uvm_fault(0xffffffff828b8cf0, 0xfffffd000000001c, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at m_free+0x58: movswq 0x1c(%r14),%rsi
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xffffffff828b8cf0, 0xfffffd000000001c, 0, 1) -> e
m_free(fffffd0000000000) at m_free+0x58 sys/sys/percpu.h:125
end trace frame: 0xffff800020eddbd0, count: 0
ddb{1}> trace
m_free(fffffd0000000000) at m_free+0x58 sys/sys/percpu.h:125
ml_purge(ffff800020eddbe8) at ml_purge+0x50 m_freem sys/kern/uipc_mbuf.c:538 [inline]
ml_purge(ffff800020eddbe8) at ml_purge+0x50 sys/kern/uipc_mbuf.c:1628
ifq_purge(ffff800000ac4278) at ifq_purge+0x9a sys/net/ifq.c:529
tun_dev_close(5d00,7) at tun_dev_close+0xc8 sys/net/if_tun.c:457
spec_close(ffff800020eddd10) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd807e5f41a8,7,fffffd807f7bfba0,ffff800020ddd868) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd80666bb6a0,ffff800020ddd868) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd80666bb6a0,ffff800020ddd868) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd80666bb6a0,ffff800020ddd868) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd80666bb6a0,ffff800020ddd868) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff800020ddd868) at fdfree+0x101 sys/kern/kern_descrip.c:1195
exit1(ffff800020ddd868,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020ddd868,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020ddd868,19) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020ddd868) at userret+0x199 sys/kern/kern_sig.c:1872
syscall(ffff800020ede190) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff800020ede190) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe99c0, count: -15
ddb{1}> show registers
rdi 0
rsi 0x42965 acpi_pdirpa+0x2e7cd
rbp 0xffff800020eddb90
rbx 0
rdx 0x42964 acpi_pdirpa+0x2e7cc
rcx 0xffff800000677d80
rax 0
r8 0xffffffff8163d5a7 witness_assert+0x207
r9 0x5
r10 0x6dccedcd31512af4
r11 0x69dca350d64f08a5
r12 0xfffffd806a4a2c00
r13 0x2000 __ALIGN_SIZE+0x1000
r14 0xfffffd0000000000
r15 0xfffffd0000000000
rip 0xffffffff815cf668 m_free+0x58
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800020eddb50
ss 0x10
m_free+0x58: movswq 0x1c(%r14),%rsi
ddb{1}> show proc
PROC (syz-executor.0) pid=270084 stat=onproc
flags process=a<EXEC,EXITING,8ORPHAN> proc=2000<WEXIT>
pri=17, usrpri=53, nice=20
forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffff800020ddd398
process=0xffff800020df0f90 user=0xffff800020ed9000, vmspace=0xfffffd807efffcf0
estcpu=6, cpticks=1, pctcpu=0.8
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
28976 275112 83989 0 2 0x3000 syz-executor.1
28976 221962 83989 0 7 0x4081000 syz-executor.1
83989 45956 37491 0 3 0x82 nanosleep syz-executor.1
90391 306124 0 0 3 0x14200 bored sosplice
37491 431453 34946 0 3 0x82 thrsleep syz-fuzzer
37491 434444 34946 0 3 0x4000082 nanosleep syz-fuzzer
37491 288775 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 167122 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 256907 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 303654 34946 0 2 0x4000082 syz-fuzzer
37491 17345 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 18202 34946 0 3 0x4000082 nanosleep syz-fuzzer
37491 326252 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 86827 34946 0 3 0x4000082 thrsleep syz-fuzzer
37491 86278 34946 0 3 0x4000082 thrsleep syz-fuzzer
34946 257867 98246 0 3 0x10008a pause ksh
98246 418401 63533 0 3 0x92 select sshd
37412 156905 1 0 3 0x100083 ttyin getty
63533 13538 1 0 3 0x80 select sshd
5573 364409 1768 74 3 0x100092 bpf pflogd
1768 473281 1 0 3 0x80 netio pflogd
70697 36086 70321 73 3 0x100090 kqread syslogd
70321 43601 1 0 3 0x100082 netio syslogd
18291 135159 1 77 3 0x100090 poll dhclient
98897 177808 1 0 3 0x80 poll dhclient
69922 479687 0 0 3 0x14200 bored smr
48824 220991 0 0 2 0x14200 zerothread
83354 444007 0 0 3 0x14200 aiodoned aiodoned
49240 202886 0 0 3 0x14200 syncer update
74265 43803 0 0 3 0x14200 cleaner cleaner
57627 194086 0 0 3 0x14200 reaper reaper
80381 192925 0 0 3 0x14200 pgdaemon pagedaemon
78853 408539 0 0 3 0x14200 bored crynlk
38151 116235 0 0 3 0x14200 bored crypto
30460 330361 0 0 3 0x40014200 acpi0 acpi0
77972 427246 0 0 3 0x40014200 idle1
51143 299812 0 0 3 0x14200 bored softnet
63596 228264 0 0 3 0x14200 bored systqmp
85100 477795 0 0 3 0x14200 bored systq
34364 401830 0 0 3 0x40014200 bored softclock
89156 322330 0 0 3 0x40014200 idle0
1 245612 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9486 6403K 7181K 78643K 11446 0
pcb 13 8K 8K 78643K 38 0
rtable 134 10K 11K 78643K 478 0
ifaddr 62 14K 14K 78643K 197 0
counters 43 33K 34K 78643K 57 0
ioctlops 0 0K 4K 78643K 1624 0
iov 0 0K 16K 78643K 248 0
mount 1 1K 1K 78643K 1 0
vnodes 1227 77K 77K 78643K 1448 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 4 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 20 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 5 13K 25K 78643K 325 0
sigio 0 0K 0K 78643K 2 0
proc 60 63K 95K 78643K 494 0
subproc 23 1K 2K 78643K 51 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 18 0
in_multi 42 2K 2K 78643K 70 0
ether_multi 1 0K 0K 78643K 4 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 236 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 122 22K 23K 78643K 1881 0
UVM aobj 11 2K 2K 78643K 11 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 14 0
NDP 8 0K 0K 78643K 22 0
temp 87 3858K 3926K 78643K 7685 0
kqueue 3 4K 8K 78643K 10 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
arp 64 8 0 2 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 29 0 27 1 0 1 1 0 8 0
rtentry 112 60 0 16 2 0 2 2 0 8 0
unpcb 120 151 0 141 1 0 1 1 0 8 0
syncache 264 6 0 6 2 1 1 1 0 8 1
tcpqe 32 81 0 81 2 1 1 1 0 8 1
tcpcb 544 55 0 46 2 0 2 2 0 8 1
inpcb 296 256 0 247 3 1 2 2 0 8 1
nd6 48 12 0 6 1 0 1 1 0 8 0
pkpcb 40 2 0 2 1 1 0 1 0 8 0
ppxss 1136 1 0 1 1 1 0 1 0 8 0
pffrag 232 5 0 4 2 1 1 1 0 482 0
pffrnode 88 5 0 4 2 1 1 1 0 8 0
pffrent 40 96 0 95 2 1 1 1 0 8 0
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 93 0 80 2 0 2 2 0 8 0
pfstitem 24 36 0 8 1 0 1 1 0 8 0
pfstkey 112 36 0 8 1 0 1 1 0 8 0
pfstate 328 36 0 8 3 0 3 3 0 8 0
pfrule 1360 88 0 78 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 233 0 44 12 0 12 12 0 8 0
art_table 32 234 0 44 2 0 2 2 0 8 0
art_node 16 59 0 19 1 0 1 1 0 8 0
semapl 112 18 0 8 1 0 1 1 0 8 0
shmpl 112 8 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1761 0 357 89 1 88 89 0 8 0
ffsino 272 1761 0 357 94 0 94 94 0 8 0
nchpl 144 2686 0 1086 60 0 60 60 0 8 0
uvmvnodes 72 2013 0 0 37 0 37 37 0 8 0
vnodes 208 2013 0 0 106 0 106 106 0 8 0
namei 1024 7275 0 7275 2 1 1 1 0 8 1
percpumem 16 39 0 7 1 0 1 1 0 8 0
vcpupl 1984 1 0 0 1 0 1 1 0 8 0
vmpool 560 3 0 2 1 0 1 1 0 8 0
pfiaddrpl 120 179 0 168 1 0 1 1 0 8 0
scxspl 192 7188 0 7188 10 7 3 7 0 8 3
plimitpl 152 28 0 20 1 0 1 1 0 8 0
sigapl 424 538 0 506 4 0 4 4 0 8 0
futexpl 56 4250 0 4250 2 1 1 1 0 8 1
knotepl 112 82 0 63 1 0 1 1 0 8 0
kqueuepl 144 37 0 34 1 0 1 1 0 8 0
pipepl 304 85 0 75 1 0 1 1 0 8 0
fdescpl 496 522 0 506 3 0 3 3 0 8 0
filepl 152 3121 0 3026 5 0 5 5 0 8 0
lockfpl 104 50 0 49 1 0 1 1 0 8 0
lockfspl 48 23 0 22 1 0 1 1 0 8 0
sessionpl 112 19 0 8 1 0 1 1 0 8 0
pgrppl 48 25 0 14 1 0 1 1 0 8 0
ucredpl 96 432 0 423 1 0 1 1 0 8 0
zombiepl 144 507 0 506 1 0 1 1 0 8 0
processpl 992 538 0 506 5 0 5 5 0 8 0
procpl 624 1066 0 1023 5 1 4 5 0 8 0
sosppl 128 5 0 5 2 1 1 1 0 8 1
sockpl 400 440 0 419 5 2 3 4 0 8 0
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 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 13 0 0 2 0 2 2 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 208 0 0 25 0 25 25 0 8 0
mtagpl 96 19 0 0 1 0 1 1 0 8 0
mbufpl 256 281 0 0 17 0 17 17 0 8 0
bufpl 280 4018 0 143 277 0 277 277 0 8 0
anonpl 16 72633 0 56219 84 7 77 83 0 124 6
amapchunkpl 152 2625 0 2481 9 2 7 8 0 158 0
amappl16 192 2619 0 1676 69 12 57 59 0 8 8
amappl15 184 10 0 9 2 1 1 1 0 8 0
amappl14 176 103 0 98 1 0 1 1 0 8 0
amappl13 168 37 0 33 1 0 1 1 0 8 0
amappl12 160 145 0 143 2 1 1 1 0 8 0
amappl11 152 152 0 134 1 0 1 1 0 8 0
amappl10 144 21 0 13 1 0 1 1 0 8 0
amappl9 136 441 0 440 1 0 1 1 0 8 0
amappl8 128 434 0 399 2 0 2 2 0 8 0
amappl7 120 126 0 113 1 0 1 1 0 8 0
amappl6 112 24 0 20 1 0 1 1 0 8 0
amappl5 104 476 0 461 1 0 1 1 0 8 0
amappl4 96 591 0 557 1 0 1 1 0 8 0
amappl3 88 189 0 182 1 0 1 1 0 8 0
amappl2 80 3227 0 3157 2 0 2 2 0 8 0
amappl1 72 23272 0 22828 23 13 10 18 0 8 0
amappl 80 1335 0 1289 2 0 2 2 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 10 0 0 1 0 1 1 0 8 0
uaddrrnd 24 525 0 508 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 525 0 508 1 0 1 1 0 8 0
vmmpekpl 168 7652 0 7612 2 0 2 2 0 8 0
vmmpepl 168 73151 0 71032 137 12 125 132 0 357 30
vmsppl 368 524 0 508 2 0 2 2 0 8 0
pdppl 4096 1057 0 1017 7 1 6 6 0 8 0
pvpl 32 219611 0 200509 198 12 186 198 0 265 21
pmappl 232 524 0 508 4 2 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 273 0 9 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff82722ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff8292ee60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff8292ee60) at __mp_lock+0x127 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89
Xsoftclock() at Xsoftclock+0x1f
__mp_lock(ffffffff8292ee60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff8292ee60) at __mp_lock+0x127 sys/kern/kern_lock.c:147
single_thread_check(ffff800020e37018,0) at single_thread_check+0x13a sys/kern/kern_sig.c:1922
userret(ffff800020e37018) at userret+0x345 sys/kern/kern_sig.c:1896
Xsyscall() at Xsyscall+0x156
end of kernel
end trace frame: 0x7f60700f270, count: -10
ddb{0}> machine ddbcpu 1
Stopped at m_free+0x58: movswq 0x1c(%r14),%rsi
ddb{1}> trace
m_free(fffffd0000000000) at m_free+0x58 sys/sys/percpu.h:125
ml_purge(ffff800020eddbe8) at ml_purge+0x50 m_freem sys/kern/uipc_mbuf.c:538 [inline]
ml_purge(ffff800020eddbe8) at ml_purge+0x50 sys/kern/uipc_mbuf.c:1628
ifq_purge(ffff800000ac4278) at ifq_purge+0x9a sys/net/ifq.c:529
tun_dev_close(5d00,7) at tun_dev_close+0xc8 sys/net/if_tun.c:457
spec_close(ffff800020eddd10) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd807e5f41a8,7,fffffd807f7bfba0,ffff800020ddd868) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd80666bb6a0,ffff800020ddd868) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd80666bb6a0,ffff800020ddd868) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd80666bb6a0,ffff800020ddd868) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd80666bb6a0,ffff800020ddd868) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff800020ddd868) at fdfree+0x101 sys/kern/kern_descrip.c:1195
exit1(ffff800020ddd868,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020ddd868,19) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020ddd868,19) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020ddd868) at userret+0x199 sys/kern/kern_sig.c:1872
syscall(ffff800020ede190) at syscall+0x55f mi_syscall_return sys/sys/syscall_mi.h:129 [inline]
syscall(ffff800020ede190) at syscall+0x55f sys/arch/amd64/amd64/trap.c:592
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe99c0, count: -15