[Bug 262698] Weirdly high memory usage without anything running in the system

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 21 Apr 2022 09:50:41 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262698

--- Comment #6 from dmilith <dmilith@me.com> ---
After 22h of building software bundles the output from the `vmstat -mz`:

```
[1650534269] vks4:~ λ vmstat -mz
         Type InUse MemUse Requests  Size(s)
 NFSD session     1     1K        1  1024
    pfs_nodes    20     8K       20  384
  pfs_vncache     1    16K        1  16384
geom_flashmap     0     0K        5  256
         GEOM   135    25K     5754 
16,32,64,128,256,512,1024,2048,4096,8192,16384
    raid_data     0     0K      420  32,128,256
CAM I/O Scheduler     1     1K        1  128
         cdev     2     1K        2  256
     filedesc     2     8K     1967  16,32,64,4096,8192,16384,32768
      pwddesc    46     3K 13987633  64
        sigio     0     0K        1  64
     filecaps     1     1K   773288  16,32,64,256
      kdtrace   401    92K 14638505  64,256
         kenv    45    10K       45  16,32,64,128,8192
       kqueue    46     3K 13989271  64,256,2048,4096
    proc-args    63     3K  6711313  16,32,64,128,256
        hhook    13     4K       13  256
      ithread   106    16K      106  32,128,256
       prison     8     1K        8  16,32
       KTRACE   100    13K      100  128
       linker   281  7257K      605 
16,32,64,128,256,384,512,2048,4096,8192,16384
        lockf   181    23K    94705  64,128
   loginclass     3     1K        3  64
       devbuf 20026 52783K    20158 
16,32,64,128,256,384,512,1024,2048,4096,8192,16384
         temp    18    49K 65154211 
16,32,64,128,256,384,512,1024,2048,4096,8192,16384,32768,65536
        evdev     2     2K        2  1024
       module   521    66K      521  128
     mtx_pool     2    72K        2  8192,65536
          osd    40     1K       51  16,32,64,128,256
     pmchooks     1     1K        1  128
          pmc     1     1K        1  128
      session    14     2K    15469  128
         proc     3    33K        3  1024,16384
      subproc   248   260K 13988008  384,4096
         cred    19     5K  2389841  256
       clocks  2503   188K     2533  16,32,64,256
          phy    24     2K       24  16,64,128
      hwreset    20     1K       20  32
    regulator    78     9K       78  16,32,64,256
       plimit    11     3K   225600  256
      uidinfo     4     5K    13827  128,4096
fixedregulator     4     1K        4  64
       sysctl     1     1K     7067  32,64
    sysctloid 43254  2375K    43416  16,32,64,128
    sysctltmp     0     0K  1318487  16,32,64,256,1024
       syscon    28     2K       28  64
        gpioc   165    23K      165  16,4096
      tidhash     3   158K        3  2048,32768
      callout     6  1536K        6
         umtx   920   115K      920  128
     p1003.1b     1     1K        1  16
         SWAP     1   524K        1
          bus  1509   139K   210259  16,32,64,128,256,4096
       bus-sc   155  3497K   190897 
16,32,64,128,256,384,512,1024,2048,4096,8192,16384,32768,65536
      devstat    14    29K       14  32,4096
 eventhandler   110    10K      110  64,128
     firmware     2     1K        2  32,128
   gtaskqueue    42    30K       42  16,32,384,8192
         kobj   356  1424K      981  4096
      Per-cpu     1     1K        1  32
         rman   201    24K      209  32,128
         sbuf     1     1K    57153  16,32,64,128,256,512,1024,4096,16384,32768
       kbdmux     5    22K        5  384,1024,2048,16384
          LED     4     1K        4  16,128
      md_disk     1     4K        1  4096
    taskqueue    66    11K       66  16,32,64,128,384
       Unitno    26     2K      538  32,64
         vmem     5   273K      121 
128,256,512,1024,2048,4096,8192,16384,32768,65536
      eventfd     0     0K      359  128
     ioctlops     0     0K    42271  256,384,512,1024,2048
       select    10     2K    96185  128
          iov     0     0K 141026443  16,32,64,128,256,384,512,1024,2048
        selfd    35     3K 27157056  64
     procdesc     1     1K    36900  128
          msg     4    30K        4  2048,4096,8192,16384
          sem     4   106K        4  2048,4096
          shm     1    32K        5  2048,32768
          tty     3     3K       91  1024
          pts     1     1K       89  256
     mbuf_tag     0     0K       16  32
        shmfd     1     8K       37  64,256,1024,8192
       soname     4     1K   121980  16,32,128
          pcb    17   777K    18315  16,32,64,1024,2048
    CAM queue     7     3K       29  16,32,512
          acl     0     0K   529068  4096
       ofwcpu     8     1K        8  64
     openfirm  1115    29K     2118  16,32,64,128,256
      entropy     0     0K  1272325  16,32,64,128,256,4096
CAM dev queue     3     1K        3  64
       feeder     7     1K        7  32
     vfscache     3  2058K        3  2048,8192
         UART     4     3K        4  16,1024
          USB    36    28K       36  16,128,384,4096
       USBdev    30     4K       30  32,64,128,256
   cl_savebuf     0     0K   764286  64,128,256,384
     vfs_hash     1  1024K        1
       vnodes     1     1K        2  32,256
namei_tracker     0     0K        1  32
        mount    92     5K      169  16,32,64,128,256,1024
       statfs     0     0K  4180962  4096
     acpitask     1    64K        1  65536
      VN POLL     0     0K        4  128
  vnodemarker     3     2K   740373  512
      fadvise     0     0K       26  32
chacha20random     1     2K        1  2048
          BPF    10    18K       10  128,256,512,4096
        ifnet     3     5K        3  128,2048
       ifaddr    44    12K       45  16,32,64,128,256,384,2048,4096
  ether_multi    17     2K       22  16,32,64,128
        clone     7     1K        7  128
      lltable    12     4K      137  256,384
          tun     3     1K        3  32
         pfil     3     1K        3  128
        nhops     6     1K        6  128
     routetbl    15     4K       15  32,64,128,384,1024
         vnet     1     1K        1  128
    vnet_data     1   168K        1
vnet_data_free     1     1K        1  32
         igmp     2     1K        2  128
     in_multi     2     1K        3  256
  ip_moptions     1     1K        1  64
encap_export_host     8     1K        8  32,64
   tfo_ccache     1   128K        1
    hostcache     1    32K        1  32768
      tcpfunc     1     1K        1  64
     syncache     1    68K        1
    in6_multi    15     2K       15  32,256
 ip6_moptions     1     1K        1  32
       ip6opt     3     1K        3  256
          mld     2     1K        2  128
       ip6ndp     3     1K        3  64,256
  inpcbpolicy    12     1K    92887  32
     secasvar     1     1K        1  1024
       sahead     1     1K        1  1024
  ipsecpolicy     1     1K        1  1024
    ipsec-saq     2     2K        2  1024
       crypto     4     2K        4  64,256,1024
audit_evclass   236     8K      294  32
     ufs_trim     3    24K 55611566  64,128,384,8192
      pagedep     5   513K  1053390  256
     inodedep     8  4098K 15078978  384
    bmsafemap     4    32K  9331425  256,8192
       newblk     5  8193K 18737615  256
     indirdep     0     0K    76360  128,32768
     freefrag     0     0K  3962939  128
     freeblks     0     0K  6863824  256
     freefile     6     1K  8859174  64
       diradd     1     1K 12214801  128
        mkdir     0     0K   601490  128
       dirrem     1     1K 12205115  128
    newdirblk     0     0K   312636  64
     freework     4     1K  9032740  16,128
        sbdep     0     0K    17570  64
     savedino     0     0K   660153  256
      softdep     4     2K        4  512
  ufs_dirhash  1162   360K  4544806  16,32,64,128,256,384,512,1024
    ufs_quota     1  1024K        1
    ufs_mount    20    67K       24  32,64,512,4096,8192
    vm_pgdata     1     1K        1  128
          UMA   221     5K      221  16,32
      CAM SIM     3     1K        3  256
      CAM XPT    17     2K     1030  16,32,128,512,1024,2048,65536
      CAM DEV     4     8K       11  2048
      CAM CCB     0     0K 18832080  2048
     CAM path     5     1K       39  32
   CAM periph     4     1K     3141  16,32,64,128,256,512,32768
       DEVFS3   151    38K      378  256
       DEVFS1   114   114K      251  1024
          rpc     2    16K        2  8192
   DEVFS_RULE    59    21K       59  64,384
        DEVFS    14     1K       15  16,128
       DEVFSP     2     1K     2868  64
 msdosfs_node     0     0K      328  256
msdosfs_mount     1     1K        1  384
  msdosfs_fat     1     2K        1  2048
NFSD V4client     1     1K        1  256
 NFSD lckfile     1     1K        1  256
    GICv3 ITS    19   781K       19  16,64,256,65536
        GICv3    11    65K       11  16,64,128,65536
     nexusdev     4     1K        4  16
 undefhandler     3     1K        3  32
  fpukern_ctx     6     6K        6  1024
 armv8_crypto     2     1K        2  64,256
         intr   206  1971K      207  16,32,64,128
   kstat_data    17    17K       17  1024
      solaris   131  8461K     6447  16,32,64,128,256,1024,2048,4096,8192,65536
        taskq     2     1K        2  128,256
      solaris 224377 10479K   224418 
16,32,64,128,256,512,1024,2048,4096,8192,16384,32768,65536
          fbt 84648 10837K    84648  128
          SDT    42     2K       42  16,64
ITEM                   SIZE  LIMIT     USED     FREE      REQ     FAILSLEEP
XDOMAIN
kstack_cache:         16384,      0,     354,      43,  650871,   0,   0,   0
buffer arena-40:       4096,      0,       0,       0,       0,   0,   0,   0
buffer arena-81:       8192,      0,       0,       0,       0,   0,   0,   0
buffer arena-12:      12288,      0,       0,       0,       0,   0,   0,   0
buffer arena-16:      16384,      0,       4,      14,    1758,   1,   0,   0
buffer arena-20:      20480,      0,       0,       0,       0,   0,   0,   0
buffer arena-24:      24576,      0,       0,       0,       0,   0,   0,   0
buffer arena-28:      28672,      0,       0,       0,       0,   0,   0,   0
buffer arena-32:      32768,      0,   12920,       6, 3442658,81850,   0,   0
buffer arena-36:      36864,      0,       0,       0,       0,   0,   0,   0
buffer arena-40:      40960,      0,       0,       0,       0,   0,   0,   0
buffer arena-45:      45056,      0,       0,       0,       0,   0,   0,   0
buffer arena-49:      49152,      0,       0,       0,       0,   0,   0,   0
buffer arena-53:      53248,      0,       0,       0,       0,   0,   0,   0
buffer arena-57:      57344,      0,       0,       0,       0,   0,   0,   0
buffer arena-61:      61440,      0,       0,       0,       0,   0,   0,   0
buffer arena-65:      65536,      0,       0,       0,       0,   0,   0,   0
buf free cache:         440,      0,   13696,   11656,24282265,   0,   0,   0
vm pgcache:            4096,      0,  260852,     196,3186541989,358658,   0,  
0
vm pgcache:            4096,      0,   98719,     584,468575401,7637,   0,   0
UMA Kegs:               512,      0,     166,       2,     166,   0,   0,   0
UMA Zones:             1280,      0,     193,       0,     193,   0,   0,   0
UMA Slabs 0:             80,      0,    8440,    3108,   96159,   0,   0,   0
UMA Slabs 1:            112,      0,       8,      27,       8,   0,   0,   0
UMA Hash:               256,      0,       0,       0,       0,   0,   0,   0
2 Bucket:                32,      0,      96,    3054, 4891511,7746610,   0,  
0
4 Bucket:                48,      0,      46,    3062, 1865552,18688968,   0,  
0
8 Bucket:                80,      0,     139,    1710, 5479470,2807320,   0,  
0
16 Bucket:              144,      0,      92,     412, 8983561,33219740,   0,  
0
32 Bucket:              256,      0,    5241,    5214,16752287,1421407,   0,  
0
64 Bucket:              512,      0,    2909,    2883,120011817,20739450,   0, 
 0
128 Bucket:            1024,      0,    2270,     246, 6405349,63099,   0,   0
256 Bucket:            2048,      0,     510,      36,10894863,7106539,   0,  
0
SMR SHARED:              24,      0,       2,      13,       2,   0,   0,   0
SMR CPU:                 32,      0,       2,      13,       2,   0,   0,   0
vmem:                  1920,      0,       1,       1,       1,   0,   0,   0
vmem btag:               56,      0,   24377,     448,  204947,1116,   0,   0
VM OBJECT:              264,      0,   19847,  126433,246783251,   0,   0,   0
RADIX NODE:             144,      0,   22100,   65931,566735244,   0,   0,   0
KMAP ENTRY:              96,      0,       3,      37,       3,   0,   0,   0
MAP ENTRY:               96,      0,    1041,    7065,1001540708,   0,   0,   0
VMSPACE:                408,      0,      15,     315,13987555,   0,   0,   0
fakepg:                 104,      0,       0,       0,       0,   0,   0,   0
pcpu-4:                   4,      0,       0,       0,       0,   0,   0,   0
pcpu-8:                   8,      0,    3024,    1584,    3031,   0,   0,   0
pcpu-16:                 16,      0,       8,     504,       8,   0,   0,   0
pcpu-32:                 32,      0,       0,       0,       0,   0,   0,   0
pcpu-64:                 64,      0,     374,      74,     374,   0,   0,   0
malloc-16:               16,      0,  138712,    1652, 1378721,   0,   0,   0
malloc-32:               32,      0,   67772,    1780, 2740276,   0,   0,   0
malloc-64:               64,      0,   14016,   92265,240501870,   0,   0,   0
malloc-128:             128,      0,  151496,  167432,79221482,   0,   0,   0
malloc-256:             256,      0,    1597,   82058,41905679,   0,   0,   0
malloc-384:             384,      0,     583,   98167,24183993,   0,   0,   0
malloc-512:             512,      0,     556,     212, 5072224,   0,   0,   0
malloc-1024:           1024,      0,     201,      83,53065944,   0,   0,   0
malloc-2048:           2048,      0,    1058,     106,18849226,   0,   0,   0
malloc-4096:           4096,      0,     450,      74,18848688,   0,   0,   0
malloc-8192:           8192,      0,      35,       7,    4786,   0,   0,   0
malloc-16384:         16384,      0,      84,      27, 2232786,   0,   0,   0
malloc-32768:         32768,      0,       3,      20,  212989,   0,   0,   0
malloc-65536:         65536,      0,       8,       7,   20542,   0,   0,   0
SLEEPQUEUE:              80,      0,     461,     211,     461,   0,   0,   0
kenv:                   258,      0,       0,      30,     226,   0,   0,   0
Files:                   80,      0,      71,    1179,228009937,   0,   0,   0
filedesc0:             1072,      0,      46,     115,13987633,   0,   0,   0
PWD:                     32,      0,      12,    2256, 5134040,   0,   0,   0
rl_entry:                40,      0,     267,    1147,    9130,   0,   0,   0
TURNSTILE:              136,      0,     461,     106,     461,   0,   0,   0
rangeset pctrie nodes:    144,      0,       0,       0,       0,   0,   0,   0
umtx pi:                 96,      0,       0,       0,       0,   0,   0,   0
umtx_shm:                88,      0,       0,      46,      28,   0,   0,   0
swrbuf:                2368,    128,       0,      28,   75603,   0,   0,   0
swwbuf:                2368,     64,       0,       0,   79530,   0,   0,   0
mdpbuf:                2368,     25,       0,       9,  155133,   0,   0,   0
nfspbuf:               2368,    128,       0,       0,       0,   0,   0,   0
clpbuf:                2368,    128,       0,      72,  496492,44278,   0,   0
vnpbuf:                2368,    512,       0,       0,       0,   0,   0,   0
pbuf:                  2368,     16,       0,     896,       0,   0,   0,   0
MAC labels:              40,      0,       0,       0,       0,   0,   0,   0
PROC:                  1296,      0,      45,     156,13987632,   0,   0,   0
PGRP:                    88,      0,      15,     859,  117660,   0,   0,   0
THREAD:                1384,      0,     354,     106,  650871,   0,   0,   0
cpuset:                 104,      0,      15,     109,      15,   0,   0,   0
domainset:               40,      0,       0,       0,       0,   0,   0,   0
audit_record:          1280,      0,       0,       0,       0,   0,   0,   0
mbuf_packet:            256,      0,    1025,    6014, 8424354,   0,   0,   0
mbuf:                   256, 1575715,       3,    2438, 9736597,   0,   0,   0
mbuf_cluster:          2048, 246205,    7039,      17,  126314,   0,   0,   0
mbuf_jumbo_page:       4096, 123102,       0,     114,  683611,   0,   0,   0
mbuf_jumbo_9k:         9216,  36474,       0,       0,       0,   0,   0,   0
mbuf_jumbo_16k:       16384,  20517,       0,       0,       0,   0,   0,   0
epoch_record pcpu:      384,      0,       4,       6,       4,   0,   0,   0
DEVCTL:                1024,   1000,       0,     104,     701,   0,   0,   0
ttyinq:                 160,      0,     527,     148,    2871,   0,   0,   0
ttyoutq:                256,      0,     273,     102,    1507,   0,   0,   0
g_bio:                  376,      0,       0,   55250,80963169,   0,   0,   0
cryptop:                280,      0,       0,       0,       0,   0,   0,   0
vtnet_tx_hdr:            24,      0,       0,     168,       0,   0,   0,   0
VNODE:                  488,      0,  144610,     462,49243659,   0,   0,   0
BUF TRIE:               144,      0,    1632,   24296, 8733253,   0,   0,   0
S VFS Cache:            104,      0,  159807,   11247,55225463,   0,   0,   0
STS VFS Cache:          144,      0,       0,       0,       0,   0,   0,   0
L VFS Cache:            320,      0,     978,    4314, 1053659,   0,   0,   0
LTS VFS Cache:          360,      0,       0,       0,       0,   0,   0,   0
NAMEI:                 1024,      0,       0,     128,568416882,   0,   0,   0
DIRHASH:               1024,      0,    6257,     163, 3096715,   0,   0,   0
NCLNODE:                592,      0,       0,       0,       0,   0,   0,   0
TMPFS node:             224,      0,       0,       0,       0,   0,   0,   0
pipe:                   744,      0,       3,     157, 7356360,   0,   0,   0
Mountpoints:           2816,      0,       6,       2,       6,   0,   0,   0
AIO:                    208,      0,       0,       0,       0,   0,   0,   0
AIOP:                    32,      0,       0,       0,       0,   0,   0,   0
AIOCB:                  552,      0,       0,       0,       0,   0,   0,   0
AIOLIO:                 272,      0,       0,       0,       0,   0,   0,   0
ksiginfo:               112,      0,     186,    1146, 2927796,   0,   0,   0
itimer:                 352,      0,       0,       0,     173,   0,   0,   0
KNOTE:                  160,      0,       0,     150,  394365,   0,   0,   0
socket:                 944, 126242,      23,     133,  227690,   0,   0,   0
IPsec SA lft_c:          16,      0,       0,       0,       0,   0,   0,   0
unpcb:                  256, 126242,       9,     171,  134791,   0,   0,   0
ipq:                     56,   7693,       0,       0,       0,   0,   0,   0
udp_inpcb:              496, 126242,       8,     120,   89830,   0,   0,   0
udpcb:                   32, 126242,       8,     748,   89830,   0,   0,   0
tcp_inpcb:              496, 126242,       3,      77,    3025,   0,   0,   0
tcpcb:                 1048, 126242,       3,      52,    3025,   0,   0,   0
tcptw:                   88,  25248,       0,     322,    1621,   0,   0,   0
syncache:               168,  15360,       0,      24,     387,   0,   0,   0
hostcache:               96,  15360,       1,     125,     175,   0,   0,   0
sackhole:                32,      0,       0,     252,     378,   0,   0,   0
tfo:                      4,      0,       0,       0,       0,   0,   0,   0
tfo_ccache_entries:      80,      0,       0,       0,       0,   0,   0,   0
tcpreass:                48,  15387,       0,       0,     487,   0,   0,   0
udplite_inpcb:          496, 126242,       0,       0,       0,   0,   0,   0
ripcb:                  496, 126242,       1,       7,      32,   0,   0,   0
routing nhops:          512,      0,       8,      16,      14,   0,   0,   0
rtentry:                176,      0,      11,     104,      14,   0,   0,   0
swpctrie:               144, 492436,      96,    3236,   68399,   0,   0,   0
swblk:                  136, 492420,     421,   35829,  262200,   0,   0,   0
FFS inode:              160,      0,  144578,     997,49242639,   0,   0,   0
FFS1 dinode:            128,      0,       0,       0,       0,   0,   0,   0
FFS2 dinode:            256,      0,  144578,     682,49239129,   0,   0,   0
taskq_zone:             192,      0,       0,       0,       0,   0,   0,   0
zfs_btree_leaf_cache:   4096,      0,       0,       0,       0,   0,   0,   0
metaslab_alloc_trace_cache:     72,      0,       0,       0,       0,   0,  
0,   0
ddt_cache:            24840,      0,       0,       0,       0,   0,   0,   0
ddt_entry_cache:        392,      0,       0,       0,       0,   0,   0,   0
zio_cache:             1232,      0,       0,       0,       0,   0,   0,   0
zio_link_cache:          48,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_512:       512,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1024:     1024,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1536:     1536,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_2048:     2048,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_2560:     2560,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_3072:     3072,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_3584:     3584,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_4096:     4096,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_5120:     5120,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_6144:     6144,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_7168:     7168,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_8192:     8192,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_10240:   10240,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_12288:   12288,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_14336:   14336,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_16384:   16384,      0,       0,       0,      19,   0,   0,   0
zio_buf_comb_20480:   20480,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_24576:   24576,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_28672:   28672,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_32768:   32768,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_40960:   40960,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_49152:   49152,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_57344:   57344,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_65536:   65536,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_81920:   81920,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_98304:   98304,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_114688: 114688,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_131072: 131072,      0,       0,       0,       1,   0,   0,   0
zio_buf_comb_163840: 163840,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_196608: 196608,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_229376: 229376,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_262144: 262144,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_327680: 327680,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_393216: 393216,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_458752: 458752,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_524288: 524288,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_655360: 655360,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_786432: 786432,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_917504: 917504,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1048576: 1048576,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1310720: 1310720,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1572864: 1572864,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_1835008: 1835008,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_2097152: 2097152,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_2621440: 2621440,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_3145728: 3145728,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_3670016: 3670016,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_4194304: 4194304,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_5242880: 5242880,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_6291456: 6291456,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_7340032: 7340032,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_8388608: 8388608,      0,       0,       0,       0,   0,   0,   0
zio_buf_comb_10485760: 10485760,      0,       0,       0,       0,   0,   0,  
0
zio_buf_comb_12582912: 12582912,      0,       0,       0,       0,   0,   0,  
0
zio_buf_comb_14680064: 14680064,      0,       0,       0,       0,   0,   0,  
0
zio_buf_comb_16777216: 16777216,      0,       0,       0,       0,   0,   0,  
0
abd_chunk:             4096,      0,       0,       0,       0,   0,   0,   0
sa_cache:               288,      0,       0,       0,       0,   0,   0,   0
dnode_t:                816,      0,       0,       0,       0,   0,   0,   0
arc_buf_hdr_t_full:     248,      0,       0,       0,       0,   0,   0,   0
arc_buf_hdr_t_full_crypt:    312,      0,       0,       0,       0,   0,   0, 
 0
arc_buf_hdr_t_l2only:     96,      0,       0,       0,       0,   0,   0,   0
arc_buf_t:               64,      0,       0,       0,       0,   0,   0,   0
dmu_buf_impl_t:         296,      0,       0,       0,       0,   0,   0,   0
zil_lwb_cache:          360,      0,       0,       0,       0,   0,   0,   0
zil_zcw_cache:           80,      0,       0,       0,       0,   0,   0,   0
sio_cache_0:            136,      0,       0,       0,       0,   0,   0,   0
sio_cache_1:            152,      0,       0,       0,       0,   0,   0,   0
sio_cache_2:            168,      0,       0,       0,       0,   0,   0,   0
zfs_znode_cache:        472,      0,       0,       0,       0,   0,   0,   0
dtrace_state_cache:   16384,      0,       0,       0,       0,   0,   0,   0
taskq_zone:             192,      0,       0,       0,       0,   0,   0,   0
```

After the build completes here's my process list:

```
  PID STAT         TIME  SL  RE PAGEIN   VSZ  RSS LIM TSIZ  %CPU %MEM COMMAND
    0 DLs       1:55.93   1 127      0     0  928   -    0   0.0  0.0 [kernel]
    1 ILs       0:02.49 127 127     70 11736  144   -  924   0.0  0.0 -
/sbin/init
  804 Ss        0:02.22   8 127    307 11404  544   -  708   0.0  0.0 |--
/sbin/devd
 1064 Ss        3:28.73   0 127    594 21304  848   -  540   0.0  0.0 |--
/usr/sbin/ntpd -p /var/db/ntp/ntpd.pid -c /etc/ntp.conf -f
/var/db/ntp/ntpd.drift
 1106 Is        0:00.49 127 127    250 20420  632   -  180   0.0  0.0 |--
/usr/sbin/sshd
95569 Ss        0:00.24   0 127      0 20856 8788   -  180   0.0  0.2 | `--
sshd: root@pts/0 (sshd)
95571 Ss        0:01.25   0 127      3 15748 6168   -  636   2.5  0.2 |   `--
-zsh (zsh-5.8.1)
95621 R+        0:00.01 127   0      0 13544 2768   -   20   0.0  0.1 |     `--
ps axvd
  738 Is        0:00.00 127 127      0 13020   84   -   56   0.0  0.0 |--
dhclient: system.syslog (dhclient)
  741 Is        0:00.00 127 127      0 13020   64   -   56   0.0  0.0 |--
dhclient: dwc0 [priv] (dhclient)
  803 ICs       0:00.00 127 127     12 13024  140   -   56   0.0  0.0 |--
dhclient: dwc0 (dhclient)
 1001 Ss        0:13.48   1 127    191 12752  884   -   36   0.0  0.0 |--
/usr/sbin/syslogd -s
 1114 Is        0:21.64  25 127    780 12796  320   -   28   0.0  0.0 |--
/usr/sbin/cron -m -s
 1136 Is+       0:00.00 127 127      0 12728   52   -   16   0.0  0.0 |--
/usr/libexec/getty 3wire ttyu1
 1072 Ss        6:48.83   0 127      1 12708  112   -   12   0.0  0.0 |--
/usr/sbin/powerd -a hiadaptive -n hiadaptive
  112 IWs       0:00.00 127 127      0 12608    0   -    8   0.0  0.0 `--
adjkerntz -i
    2 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 -
[crypto]
    3 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 0]
    4 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 1]
    5 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 2]
    6 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 3]
    7 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 4]
    8 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [crypto
returns 5]
    9 DL        0:00.01 127 127      0     0   48   -    0   0.0  0.0 - [cam]
   10 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [audit]
   11 RNL  255997:21.75 127 127      0     0   96   -    0 600.0  0.0 - [idle]
   12 WL      127:47.94 127 127      0     0  464   -    0   0.0  0.0 - [intr]
   13 DL        0:15.44 127 127      0     0   48   -    0   0.0  0.0 - [geom]
   14 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 -
[sequencer 00]
   15 DL        1:41.07 127 127      0     0  480   -    0   0.0  0.0 - [usb]
   16 DL        3:40.47   0 127      0     0   16   -    0   0.0  0.0 -
[rand_harvestq]
   17 DL        0:00.89   7 127      0     0   16   -    0   0.0  0.0 -
[soaiod1]
   18 DL        0:00.90  28 127      0     0   16   -    0   0.0  0.0 -
[soaiod2]
   19 DL        0:00.91   3 127      0     0   16   -    0   0.0  0.0 -
[soaiod3]
   20 DL        0:00.90  22 127      0     0   16   -    0   0.0  0.0 -
[soaiod4]
   21 DL        1:29.77   0 127      0     0   16   -    0   0.0  0.0 -
[mmcsd0: mmc/sd card]
   22 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 -
[mmcsd0boot0: mmc/sd]
   23 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 -
[mmcsd0boot1: mmc/sd]
   24 DL       13:24.41   0 127      0     0   48   -    0   0.0  0.0 -
[pagedaemon]
   25 DL        0:00.53 127 127      0     0   16   -    0   0.0  0.0 -
[vmdaemon]
   26 DL       14:14.07   0 127      0     0  112   -    0   0.0  0.0 -
[bufdaemon]
   27 DL       17:26.50   1 127      0     0   16   -    0   0.0  0.0 -
[syncer]
   28 DL        0:40.06   1 127      0     0   16   -    0   0.0  0.0 - [vnlru]
  188 DL        0:00.00 127 127      0     0   16   -    0   0.0  0.0 - [task:
mx25l flash]
 1213 DL        1:09.61 127 127      0     0  368   -    0   0.0  0.0 -
[zfskern]
 4932 DL        0:36.76 127 127      0     0   16   -    0   0.0  0.0 - [md0]
```

yet the htop reports 724MB memory used and the top reports:

```
Mem: 5476K Active, 933M Inact, 718M Wired, 208M Buf, 2353M Free
```

No ZFS pools are mounted on this host, only UFS.

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