login: panic: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
246003 50984 0 0 0x4000000 0 syz-executor2761855390
*403270 50984 0 0 0x4000000 1K syz-executor2761855390
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_fault_unwire_locked(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640
uvm_fault_unwire(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601
sys_sysctl(ffff80002119d260,ffff800021245618,ffff800021245670) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
syscall(ffff8000212456e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212456e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x36121081db0, count: 7
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: kernel diagnostic assertion "next != NULL && next->start <= entry->end" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1643
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_fault_unwire_locked(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640
uvm_fault_unwire(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601
sys_sysctl(ffff80002119d260,ffff800021245618,ffff800021245670) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
syscall(ffff8000212456e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212456e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x36121081db0, count: -8
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff8000212453a0
rbx 0xffff800020ce9bff
rdx 0x3fd
rcx 0
rax 0x9f
r8 0x101010101010101
r9 0x8080808080808080
r10 0xde3d8e0dafd86e73
r11 0xfdbe11d988032413
r12 0xffff800020ce9a00
r13 0
r14 0
r15 0x1
rip 0xffffffff81f186c8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800021245390
ss 0
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor2761855390) pid=403270 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=36, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff800021142a88,0xffff80002119ca90
process=0xffff8000ffff8430 user=0xffff800021240000, vmspace=0xfffffd806ce0db90
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
14511 81761 68554 0 2 0 syz-executor2761855390
95571 270963 52824 0 2 0 syz-executor2761855390
50984 508519 13703 0 2 0 syz-executor2761855390
50984 246003 13703 0 7 0x4000000 syz-executor2761855390
*50984 403270 13703 0 7 0x4000000 syz-executor2761855390
7321 511557 76422 0 2 0 syz-executor2761855390
7321 315624 76422 0 3 0x4000080 fsleep syz-executor2761855390
7321 135117 76422 0 3 0x4000080 fsleep syz-executor2761855390
42824 228116 70205 0 2 0 syz-executor2761855390
42824 373253 70205 0 2 0x4000000 syz-executor2761855390
42824 35628 70205 0 2 0x4000000 syz-executor2761855390
70205 351593 68963 0 3 0x80 nanoslp syz-executor2761855390
13703 374445 68963 0 3 0x80 nanoslp syz-executor2761855390
68554 455811 68963 0 3 0x80 nanoslp syz-executor2761855390
76422 230031 68963 0 3 0x80 nanoslp syz-executor2761855390
52824 288564 68963 0 3 0x80 nanoslp syz-executor2761855390
3933 391692 68963 0 3 0x80 nanoslp syz-executor2761855390
62972 405974 68963 0 3 0 biowait syz-executor2761855390
33012 446110 68963 0 3 0x80 nanoslp syz-executor2761855390
68963 374781 78520 0 3 0x82 nanoslp syz-executor2761855390
78520 471934 84764 0 3 0x10008a sigsusp ksh
84764 331231 83994 0 3 0x9a kqread sshd
3039 301515 1 0 3 0x100083 ttyin getty
83994 496002 1 0 3 0x88 kqread sshd
20448 220590 37350 73 3 0x1100090 kqread syslogd
37350 146404 1 0 3 0x100082 netio syslogd
1632 243858 1 0 3 0x100080 kqread resolvd
80977 154047 25423 77 3 0x100092 kqread dhcpleased
60417 443742 25423 77 3 0x100092 kqread dhcpleased
25423 81880 1 0 3 0x80 kqread dhcpleased
7420 101092 0 0 3 0x14200 bored smr
54876 450097 0 0 2 0x14200 zerothread
1573 175049 0 0 3 0x14200 aiodoned aiodoned
97080 240872 0 0 3 0x14200 syncer update
30537 49411 0 0 3 0x14200 cleaner cleaner
14138 273664 0 0 3 0x14200 reaper reaper
40119 193304 0 0 3 0x14200 pgdaemon pagedaemon
78965 259517 0 0 3 0x14200 bored viomb
90076 278011 0 0 3 0x40014200 acpi0 acpi0
20886 310096 0 0 3 0x40014200 idle1
75634 105706 0 0 3 0x14200 bored softnet
81831 300244 0 0 3 0x14200 bored systqmp
18291 92867 0 0 3 0x14200 bored systq
81464 213391 0 0 3 0x40014200 bored softclock
26732 507230 0 0 3 0x40014200 idle0
1 172351 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 50984 (syz-executor2761855390) thread 0xffff800021142a88 (246003)
exclusive rwlock futex r = 0 (0xffffffff828fc810)
#0 witness_lock+0x44d
#1 sys_futex+0x5c sys/kern/sys_futex.c:108
#2 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#2 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#3 Xsyscall+0x128
Process 50984 (syz-executor2761855390) thread 0xffff80002119d260 (403270)
exclusive rwlock amaplk r = 0 (0xfffffd807ac87750)
#0 witness_lock+0x44d
#1 uvm_map_lock_entry+0x36 sys/uvm/uvm_map.c:508
#2 uvm_fault_unwire_locked+0x1e8 sys/uvm/uvm_fault.c:1655
#3 uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601
#4 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
#5 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#5 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#6 Xsyscall+0x128
shared rwlock vmmaplk r = 0 (0xfffffd806ce0dba8)
#0 witness_lock+0x44d
#1 uvm_fault_unwire+0x31 sys/uvm/uvm_fault.c:1600
#2 sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
#3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#4 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829fea58)
#0 witness_lock+0x44d
#1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227
#2 mi_switch+0x3d3 sys/kern/sched_bsd.c:416
#3 sleep_finish+0x198 sys/kern/kern_synch.c:437
#4 rw_enter+0x35a sys/kern/kern_rwlock.c:286
#5 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1758
#6 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:674
#7 uvm_fault+0x102 sys/uvm/uvm_fault.c:602
#8 uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1580
#9 sys_sysctl+0x2d8 sys/kern/kern_sysctl.c:240
#10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#11 Xsyscall+0x128
exclusive rwlock sysctllk r = 0 (0xffffffff82981250)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 sys_sysctl+0x1b3 sys/kern/kern_sysctl.c:233
#3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#4 Xsyscall+0x128
Process 62972 (syz-executor2761855390) thread 0xffff8000ffff6a90 (405974)
exclusive rrwlock inode r = 0 (0xfffffd806cf132c8)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:579
#5 vget+0x1d3 sys/kern/vfs_subr.c:677
#6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318
#8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561
#11 namei+0x36a sys/kern/vfs_lookup.c:245
#12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850
#13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806e424f80)
#0 witness_lock+0x44d
#1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310
#2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461
#3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534
#4 vn_lock+0x84 sys/kern/vfs_vnops.c:579
#5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413
#6 namei+0x36a sys/kern/vfs_lookup.c:245
#7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850
#8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10143 6388K 6419K 78643K 11233 0
pcb 13 8K 8K 78643K 13 0
rtable 62 2K 2K 78643K 108 0
ifaddr 24 7K 7K 78643K 24 0
counters 40 33K 33K 78643K 40 0
ioctlops 0 0K 2K 78643K 25 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1166 73K 73K 78643K 1179 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 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
proc 55 74K 75K 78643K 226 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
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
exec 0 0K 2K 78643K 391 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 149 6K 7K 78643K 198243 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 3 0K 0K 78643K 3 0
temp 19 4694K 4758K 78643K 35623 0
kqueue 11 16K 18K 78643K 24 0
SYN cache 2 16K 16K 78643K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 17 0 14 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
unpcb 136 33 0 20 1 0 1 1 0 8 0
syncache 296 5 0 5 2 2 0 1 0 8 0
tcpcb 736 8 0 5 1 0 1 1 0 8 0
arp 120 2 0 0 1 0 1 1 0 8 0
inpcb 312 25 0 19 1 0 1 1 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 17699 0 16306 88 0 88 88 0 8 0
ffsino 272 17699 0 16306 93 0 93 93 0 8 0
nchpl 144 34149 0 32592 58 0 58 58 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 69244 0 69244 3 2 1 2 0 8 1
percpumem 16 32 0 0 1 0 1 1 0 8 0
scxspl 216 101707 0 101706 20 19 1 8 0 8 0
plimitpl 152 15 0 9 1 0 1 1 0 8 0
sigapl 424 16576 0 16534 5 0 5 5 0 8 0
futexpl 64 39174 0 39171 1 0 1 1 0 8 0
knotepl 120 42 0 0 2 0 2 2 0 8 0
kqueuepl 216 20 0 13 1 0 1 1 0 8 0
pipepl 336 79 0 76 2 1 1 1 0 8 0
fdescpl 496 16562 0 16536 5 1 4 4 0 8 0
filepl 152 17279 0 17226 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 17 0 9 1 0 1 1 0 8 0
pgrppl 48 17 0 9 1 0 1 1 0 8 0
ucredpl 96 64 0 54 1 0 1 1 0 8 0
zombiepl 144 16536 0 16534 2 1 1 1 0 8 0
processpl 1064 16576 0 16534 3 0 3 3 0 8 0
procpl 672 48833 0 48785 5 0 5 5 0 8 1
sockpl 480 75 0 53 4 1 3 4 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 70 0 0 8 0 8 8 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 114 0 0 7 0 7 7 0 8 0
bufpl 288 18234 0 12014 445 0 445 445 0 8 0
anonpl 24 3103013 0 3099509 33 7 26 28 0 186 2
amapchunkpl 152 432863 0 432585 23 8 15 16 0 158 1
amappl16 200 7062 0 7052 3 2 1 2 0 8 0
amappl15 192 59 0 56 1 0 1 1 0 8 0
amappl14 184 2 0 1 1 0 1 1 0 8 0
amappl13 176 32 0 31 2 1 1 1 0 8 0
amappl12 168 8 0 8 2 2 0 1 0 8 0
amappl11 160 38 0 28 1 0 1 1 0 8 0
amappl10 152 3 0 3 1 1 0 1 0 8 0
amappl9 144 456 0 454 1 0 1 1 0 8 0
amappl8 136 360 0 348 1 0 1 1 0 8 0
amappl7 128 60 0 57 1 0 1 1 0 8 0
amappl6 120 107 0 94 1 0 1 1 0 8 0
amappl5 112 173 0 165 1 0 1 1 0 8 0
amappl4 104 16845 0 16821 1 0 1 1 0 8 0
amappl3 96 29028 0 29015 1 0 1 1 0 8 0
amappl2 88 336 0 300 1 0 1 1 0 8 0
amappl1 80 244527 0 244090 13 2 11 11 0 8 0
amappl 88 194352 0 194227 6 2 4 5 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
uaddrrnd 24 16562 0 16536 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 16562 0 16536 1 0 1 1 0 8 0
vmmpekpl 168 118427 0 118408 2 0 2 2 0 8 0
vmmpepl 168 1111414 0 1110163 81 17 64 68 0 357 6
vmsppl 368 16561 0 16536 3 0 3 3 0 8 0
rwobjpl 56 297005 0 290468 95 2 93 94 0 8 0
pdppl 4096 33131 0 33072 87 22 65 65 0 8 6
pvpl 32 4868857 0 4863012 76 21 55 59 0 265 3
pmappl 248 16561 0 16536 3 1 2 2 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 754 0 27 21 0 21 21 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff829afff0) 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
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff800021209440,ffff80000004ad00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 sys/kern/kern_lock.c:147
sleep_setup(ffff8000212095d0,ffff800021142a88,120,ffffffff82583965,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374
rwsleep(ffff800021142a88,ffffffff828fc800,120,ffffffff82583965,0) at rwsleep+0xc0 sys/kern/kern_synch.c:315
futex_wait(361cb3cd2a0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260
sys_futex(ffff800021142a88,ffff800021209760,ffff8000212097c0) at sys_futex+0xf8 sys/kern/sys_futex.c:111
syscall(ffff800021209830) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021209830) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3610e0cfcb0, count: 2
ddb{0}> trace
x86_ipi_db(ffffffff829afff0) 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
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 sys/kern/kern_lock.c:147
intr_handler(ffff800021209440,ffff80000004ad00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829fe850) at __mp_lock+0x122 sys/kern/kern_lock.c:147
sleep_setup(ffff8000212095d0,ffff800021142a88,120,ffffffff82583965,0) at sleep_setup+0xd3 sys/kern/kern_synch.c:374
rwsleep(ffff800021142a88,ffffffff828fc800,120,ffffffff82583965,0) at rwsleep+0xc0 sys/kern/kern_synch.c:315
futex_wait(361cb3cd2a0,1,0,2) at futex_wait+0x13c sys/kern/sys_futex.c:260
sys_futex(ffff800021142a88,ffff800021209760,ffff8000212097c0) at sys_futex+0xf8 sys/kern/sys_futex.c:111
syscall(ffff800021209830) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021209830) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3610e0cfcb0, count: -13
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_fault_unwire_locked(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640
uvm_fault_unwire(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601
sys_sysctl(ffff80002119d260,ffff800021245618,ffff800021245670) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
syscall(ffff8000212456e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212456e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x36121081db0, count: 7
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8258ed9d) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff8260416c,ffffffff8255d97a,66b,ffffffff8256c874) at __assert+0x25 sys/kern/subr_prf.c:161
uvm_fault_unwire_locked(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire_locked+0x2eb sys/uvm/uvm_fault.c:1640
uvm_fault_unwire(fffffd806ce0db90,20000000,20011000) at uvm_fault_unwire+0x3f sys/uvm/uvm_fault.c:1601
sys_sysctl(ffff80002119d260,ffff800021245618,ffff800021245670) at sys_sysctl+0x229 sys/kern/kern_sysctl.c:254
syscall(ffff8000212456e0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000212456e0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x36121081db0, count: -8
ddb{1}>