kernel: protection fault trap, code=0
Stopped at      bpfdetach+0x70: movq    0(%r15),%r12
ddb{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> show kasan
No such command
ddb{0}> trace
bpfdetach(ffff800001611000) at bpfdetach+0x70 sys/net/bpf.c:1770
if_detach(ffff800001611000) at if_detach+0x12b sys/net/if.c:1289
tun_clone_destroy(ffff800001611000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343
if_clone_destroy(ffff80003c3e9c30) at if_clone_destroy+0x205 sys/net/if.c:1479
ifioctl(ffff80000161d1b8,80206979,ffff80003c3e9c30,ffff80003c3b9248) at ifioctl+0x59d sys/net/if.c:2160
sys_ioctl(ffff80003c3b9248,ffff80003c3e9e10,ffff80003c3e9d60) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3e9e10) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3e9e10) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xde85f3b9950, count: -8
ddb{0}> show registers
rdi               0xffff80002f38c000
rsi                          0x14de4    acpi_pdirpa+0xc55
rbp               0xffff80003c3e9a50
rbx                       0x80206979    __kernel_virt_to_phys+0x206979
rdx               0xffff80002f38c000
rcx                          0x14de3    acpi_pdirpa+0xc54
rax               0xffffffff8324d6a9    bpfdetach+0xb9
r8                0xffff80003c407150
r9                                 0
r10               0xebf0707ecea02c08
r11               0xafc4f5bcd571dc15
r12               0xdead0002dead4110
r13               0xffff800001611648
r14               0xffff800001611000
r15               0xdead0002dead4110
rip               0xffffffff8324d660    bpfdetach+0x70
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80003c3e9a20
ss                              0x10
bpfdetach+0x70: movq    0(%r15),%r12
ddb{0}> show proc
PROC (syz-executor) tid=75079 pid=48354 tcnt=4 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=32, usrpri=82, slppri=32, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80003c3b9a10,0xffff800033f8dcc8
    process=0xffff80002a37c4e8 user=0xffff80003c3e4000, vmspace=0xfffff1806cecb3e8
    estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
   PID     TID   PPID   UID  S      PRLAGS     PFLAGS WAIT      COMMAND
  9798  382081  36683     0  3           0       0x80 nanoslp   syz-executor
  9798   20229  36683     0  2           0  0x4000000           syz-executor
 59620   48900  38419     0  2           0          0           syz-executor
 59620   91031  38419     0  3           0  0x4000080 kqsel     syz-executor
 59620  105914  38419     0  2           0  0x4000000           syz-executor
 48354   91588  53097     0  2           0          0           syz-executor
*48354   75079  53097     0  7           0  0x4000000           syz-executor
 48354  228293  53097     0  3           0  0x4000080 fsleep    syz-executor
 48354  468956  53097     0  3           0  0x4000001 inode     syz-executor
 13254  210478  64594     0  2           0          0           syz-executor
 13254  226978  64594     0  3           0  0x4000000 clonelk   syz-executor
 13254  181991  64594     0  2           0  0x4000001           syz-executor
 77952  119351  69826     0  3           0       0x80 nanoslp   syz-executor
 77952  226363  69826     0  3           0  0x4000080 fsleep    syz-executor
 77952  257332  69826     0  3           0  0x4000080 ttyout    syz-executor
 23041  213198      0     0  3     0x14000      0x200 acct      acct
 88771   62971  46373     0  3           0       0x80 nanoslp   syz-executor
 88771  506567  46373     0  3           0  0x4000080 kqread    syz-executor
 71386  411175      1     0  3         0x2       0x80 nanoslp   getty
  4824   74987  23569 60929  4      0x2010    0x80000           syz-executor
  4824  175138  23569 60929  2      0x2010  0x4080000           syz-executor
  4824  479734  23569 60929  3      0x2010  0x4000000 suspend   syz-executor
  4824  215381  23569 60929  4      0x2010  0x4080000           syz-executor
 69826  458478  98155     0  3         0x2       0x80 nanoslp   syz-executor
 36683   74472  98155     0  3         0x2       0x80 nanoslp   syz-executor
 53097  361875  98155     0  3         0x2       0x80 nanoslp   syz-executor
 38419   97325  98155     0  3         0x2       0x80 nanoslp   syz-executor
 23569  350124  98155     0  3         0x2       0x80 nanoslp   syz-executor
 64232  396571  98155     0  3         0x2       0x80 nanoslp   syz-executor
 46373  362237  98155     0  3         0x2       0x80 nanoslp   syz-executor
 64594   95891  98155     0  3         0x2       0x80 nanoslp   syz-executor
 98155  500089  61798     0  3         0x2       0x80 kqread    syz-executor
 61798  340836  38492     0  3    0x100002       0x88 sigsusp   ksh
 38492   16700  58166     0  3        0x10       0x88 kqread    sshd-session
 58166   54544  64736     0  3        0x12       0x80 kqread    sshd-session
 64736  479832      1     0  3           0       0x88 kqread    sshd
 60288  109532  46185    74  3   0x1100012       0x80 bpf       pflogd
 46185   51723      1     0  3           0       0x80 sbwait    pflogd
 87345  214061  48634    73  3   0x1100010       0x80 kqread    syslogd
 48634   34383      1     0  3    0x100002       0x80 sbwait    syslogd
 17807  424174      1     0  3    0x100000       0x80 kqread    resolvd
 28546   14027  79603    77  3    0x100012       0x80 kqread    dhcpleased
 19885  137000  79603    77  3    0x100012       0x80 kqread    dhcpleased
 79603  212490      1     0  3           0       0x80 kqread    dhcpleased
 84677  292716      0     0  3     0x14000      0x200 bored     smr
 60712  331830      0     0  3     0x14000      0x200 pgzero    zerothread
 92745  409413      0     0  3     0x14000      0x200 aiodoned  aiodoned
 63171  329112      0     0  3     0x14000      0x200 syncer    update
 56144  313164      0     0  3     0x14000      0x200 cleaner   cleaner
 62610  467434      0     0  3     0x14000      0x200 reaper    reaper
 22761  251105      0     0  3     0x14000      0x200 pgdaemon  pagedaemon
 21120  375115      0     0  3     0x14000      0x200 bored     viomb
 39929  198710      0     0  3     0x14000 0x40000200 acpi0     acpi0
 96143   22028      0     0  3     0x14000 0x40000200           idle1
 32368  197306      0     0  3     0x14000      0x200 bored     softnet1
 60310  287808      0     0  3     0x14000      0x200 bored     softnet0
 17246  286819      0     0  3     0x14000      0x200 bored     systqmp
 49875   85371      0     0  3     0x14000      0x200 bored     systq
 25821   84155      0     0  3     0x14000      0x200 tmoslp    softclockmp
 67666    3627      0     0  3     0x14000 0x40000200 tmoslp    softclock
 17650  419664      0     0  3     0x14000 0x40000200           idle0
     1  135948      0     0  3         0x2       0x80 wait      init
     0       0     -1     0  3     0x10000      0x200 scheduler swapper
ddb{0}> show all locks
Process 48354 (syz-executor) thread 0xffff80003c3b9248 (75079)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83ad5cc0)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2  sleep_finish+0x2d8 sys/kern/kern_synch.c:369
#3  rw_do_enter_write+0x1dc sys/kern/kern_rwlock.c:298
#4  lf_purgelocks+0x2f sys/kern/vfs_lockf.c:731
#5  vgonel+0x47e sys/kern/vfs_subr.c:1232
#6  vop_generic_revoke+0x3ea sys/kern/vfs_default.c:124
#7  VOP_REVOKE+0x65 sys/kern/vfs_vops.c:291
#8  vdevgone+0x17b sys/kern/vfs_subr.c:-1
#9  bpfsdetach+0x155 sys/net/bpf.c:1794
#10 bpfdetach+0xa6 sys/net/bpf.c:-1
#11 if_detach+0x12b sys/net/if.c:1289
#12 tun_clone_destroy+0x2ce sys/net/if_tun.c:343
#13 if_clone_destroy+0x205 sys/net/if.c:1479
#14 ifioctl+0x59d sys/net/if.c:2160
#15 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#16 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#16 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#17 Xsyscall+0x128
exclusive rwlock clonelk r = 0 (0xffffffff8398b798)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  if_clone_destroy+0x93 sys/net/if.c:-1
#3  ifioctl+0x59d sys/net/if.c:2160
#4  sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#5  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#6  Xsyscall+0x128
Process 13254 (syz-executor) thread 0xffff800033f8dcb8 (181991)
exclusive rrwlock inode r = 0 (0xfffff1806ed3e8f8)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vget+0x2a2 sys/kern/vfs_subr.c:692
#6  ktrwriteraw+0x175 sys/kern/kern_ktrace.c:689
#7  ktrstruct+0x197 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline]
#7  ktrstruct+0x197 sys/kern/kern_ktrace.c:315
#8  sys_kevent+0x34a sys/kern/kern_event.c:1298
#9  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#9  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#10 Xsyscall+0x128
Process 4824 (syz-executor) thread 0xffff80003c3b94e0 (175138)
exclusive rrwlock inode r = 0 (0xfffff18066b4d0c8)
#0  witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0  witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1  rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2  rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3  VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4  vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5  vn_write+0x18f sys/kern/vfs_vnops.c:411
#6  dofilewritev+0x2bd sys/kern/sys_generic.c:384
#7  sys_write+0xa2 sys/kern/sys_generic.c:300
#8  syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8  syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#9  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf 11102  12188K   12373K 166960K     12500        0
            pcb    18     12K      12K 166960K        67        0
         rtable   185      6K      10K 166960K       406        0
             pf    34     17K      24K 166960K       146        0
         ifaddr    37      6K       7K 166960K        63        0
        ifgroup    49      2K       2K 166960K        87        0
         sysctl     3      1K       9K 166960K         9        0
       counters    70     36K      37K 166960K       118        0
       ioctlops     0      0K       4K 166960K      1618        0
            iov     0      0K      12K 166960K        20        0
          mount     1      1K       1K 166960K         1        0
            log     0      0K       0K 166960K         4        0
         vnodes  1327     83K      84K 166960K      1637        0
      UFS quota     1     32K      32K 166960K         1        0
      UFS mount     5     36K      36K 166960K         5        0
            shm     2      1K       5K 166960K         9        0
         VM map     2      1K       1K 166960K         2        0
            sem    12      0K       0K 166960K        33        0
        dirhash    12      2K       2K 166960K        18        0
           ACPI  1692    195K     286K 166960K     12470        0
      file desc    17     61K      97K 166960K       413        0
          sigio     0      0K       0K 166960K         6        0
           proc    73    115K     164K 166960K       615        0
        subproc    72      4K       4K 166960K        72        0
    NFS srvsock     1      0K       0K 166960K         1        0
     NFS daemon     1     16K      16K 166960K         1        0
    ip_moptions     0      0K       0K 166960K       155        0
       in_multi    81      5K       6K 166960K       114        0
    ether_multi     1      0K       0K 166960K         3        0
            mrt     0      0K       0K 166960K        14        0
    ISOFS mount     1     32K      32K 166960K         1        0
  MSDOSFS mount     1     16K      16K 166960K         1        0
           ttys   223    996K     996K 166960K       223        0
           exec     0      0K       1K 166960K       417        0
   fusefs mount     1     32K      32K 166960K         1        0
            tdb     3      0K       0K 166960K         3        0
        VM swap     8     62K      64K 166960K        10        0
       UVM amap   256    168K     178K 166960K      5710        0
       UVM aobj    13      2K       2K 166960K        13        0
     pinsyscall    42     84K     106K 166960K      1603        0
        memdesc     1      4K       4K 166960K         1        0
    crypto data     1      1K       1K 166960K         1        0
    ip6_options     1      0K       0K 166960K        11        0
            NDP    11      0K       2K 166960K        41        0
           temp    39   9115K    9179K 166960K     24649        0
         kqueue    18     28K      28K 166960K        85        0
      SYN cache     2     16K      16K 166960K         2        0
ddb{0}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache    128       28    0        0     1     0     1     1     0     8    0
rtpcb      120       45    0       42     1     0     1     1     0     8    0
rtentry    176      121    0       39     6     0     6     6     0     8    0
unpcb      144      186    0      167     1     0     1     1     0     8    0
syncache   336        9    0        9     2     1     1     1     0     8    1
tcpcb      736       80    0       72     1     0     1     1     0     8    0
arp        136       19    0        5     1     0     1     1     0     8    0
inpcb      328      327    0      312     7     3     4     4     0     8    2
nd6        152       29    0        8     2     0     2     2     0     8    0
pkpcb       40        2    0        2     1     0     1     1     0     8    1
kcovpl      48        8    0        0     1     0     1     1     0     8    0
ppxss      1192      22    0       20     1     0     1     1     0     8    0
pppxif     1576       1    0        1     1     1     0     1     0     8    0
pfstscr     40        5    0        4     1     0     1     1     0     8    0
pffrag     232        2    0        0     1     0     1     1     0   482    0
pffrnode    88        1    0        0     1     0     1     1     0     8    0
pffrent     40        2    0        0     1     0     1     1     0     8    0
pfosfp      40     1428    0     1428     5     5     0     5     0     8    0
pfosfpen   112     1428    0     1428    21    21     0    21     0     8    0
pfrktable  1344      11    0       11     1     0     1     1     0     8    1
pfanchor   1288       8    0        8     1     0     1     1     0     8    1
pftag       88        2    0        2     1     1     0     1     0     8    0
pfstitem    24       30    0        1     1     0     1     1     0     8    0
pfstkey    128       34    0        5     1     0     1     1     0     8    0
pfstate    448       30    0        3     4     0     4     4     0     8    1
pfrule     1360      37    0       36     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      557    0      160    33     1    32    33     0     8    4
art_table   40      558    0      160     6     0     6     6     0     8    0
art_node    32      121    0       47     1     0     1     1     0     8    0
sysvmsgpl   40       41    0        1     1     0     1     1     0     8    0
semupl     112        1    0        1     1     1     0     1     0     8    0
semapl      72       29    0       19     1     0     1     1     0     8    0
shmpl      112       10    0        0     1     0     1     1     0     8    0
dirhash    1024      21    0        4     3     0     3     3     0     8    0
dino2pl    256     2128    0      659    93     0    93    93     0     8    0
ffsino     296     2128    0      659   114     0   114   114     0     8    0
nchpl      144     2740    0     1028    64     0    64    64     0     8    0
rtmask      32        5    0        4     1     0     1     1     0     8    0
vnodes     216     2387    0        0   133     0   133   133     0     8    0
namei      1024    9115    0     9115     3     2     1     2     0     8    1
percpumem   16       75    0       24     1     0     1     1     0     8    0
pfiaddrpl  120        2    0        2     1     0     1     1     0     8    1
kstatmem   264       53    0       28     3     1     2     3     0     8    0
scxspl     216    10051    0    10051     4     3     1     3     1     8    1
plimitpl   152      128    0      110     1     0     1     1     0     8    0
sigapl     424      741    0      692     7     1     6     7     0     8    0
knotepl    120      312    0        0    10     0    10    10     0     8    0
kqueuepl   224      139    0      123     1     0     1     1     0     8    0
pipepl     344      203    0      176     8     2     6     6     0     8    3
fdescpl    528      724    0      693     3     0     3     3     0     8    0
filepl     160     3799    0     3566    16     2    14    14     0     8    4
lockfpl    104      201    0      197     1     0     1     1     0     8    0
lockfspl    48       91    0       87     1     0     1     1     0     8    0
sessionpl  144       35    0       27     1     0     1     1     0     8    0
pgrppl      48       48    0       32     1     0     1     1     0     8    0
ucredpl    104      543    0      528     1     0     1     1     0     8    0
zombiepl   144      799    0      798     1     0     1     1     0     8    0
processpl  1232     741    0      692     5     1     4     5     0     8    0
procpl     664     1273    0     1210     7     1     6     6     0     8    0
sockpl     752      571    0      534    11     3     8     8     0     8    4
mcl64k     65536      3    0        0     1     0     1     1     0     8    0
mcl16k     16384      3    0        0     1     0     1     1     0     8    0
mcl8k      8192       4    0        0     1     0     1     1     0     8    0
mcl4k      4096     121    0        0    16     0    16    16     0     8    0
mcl2k2     2112       1    0        0     1     0     1     1     0     8    0
mcl2k      2048      33    0        0     5     0     5     5     0     8    0
mextrefs    64       34    0        0     1     0     1     1     0     8    0
mtagpl      96        8    0        0     1     0     1     1     0     8    0
mbufpl     256      211    0        0    14     0    14    14     0     8    0
bufpl      272     3642    0      105   236     0   236   236     0     8    0
anonpl      32     6177    0        0    50     0    50    50     0   247    0
amapchunkpl 152   17587    0    17025    32     5    27    27     0   158    5
amappl16   200     2385    0     2238    10     2     8     8     0     8    0
amappl15   192        4    0        4     1     1     0     1     0     8    0
amappl14   184      444    0      443     1     0     1     1     0     8    0
amappl13   176      130    0      118     1     0     1     1     0     8    0
amappl12   168      982    0      950     2     0     2     2     0     8    0
amappl11   160        6    0        6     1     1     0     1     0     8    0
amappl10   152       66    0       52     1     0     1     1     0     8    0
amappl9    144      275    0      275     1     1     0     1     0     8    0
amappl8    136      102    0      100     1     0     1     1     0     8    0
amappl7    128      152    0      139     1     0     1     1     0     8    0
amappl6    120      155    0      153     1     0     1     1     0     8    0
amappl5    112      102    0       91     1     0     1     1     0     8    0
amappl4    104      298    0      282     1     0     1     1     0     8    0
amappl3     96     3146    0     3034     3     0     3     3     0     8    0
amappl2     88      851    0      771     2     0     2     2     0     8    0
amappl1     80    11773    0    11158    15     2    13    15     0     8    0
amappl      88     4917    0     4735     5     0     5     5     0    92    0
uvmvnodes   80      106    0        0     3     0     3     3     0     8    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma1024    1024       3    0        2     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       12    0        0     1     0     1     1     0     8    0
uaddrrnd    24      724    0      693     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      724    0      693     1     0     1     1     0     8    0
vmmpekpl   168     8145    0     8108     3     0     3     3     0     8    0
vmmpepl    168    54739    0    52625    94     1    93    93     0   357    0
vmsppl     488      723    0      692     5     1     4     5     0     8    0
rwobjpl     80    18505    0    17303    26     1    25    25     0     8    0
pdppl      4096    1455    0     1384   101    30    71    87     0     8    0
pvpl        32    13780    0        0   111     0   111   111     0   265    0
pmappl     256      723    0      692     3     0     3     3     0     8    0
extentpl    40       45    0       27     1     0     1     1     0     8    0
phpool     112      523    0       37    14     0    14    14     0     8    0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
bpfdetach(ffff800001611000) at bpfdetach+0x70 sys/net/bpf.c:1770
if_detach(ffff800001611000) at if_detach+0x12b sys/net/if.c:1289
tun_clone_destroy(ffff800001611000) at tun_clone_destroy+0x2ce sys/net/if_tun.c:343
if_clone_destroy(ffff80003c3e9c30) at if_clone_destroy+0x205 sys/net/if.c:1479
ifioctl(ffff80000161d1b8,80206979,ffff80003c3e9c30,ffff80003c3b9248) at ifioctl+0x59d sys/net/if.c:2160
sys_ioctl(ffff80003c3b9248,ffff80003c3e9e10,ffff80003c3e9d60) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3e9e10) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3e9e10) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xde85f3b9950, count: -8
ddb{0}> machine ddbcpu 1
Stopped at      x86_ipi_db+0x27:        addq    $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
witness_checkorder(ffffffff83a7abe8,9,0) at witness_checkorder+0x2b0 sys/kern/subr_witness.c:830
mtx_enter(ffffffff83a7abd8) at mtx_enter+0x95 sys/kern/kern_lock.c:406
uvm_pageclean(fffff180081d6258) at uvm_pageclean+0x29c sys/uvm/uvm_page.c:937
uvm_pagefree(fffff180081d6258) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:977
uvm_anfree(fffff18060a65c08) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112
amap_wipeout(fffff1806f0d7c10) at amap_wipeout+0x1d6 sys/uvm/uvm_amap.c:-1
uvm_unmap_detach(ffff80003c401c40,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359
uvm_map_teardown(fffff1806fb9c5c0) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2536
exit1(ffff800033f8d258,0,0,1) at exit1+0x71b sys/kern/kern_exit.c:260
sys_exit(ffff800033f8d258,ffff80003c401e10,ffff80003c401d60) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003c401e10) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c401e10) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x782985cd5930, count: -15