login: kernel: protection fault trap, code=0
Stopped at wsmux_getmux+0x247: movq 0(%r12,%r15,8),%rbx
ddb>
ddb> set $lines = 0
ddb> show panic
the kernel did not panic
ddb> trace
wsmux_getmux(b7d7f9c07d074208) at wsmux_getmux+0x247 sys/dev/wscons/wsmux.c:151
wsmux_do_ioctl(d15541cd434bc446,80085761,fffffd80355b2968,82,fffffd803f7c7ba0) at wsmux_do_ioctl+0x268 wsmux_add_mux sys/dev/wscons/wsmux.c:563 [inline]
wsmux_do_ioctl(d15541cd434bc446,80085761,fffffd80355b2968,82,fffffd803f7c7ba0) at wsmux_do_ioctl+0x268 sys/dev/wscons/wsmux.c:424
VOP_IOCTL(6c2539057c8d3560,80085761,fffffd80361c30f8,ffff80001496c718,fffffd80355b2968,ffff80001496c718) at VOP_IOCTL+0x80 sys/kern/vfs_vops.c:290
vn_ioctl(a3d07b2645faf15e,fffffd80361c30f8,ffff80001496c718,8) at vn_ioctl+0xc5 sys/kern/vfs_vnops.c:512sys_ioctl(47df970106db668d,2,ffff80001496c718) at sys_ioctl+0x639
syscall(53d665730488a663) at syscall+0x528
Xsyscall(6,0,7f7ffffc6548,0,1,7f7ffffc6558) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc64e0, count: -7
ddb> show registers
rdi 0x40
rsi 0xdf7ffce3
rbp 0xffff8000149a42e0
rbx 0x40
rdx 0x8b
rcx 0x1
rax 0
r8 0xffffffff81257b63 wsmux_do_ioctl+0x243
r9 0x5
r10 0x74912713bbceea07
r11 0x616ad806869dc56c
r12 0xffff80000090e400
r13 0x82
r14 0xdf7ffce3
r15 0xffffffffdf7ffce3
rip 0xffffffff81258837 wsmux_getmux+0x247
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000149a4290
ss 0x10
wsmux_getmux+0x247: movq 0(%r12,%r15,8),%rbx
ddb> show proc
PROC (syz-executor7627) pid=140721 stat=onproc
flags process=2<EXEC> proc=0
pri=51, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff80001496cbc8,0xffffffff822084f8
process=0xffff8000ffff6358 user=0xffff80001499f000, vmspace=0xfffffd803f015738
estcpu=1, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*92412 140721 52635 0 7 0x2 syz-executor7627
52635 122267 29302 0 3 0x10008a pause ksh
29302 380339 12914 0 3 0x92 select sshd
75225 271958 1 0 3 0x100083 ttyin getty
12914 54853 1 0 3 0x80 select sshd
69840 452209 58749 73 3 0x100090 kqread syslogd
58749 493267 1 0 3 0x100082 netio syslogd
78540 409985 1 77 3 0x100090 poll dhclient
85610 261204 1 0 3 0x80 poll dhclient
9208 99248 0 0 3 0x14200 pgzero zerothread
8730 349173 0 0 3 0x14200 aiodoned aiodoned
95369 371106 0 0 3 0x14200 syncer update
90651 104226 0 0 3 0x14200 cleaner cleaner
86722 286597 0 0 3 0x14200 reaper reaper
20484 32470 0 0 3 0x14200 pgdaemon pagedaemon
20632 131443 0 0 3 0x14200 bored crynlk
30823 412205 0 0 3 0x14200 bored crypto
28392 318641 0 0 3 0x40014200 acpi0 acpi0
51058 12219 0 0 3 0x14200 bored softnet
57019 160550 0 0 3 0x14200 bored systqmp
6432 469524 0 0 3 0x14200 bored systq
39983 55061 0 0 3 0x40014200 bored softclock
52764 1157 0 0 3 0x40014200 idle0
1 311832 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 Kern Lim
devbuf 9427 6307K 6307K 78643K 10521 0 0
pcb 23 9K 9K 78643K 55 0 0
rtable 61 1K 2K 78643K 115 0 0
ifaddr 21 7K 7K 78643K 21 0 0
counters 19 16K 16K 78643K 19 0 0
ioctlops 0 0K 2K 78643K 13 0 0
mount 1 1K 1K 78643K 1 0 0
vnodes 1167 73K 73K 78643K 1172 0 0
UFS quota 1 32K 32K 78643K 1 0 0
UFS mount 5 36K 36K 78643K 5 0 0
shm 2 1K 1K 78643K 2 0 0
VM map 2 0K 0K 78643K 2 0 0
sem 2 0K 0K 78643K 2 0 0
dirhash 12 2K 2K 78643K 12 0 0
ACPI 1777 193K 286K 78643K 12501 0 0
file desc 1 0K 0K 78643K 1 0 0
proc 40 30K 38K 78643K 201 0 0
NFS srvsock 1 0K 0K 78643K 1 0 0
NFS daemon 1 16K 16K 78643K 1 0 0
in_multi 11 0K 0K 78643K 11 0 0
ether_multi 1 0K 0K 78643K 1 0 0
ISOFS mount 1 32K 32K 78643K 1 0 0
MSDOSFS mount 1 16K 16K 78643K 1 0 0
ttys 18 79K 79K 78643K 18 0 0
exec 0 0K 1K 78643K 149 0 0
pagedep 1 8K 8K 78643K 1 0 0
inodedep 1 32K 32K 78643K 1 0 0
newblk 1 0K 0K 78643K 1 0 0
VM swap 7 26K 26K 78643K 7 0 0
UVM amap 47 2K 3K 78643K 665 0 0
UVM aobj 2 2K 2K 78643K 2 0 0
memdesc 1 4K 4K 78643K 1 0 0
crypto data 1 1K 1K 78643K 1 0 0
NDP 3 0K 0K 78643K 3 0 0
temp 30 2327K 2391K 78643K 1690 0 0
SYN cache 2 16K 16K 78643K 2 0 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 2 0 0 1 0 1 1 0 8 0
inpcbpl 280 22 0 16 1 0 1 1 0 8 0
plimitpl 152 13 0 8 1 0 1 1 0 8 0
rtentry 112 23 0 1 1 0 1 1 0 8 0
syncache 264 5 0 5 2 1 1 1 0 8 1
tcpcb 544 8 0 5 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
dino1pl 128 1383 0 17 45 0 45 45 0 8 0
ffsino 240 1383 0 17 81 0 81 81 0 8 0
nchpl 144 1554 0 30 57 0 57 57 0 8 0
uvmvnodes 72 1392 0 0 26 0 26 26 0 8 0
vnodes 200 1392 0 0 74 0 74 74 0 8 0
namei 1024 3257 0 3257 3 2 1 1 0 8 1
scxspl 192 2323 0 2323 6 1 5 5 0 8 5
sigapl 432 173 0 163 2 0 2 2 0 8 0
knotepl 112 5 0 0 1 0 1 1 0 8 0
kqueuepl 104 1 0 0 1 0 1 1 0 8 0
pipepl 112 114 0 107 3 2 1 1 0 8 0
fdescpl 424 174 0 163 2 0 2 2 0 8 0
filepl 120 808 0 765 2 0 2 2 0 8 0
lockfpl 96 7 0 6 2 1 1 1 0 8 0
lockfspl 24 4 0 3 2 1 1 1 0 8 0
sessionpl 112 17 0 9 1 0 1 1 0 8 0
pgrppl 48 17 0 9 1 0 1 1 0 8 0
ucredpl 96 47 0 40 1 0 1 1 0 8 0
zombiepl 144 163 0 163 3 2 1 1 0 8 1
processpl 840 187 0 163 4 1 3 4 0 8 0
procpl 600 187 0 163 3 0 3 3 0 8 0
sockpl 384 64 0 48 2 0 2 2 0 8 0
mcl4k 4096 10 0 10 2 1 1 1 0 8 1
mcl2k 2048 5507 0 5479 7 1 6 6 0 8 2
mtagpl 80 2 0 2 1 1 0 1 0 8 0
mbufpl 256 9553 0 9513 5 1 4 4 0 8 0
bufpl 256 1997 0 261 109 0 109 109 0 8 0
anonpl 16 17683 0 16589 8 2 6 7 0 62 1
amapchunkpl 152 553 0 518 2 0 2 2 0 158 0
amappl16 192 67 0 62 1 0 1 1 0 8 0
amappl15 184 1 0 0 1 0 1 1 0 8 0
amappl14 176 1 0 1 1 1 0 1 0 8 0
amappl13 168 15 0 12 1 0 1 1 0 8 0
amappl12 160 9 0 9 2 1 1 1 0 8 1
amappl11 152 176 0 167 1 0 1 1 0 8 0
amappl10 144 47 0 47 3 2 1 1 0 8 1
amappl9 136 192 0 191 1 0 1 1 0 8 0
amappl8 128 101 0 95 1 0 1 1 0 8 0
amappl7 120 28 0 24 1 0 1 1 0 8 0
amappl6 112 41 0 37 1 0 1 1 0 8 0
amappl5 104 158 0 147 1 0 1 1 0 8 0
amappl4 96 251 0 230 1 0 1 1 0 8 0
amappl3 88 111 0 106 1 0 1 1 0 8 0
amappl2 80 568 0 533 1 0 1 1 0 8 0
amappl1 72 11523 0 11134 16 7 9 16 0 8 0
amappl 72 381 0 362 1 0 1 1 0 75 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
dma64 64 259 0 259 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 17 0 17 1 1 0 1 0 8 0
aobjpl 64 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 174 0 163 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 174 0 163 1 0 1 1 0 8 0
vmmpekpl 168 5174 0 5160 1 0 1 1 0 8 0
vmmpepl 168 23357 0 22667 49 15 34 47 0 357 2
vmsppl 264 173 0 163 1 0 1 1 0 8 0
pdppl 4096 354 0 326 5 0 5 5 0 8 0
pvpl 32 70710 0 67990 35 9 26 26 0 265 3
pmappl 192 173 0 163 1 0 1 1 0 8 0
extentpl 40 39 0 25 1 0 1 1 0 8 0
phpool 112 226 0 7 7 0 7 7 0 8 0
ddb>