@related: [[Memory]] [[kswapd0]]

The kernel page fault swap daemon.

kswapd0 takes 100% (and more) until the system collapse

  $ dmesg | grep -i swap
  Adding 995988k swap on /dev/hda1.  Priority:-1 extents:1 across:995988k
  $ while [ 1 ] ; do free -m ; sleep 3 ; done                                                           
               total       used       free     shared    buffers     cached
  Mem:           471        459         11          0         11        229
  -/+ buffers/cache:        218        252
  Swap:          972          0        972
  $ ps efaux | grep -i swap
  root       160  0.0  0.0      0     0 ?        S<   10:32   0:01  \_ [kswapd0]
  $ fdisk  -l /dev/hda | grep swap
  /dev/hda1               1         124      995998+  82  Linux swap / Solaris
  /dev/hda7            2309        2432      995998+  82  Linux swap / Solaris
  $ mkswap -c /dev/hda1
  $ mkswap -c /dev/hda7
  $ vmstat 1
  procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
   r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
   5  1     24   7436  65844 180040    0    0   298   155 1087 3162 26  5 53 16
   2  1     24   6956  66380 180040    0    0   536     0 1123 3307 25  6  0 69


  * http://forum.ubuntu-fr.org/viewtopic.php?pid=1126472#p1126472
  * http://www.linuxquestions.org/questions/showthread.php?t=374367
  * http://www.ussg.iu.edu/hypermail/linux/kernel/0706.1/2536.html

I have also checked for [[Rootkit]]