uvm_fault(0xffffffff827a92c8, 0xffffffff82698c98, 0, 2) -> e
kernel: page fault trap, code=0
Stopped at m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8)
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
kernel page fault
uvm_fault(0xffffffff827a92c8, 0xffffffff82698c98, 0, 2) -> e
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline]
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756
end trace frame: 0xffff8000222b0a20, count: 0
ddb{0}> trace
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline]
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756
pflog_mtap(ffff800000044980,ffff8000222b0a48,fffffd806999d200) at pflog_mtap+0x446 sys/net/if_pflog.c:390
pflog_packet(ffff8000222b0b48,0,ffff800000ac7fd8,0,ffffffff828c24c0,0) at pflog_packet+0x3a4
pf_test(18,1,ffff800000b45800,ffff8000222b0e18) at pf_test+0xfc5 sys/net/pf.c:7226
ip6_input_if(ffff8000222b0e18,ffff8000222b0e24,29,0,ffff800000b45800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300
ipv6_input(ffff800000b45800,fffffd806999d200) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
tun_dev_write(5d00,ffff8000222b1108,ffff8000244ce000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867
spec_write(ffff8000222b0f60) at spec_write+0xd4 sys/kern/spec_vnops.c:309
VOP_WRITE(fffffd806e661758,ffff8000222b1108,11,fffffd807f7b7a80) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274
vn_write(fffffd8069d5f7d0,ffff8000222b1108,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414
dofilewritev(ffff80002123d498,f0,ffff8000222b1108,0,ffff8000222b11f0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365
sys_write(ffff80002123d498,ffff8000222b11a0,ffff8000222b11f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff8000222b1270) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000222b1270) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1a01ff4a9a0, count: -14
ddb{0}> show registers
rdi 0
rsi 0x9da13 acpi_pdirpa+0x8987b
rbp 0xffff8000222b0780
rbx 0xffffffffffffb12a
rdx 0x9da12 acpi_pdirpa+0x8987a
rcx 0xffffffff826c0340 mbstat_boot_boot_cpumem
rax 0
r8 0x2
r9 0x1
r10 0x5a32fab043a43581
r11 0x35626be88553025a
r12 0xfffffd807f008b00
r13 0x108
r14 0x30
r15 0xffff8000222b0980
rip 0xffffffff8134b169 m_copyback+0x119
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000222b06c0
ss 0x10
m_copyback+0x119: addq $0x1,0x8(%rcx,%rbx,8)
ddb{0}> show proc
PROC (syz-executor.0) pid=479675 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff80002123c018,0xffffffff82932800
process=0xffff8000212354b0 user=0xffff8000222ac000, vmspace=0xfffffd806a06a2f0
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
63430 414956 97331 0 7 0 syz-executor.0
*63430 479675 97331 0 7 0x4000000 syz-executor.0
35249 384540 72111 0 2 0x482 syz-executor.1
97331 393945 72111 0 3 0x82 nanosleep syz-executor.0
4196 222401 1 0 3 0x100083 ttyin getty
83023 29247 0 0 3 0x14200 bored sosplice
72111 414350 23208 0 3 0x82 thrsleep syz-fuzzer
72111 40518 23208 0 3 0x4000082 nanosleep syz-fuzzer
72111 327718 23208 0 3 0x4000082 kqread syz-fuzzer
72111 468628 23208 0 3 0x4000082 thrsleep syz-fuzzer
72111 368888 23208 0 3 0x4000082 thrsleep syz-fuzzer
72111 30500 23208 0 3 0x4000082 nanosleep syz-fuzzer
72111 66200 23208 0 3 0x4000082 thrsleep syz-fuzzer
72111 248604 23208 0 3 0x4000082 thrsleep syz-fuzzer
23208 246340 72168 0 3 0x10008a pause ksh
72168 92931 57941 0 3 0x92 select sshd
57941 108096 1 0 3 0x80 select sshd
94627 201493 60150 74 3 0x100092 bpf pflogd
60150 48179 1 0 3 0x80 netio pflogd
6019 220414 47218 73 3 0x100090 kqread syslogd
47218 297969 1 0 3 0x100082 netio syslogd
75337 339399 1 77 3 0x100090 poll dhclient
86828 193142 1 0 3 0x80 poll dhclient
27019 289106 0 0 3 0x14200 bored smr
89332 108725 0 0 2 0x14200 zerothread
61800 180475 0 0 3 0x14200 aiodoned aiodoned
68626 443545 0 0 3 0x14200 syncer update
77522 212652 0 0 3 0x14200 cleaner cleaner
63980 49604 0 0 3 0x14200 reaper reaper
17027 385593 0 0 3 0x14200 pgdaemon pagedaemon
19845 97007 0 0 3 0x14200 bored crynlk
62205 67973 0 0 3 0x14200 bored crypto
42993 137968 0 0 3 0x14200 bored viomb
61120 519038 0 0 3 0x40014200 acpi0 acpi0
84347 10303 0 0 3 0x40014200 idle1
35213 63393 0 0 3 0x14200 bored softnet
56654 297229 0 0 3 0x14200 bored systqmp
15433 494641 0 0 3 0x14200 bored systq
71273 280226 0 0 2 0x40014200 softclock
76229 476420 0 0 3 0x40014200 idle0
1 372602 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 63430 (syz-executor.0) thread 0xffff80002123d498 (479675)
exclusive rwlock netlock r = 0 (0xffffffff826cbdf0)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176
#1 tun_dev_write+0x1f9 sys/net/if_tun.c:866
#2 spec_write+0xd4 sys/kern/spec_vnops.c:309
#3 VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274
#4 vn_write+0x14e sys/kern/vfs_vnops.c:414
#5 dofilewritev+0x1ab sys/kern/sys_generic.c:365
#6 sys_write+0x83 sys/kern/sys_generic.c:285
#7 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#7 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
#8 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828b6458)
#0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176
#1 vn_write+0x42 sys/kern/vfs_vnops.c:399
#2 dofilewritev+0x1ab sys/kern/sys_generic.c:365
#3 sys_write+0x83 sys/kern/sys_generic.c:285
#4 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#4 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
#5 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9561 6586K 8114K 78643K 16720 0
pcb 13 8K 8K 78643K 294 0
rtable 111 4K 5K 78643K 1043 0
ifaddr 83 16K 17K 78643K 379 0
sysctl 3 1K 1K 78643K 3 0
counters 45 34K 34K 78643K 165 0
ioctlops 0 0K 4K 78643K 1647 0
iov 0 0K 16K 78643K 136 0
mount 1 1K 1K 78643K 1 0
vnodes 1227 77K 78K 78643K 3252 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 27 0
VM map 2 1K 1K 78643K 2 0
sem 10 0K 0K 78643K 10 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1825 197K 290K 78643K 13109 0
file desc 5 13K 25K 78643K 5912 0
sigio 0 0K 0K 78643K 37 0
proc 62 63K 95K 78643K 935 0
subproc 32 2K 2K 78643K 148 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 296 0
in_multi 33 2K 2K 78643K 279 0
ether_multi 1 0K 0K 78643K 84 0
mrt 0 0K 0K 78643K 59 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 67 307K 307K 78643K 67 0
exec 0 0K 2K 78643K 683 0
pfkey data 0 0K 0K 78643K 1 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 228 180K 195K 78643K 14641 0
UVM aobj 16 2K 2K 78643K 24 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 1K 78643K 239 0
NDP 15 0K 0K 78643K 91 0
temp 146 3975K 4040K 78643K 26561 0
kqueue 3 4K 22K 78643K 205 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 20 0 13 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 120 169 0 167 1 0 1 1 0 8 0
rtentry 112 136 0 91 2 0 2 2 0 8 0
unpcb 120 1009 0 990 3 2 1 2 0 8 0
syncache 296 43 0 43 8 8 0 1 0 8 0
tcpqe 32 749 0 749 6 5 1 2 0 8 1
tcpcb 736 873 0 862 13 11 2 4 0 8 0
inpcb 296 2377 0 2365 7 5 2 2 0 8 1
rttmr 72 22 0 22 5 4 1 1 0 8 1
nd6 48 25 0 19 1 0 1 1 0 8 0
pkpcb 40 7 0 7 2 2 0 1 0 8 0
kcovpl 48 8 0 6 1 0 1 1 0 8 0
ppxss 1128 6 0 6 2 2 0 1 0 8 0
pffrag 232 13 0 13 4 4 0 1 0 482 0
pffrnode 88 13 0 13 4 4 0 1 0 8 0
pffrent 40 337 0 337 5 5 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
pfrktable 1344 3 0 1 1 0 1 1 0 8 0
pfstitem 24 39 0 37 1 0 1 1 0 8 0
pfstkey 112 39 0 37 1 0 1 1 0 8 0
pfstate 328 39 0 37 2 1 1 2 0 8 0
pfrule 1360 84 0 67 3 1 2 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 484 0 288 14 1 13 13 0 8 0
art_table 32 485 0 288 2 0 2 2 0 8 0
art_node 16 135 0 94 1 0 1 1 0 8 0
sysvmsgpl 40 39 0 13 1 0 1 1 0 8 0
semupl 112 10 0 10 1 1 0 1 0 8 0
semapl 112 8 0 0 1 0 1 1 0 8 0
shmpl 112 21 0 9 2 1 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 8594 0 7196 93 5 88 89 0 8 0
ffsino 272 8594 0 7196 96 2 94 95 0 8 0
nchpl 144 15431 0 13838 60 0 60 60 0 8 0
uvmvnodes 72 10206 0 0 186 0 186 186 0 8 0
vnodes 208 10206 0 0 538 0 538 538 0 8 0
namei 1024 38819 0 38819 2 1 1 1 0 8 1
percpumem 16 93 0 60 1 0 1 1 0 8 0
vcpupl 1984 11 0 0 2 0 2 2 0 8 0
vmpool 560 14 0 3 1 0 1 1 0 8 0
pfiaddrpl 120 5 0 0 1 0 1 1 0 8 0
scxspl 216 46067 0 46067 18 17 1 8 0 8 1
plimitpl 152 263 0 255 1 0 1 1 0 8 0
sigapl 424 6121 0 6088 4 0 4 4 0 8 0
futexpl 56 38994 0 38994 2 1 1 1 0 8 1
knotepl 112 416 0 396 2 1 1 2 0 8 0
kqueuepl 152 3088 0 3073 1 0 1 1 0 8 0
pipepl 304 320 0 309 13 11 2 2 0 8 1
fdescpl 496 6096 0 6080 3 0 3 3 0 8 0
filepl 152 19827 0 19725 7 2 5 6 0 8 0
lockfpl 104 830 0 829 1 0 1 1 0 8 0
lockfspl 48 304 0 303 1 0 1 1 0 8 0
sessionpl 144 26 0 15 1 0 1 1 0 8 0
pgrppl 48 32 0 21 1 0 1 1 0 8 0
ucredpl 96 2361 0 2352 1 0 1 1 0 8 0
zombiepl 144 6088 0 6087 2 1 1 1 0 8 0
processpl 1056 6121 0 6087 3 0 3 3 0 8 0
procpl 656 13501 0 13459 5 1 4 5 0 8 0
sosppl 168 64 0 64 3 3 0 1 0 8 0
sockpl 400 3574 0 3543 8 3 5 6 0 8 0
mcl64k 65536 12 0 0 2 0 2 2 0 8 0
mcl12k 12288 17 0 0 2 0 2 2 0 8 0
mcl9k 9216 12 0 0 1 0 1 1 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 17 0 0 3 0 3 3 0 8 0
mcl2k2 2112 7 0 0 1 0 1 1 0 8 0
mcl2k 2048 348 0 0 25 0 25 25 0 8 0
mtagpl 96 298 0 0 7 0 7 7 0 8 0
mbufpl 256 917 0 0 50 0 50 50 0 8 0
bufpl 280 11708 0 5461 447 0 447 447 0 8 0
anonpl 16 479718 0 470124 74 34 40 69 0 124 0
amapchunkpl 152 25714 0 25481 37 26 11 23 0 158 0
amappl16 192 22200 0 21813 53 33 20 41 0 8 0
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 30 0 23 1 0 1 1 0 8 0
amappl13 168 98 0 96 1 0 1 1 0 8 0
amappl12 160 749 0 745 1 0 1 1 0 8 0
amappl11 152 1016 0 999 1 0 1 1 0 8 0
amappl10 144 1194 0 1189 1 0 1 1 0 8 0
amappl9 136 15 0 15 1 1 0 1 0 8 0
amappl8 128 4750 0 4650 4 0 4 4 0 8 0
amappl7 120 316 0 309 1 0 1 1 0 8 0
amappl6 112 1267 0 1249 1 0 1 1 0 8 0
amappl5 104 7130 0 7108 1 0 1 1 0 8 0
amappl4 96 1892 0 1858 1 0 1 1 0 8 0
amappl3 88 319 0 311 1 0 1 1 0 8 0
amappl2 80 41930 0 41860 3 0 3 3 0 8 0
amappl1 72 186315 0 185841 25 15 10 19 0 8 0
amappl 80 13943 0 13856 2 0 2 2 0 84 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 64 23 0 8 1 0 1 1 0 8 0
uaddrrnd 24 6110 0 6083 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 6110 0 6083 1 0 1 1 0 8 0
vmmpekpl 168 31559 0 31525 2 0 2 2 0 8 0
vmmpepl 168 769474 0 767772 135 44 91 98 0 357 10
vmsppl 368 6109 0 6083 3 0 3 3 0 8 0
pdppl 4096 12227 0 12177 72 20 52 54 0 8 2
pvpl 32 1954030 0 1941170 231 120 111 170 0 265 3
pmappl 232 6109 0 6083 3 1 2 2 0 8 0
extentpl 40 57 0 39 1 0 1 1 0 8 0
phpool 112 394 0 46 11 1 10 11 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 m_get sys/sys/percpu.h:125 [inline]
m_copyback(ffff8000222b07a0,138,0,ffff8000222b0964,2) at m_copyback+0x119 sys/kern/uipc_mbuf.c:756
pflog_mtap(ffff800000044980,ffff8000222b0a48,fffffd806999d200) at pflog_mtap+0x446 sys/net/if_pflog.c:390
pflog_packet(ffff8000222b0b48,0,ffff800000ac7fd8,0,ffffffff828c24c0,0) at pflog_packet+0x3a4
pf_test(18,1,ffff800000b45800,ffff8000222b0e18) at pf_test+0xfc5 sys/net/pf.c:7226
ip6_input_if(ffff8000222b0e18,ffff8000222b0e24,29,0,ffff800000b45800) at ip6_input_if+0x945 sys/netinet6/ip6_input.c:300
ipv6_input(ffff800000b45800,fffffd806999d200) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
tun_dev_write(5d00,ffff8000222b1108,ffff8000244ce000,2) at tun_dev_write+0x204 sys/net/if_tun.c:867
spec_write(ffff8000222b0f60) at spec_write+0xd4 sys/kern/spec_vnops.c:309
VOP_WRITE(fffffd806e661758,ffff8000222b1108,11,fffffd807f7b7a80) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:274
vn_write(fffffd8069d5f7d0,ffff8000222b1108,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414
dofilewritev(ffff80002123d498,f0,ffff8000222b1108,0,ffff8000222b11f0) at dofilewritev+0x1ab sys/kern/sys_generic.c:365
sys_write(ffff80002123d498,ffff8000222b11a0,ffff8000222b11f0) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff8000222b1270) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff8000222b1270) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1a01ff4a9a0, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
end of kernel
end trace frame: 0x7f7fffffae40, count: -3