Processes in swapped out states in recent CURRENT?

From: Garrett Cooper <yanegomi_at_gmail.com>
Date: Thu, 5 May 2011 13:33:51 -0700
    I was watching top output on my dev box and I noticed that there
are more swapped out processes present on the system, shortly after
boot (which doesn't make sense given that I'm not low on resources on
the box). Also, the os when I run os.waitpid() in python claims that
the child doesn't exist, so I'm wondering if there's an issue with the
processes reported via ps, top, etc.
    I'm noting this because it's a behavior change over my
'stable'-ish workstation, running CURRENT/r220089/amd64, which is
spec'ed out the same as the dev box, minus some multimedia hardware.
Thanks,
-Garrett

# uname -a
FreeBSD fallout.local 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r221219M: Thu
May  5 12:09:37 PDT 2011
root_at_fallout.local:/usr/obj/usr/src/sys/FALLOUT  amd6
# fstat -p 1832
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
root     sshd        1832 root /             2 drwxr-xr-x    1024  r
root     sshd        1832   wd /             2 drwxr-xr-x    1024  r
root     sshd        1832 text /usr     730118 -r-xr-xr-x  240944  r
root     sshd        1832    0 /dev          6 crw-rw-rw-    null  r
root     sshd        1832    1 /dev          6 crw-rw-rw-    null rw
root     sshd        1832    2 /dev          6 crw-rw-rw-    null rw
root     sshd        1832    3* internet stream tcp fffffe01e56cf000
root     sshd        1832    4* pseudo-terminal master      pts/1 rw
root     sshd        1832    5* local stream fffffe0008f79960 <->
fffffe0008f79a50
# fstat -p 149
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
root     adjkerntz    149 root /             2 drwxr-xr-x    1024  r
root     adjkerntz    149   wd /             2 drwxr-xr-x    1024  r
root     adjkerntz    149 text /        329805 -r-xr-xr-x    8792  r
root     adjkerntz    149    0 /dev          6 crw-rw-rw-    null rw
root     adjkerntz    149    1 /dev          6 crw-rw-rw-    null rw
root     adjkerntz    149    2 /dev          6 crw-rw-rw-    null rw
# fstat -p 1479
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
root     syslogd     1479 root /             2 drwxr-xr-x    1024  r
root     syslogd     1479   wd /             2 drwxr-xr-x    1024  r
root     syslogd     1479 text /usr     739002 -r-xr-xr-x   39008  r
root     syslogd     1479    0 /dev          6 crw-rw-rw-    null rw
root     syslogd     1479    1 /dev          6 crw-rw-rw-    null rw
root     syslogd     1479    2 /dev          6 crw-rw-rw-    null rw
root     syslogd     1479    3 /var     353301 -rw-------       4  w
root     syslogd     1479    4* local dgram fffffe0008cd31e0
root     syslogd     1479    5* local dgram fffffe0008cd30f0
root     syslogd     1479    6* internet6 dgram udp fffffe0008ced540
root     syslogd     1479    7* internet dgram udp fffffe0008ced3f0
root     syslogd     1479    8 /dev         29 crw-------    klog  r
root     syslogd     1479   10 /var     1389613 -rw-r--r--   25389  w
root     syslogd     1479   11 /var     1389579 -rw-------      62  w
root     syslogd     1479   12 /var     1389572 -rw-------   10164  w
root     syslogd     1479   13 /var     1389601 -rw-r-----    2814  w
root     syslogd     1479   14 /var     1389575 -rw-r--r--      62  w
root     syslogd     1479   15 /var     1389580 -rw-------      62  w
root     syslogd     1479   16 /var     1389577 -rw-------   57212  w
root     syslogd     1479   17 /var     1389606 -rw-------   38046  w
root     syslogd     1479   18 /var     1389578 -rw-r-----      62  w
# fstat -p 1829
USER     CMD          PID   FD MOUNT      INUM MODE         SZ|DV R/W
gcooper  sh          1829 root /             2 drwxr-xr-x    1024  r
gcooper  sh          1829   wd /usr     1884160 drwxr-xr-x    1024  r
gcooper  sh          1829 text /        212057 -r-xr-xr-x  131784  r
gcooper  sh          1829    0 /dev        127 crw--w----   pts/0 rw
gcooper  sh          1829    1 /dev        127 crw--w----   pts/0 rw
gcooper  sh          1829    2 /dev        127 crw--w----   pts/0 rw
gcooper  sh          1829   10 /dev        127 crw--w----   pts/0 rw

# python -c 'import os; os.waitpid(1825, 0)'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
OSError: [Errno 10] No child processes
# ps auxww | grep 1825
root     1825   0.0  0.0  47952      0  ??  IWs  -         0:00.00
sshd: gcooper [priv] (sshd)
root    88213   0.0  0.0  16340   1356   3  S+    1:25PM   0:00.00 grep 1825
# top -b
last pid: 96740;  load averages:  1.07,  0.98,  0.92  up 0+01:15:32    13:27:04
50 processes:  2 running, 48 sleeping

Mem: 56M Active, 23M Inact, 795M Wired, 1848K Cache, 1237M Buf, 11G Free
Swap: 24G Total, 832K Used, 24G Free


  PID USERNAME  THR PRI NICE   SIZE    RES STATE   C   TIME   WCPU
COMMAND
 1828 gcooper     1  20    0 47952K  3372K select  6   0:02  0.00% sshd
26295 root        1  20    0  9972K   888K kqread  2   0:01  0.00% tail
95888 root        1  52    0 14472K  8092K wait    1   0:00  0.00% make
 1729 root        1  20    0 20368K  3000K select  2   0:00  0.00% sendmail
59474 gcooper     1  20    0 47952K  3768K select  7   0:00  0.00% sshd
57339 root        1  52    0  6280K  1168K wait    1   0:00  0.00% make
75210 gcooper     1  20    0 47952K  3816K select  5   0:00  0.00% sshd
82431 root        1  52    0  6280K  1148K wait    2   0:00  0.00% make
94797 root        1  52    0  6280K  1164K wait    2   0:00  0.00% make
59441 root        1  21    0 47952K  3772K sbwait  4   0:00  0.00% sshd
 1825 root        1  21    0 47952K     0K sbwait  1   0:00  0.00% <sshd>
75167 root        1  21    0 47952K  3820K sbwait  1   0:00  0.00% sshd
 1832 root        1  20    0 47952K     0K sbwait  1   0:00  0.00% <sshd>
96738 root        1  72    0 17184K  9756K CPU0    0   0:00  0.00% cc1
 1479 root        1  20    0 12228K  1372K select  4   0:00  0.00% syslogd
75237 root        1  20    0 17612K  2424K ttyin   4   0:00  0.00% bash
 1835 gcooper     1  20    0 47952K  3284K select  2   0:00  0.00% sshd
57233 root        1  52    0  6280K   756K wait    2   0:00  0.00% make
Received on Thu May 05 2011 - 18:33:52 UTC

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