uvm_fault(0xffffffff827c7318, 0xfffffd0000000008, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ml_dequeue+0x28: movq 0x8(%r14),%rax
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffffff827c7318, 0xfffffd0000000008, 0, 1) -> e
ml_dequeue(ffff8000006b5048) at ml_dequeue+0x28 sys/kern/uipc_mbuf.c:1597
end trace frame: 0xffff80001e7bd6e0, count: 0
ddb> trace
ml_dequeue(ffff8000006b5048) at ml_dequeue+0x28 sys/kern/uipc_mbuf.c:1597
ifq_deq_sleep(ffff800000ac2a78,ffff80001e7bd6f8,10,117,ffffffff823e81ce,ffff800000ac2e04) at ifq_deq_sleep+0x118 sys/net/ifq.c:408
tun_dev_read(5d00,ffff80001e7bd9c8,10) at tun_dev_read+0xd6 sys/net/if_tun.c:778
spec_read(ffff80001e7bd810) at spec_read+0xe9 sys/kern/spec_vnops.c:222
VOP_READ(fffffd805d7d9c30,ffff80001e7bd9c8,10,fffffd806c3bfba0) at VOP_READ+0xbf sys/kern/vfs_vops.c:247
vn_read(fffffd800605a880,ffff80001e7bd9c8,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375
dofilereadv(ffff80001d718600,f0,ffff80001e7bd9c8,0,ffff80001e7bdab0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237
sys_read(ffff80001d718600,ffff80001e7bda60,ffff80001e7bdab0) at sys_read+0x83 sys/kern/sys_generic.c:157
syscall(ffff80001e7bdb30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x879d77257a0, count: -10
ddb> show registers
rdi 0xffffffff822dcfc0 ml_dequeue+0x20
rsi 0x4c
rbp 0xffff80001e7bd630
rbx 0xfffffd0000000000
rdx 0x4d
rcx 0xffff80001d979000
rax 0xffff80001d979000
r8 0xffffffff823e81ce pp_r600_decoded_lanes+0x868c
r9 0xffff800000ac2e04
r10 0xd0e9d2395d224244
r11 0x78b1e3eef4855cb5
r12 0x117
r13 0xffff800000ac2e04
r14 0xfffffd0000000000
r15 0xffff8000006b5048
rip 0xffffffff822dcfc8 ml_dequeue+0x28
cs 0x8
rflags 0x10286 __ALIGN_SIZE+0xf286
rsp 0xffff80001e7bd600
ss 0x10
ml_dequeue+0x28: movq 0x8(%r14),%rax
ddb> show proc
PROC (syz-executor.0) pid=465019 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff80001d7174f0,0xffffffff82837578
process=0xffff8000ffffb5a0 user=0xffff80001e7b8000, vmspace=0xfffffd8053992560
estcpu=36, cpticks=6, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
56291 19233 24211 0 2 0 syz-executor.0
56291 503366 24211 0 3 0x4000080 kqread syz-executor.0
*56291 465019 24211 0 7 0x4000000 syz-executor.0
14285 190275 81283 0 3 0x80 nanosleep syz-executor.1
14285 69723 81283 0 3 0x4000080 netio syz-executor.1
14285 252221 81283 0 3 0x4000080 fsleep syz-executor.1
81283 374883 75250 0 3 0x82 nanosleep syz-executor.1
24211 180565 75250 0 3 0x82 nanosleep syz-executor.0
75250 86867 20989 0 3 0x82 thrsleep syz-fuzzer
75250 189142 20989 0 3 0x4000082 thrsleep syz-fuzzer
75250 279362 20989 0 3 0x4000082 kqread syz-fuzzer
75250 413279 20989 0 3 0x4000082 thrsleep syz-fuzzer
75250 43170 20989 0 3 0x4000082 thrsleep syz-fuzzer
75250 51912 20989 0 3 0x4000082 thrsleep syz-fuzzer
75250 151765 20989 0 3 0x4000082 thrsleep syz-fuzzer
20989 97900 6015 0 3 0x10008a pause ksh
6015 347183 16058 0 3 0x92 select sshd
84271 373293 1 0 3 0x100083 ttyin getty
16058 144 1 0 3 0x80 select sshd
27579 323852 1374 73 3 0x100090 kqread syslogd
1374 247806 1 0 3 0x100082 netio syslogd
30202 73315 1 77 3 0x100090 poll dhclient
60525 416991 1 0 3 0x80 poll dhclient
67166 480680 0 0 3 0x14200 bored smr
70830 57776 0 0 2 0x14200 zerothread
20838 335013 0 0 3 0x14200 aiodoned aiodoned
62187 1843 0 0 3 0x14200 syncer update
95721 377044 0 0 3 0x14200 cleaner cleaner
66085 249923 0 0 3 0x14200 reaper reaper
74335 307777 0 0 3 0x14200 pgdaemon pagedaemon
2909 234440 0 0 3 0x14200 bored crynlk
14381 1572 0 0 3 0x14200 bored crypto
54379 222107 0 0 3 0x40014200 acpi0 acpi0
37491 221354 0 0 3 0x14200 bored softnet
78106 465179 0 0 3 0x14200 bored systqmp
31751 421842 0 0 3 0x14200 bored systq
44361 70531 0 0 3 0x40014200 bored softclock
9312 136579 0 0 3 0x40014200 idle0
1 446460 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9482 6399K 6591K 78643K 10730 0
pcb 13 8K 8K 78643K 33 0
rtable 100 3K 6K 78643K 258 0
ifaddr 55 12K 13K 78643K 96 0
counters 21 16K 16K 78643K 25 0
ioctlops 0 0K 4K 78643K 33 0
iov 0 0K 12K 78643K 24 0
mount 1 1K 1K 78643K 1 0
vnodes 1220 77K 77K 78643K 1278 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 3 0
VM map 2 0K 0K 78643K 2 0
sem 10 0K 0K 78643K 12 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1809 195K 288K 78643K 12938 0
file desc 6 17K 25K 78643K 136 0
proc 48 38K 54K 78643K 362 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 8 0
in_multi 42 2K 2K 78643K 58 0
ether_multi 1 0K 0K 78643K 3 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 55 254K 254K 78643K 55 0
exec 0 0K 1K 78643K 196 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 125 39K 39K 78643K 1163 0
UVM aobj 6 2K 2K 78643K 6 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 41 0
NDP 8 0K 0K 78643K 17 0
temp 86 3842K 3907K 78643K 2144 0
kqueue 5 8K 12K 78643K 17 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 6 0 0 1 0 1 1 0 8 0
rtpcb 80 27 0 25 1 0 1 1 0 8 0
rtentry 112 49 0 8 2 0 2 2 0 8 0
unpcb 120 99 0 89 1 0 1 1 0 8 0
syncache 264 4 0 4 1 1 0 1 0 8 0
tcpqe 32 81 0 81 1 1 0 1 0 8 0
tcpcb 544 62 0 58 1 0 1 1 0 8 0
ipq 40 2 0 2 1 0 1 1 0 8 1
ipqe 40 4 0 4 1 0 1 1 0 8 1
inpcb 280 244 0 237 2 0 2 2 0 8 1
nd6 48 7 0 3 1 0 1 1 0 8 0
pfrktable 1344 14 0 14 1 0 1 1 0 8 1
pftag 88 2 0 2 1 0 1 1 0 8 1
pfrule 1360 4 0 2 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 212 0 40 13 0 13 13 0 8 0
art_table 32 213 0 40 2 0 2 2 0 8 0
art_node 16 48 0 10 1 0 1 1 0 8 0
sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0
semapl 112 8 0 0 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1570 0 171 88 0 88 88 0 8 0
ffsino 240 1570 0 171 83 0 83 83 0 8 0
nchpl 144 1929 0 325 60 0 60 60 0 8 0
uvmvnodes 72 1647 0 0 30 0 30 30 0 8 0
vnodes 208 1647 0 0 87 0 87 87 0 8 0
namei 1024 5216 0 5216 1 0 1 1 0 8 1
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 528 2 0 0 1 0 1 1 0 8 0
pfiaddrpl 120 4 0 4 1 0 1 1 0 8 1
scxspl 192 5571 0 5571 1 0 1 1 0 8 1
plimitpl 152 22 0 15 1 0 1 1 0 8 0
sigapl 424 322 0 293 4 0 4 4 0 8 0
futexpl 56 2474 0 2473 1 0 1 1 0 8 0
knotepl 112 81 0 57 1 0 1 1 0 8 0
kqueuepl 144 32 0 26 1 0 1 1 0 8 0
pipelkpl 16 74 0 64 1 0 1 1 0 8 0
pipepl 120 148 0 129 1 0 1 1 0 8 0
fdescpl 432 308 0 293 2 0 2 2 0 8 0
filepl 120 2004 0 1894 4 0 4 4 0 8 0
lockfpl 104 20 0 19 1 0 1 1 0 8 0
lockfspl 48 8 0 7 1 0 1 1 0 8 0
sessionpl 112 17 0 7 1 0 1 1 0 8 0
pgrppl 48 17 0 7 1 0 1 1 0 8 0
ucredpl 96 410 0 403 1 0 1 1 0 8 0
zombiepl 144 293 0 293 1 0 1 1 0 8 1
processpl 920 322 0 293 4 0 4 4 0 8 0
procpl 624 465 0 426 4 0 4 4 0 8 1
sockpl 400 370 0 351 3 0 3 3 0 8 1
mcl64k 65536 12 0 12 1 0 1 1 0 8 1
mcl16k 16384 1 0 1 1 1 0 1 0 8 0
mcl12k 12288 2 0 2 2 1 1 1 0 8 1
mcl9k 9216 3 0 3 1 0 1 1 0 8 1
mcl8k 8192 9 0 9 2 1 1 1 0 8 1
mcl4k 4096 28 0 27 2 1 1 1 0 8 0
mcl2k2 2112 2 0 2 2 1 1 1 0 8 1
mcl2k 2048 75686 0 75636 16 9 7 14 0 8 0
mtagpl 80 14 0 2 2 1 1 1 0 8 0
mbufpl 256 120715 0 120553 20 4 16 16 0 8 0
bufpl 280 3451 0 126 238 0 238 238 0 8 0
anonpl 16 48683 0 32697 79 1 78 78 0 107 13
amapchunkpl 152 1470 0 1333 8 2 6 8 0 158 0
amappl16 192 1724 0 827 55 4 51 55 0 8 6
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 25 0 20 1 0 1 1 0 8 0
amappl13 168 36 0 31 1 0 1 1 0 8 0
amappl12 160 10 0 10 1 1 0 1 0 8 0
amappl11 152 43 0 34 1 0 1 1 0 8 0
amappl10 144 118 0 110 1 0 1 1 0 8 0
amappl9 136 361 0 360 1 0 1 1 0 8 0
amappl8 128 327 0 285 2 0 2 2 0 8 0
amappl7 120 155 0 143 1 0 1 1 0 8 0
amappl6 112 23 0 18 1 0 1 1 0 8 0
amappl5 104 264 0 252 1 0 1 1 0 8 0
amappl4 96 424 0 395 1 0 1 1 0 8 0
amappl3 88 107 0 101 1 0 1 1 0 8 0
amappl2 80 1640 0 1566 2 0 2 2 0 8 0
amappl1 72 15167 0 14720 23 14 9 17 0 8 0
amappl 80 693 0 648 1 0 1 1 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 310 0 293 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 310 0 293 1 0 1 1 0 8 0
vmmpekpl 168 6162 0 6136 2 0 2 2 0 8 0
vmmpepl 168 44010 0 41906 120 18 102 114 0 357 10
vmsppl 272 309 0 293 3 1 2 2 0 8 0
pdppl 4096 626 0 588 6 1 5 6 0 8 0
pvpl 32 153549 0 134019 185 2 183 183 0 265 25
pmappl 200 309 0 293 1 0 1 1 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 251 0 20 7 0 7 7 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
ml_dequeue(ffff8000006b5048) at ml_dequeue+0x28 sys/kern/uipc_mbuf.c:1597
ifq_deq_sleep(ffff800000ac2a78,ffff80001e7bd6f8,10,117,ffffffff823e81ce,ffff800000ac2e04) at ifq_deq_sleep+0x118 sys/net/ifq.c:408
tun_dev_read(5d00,ffff80001e7bd9c8,10) at tun_dev_read+0xd6 sys/net/if_tun.c:778
spec_read(ffff80001e7bd810) at spec_read+0xe9 sys/kern/spec_vnops.c:222
VOP_READ(fffffd805d7d9c30,ffff80001e7bd9c8,10,fffffd806c3bfba0) at VOP_READ+0xbf sys/kern/vfs_vops.c:247
vn_read(fffffd800605a880,ffff80001e7bd9c8,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375
dofilereadv(ffff80001d718600,f0,ffff80001e7bd9c8,0,ffff80001e7bdab0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237
sys_read(ffff80001d718600,ffff80001e7bda60,ffff80001e7bdab0) at sys_read+0x83 sys/kern/sys_generic.c:157
syscall(ffff80001e7bdb30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x879d77257a0, count: -10
ddb> machine ddbcpu 1
No such command
ddb> trace
ml_dequeue(ffff8000006b5048) at ml_dequeue+0x28 sys/kern/uipc_mbuf.c:1597
ifq_deq_sleep(ffff800000ac2a78,ffff80001e7bd6f8,10,117,ffffffff823e81ce,ffff800000ac2e04) at ifq_deq_sleep+0x118 sys/net/ifq.c:408
tun_dev_read(5d00,ffff80001e7bd9c8,10) at tun_dev_read+0xd6 sys/net/if_tun.c:778
spec_read(ffff80001e7bd810) at spec_read+0xe9 sys/kern/spec_vnops.c:222
VOP_READ(fffffd805d7d9c30,ffff80001e7bd9c8,10,fffffd806c3bfba0) at VOP_READ+0xbf sys/kern/vfs_vops.c:247
vn_read(fffffd800605a880,ffff80001e7bd9c8,0) at vn_read+0x11f sys/kern/vfs_vnops.c:375
dofilereadv(ffff80001d718600,f0,ffff80001e7bd9c8,0,ffff80001e7bdab0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237
sys_read(ffff80001d718600,ffff80001e7bda60,ffff80001e7bdab0) at sys_read+0x83 sys/kern/sys_generic.c:157
syscall(ffff80001e7bdb30) at syscall+0x507 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x879d77257a0, count: -10