panic: vwakeup: neg numoutput

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 088a2cd995ac remove prototypes with no matching function; ..
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=100eb6dc980000
kernel config: https://syzkaller.appspot.com/x/.config?x=1bc15e68cd2a49e5
dashboard link: https://syzkaller.appspot.com/bug?extid=07e16b0571560b6f6b38

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a43ce9321717/disk-088a2cd9.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/55df52df1389/bsd-088a2cd9.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/0f49c41ff9af/kernel-088a2cd9.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+07e16b...@syzkaller.appspotmail.com

panic: vwakeup: neg numoutput
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*290203 88450 0 0x14000 0x200 0 reaper
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82923856) at panic+0x165 sys/kern/subr_prf.c:198
vwakeup(fffffd805e6c2438) at vwakeup+0x113 sys/kern/vfs_subr.c:1941
biodone(fffffd8066a5cc48) at biodone+0xd0 sys/kern/vfs_bio.c:1302
sd_buf_done(fffffd8076fd0e70) at sd_buf_done+0x1fd sys/scsi/sd.c:772
vioscsi_vq_done(ffff8000000a2228) at vioscsi_vq_done+0xb1 sys/dev/pv/vioscsi.c:350
intr_handler(ffff80002a5d5880,ffff80000006a080) at intr_handler+0x4f sys/arch/amd64/amd64/intr.c:544
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
pmap_do_remove(fffffd805e147be0,7529d9788000,7529d9888000,0) at pmap_do_remove+0x738 sys/arch/amd64/amd64/pmap.c:1915
uvm_unmap_kill_entry_withlock(fffffd8077a3bd78,fffffd806b1c77a8,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd8077a3bd78) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: 1
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: vwakeup: neg numoutput
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82923856) at panic+0x165 sys/kern/subr_prf.c:198
vwakeup(fffffd805e6c2438) at vwakeup+0x113 sys/kern/vfs_subr.c:1941
biodone(fffffd8066a5cc48) at biodone+0xd0 sys/kern/vfs_bio.c:1302
sd_buf_done(fffffd8076fd0e70) at sd_buf_done+0x1fd sys/scsi/sd.c:772
vioscsi_vq_done(ffff8000000a2228) at vioscsi_vq_done+0xb1 sys/dev/pv/vioscsi.c:350
intr_handler(ffff80002a5d5880,ffff80000006a080) at intr_handler+0x4f sys/arch/amd64/amd64/intr.c:544
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
pmap_do_remove(fffffd805e147be0,7529d9788000,7529d9888000,0) at pmap_do_remove+0x738 sys/arch/amd64/amd64/pmap.c:1915
uvm_unmap_kill_entry_withlock(fffffd8077a3bd78,fffffd806b1c77a8,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd8077a3bd78) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -14
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a5d5680
rbx 0
rdx 0
rcx 0
rax 0xffff80002a5d7c38
r8 0x101010101010101
r9 0x8080808080808080
r10 0xc6f0f3fbfb03595c
r11 0xfe15eab0ef58fbcb
r12 0
r13 0
r14 0
r15 0x1
rip 0xffffffff8210581c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002a5d5670
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb> show proc
PROC (reaper) tid=290203 pid=88450 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=4, usrpri=82, slppri=4, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a58d710,0xffff80002a5d79b8
process=0xffff8000ffffd920 user=0xffff80002a5d0000, vmspace=0xffffffff82d6d698
estcpu=32, cpticks=4, pctcpu=12.66, user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
61871 408071 56582 0 3 0x8000080 nanoslp syz-executor.2
61871 261749 56582 0 3 0xc000080 ttyout syz-executor.2
61871 394280 56582 0 3 0xc000080 ttyout syz-executor.2
44116 273814 331 0 3 0x8000080 nanoslp syz-executor.5
44116 265117 331 0 3 0xc000080 lockf syz-executor.5
44116 398087 331 0 3 0xc000080 lockf syz-executor.5
44116 209621 331 0 3 0xc000080 fsleep syz-executor.5
31664 204363 94841 0 3 0x8000002 biowait syz-executor.1
22453 26810 94841 0 3 0x8000082 nanoslp syz-executor.6
331 510606 94841 0 3 0x8000082 nanoslp syz-executor.5
56582 256154 94841 0 3 0x8000082 nanoslp syz-executor.2
85243 336005 94841 0 3 0x8000082 nanoslp syz-executor.7
40223 415328 94841 0 3 0x8000082 nanoslp syz-executor.0
14655 504625 94841 0 3 0x8000082 wait syz-executor.4
80664 119623 94841 0 3 0x8000082 nanoslp syz-executor.3
72485 60223 1 0 3 0x18100083 ttyin getty
70389 328402 0 0 3 0x14200 acct acct
65099 214079 0 0 3 0x14200 bored sosplice
85866 499454 0 0 3 0x14280 nfsidl nfsio
37074 56433 0 0 3 0x14280 nfsidl nfsio
6178 31 0 0 3 0x14280 nfsidl nfsio
14643 47231 0 0 3 0x14280 nfsidl nfsio
60928 8928 0 0 3 0x14280 nfsidl nfsio
19411 522135 0 0 3 0x14280 nfsidl nfsio
12506 454545 0 0 3 0x14280 nfsidl nfsio
94459 457497 0 0 3 0x14280 nfsidl nfsio
12964 222712 0 0 3 0x14280 nfsidl nfsio
5542 116492 0 0 3 0x14280 nfsidl nfsio
69323 2053 0 0 3 0x14280 nfsidl nfsio
45962 237265 0 0 3 0x14280 nfsidl nfsio
80410 36841 0 0 3 0x14280 nfsidl nfsio
50678 309808 0 0 3 0x14280 nfsidl nfsio
77110 403809 0 0 3 0x14280 nfsidl nfsio
22262 178818 0 0 3 0x14280 nfsidl nfsio
53859 335413 0 0 3 0x14280 nfsidl nfsio
2314 323048 0 0 3 0x14280 nfsidl nfsio
45729 414303 0 0 3 0x14280 nfsidl nfsio
41798 117434 0 0 3 0x14280 nfsidl nfsio
94841 411147 91833 0 3 0x1a000082 wait syz-fuzzer
94841 415404 91833 0 3 0x1e000082 nanoslp syz-fuzzer
94841 429172 91833 0 3 0x1e000082 kqread syz-fuzzer
94841 493934 91833 0 3 0x1e000082 thrsleep syz-fuzzer
94841 418620 91833 0 3 0x1e000082 wait syz-fuzzer
94841 110827 91833 0 3 0x1e000082 wait syz-fuzzer
94841 75462 91833 0 3 0x1e000082 wait syz-fuzzer
94841 339224 91833 0 3 0x1e000082 thrsleep syz-fuzzer
94841 132495 91833 0 3 0x1e000082 thrsleep syz-fuzzer
94841 38787 91833 0 3 0x1e000082 wait syz-fuzzer
94841 77692 91833 0 3 0x1e000082 thrsleep syz-fuzzer
94841 504615 91833 0 3 0x1e000082 wait syz-fuzzer
94841 243665 91833 0 3 0x1e000082 wait syz-fuzzer
94841 369297 91833 0 3 0x1e000082 wait syz-fuzzer
94841 337095 91833 0 3 0x1e000082 thrsleep syz-fuzzer
91833 289757 16954 0 3 0x810008a sigsusp ksh
16954 249504 94959 0 3 0x1800009a kqread sshd
94959 306727 1 0 3 0x18000088 kqread sshd
89773 276200 22093 73 3 0x19100090 kqread syslogd
22093 77799 1 0 3 0x18100082 sbwait syslogd
95867 83842 1 0 3 0x18100080 kqread resolvd
92044 471949 79523 77 3 0x18100092 kqread dhcpleased
43029 480119 79523 77 3 0x18100092 kqread dhcpleased
79523 500278 1 0 3 0x18000080 kqread dhcpleased
25049 273800 0 0 3 0x14200 bored smr
114 69498 0 0 2 0x14200 zerothread
49215 462954 0 0 3 0x14200 aiodoned aiodoned
84360 346588 0 0 3 0x14200 syncer update
2307 160751 0 0 3 0x14200 cleaner cleaner
*88450 290203 0 0 7 0x14200 reaper
464 293619 0 0 3 0x14200 pgdaemon pagedaemon
62765 222927 0 0 3 0x14200 bored viomb
42740 428165 0 0 3 0x40014200 acpi0 acpi0
75555 43187 0 0 3 0x14200 bored softnet3
84988 106804 0 0 3 0x14200 bored softnet2
12271 75978 0 0 3 0x14200 bored softnet1
62143 122226 0 0 3 0x14200 bored softnet0
6328 23663 0 0 3 0x14200 bored systqmp
42056 189568 0 0 3 0x14200 bored systq
61805 74685 0 0 3 0x40014200 tmoslp softclock
6917 451375 0 0 3 0x40014200 idle0
1 343498 0 0 3 0x8080082 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 10201 6571K 7211K 166960K 17387 0
pcb 17 18K 19K 166960K 517 0
rtable 235 12K 12K 166960K 2865 0
pf 41 10K 11K 166960K 278 0
ifaddr 49 12K 13K 166960K 393 0
ifgroup 74 2K 3K 166960K 513 0
sysctl 4 1K 2K 166960K 6 0
counters 36 18K 18K 166960K 139 0
ioctlops 0 0K 2K 166960K 243 0
iov 0 0K 16K 166960K 163 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1524 96K 96K 166960K 4812 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 72K 76K 166960K 116 0
VM map 2 1K 1K 166960K 2 0
sem 12 1K 1K 166960K 81 0
dirhash 12 2K 3K 166960K 63 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 14 49K 101K 166960K 3577 0
sigio 1 0K 0K 166960K 54 0
proc 58 59K 124K 166960K 2767 0
subproc 104 6K 7K 166960K 1079 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 400 0
in_multi 99 7K 7K 166960K 1034 0
ether_multi 1 0K 0K 166960K 26 0
mrt 1 0K 0K 166960K 13 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 91 413K 413K 166960K 91 0
exec 0 0K 1K 166960K 1768 0
pfkey data 0 0K 0K 166960K 6 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 283 93K 111K 166960K 29625 0
UVM aobj 14 2K 2K 166960K 20 0
pinsyscall 34 68K 101K 166960K 6739 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 170 0
NDP 17 0K 2K 166960K 288 0
temp 74 6812K 6940K 166960K 158070 0
kqueue 12 18K 30K 166960K 362 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 434 0 431 1 0 1 1 0 8 0
rtentry 112 1003 0 903 4 0 4 4 0 8 1
unpcb 144 2347 0 2334 6 0 6 6 0 8 5
syncache 336 5 0 5 1 0 1 1 0 8 1
tcpqe 32 45 0 45 1 0 1 1 0 8 1
tcpcb 808 933 0 926 8 0 8 8 0 8 7
arp 88 180 0 163 1 0 1 1 0 8 0
ipq 40 13 0 12 1 0 1 1 0 8 0
ipqe 40 112 0 111 1 0 1 1 0 8 0
inpcb 352 3555 0 3546 15 6 9 13 0 8 8
nd6 104 268 0 244 1 0 1 1 0 8 0
pkpcb 40 19 0 19 1 0 1 1 0 8 1
kcovpl 48 83 0 75 1 0 1 1 0 8 0
ppxss 1072 5 0 5 1 0 1 1 0 8 1
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 4134 0 3688 68 40 28 29 0 8 0
art_table 32 4135 0 3688 4 0 4 4 0 8 0
art_node 16 995 0 906 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 10 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 79 0 69 1 0 1 1 0 8 0
shmpl 112 17 0 6 1 0 1 1 0 8 0
dirhash 1024 51 0 34 3 0 3 3 0 8 0
dino2pl 256 5909 0 4404 96 0 96 96 0 8 0
ffsino 240 5909 0 4404 90 0 90 90 0 8 0
nchpl 144 10549 0 9973 66 33 33 66 0 8 8
uvmvnodes 80 7296 0 0 149 0 149 149 0 8 0
vnodes 216 7296 0 0 406 0 406 406 0 8 0
vnodes: pool(0xffffffff82d60a60:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd805e6c2f90 (p 0xfffffd805e6c2000)
namei 1024 43242 0 43242 2 0 2 2 0 8 2
vcpupl 3904 10 0 2 2 0 2 2 0 8 0
vmpool 664 23 0 15 1 0 1 1 0 8 0
kstatmem 264 240 0 206 3 0 3 3 0 8 0
scsiplug 72 3 0 3 1 0 1 1 0 8 1
scxspl 216 69857 0 69856 8 0 8 8 1 8 7
plimitpl 152 577 0 561 1 0 1 1 0 8 0
sigapl 424 3746 0 3680 9 0 9 9 0 8 0
futexpl 64 51011 0 51010 1 0 1 1 0 8 0
knotepl 120 15023 0 14941 19 7 12 17 0 8 7
kqueuepl 184 812 0 803 4 0 4 4 0 8 3
pipepl 288 885 0 857 7 0 7 7 0 8 5
fdescpl 432 3706 0 3681 5 0 5 5 0 8 0
filepl 120 23760 0 23511 14 0 14 14 0 8 6
lockfpl 104 1012 0 1007 1 0 1 1 0 8 0
lockfspl 48 445 0 442 1 0 1 1 0 8 0
sessionpl 144 102 0 86 1 0 1 1 0 8 0
pgrppl 48 151 0 135 1 0 1 1 0 8 0
ucredpl 104 3291 0 3281 1 0 1 1 0 8 0
zombiepl 144 3685 0 3680 1 0 1 1 0 8 0
processpl 1072 3746 0 3680 6 0 6 6 0 8 1
procpl 656 6657 0 6572 8 0 8 8 0 8 0
sosppl 168 11 0 11 1 0 1 1 0 8 1
sockpl 504 6377 0 6352 46 35 11 21 0 8 7
mcl64k 65536 12 0 12 1 0 1 1 0 8 1
mcl12k 12288 5 0 5 1 0 1 1 0 8 1
mcl9k 9216 1 0 1 1 0 1 1 0 8 1
mcl8k 8192 89 0 88 1 0 1 1 0 8 0
mcl4k 4096 13 0 13 1 0 1 1 0 8 1
mcl2k 2048 39003 0 38902 43 22 21 36 0 8 7
mtagpl 96 166 0 163 2 0 2 2 0 8 1
mbufpl 256 93332 0 93103 39 17 22 24 0 8 6
bufpl 280 13094 0 5724 527 0 527 527 0 8 0
anonpl 24 568658 0 562414 91 0 91 91 0 188 37
amapchunkpl 152 96558 0 95903 41 0 41 41 0 158 11
amappl16 200 12506 0 12368 32 12 20 31 0 8 8
amappl15 192 20 0 19 1 0 1 1 0 8 0
amappl14 184 389 0 377 2 0 2 2 0 8 1
amappl13 176 18 0 18 1 0 1 1 0 8 1
amappl12 168 5465 0 5438 2 0 2 2 0 8 0
amappl11 160 56 0 46 1 0 1 1 0 8 0
amappl10 152 129 0 118 1 0 1 1 0 8 0
amappl9 144 144 0 144 1 0 1 1 0 8 1
amappl8 136 213 0 184 2 0 2 2 0 8 0
amappl7 128 83 0 68 1 0 1 1 0 8 0
amappl6 120 1323 0 1309 2 0 2 2 0 8 1
amappl5 112 477 0 465 1 0 1 1 0 8 0
amappl4 104 1010 0 979 2 0 2 2 0 8 1
amappl3 96 18132 0 18056 3 0 3 3 0 8 0
amappl2 88 4523 0 4447 4 0 4 4 0 8 2
amappl1 80 24939 0 24452 22 3 19 22 0 8 7
amappl 88 28337 0 28151 5 0 5 5 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 19 0 6 1 0 1 1 0 8 0
uaddrrnd 24 3729 0 3696 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3729 0 3696 1 0 1 1 0 8 0
vmmpekpl 168 30602 0 30542 4 0 4 4 0 8 0
vmmpepl 168 257179 0 255381 112 0 112 112 0 357 25
vmsppl 344 3728 0 3695 4 0 4 4 0 8 0
rwobjpl 24 71462 0 63082 51 0 51 51 0 8 0
pdppl 4096 7464 0 7398 301 229 72 85 0 8 6
pvpl 32 1541560 0 1528832 366 12 354 366 0 265 224
pmappl 216 3728 0 3695 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 711 0 343 11 0 11 11 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82923856) at panic+0x165 sys/kern/subr_prf.c:198
vwakeup(fffffd805e6c2438) at vwakeup+0x113 sys/kern/vfs_subr.c:1941
biodone(fffffd8066a5cc48) at biodone+0xd0 sys/kern/vfs_bio.c:1302
sd_buf_done(fffffd8076fd0e70) at sd_buf_done+0x1fd sys/scsi/sd.c:772
vioscsi_vq_done(ffff8000000a2228) at vioscsi_vq_done+0xb1 sys/dev/pv/vioscsi.c:350
intr_handler(ffff80002a5d5880,ffff80000006a080) at intr_handler+0x4f sys/arch/amd64/amd64/intr.c:544
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
pmap_do_remove(fffffd805e147be0,7529d9788000,7529d9888000,0) at pmap_do_remove+0x738 sys/arch/amd64/amd64/pmap.c:1915
uvm_unmap_kill_entry_withlock(fffffd8077a3bd78,fffffd806b1c77a8,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd8077a3bd78) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82923856) at panic+0x165 sys/kern/subr_prf.c:198
vwakeup(fffffd805e6c2438) at vwakeup+0x113 sys/kern/vfs_subr.c:1941
biodone(fffffd8066a5cc48) at biodone+0xd0 sys/kern/vfs_bio.c:1302
sd_buf_done(fffffd8076fd0e70) at sd_buf_done+0x1fd sys/scsi/sd.c:772
vioscsi_vq_done(ffff8000000a2228) at vioscsi_vq_done+0xb1 sys/dev/pv/vioscsi.c:350
intr_handler(ffff80002a5d5880,ffff80000006a080) at intr_handler+0x4f sys/arch/amd64/amd64/intr.c:544
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
Xspllower() at Xspllower+0x1d
pmap_do_remove(fffffd805e147be0,7529d9788000,7529d9888000,0) at pmap_do_remove+0x738 sys/arch/amd64/amd64/pmap.c:1915
uvm_unmap_kill_entry_withlock(fffffd8077a3bd78,fffffd806b1c77a8,0) at uvm_unmap_kill_entry_withlock+0x1a7 sys/uvm/uvm_map.c:1897
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
uvm_map_teardown(fffffd8077a3bd78) at uvm_map_teardown+0x157 sys/uvm/uvm_map.c:2534
uvmspace_free(fffffd8077a3bd78) at uvmspace_free+0x96 sys/uvm/uvm_map.c:3461
reaper(ffff80002a5d7c38) at reaper+0x15a sys/kern/kern_exit.c:463
end trace frame: 0x0, count: -14


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