[CentOS] centos + kswapd0 error

mbeltran at americatel.com.sv mbeltran at americatel.com.sv
Fri May 13 19:50:01 UTC 2005



-----Mensaje original-----
De: centos-bounces at centos.org [mailto:centos-bounces at centos.org]En
nombre de Ash Christopher
Enviado el: Friday, May 13, 2005 1:35 PM
Para: CentOS mailing list
Asunto: RE: [CentOS] centos + kswapd0 error




-----Original Message-----
From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On
Behalf Of Johnny Hughes
Sent: Friday, May 13, 2005 1:04 PM
To: CentOS ML
Subject: RE: [CentOS] centos + kswapd0 error

On Fri, 2005-05-13 at 12:45 -0600, mbeltran at americatel.com.sv 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)
> 
> Hi Mr. Hughes
> 
> The kernel version 2.6.9-6.37.EL has known issues

>That is the only other one I have for EL4 (other than the released
>kernels).

>Maybe the 2.6.9-10.EL then ... but that is pretty new ... he just made
>it yesterday :)

Hi again Mr Hughes

So sorry but i forgot the question mark :S

I really want to know if this kernel has known issues (The kernel version
2.6.9-6.37.EL has known issues?)

regards
Mario



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