Hello,
syzbot found the following issue on:
HEAD commit: dd2bb77956f6 SC_DEBUG() requires an initialized scsi_link...
git tree: openbsd
console output:
https://syzkaller.appspot.com/x/log.txt?x=1140edde700000
kernel config:
https://syzkaller.appspot.com/x/.config?x=bf87b6915a88cd0d
dashboard link:
https://syzkaller.appspot.com/bug?extid=ed53517a9a8fa3197793
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+ed5351...@syzkaller.appspotmail.com
panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 305
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*493062 50863 0 0 0x4000000 0K syz-executor.3
52982 64753 0 0x14000 0x200 1 reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8257608c) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff825ed4fc,ffffffff82634312,131,ffffffff825fed63) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000caf000) at tun_clone_destroy+0x278 sys/net/if_tun.c:305
if_clone_destroy(ffff80002c137900) at if_clone_destroy+0x132 sys/net/if.c:1218
soo_ioctl(fffffd8071fb4a30,80206979,ffff80002c137900,ffff800024e737a0) at soo_ioctl+0x26c
sys_ioctl(ffff800024e737a0,ffff80002c137a18,ffff80002c137a70) at sys_ioctl+0x4a2
syscall(ffff80002c137ae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff80002c137ae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x164fbdd6250, count: 6
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 305
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8257608c) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff825ed4fc,ffffffff82634312,131,ffffffff825fed63) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000caf000) at tun_clone_destroy+0x278 sys/net/if_tun.c:305
if_clone_destroy(ffff80002c137900) at if_clone_destroy+0x132 sys/net/if.c:1218
soo_ioctl(fffffd8071fb4a30,80206979,ffff80002c137900,ffff800024e737a0) at soo_ioctl+0x26c
sys_ioctl(ffff800024e737a0,ffff80002c137a18,ffff80002c137a70) at sys_ioctl+0x4a2
syscall(ffff80002c137ae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff80002c137ae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x164fbdd6250, count: -9
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002c137710
rbx 0xffffffff828f5bff cpu_info_full_primary+0x2bff
rdx 0
rcx 0
rax 0xffff800024e737a0
r8 0
r9 0x8080808080808080
r10 0xeff5fb8e5165282f
r11 0x27ed474c2f4edb8a
r12 0xffffffff828f5a00 cpu_info_full_primary+0x2a00
r13 0
r14 0
r15 0x1
rip 0xffffffff81b7c538 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff80002c137700
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor.3) pid=493062 stat=onproc
flags process=0 proc=4000000<THREAD>
pri=32, usrpri=82, nice=20
forw=0xffffffffffffffff, list=0xffff800024e722a0,0xffff800024e72550
process=0xffff8000211b6dc8 user=0xffff80002c132000, vmspace=0xfffffd807b307750
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
59521 192332 11429 0 2 0x480 syz-executor.1
59521 8649 11429 0 3 0x4000080 fsleep syz-executor.1
59521 146000 11429 0 3 0x4000080 fsleep syz-executor.1
50863 251429 76249 0 2 0 syz-executor.3
*50863 493062 76249 0 7 0x4000000 syz-executor.3
50863 167608 76249 0 3 0x4000080 fsleep syz-executor.3
33085 318519 20513 0 2 0x82000 syz-executor.5
33085 29054 20513 0 4 0x4082000 syz-executor.5
33085 454862 20513 0 2 0x4082000 syz-executor.5
33085 343525 20513 0 3 0x4002000 suspend syz-executor.5
24730 43707 69548 0 2 0x480 syz-executor.4
24730 378564 69548 0 3 0x4000080 netcon syz-executor.4
24730 139582 69548 0 3 0x4000080 fsleep syz-executor.4
24730 358166 69548 0 3 0x4000080 fsleep syz-executor.4
36885 314681 48321 0 2 0 syz-executor.2
36885 99097 48321 0 2 0x4000000 syz-executor.2
36885 61935 48321 0 2 0x4000000 syz-executor.2
47422 168101 45112 0 2 0x480 syz-executor.0
47422 77551 45112 0 3 0x4000080 kqsel syz-executor.0
47422 255249 45112 0 3 0x4000080 kqread syz-executor.0
23298 64772 63448 0 2 0x482 syz-executor.7
43339 39026 1 0 3 0x100083 ttyin getty
45112 200793 63448 0 2 0x482 syz-executor.0
76249 53187 63448 0 2 0x482 syz-executor.3
91827 464269 0 0 3 0x14200 acct acct
11429 139404 63448 0 2 0x482 syz-executor.1
48321 462944 63448 0 2 0x482 syz-executor.2
69548 4248 63448 0 2 0x482 syz-executor.4
77345 418708 0 0 3 0x14200 bored sosplice
68733 23238 63448 0 2 0x482 syz-executor.6
20513 61372 63448 0 2 0x482 syz-executor.5
63448 144471 99044 0 3 0x82 thrsleep syz-fuzzer
63448 236969 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 450696 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 394124 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 213073 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 152671 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 209748 99044 0 3 0x4000082 kqread syz-fuzzer
63448 283915 99044 0 3 0x4000082 thrsleep syz-fuzzer
63448 361780 99044 0 3 0x4000082 thrsleep syz-fuzzer
99044 465013 52575 0 3 0x10008a sigsusp ksh
52575 196875 60027 0 3 0x9a kqread sshd
60027 299923 1 0 3 0x88 kqread sshd
36335 187433 54009 74 3 0x1100092 bpf pflogd
54009 506193 1 0 3 0x80 netio pflogd
20658 266967 71850 73 3 0x1100090 kqread syslogd
71850 198729 1 0 3 0x100082 netio syslogd
63456 255084 1 0 3 0x100080 kqread resolvd
1706 260872 94555 77 2 0x100092 dhcpleased
10823 172874 94555 77 3 0x100092 kqread dhcpleased
94555 429931 1 0 3 0x80 kqread dhcpleased
67942 446521 0 0 3 0x14200 bored smr
93168 49657 0 0 2 0x14200 zerothread
45483 466763 0 0 3 0x14200 aiodoned aiodoned
6963 146471 0 0 3 0x14200 syncer update
30452 270698 0 0 3 0x14200 cleaner cleaner
64753 52982 0 0 7 0x14200 reaper
48600 462809 0 0 3 0x14200 pgdaemon pagedaemon
36428 363699 0 0 3 0x14200 bored viomb
89917 283091 0 0 3 0x40014200 acpi0 acpi0
80347 103365 0 0 3 0x40014200 idle1
67771 176870 0 0 3 0x14200 bored softnet
56278 481536 0 0 3 0x14200 bored systqmp
33826 142462 0 0 3 0x14200 bored systq
89621 385695 0 0 2 0x40014200 softclock
13637 19648 0 0 3 0x40014200 idle0
1 32200 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 1:
exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82a15e10)
#0 witness_lock+0x44d
#1 mtx_enter_try+0x100
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 uvm_pmr_freepages+0x10c sys/uvm/uvm_pmemrange.c:1289
#4 pmap_do_remove+0x666 sys/arch/amd64/amd64/pmap.c:1884
#5 uvm_unmap_kill_entry_withlock+0x1af sys/uvm/uvm_map.c:2139
#6 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline]
#6 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771
#7 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
#8 reaper+0x18b sys/kern/kern_exit.c:457
#9 proc_trampoline+0x1c
Process 50863 (syz-executor.3) thread 0xffff800024e737a0 (493062)
exclusive rwlock clonelk r = 0 (0xffffffff8299e970)
#0 witness_lock+0x44d
#1 if_clone_destroy+0x49
#2 soo_ioctl+0x26c
#3 sys_ioctl+0x4a2
#4 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#4 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#5 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff829eaf28)
#0 witness_lock+0x44d
#1 soo_ioctl+0x25a sys/kern/sys_socket.c:136
#2 sys_ioctl+0x4a2
#3 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#3 syscall+0x489 sys/arch/amd64/amd64/trap.c:585
#4 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10218 6560K 7509K 78643K 19631 0
pcb 13 13K 15K 78643K 603 0
rtable 154 16K 18K 78643K 1425 0
ifaddr 81 18K 20K 78643K 1022 0
sysctl 3 1K 1K 78643K 3 0
counters 54 35K 36K 78643K 180 0
ioctlops 0 0K 4K 78643K 3321 0
iov 0 0K 24K 78643K 450 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1514 95K 95K 78643K 3532 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 35 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 0K 78643K 475 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 16 57K 85K 78643K 4192 0
sigio 0 0K 0K 78643K 374 0
proc 70 87K 111K 78643K 969 0
subproc 104 6K 6K 78643K 256 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 192 0
in_multi 54 3K 6K 78643K 311 0
ether_multi 1 0K 0K 78643K 42 0
mrt 1 0K 0K 78643K 33 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 235 1049K 1049K 78643K 235 0
exec 0 0K 2K 78643K 1691 0
pfkey data 0 0K 0K 78643K 7 0
tdb 3 0K 0K 78643K 3 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 434 363K 363K 78643K 55616 0
UVM aobj 131 8K 8K 78643K 137 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 250 0
NDP 12 0K 2K 78643K 114 0
temp 139 4717K 4782K 78643K 58045 0
kqueue 13 20K 26K 78643K 359 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
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 522 0 519 9 8 1 4 0 8 0
rtentry 112 272 0 215 4 0 4 4 0 8 0
unpcb 136 10724 0 10709 52 49 3 10 0 8 2
syncache 296 15 0 15 5 5 0 1 0 8 0
tcpqe 32 188 0 188 4 4 0 1 0 8 0
tcpcb 736 1190 0 1178 44 42 2 12 0 8 0
arp 120 44 0 36 1 0 1 1 0 8 0
inpcb 304 3180 0 3168 54 50 4 11 0 8 3
rttmr 72 10 0 10 2 2 0 1 0 8 0
nd6 48 63 0 49 1 0 1 1 0 8 0
pkpcb 40 81 0 81 4 4 0 1 0 8 0
kcovpl 48 19 0 11 1 0 1 1 0 8 0
ppxss 1248 28 0 28 7 7 0 1 0 8 0
pfstscr 40 7 0 7 2 2 0 1 0 8 0
pffrag 232 64 0 64 3 2 1 1 0 482 1
pffrnode 88 64 0 64 3 2 1 1 0 8 1
pffrent 40 127 0 127 3 2 1 1 0 8 1
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 220 0 213 2 1 1 1 0 8 0
pftag 88 13 0 6 1 0 1 1 0 8 0
pfstitem 24 18 0 16 1 0 1 1 0 8 0
pfstkey 112 28 0 26 1 0 1 1 0 8 0
pfstate 320 23 0 21 2 1 1 2 0 8 0
pfrule 1360 1057 0 1025 6 3 3 3 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1079 0 799 31 5 26 29 0 8 2
art_table 32 1080 0 799 4 0 4 4 0 8 0
art_node 16 271 0 223 1 0 1 1 0 8 0
sysvmsgpl 40 121 0 100 1 0 1 1 0 8 0
semapl 112 473 0 463 1 0 1 1 0 8 0
shmpl 112 134 0 6 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 6849 0 5391 92 0 92 92 0 8 0
ffsino 272 6849 0 5391 98 0 98 98 0 8 0
nchpl 144 12426 0 10794 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 224 5926 0 0 349 0 349 349 0 8 0
namei 1024 45131 0 45131 7 6 1 2 0 8 1
percpumem 16 102 0 63 1 0 1 1 0 8 0
vcpupl 2048 18 0 0 3 0 3 3 0 8 0
vmpool 560 18 0 0 2 0 2 2 0 8 0
pfiaddrpl 120 159 0 149 2 1 1 1 0 8 0
scsiplug 72 4 0 4 1 1 0 1 0 8 0
scxspl 216 40354 0 40354 16 15 1 8 0 8 1
plimitpl 152 430 0 413 1 0 1 1 0 8 0
sigapl 424 4509 0 4462 8 1 7 8 0 8 0
futexpl 64 37257 0 37252 1 0 1 1 0 8 0
knotepl 120 354 0 0 10 1 9 9 0 8 0
kqueuepl 216 936 0 925 19 14 5 5 0 8 4
pipepl 336 815 0 787 17 14 3 8 0 8 0
fdescpl 496 4471 0 4442 5 1 4 5 0 8 0
filepl 152 35401 0 35152 75 60 15 22 0 8 2
lockfpl 104 1002 0 1000 2 1 1 2 0 8 0
lockfspl 48 283 0 281 1 0 1 1 0 8 0
sessionpl 144 37 0 20 1 0 1 1 0 8 0
pgrppl 48 120 0 103 1 0 1 1 0 8 0
ucredpl 96 3282 0 3268 1 0 1 1 0 8 0
zombiepl 144 4464 0 4462 2 1 1 1 0 8 0
processpl 1064 4509 0 4462 5 0 5 5 0 8 0
procpl 672 12774 0 12704 13 6 7 9 0 8 0
srpgc 96 14 0 14 5 4 1 1 0 8 1
sosppl 168 32 0 32 6 5 1 1 0 8 1
sockpl 480 14510 0 14480 372 360 12 37 0 8 8
mcl64k 65536 23 0 0 3 0 3 3 0 8 0
mcl16k 16384 17 0 0 3 1 2 3 0 8 0
mcl12k 12288 21 0 0 2 0 2 2 0 8 0
mcl9k 9216 10 0 0 1 0 1 1 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 24 0 0 3 0 3 3 0 8 0
mcl2k2 2112 12 0 0 1 0 1 1 0 8 0
mcl2k 2048 232 0 0 23 2 21 23 0 8 0
mtagpl 96 254 0 0 5 0 5 5 0 8 0
mbufpl 256 763 0 0 38 0 38 38 0 8 0
bufpl 288 10852 0 4516 453 0 453 453 0 8 0
anonpl 24 1359140 0 1342100 235 90 145 180 0 186 8
amapchunkpl 152 133723 0 132828 81 44 37 64 0 158 1
amappl16 200 17819 0 17195 146 104 42 58 0 8 8
amappl15 192 1101 0 1094 1 0 1 1 0 8 0
amappl14 184 181 0 174 1 0 1 1 0 8 0
amappl13 176 1285 0 1280 1 0 1 1 0 8 0
amappl12 168 1232 0 1225 2 1 1 1 0 8 0
amappl11 160 45 0 31 1 0 1 1 0 8 0
amappl10 152 270 0 262 1 0 1 1 0 8 0
amappl9 144 511 0 508 1 0 1 1 0 8 0
amappl8 136 1264 0 1179 3 0 3 3 0 8 0
amappl7 128 532 0 520 1 0 1 1 0 8 0
amappl6 120 284 0 261 2 1 1 2 0 8 0
amappl5 112 3608 0 3586 1 0 1 1 0 8 0
amappl4 104 1316 0 1288 2 0 2 2 0 8 0
amappl3 96 1973 0 1955 1 0 1 1 0 8 0
amappl2 88 2469 0 2411 3 1 2 3 0 8 0
amappl1 80 84202 0 83577 22 8 14 19 0 8 0
amappl 88 54843 0 54539 8 0 8 8 0 92 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 72 136 0 6 3 0 3 3 0 8 0
uaddrrnd 24 4489 0 4441 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 4489 0 4441 1 0 1 1 0 8 0
vmmpekpl 168 38657 0 38584 4 0 4 4 0 8 0
vmmpepl 168 416704 0 413922 228 98 130 149 0 357 5
vmsppl 368 4488 0 4440 6 1 5 5 0 8 0
rwobjpl 56 113473 0 105699 120 7 113 113 0 8 1
pdppl 4096 8985 0 8898 273 186 87 87 0 8 0
pvpl 32 2326562 0 2304719 463 231 232 308 0 265 24
pmappl 248 4488 0 4440 5 1 4 4 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 1110 0 262 25 0 25 25 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440
panic(ffffffff8257608c) at panic+0x177 sys/kern/subr_prf.c:202
__assert(ffffffff825ed4fc,ffffffff82634312,131,ffffffff825fed63) at __assert+0x25 sys/kern/subr_prf.c:161
tun_clone_destroy(ffff800000caf000) at tun_clone_destroy+0x278 sys/net/if_tun.c:305
if_clone_destroy(ffff80002c137900) at if_clone_destroy+0x132 sys/net/if.c:1218
soo_ioctl(fffffd8071fb4a30,80206979,ffff80002c137900,ffff800024e737a0) at soo_ioctl+0x26c
sys_ioctl(ffff800024e737a0,ffff80002c137a18,ffff80002c137a70) at sys_ioctl+0x4a2
syscall(ffff80002c137ae0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff80002c137ae0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x164fbdd6250, count: -9
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff829ead20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829ead20) at __mp_lock+0x122 sys/kern/kern_lock.c:147
uvm_unmap_detach(ffff8000211350d0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615
uvm_map_teardown(fffffd807b338478) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789
uvmspace_free(fffffd807b338478) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: 7
ddb{1}> trace
x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff829ead20) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff829ead20) at __mp_lock+0x122 sys/kern/kern_lock.c:147
uvm_unmap_detach(ffff8000211350d0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615
uvm_map_teardown(fffffd807b338478) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789
uvmspace_free(fffffd807b338478) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685
reaper(ffff8000210f9a40) at reaper+0x18b sys/kern/kern_exit.c:457
end trace frame: 0x0, count: -8
---
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