centos + kswapd0 error

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On Fri, 2005-05-13 at 11:38 -0600, mbeltran@xxxxxxxxxxxxxxxxx wrote:
> 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

I think this bug is your problem:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=150971

You can try the kernel at:

http://people.redhat.com/davej/kernels/RHEL4/RPMS.kernel/

(or I can give you version 2.6.9-6.37.EL that is in 4Update1 beta)
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