 176 481 0 480 1 0 1 1 0 8 0
amappl12 168 1255 0 1214 3 0 3 3 0 8 0
amappl11 160 6 0 6 1 1 0 1 0 8 0
amappl10 152 55 0 40 1 0 1 1 0 8 0
amappl9 144 250 0 250 1 1 0 1 0 8 0
amappl8 136 34 0 32 1 0 1 1 0 8 0
amappl7 128 94 0 93 1 0 1 1 0 8 0
amappl6 120 329 0 315 1 0 1 1 0 8 0
amappl5 112 79 0 67 1 0 1 1 0 8 0
amappl4 104 442 0 413 1 0 1 1 0 8 0
amappl3 96 3845 0 3761 4 1 3 3 0 8 0
amappl2 88 997 0 919 2 0 2 2 0 8 0
amappl1 80 11640 0 11063 14 0 14 14 0 8 0
amappl 88 6231 0 6079 5 1 4 5 0 92 0
uvmvnodes 80 116 0 0 3 0 3 3 0 8 0
dma65536 65536 1 0 1 1 1 0 1 0 8 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 23 0 4 1 0 1 1 0 8 0
uaddrrnd 24 871 0 841 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 871 0 841 1 0 1 1 0 8 0
vmmpekpl 168 8771 0 8721 3 0 3 3 0 8 0
vmmpepl 168 62921 0 61066 109 8 101 109 0 357 9
vmsppl 488 870 0 841 5 0 5 5 0 8 0
rwobjpl 80 19964 0 18922 32 2 30 32 0 8 0
pdppl 4096 1756 0 1687 113 38 75 86 0 8 6
pvpl 32 19538 0 0 158 0 158 158 0 265 0
pmappl 256 873 0 843 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 359 0 54 10 0 10 10 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1
uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b405346b40, count: 4
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1
uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b405346b40, count: -11
---
This report is generated by a bot. It may contain errors.
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#syz undup
syzbot found the following issue on:
HEAD commit: b822cddf2b35 rpki-client: fix up r1.29 where the wrong var..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=132b4802580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=78cec2f865ae51ec89bc
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/004f33565a39/disk-b822cddf.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/448faaf963e3/bsd-b822cddf.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/8ca462c49e3a/kernel-b822cddf.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+78cec2...@syzkaller.appspotmail.com
uvm_fault(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at fill_kproc+0x4a: movq 0x18(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 6051 51958 -1 0x10 0x4000000 0K syz-executor
271851 51958 -1 0x10 0x4000000 1 syz-executor
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: 8
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(0xfffffd806c7bc9a8, 0x18, 0, 1) -> e
ddb{0}> trace
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: -7
ddb{0}> show registers
rdi 0xffff80003c41b9e0
rsi 0xffff8000015c9c00
rbp 0xffff80003c453680
rbx 0xdeaf4152deaf4152
rdx 0
rcx 0xffff80003c3fca80
rax 0
r8 0x7f7fffffc000
r9 0x1
r10 0xcc354c3db3aceb55
r11 0x1bfb65127f2e2c0
r12 0xffff8000015c9c00
r13 0xdeaf4152deaf4152
r14 0xffff8000015c9c00
r15 0xffff80003c41b9e0
rip 0xffffffff82d0b6ca fill_kproc+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c453590
ss 0x10
fill_kproc+0x4a: movq 0x18(%rax),%rax
ddb{0}> show proc
PROC (syz-executor) tid=6051 pid=51958 tcnt=4 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
runpri=82, usrpri=82, slppri=36, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003c3fd778,0xffff80003c3fc7f8
process=0xffff80003c41a6a0 user=0xffff80003c44e000, vmspace=0xfffffd806c7bc9a8
estcpu=32, cpticks=3, pctcpu=0.3, user=0, sys=3, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75264 92811 2982 0 2 0x40 syz-executor
51958 446877 19730 -1 2 0x10 syz-executor
*51958 6051 19730 -1 7 0x4000010 syz-executor
51958 7485 19730 -1 3 0x4000090 fsleep syz-executor
51958 271851 19730 -1 7 0x4000010 syz-executor
55102 25268 35822 0 2 0xc80 syz-executor
55102 483384 35822 0 3 0x4000080 kqread syz-executor
49794 23968 35928 0 3 0x80 nanoslp syz-executor
49794 33449 35928 0 2 0x4000000 syz-executor
49794 401075 35928 0 3 0x4000080 fsleep syz-executor
2982 232339 76715 0 3 0x82 ppwait syz-executor
55404 56874 48842 0 3 0x80 nanoslp syz-executor
55404 522099 48842 0 3 0x4000080 sbwait syz-executor
55404 386245 48842 0 3 0x4000080 fsleep syz-executor
55590 365320 76715 0 2 0xc82 syz-executor
68739 388570 0 0 3 0x14200 acct acct
44943 96400 76715 0 2 0x2 syz-executor
48842 459612 76715 0 3 0x82 nanoslp syz-executor
19730 199972 76715 0 2 0xc82 syz-executor
17340 286211 76715 0 2 0x10000c82 syz-executor
35928 453503 76715 0 2 0xc82 syz-executor
35822 142878 76715 0 3 0x82 nanoslp syz-executor
76715 452476 49957 0 2 0x82 syz-executor
49957 294480 52495 0 3 0x10008a sigsusp ksh
52495 296628 15450 0 3 0x98 kqread sshd-session
15450 302963 82202 0 3 0x92 kqread sshd-session
25706 5235 1 0 3 0x100083 ttyopn getty
82202 185273 1 0 3 0x88 kqread sshd
46257 491902 3088 74 3 0x1100092 bpf pflogd
3088 487204 1 0 3 0x80 sbwait pflogd
41154 489494 13834 73 3 0x1100090 kqread syslogd
13834 251060 1 0 3 0x100082 sbwait syslogd
74567 246820 1 0 3 0x100080 kqread resolvd
61821 341899 47822 77 3 0x100092 kqread dhcpleased
84949 520868 47822 77 3 0x100092 kqread dhcpleased
47822 513806 1 0 3 0x80 kqread dhcpleased
3780 417219 0 0 3 0x14200 bored smr
9151 185329 0 0 2 0x14200 zerothread
16932 56199 0 0 3 0x14200 aiodoned aiodoned
18005 434878 0 0 3 0x14200 syncer update
90813 191185 0 0 3 0x14200 cleaner cleaner
72972 86511 0 0 3 0x14200 reaper reaper
95473 399604 0 0 3 0x14200 pgdaemon pagedaemon
55804 64664 0 0 3 0x14200 bored viomb
66890 151383 0 0 3 0x40014200 acpi0 acpi0
93549 25028 0 0 3 0x40014200 idle1
70341 257093 0 0 3 0x14200 bored softnet1
27395 110283 0 0 3 0x14200 bored softnet0
97891 219619 0 0 3 0x14200 bored systqmp
34101 119710 0 0 3 0x14200 bored systq
54300 5355 0 0 3 0x14200 tmoslp softclockmp
43911 235767 0 0 3 0x40014200 tmoslp softclock
34680 359476 0 0 3 0x40014200 idle0
1 514659 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff839d6a38)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:-1
#3 uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112
#4 amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1
#5 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353
#6 uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
#7 uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
#8 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
#9 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#10 Xsyscall+0x128
Process 51958 (syz-executor) thread 0xffff80003c3fca80 (6051)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8394ad80)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2 pool_get+0x27e sys/kern/subr_pool.c:595
#3 _rw_obj_alloc_flags+0x4d sys/kern/kern_rwlock.c:713
#4 amap_alloc+0xd6 sys/uvm/uvm_amap.c:-1
#5 amap_copy+0x6ac sys/uvm/uvm_amap.c:569
#6 uvm_fault_check+0x473 sys/uvm/uvm_fault.c:747
#7 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#8 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283
#9 kerntrap+0x19c sys/arch/amd64/amd64/trap.c:520
#10 alltraps_kern_meltdown+0x7b
#11 copyout+0x64
#12 kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
#13 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
#14 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#16 Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff8388eab8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:191
#3 kern_sysctl_dirs+0x243 sys/kern/kern_sysctl.c:440
#4 kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
#5 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
#7 Xsyscall+0x128
Process 51958 (syz-executor) thread 0xffff80003c3fc550 (271851)
exclusive kernel: protection fault trap, code=0
Faulted in DDB; continuing...
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11082 12222K 12398K 166960K 12855 0
pcb 18 13K 13K 166960K 113 0
rtable 218 9K 10K 166960K 499 0
pf 38 18K 20K 166960K 101 0
ifaddr 43 7K 8K 166960K 90 0
ifgroup 59 2K 2K 166960K 135 0
sysctl 4 1K 9K 166960K 10 0
counters 80 37K 37K 166960K 164 0
ioctlops 0 0K 4K 166960K 1594 0
iov 0 0K 24K 166960K 27 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1371 86K 86K 166960K 1909 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 12 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 22 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 93K 166960K 584 0
sigio 0 0K 0K 166960K 13 0
proc 72 115K 196K 166960K 654 0
subproc 72 4K 4K 166960K 108 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 2 0K 0K 166960K 41 0
in_multi 88 6K 7K 166960K 144 0
ether_multi 1 0K 0K 166960K 4 0
mrt 0 0K 0K 166960K 5 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 494 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 2 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 229 167K 170K 166960K 7088 0
UVM aobj 20 4K 6K 166960K 24 0
pinsyscall 41 82K 104K 166960K 1803 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 28 0
NDP 14 0K 2K 166960K 64 0
temp 44 8676K 8762K 166960K 38026 0
kqueue 14 22K 30K 166960K 123 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 26 0 0 1 0 1 1 0 8 0
rtpcb 120 62 0 57 1 0 1 1 0 8 0
rtentry 176 154 0 62 6 0 6 6 0 8 0
unpcb 144 249 0 231 3 2 1 2 0 8 0
syncache 336 5 0 5 1 1 0 1 0 8 0
tcpcb 736 156 0 151 8 7 1 7 0 8 0
arp 136 25 0 8 1 0 1 1 0 8 0
inpcb 328 674 0 660 14 5 9 9 0 8 7
ip6q 72 1 0 1 1 1 0 1 0 8 0
ip6af 40 2 0 2 1 1 0 1 0 8 0
nd6 152 36 0 12 2 0 2 2 0 8 0
pkpcb 40 7 0 7 2 1 1 1 0 8 1
kcovpl 48 12 0 4 1 0 1 1 0 8 0
ppxss 1192 37 0 32 2 1 1 1 0 8 0
pppxif 1504 2 0 2 1 1 0 1 0 8 0
pffrag 232 5 0 1 1 0 1 1 0 482 0
pffrnode 88 5 0 1 1 0 1 1 0 8 0
pffrent 40 8 0 4 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
rttmr 136 1 0 1 1 1 0 1 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 680 0 272 32 3 29 30 0 8 0
art_table 40 682 0 272 5 0 5 5 0 8 0
art_node 32 154 0 72 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 19 0 9 1 0 1 1 0 8 0
shmpl 112 18 0 2 1 0 1 1 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2520 0 998 96 0 96 96 0 8 0
ffsino 296 2520 0 998 119 1 118 118 0 8 0
nchpl 144 3268 0 1545 64 0 64 64 0 8 0
rtmask 32 12 0 10 2 1 1 1 0 8 0
vnodes 216 2830 0 0 158 0 158 158 0 8 0
namei 1024 11222 0 11222 3 2 1 2 0 8 1
percpumem 16 97 0 42 1 0 1 1 0 8 0
vcpupl 3968 1 0 0 1 0 1 1 0 8 0
vmpool 848 3 0 2 1 0 1 1 0 8 0
kstatmem 264 84 0 54 4 1 3 3 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 15341 0 15338 10 2 8 8 1 8 7
plimitpl 152 151 0 134 1 0 1 1 0 8 0
sigapl 424 888 0 840 7 1 6 7 0 8 0
knotepl 120 498 0 0 16 0 16 16 0 8 0
kqueuepl 224 250 0 240 6 5 1 5 0 8 0
pipepl 344 168 0 141 3 0 3 3 0 8 0
fdescpl 528 871 0 841 3 0 3 3 0 8 0
filepl 160 5302 0 5073 18 4 14 16 0 8 3
lockfpl 104 216 0 214 2 1 1 2 0 8 0
lockfspl 48 100 0 98 1 0 1 1 0 8 0
sessionpl 144 28 0 19 1 0 1 1 0 8 0
pgrppl 48 49 0 32 1 0 1 1 0 8 0
ucredpl 104 993 0 978 1 0 1 1 0 8 0
zombiepl 144 912 0 910 1 0 1 1 0 8 0
processpl 1232 888 0 840 5 0 5 5 0 8 0
procpl 664 1600 0 1544 6 0 6 6 0 8 0
sosppl 176 1 0 1 1 1 0 1 0 8 0
sockpl 752 996 0 959 19 8 11 13 0 8 7
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 119 0 0 15 0 15 15 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 24 0 0 3 0 3 3 0 8 0
mtagpl 96 5 0 0 1 0 1 1 0 8 0
mbufpl 256 1153 0 0 73 0 73 73 0 8 0
bufpl 280 6142 0 130 430 0 430 430 0 8 0
anonpl 32 11207 0 0 91 0 91 91 0 246 0
amapchunkpl 152 22317 0 21774 30 5 25 29 0 158 0
amappl16 200 2978 0 2953 25 18 7 23 0 8 3
amappl15 192 7 0 7 1 1 0 1 0 8 0
amappl14 184 4 0 4 1 1 0 1 0 8 0
amappl13 176 481 0 480 1 0 1 1 0 8 0
amappl12 168 1255 0 1214 3 0 3 3 0 8 0
amappl11 160 6 0 6 1 1 0 1 0 8 0
amappl10 152 55 0 40 1 0 1 1 0 8 0
amappl9 144 250 0 250 1 1 0 1 0 8 0
amappl8 136 34 0 32 1 0 1 1 0 8 0
amappl7 128 94 0 93 1 0 1 1 0 8 0
amappl6 120 329 0 315 1 0 1 1 0 8 0
amappl5 112 79 0 67 1 0 1 1 0 8 0
amappl4 104 442 0 413 1 0 1 1 0 8 0
amappl3 96 3845 0 3761 4 1 3 3 0 8 0
amappl2 88 997 0 919 2 0 2 2 0 8 0
amappl1 80 11640 0 11063 14 0 14 14 0 8 0
amappl 88 6231 0 6079 5 1 4 5 0 92 0
uvmvnodes 80 116 0 0 3 0 3 3 0 8 0
dma65536 65536 1 0 1 1 1 0 1 0 8 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 23 0 4 1 0 1 1 0 8 0
uaddrrnd 24 871 0 841 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 871 0 841 1 0 1 1 0 8 0
vmmpekpl 168 8771 0 8721 3 0 3 3 0 8 0
vmmpepl 168 62921 0 61066 109 8 101 109 0 357 9
vmsppl 488 870 0 841 5 0 5 5 0 8 0
rwobjpl 80 19964 0 18922 32 2 30 32 0 8 0
pdppl 4096 1756 0 1687 113 38 75 86 0 8 6
pvpl 32 19538 0 0 158 0 158 158 0 265 0
pmappl 256 873 0 843 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 359 0 54 10 0 10 10 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
fill_kproc(ffff80003c41b9e0,ffff8000015c9c00,deaf4152deaf4152,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2052
sysctl_doproc(ffff80003c453a18,4,200000000100,ffff80003c453a48) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2014
kern_sysctl_dirs(42,ffff80003c453a18,4,200000000100,ffff80003c453a48,0,30e1732631658638,ffff80003c453a18) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:442
kern_sysctl(ffff80003c453a14,5,200000000100,ffff80003c453a48,0,ffac,7503fe8ffb619f3e) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733
sys_sysctl(ffff80003c3fca80,ffff80003c453b80,ffff80003c453ad0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c453b80) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c453b80) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b37f7a9840, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1
uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b405346b40, count: 4
ddb{1}> trace
x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff8394a580) at __mp_lock+0x192 sys/kern/kern_lock.c:173
uvn_detach(fffffd806c1b8380) at uvn_detach+0x7e sys/uvm/uvm_vnode.c:-1
uvm_unmap_detach(ffff80003c468d20,0) at uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1364
uvm_mapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,0,3090713) at uvm_mapanon+0x85d sys/uvm/uvm_map.c:910
uvm_mmapanon(fffffd806c7bc9a8,ffff80003c468f48,400000,3,7,5012,4662ce0aae21b798,fffffd806c7bc9a8) at uvm_mmapanon+0x1d0 sys/uvm/uvm_mmap.c:1029
sys_mmap(ffff80003c3fc550,ffff80003c4690b0,ffff80003c469000) at sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426
syscall(ffff80003c4690b0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c4690b0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b405346b40, count: -11
---
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