Hi all
I have a box with Centos 4 and qmail with all pathches. since Last month i
have had twice the same problem. The process kswapd0 uses all my resources
of CPU and RAM memory and the consequence is that my local queue grow up and
the box go slow too.
The first time i guess the problem was the version of the kernel, so i did
an upgrade form kernel.i686 2.6.9-5.0.3.EL to kernel.i686 2.6.9-5.0.5.EL
apparently the problem was solved but today the problem came again. The
following snapshot shows the situation:
top - 10:53:48 up 16 days, 20:05, 1 user, load average: 119.27, 116.16,
114.33
Tasks: 528 total, 13 running, 515 sleeping, 0 stopped, 0 zombie
Cpu(s): 5.4% us, 89.4% sy, 0.0% ni, 0.3% id, 4.8% wa, 0.0% hi, 0.1% si
Mem: 2075012k total, 2073404k used, 1608k free, 71056k buffers
Swap: 4192924k total, 4192924k used, 0k free, 36380k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
60 root 17 0 0 0 0 D 75.4 0.0 585:22.79 kswapd0
2164 root 15 0 1736 484 432 S 31.0 0.0 31:57.07 couriertcpd
16334 vpopmail 19 0 2660 804 668 R 24.7 0.0 0:01.69 imapd
2158 root 15 0 3264 488 432 S 23.4 0.0 1:17.51 couriertcpd
32608 apache 16 0 21604 8440 3016 R 15.5 0.4 1:38.09 httpd
15284 vpopmail 18 0 4384 1032 760 R 14.9 0.0 0:08.32
vdelivermail
I really do not know what thing should i do for solve this problem
thanks in advance
Mario
