uvm_fault(0xfffffd807efff000, 0x28, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at wsevent_fini+0x12: movq 0x28(%r14),%r15
ddb{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xfffffd807efff000, 0x28, 0, 1) -> e
wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130
end trace frame: 0xffff800023f13cf0, count: 0
ddb{1}> trace
wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130
wsmouseclose(4400,1,2000,ffff800020e09c48) at wsmouseclose+0x92 sys/dev/wscons/wsmouse.c:355
spec_close(ffff800023f13d70) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd8070c86688,1,fffffd807f7bf9c0,ffff800020e09c48) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd8065bf3020,ffff800020e09c48) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd8065bf3020,ffff800020e09c48) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd8065bf3020,ffff800020e09c48) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd8065bf3020,ffff800020e09c48) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff800020e09c48) at fdfree+0x101 sys/kern/kern_descrip.c:1195
exit1(ffff800020e09c48,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197
sys_exit(ffff800020e09c48,ffff800023f14000,ffff800023f14050) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff800023f140d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023f140d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff3f00, count: -12
ddb{1}> show registers
rdi 0
rsi 0xffff800020e09c4c
rbp 0xffff800023f13ca0
rbx 0
rdx 0xffff800020e09c48
rcx 0
rax 0
r8 0xffffffff814ff197 witness_assert+0x207
r9 0x5
r10 0xa
r11 0x419808c2d5be5e90
r12 0x4000 __ALIGN_SIZE+0x3000
r13 0x2000 __ALIGN_SIZE+0x1000
r14 0
r15 0
rip 0xffffffff81784c82 wsevent_fini+0x12
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800023f13c80
ss 0
wsevent_fini+0x12: movq 0x28(%r14),%r15
ddb{1}> show proc
PROC (syz-executor.0) pid=469771 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=0, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff800020e09eb8,0xffffffff82912c38
process=0xffff800020eb6400 user=0xffff800023f0f000, vmspace=0xfffffd807efff000
estcpu=1, cpticks=3, pctcpu=0.0
user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
42138 87641 74229 0 3 0x2 biowait syz-executor.1
38113 194965 74229 0 3 0x82 nanosleep syz-executor.0
74229 507116 84464 0 3 0x82 kqread syz-fuzzer
74229 453143 84464 0 3 0x4000082 nanosleep syz-fuzzer
74229 181046 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 508462 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 2071 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 151630 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 407559 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 59574 84464 0 3 0x4000082 thrsleep syz-fuzzer
74229 259082 84464 0 3 0x4000082 nanosleep syz-fuzzer
74229 98427 84464 0 3 0x4000082 thrsleep syz-fuzzer
84464 500235 75346 0 3 0x10008a pause ksh
75346 518868 23043 0 7 0x12 sshd
98897 469360 1 0 3 0x100083 ttyin getty
23043 26087 1 0 3 0x80 select sshd
56196 12822 29616 74 3 0x100092 bpf pflogd
29616 17254 1 0 3 0x80 netio pflogd
63316 89943 55723 73 3 0x100090 kqread syslogd
55723 396703 1 0 3 0x100082 netio syslogd
84434 438561 1 77 3 0x100090 poll dhclient
98158 309034 1 0 3 0x80 poll dhclient
72451 331329 0 0 3 0x14200 bored smr
70439 278012 0 0 2 0x14200 zerothread
26950 375777 0 0 3 0x14200 aiodoned aiodoned
36211 126225 0 0 3 0x14200 syncer update
81806 248737 0 0 3 0x14200 cleaner cleaner
62244 285962 0 0 3 0x14200 reaper reaper
20938 50271 0 0 3 0x14200 pgdaemon pagedaemon
20860 372738 0 0 3 0x14200 bored crynlk
98195 78381 0 0 3 0x14200 bored crypto
21441 458550 0 0 3 0x40014200 acpi0 acpi0
28094 178664 0 0 3 0x40014200 idle1
93133 429294 0 0 3 0x14200 bored softnet
94881 191271 0 0 3 0x14200 bored systqmp
45125 29061 0 0 3 0x14200 bored systq
97439 84491 0 0 3 0x40014200 bored softclock
74281 347907 0 0 3 0x40014200 idle0
1 283530 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 42138 (syz-executor.1) thread 0xffff800020e09eb8 (87641)
exclusive rrwlock inode r = 0 (0xfffffd806aba7700)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329
#8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#11 namei+0x63c sys/kern/vfs_lookup.c:249
#12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806b20a5e8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419
#6 namei+0x63c sys/kern/vfs_lookup.c:249
#7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853
#8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9492 6413K 6938K 78643K 11047 0
pcb 13 8K 8K 78643K 35 0
rtable 110 3K 4K 78643K 258 0
ifaddr 59 13K 13K 78643K 68 0
counters 43 33K 34K 78643K 45 0
ioctlops 0 0K 4K 78643K 1485 0
iov 0 0K 16K 78643K 7 0
mount 1 1K 1K 78643K 1 0
vnodes 1222 77K 77K 78643K 1293 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 12 0K 1K 78643K 16 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 5 13K 25K 78643K 241 0
sigio 0 0K 0K 78643K 1 0
proc 61 63K 83K 78643K 451 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 4 0
in_multi 53 3K 3K 78643K 57 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 61 281K 281K 78643K 61 0
exec 0 0K 1K 78643K 210 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 113 22K 26K 78643K 1604 0
UVM aobj 3 2K 2K 78643K 3 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 1K 78643K 18 0
NDP 8 0K 0K 78643K 14 0
temp 80 3857K 3921K 78643K 2503 0
kqueue 3 4K 5K 78643K 7 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 6 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 87 0 84 1 0 1 1 0 8 0
rtentry 112 47 0 1 2 0 2 2 0 8 0
unpcb 120 138 0 128 1 0 1 1 0 8 0
syncache 264 4 0 4 1 1 0 1 0 8 0
tcpqe 32 19 0 19 1 1 0 1 0 8 0
tcpcb 544 39 0 35 1 0 1 1 0 8 0
inpcb 296 114 0 107 2 1 1 2 0 8 0
nd6 48 7 0 0 1 0 1 1 0 8 0
pfstscr 40 4 0 4 1 1 0 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 1 0 1 1 1 0 1 0 8 0
pfstitem 24 20 0 9 1 0 1 1 0 8 0
pfstkey 112 22 0 11 1 0 1 1 0 8 0
pfstate 328 20 0 9 2 0 2 2 0 8 0
pfrule 1360 22 0 17 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 46 0 5 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 0 1 0 1 1 0 8 0
semapl 112 14 0 4 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1694 0 287 89 0 89 89 0 8 0
ffsino 272 1694 0 287 95 0 95 95 0 8 0
nchpl 144 2185 0 574 60 0 60 60 0 8 0
uvmvnodes 72 1786 0 0 33 0 33 33 0 8 0
vnodes 208 1786 0 0 94 0 94 94 0 8 0
namei 1024 6757 0 6757 1 0 1 1 0 8 1
percpumem 16 33 0 1 1 0 1 1 0 8 0
scxspl 192 6447 0 6446 8 7 1 7 0 8 0
plimitpl 152 23 0 15 1 0 1 1 0 8 0
sigapl 424 456 0 425 4 0 4 4 0 8 0
futexpl 56 2748 0 2748 1 0 1 1 0 8 1
knotepl 112 65 0 46 1 0 1 1 0 8 0
kqueuepl 144 12 0 10 1 0 1 1 0 8 0
pipepl 304 95 0 85 2 1 1 2 0 8 0
fdescpl 496 441 0 425 3 0 3 3 0 8 0
filepl 152 2881 0 2776 5 0 5 5 0 8 0
lockfpl 104 98 0 97 1 0 1 1 0 8 0
lockfspl 48 38 0 37 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 717 0 708 1 0 1 1 0 8 0
zombiepl 144 426 0 425 1 0 1 1 0 8 0
processpl 992 456 0 425 5 0 5 5 0 8 0
procpl 624 845 0 805 4 0 4 4 0 8 0
sockpl 400 339 0 319 4 1 3 4 0 8 0
mcl64k 65536 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 158 0 0 19 0 19 19 0 8 0
mtagpl 96 15 0 0 1 0 1 1 0 8 0
mbufpl 256 357 0 0 22 0 22 22 0 8 0
bufpl 280 3608 0 133 249 0 249 249 0 8 0
anonpl 16 50734 0 35563 63 1 62 62 0 124 0
amapchunkpl 152 2097 0 1947 9 2 7 9 0 158 0
amappl16 192 1781 0 977 41 0 41 41 0 8 0
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 231 0 225 1 0 1 1 0 8 0
amappl13 168 29 0 25 1 0 1 1 0 8 0
amappl12 160 7 0 6 1 0 1 1 0 8 0
amappl11 152 56 0 40 1 0 1 1 0 8 0
amappl10 144 18 0 13 1 0 1 1 0 8 0
amappl9 136 405 0 402 1 0 1 1 0 8 0
amappl8 128 323 0 300 1 0 1 1 0 8 0
amappl7 120 116 0 105 1 0 1 1 0 8 0
amappl6 112 26 0 20 1 0 1 1 0 8 0
amappl5 104 335 0 318 1 0 1 1 0 8 0
amappl4 96 486 0 458 1 0 1 1 0 8 0
amappl3 88 311 0 303 1 0 1 1 0 8 0
amappl2 80 2579 0 2510 2 0 2 2 0 8 0
amappl1 72 19159 0 18721 23 13 10 18 0 8 0
amappl 80 1095 0 1048 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 2 0 0 1 0 1 1 0 8 0
uaddrrnd 24 441 0 425 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 441 0 425 1 0 1 1 0 8 0
vmmpekpl 168 7196 0 7162 2 0 2 2 0 8 0
vmmpepl 168 60090 0 58128 114 19 95 111 0 357 4
vmsppl 368 440 0 425 2 0 2 2 0 8 0
pdppl 4096 889 0 850 6 0 6 6 0 8 0
pvpl 32 175828 0 157497 153 3 150 151 0 265 1
pmappl 232 440 0 425 2 1 1 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 266 0 4 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(ffffffff826f9ff0) 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(ffffffff829060a0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829060a0) at __mp_lock+0x127 sys/kern/kern_lock.c:147
intr_handler(ffff800020e04060,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532
Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f
__sanitizer_cov_trace_cmp4(88dce,88dcf) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline]
__sanitizer_cov_trace_cmp4(88dce,88dcf) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline]
__sanitizer_cov_trace_cmp4(88dce,88dcf) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135
__mp_lock(ffffffff829060a0) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829060a0) at __mp_lock+0x139 sys/kern/kern_lock.c:147
syscall(ffff800020e04250) at syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline]
syscall(ffff800020e04250) at syscall+0x400 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd23b0, count: -10
ddb{0}> machine ddbcpu 1
Stopped at wsevent_fini+0x12: movq 0x28(%r14),%r15
ddb{1}> trace
wsevent_fini(0) at wsevent_fini+0x12 sys/dev/wscons/wsevent.c:130
wsmouseclose(4400,1,2000,ffff800020e09c48) at wsmouseclose+0x92 sys/dev/wscons/wsmouse.c:355
spec_close(ffff800023f13d70) at spec_close+0x311 sys/kern/spec_vnops.c:560
VOP_CLOSE(fffffd8070c86688,1,fffffd807f7bf9c0,ffff800020e09c48) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd8065bf3020,ffff800020e09c48) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd8065bf3020,ffff800020e09c48) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd8065bf3020,ffff800020e09c48) at fdrop+0xc2 sys/kern/kern_descrip.c:1279
closef(fffffd8065bf3020,ffff800020e09c48) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff800020e09c48) at fdfree+0x101 sys/kern/kern_descrip.c:1195
exit1(ffff800020e09c48,0,0,1) at exit1+0x32c sys/kern/kern_exit.c:197
sys_exit(ffff800020e09c48,ffff800023f14000,ffff800023f14050) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff800023f140d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800023f140d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffff3f00, count: -12