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From: Mike Savage (Mike.Savage_at_datastream.net)
Date: Wed 26 Mar 2003 - 21:07:34 GMT

I too would greatly appreciate a RedHat AS 2.1 vserver patch...I would
attempt to do it myself, but I am not a proficient kernel programmer.

The 2.4.9 kernel that is supplied with RedHat AS 2.1 is far from a vanilla
kernel. In particular it, includes the 2.4.9-ac10 patch, as well as
backports of various subsystem components from kernel versions up to 2.4.18.
This kernel also includes substantial internal reworkings, including async
io support, among other things.

RedHat has released an updated kernel SRPM for RedHat AS 2.1. It can be
found here:

Using rpm2cpio and then cpio, one can crack open the SRPM and take a look at
the code and patches for the latest RedHat AS 2.1 kernel. This kernel would
would probably be a better candidate for any potential vserver patches, were
anyone to undertake this endeavor. It appears that RedHat has started with
a vanilla 2.4.18 kernel and then applies the 2.4.19-pre10-ac2 patch before
including various other subsystem patches.

My reason for wanting a RedHat AS kernel is that my company uses Oracle
products that require RedHat AS 2.1. I have SCSI arrays with hundreds of
GBs of space...but I have limited physical machines. It would be great to
use vserver to partition up different machines into separate vservers for
different Oracle products. Also, some products I also use, ie. JBoss 2.4.x,
have no way to bind to a single IP address. Thus, I can not run multiple
installations of JBoss 2.4.x on a single server without using vserver to
compartmentalize my physical server into separate JBoss vserver containers.

I started a similar thread a while back, however, I got no takers on trying
to get anywhere with achieving a vserver patch for RedHat AS 2.1. Any
takers this go around? If I can assist anyone in this goal, please let me
know. I am not a hardcore C/kernel programmer, but I am willing to assist
in any way I can.


-----Original Message-----
From: Herbert Poetzl [mailto:herbert_at_13thfloor.at]
Sent: Saturday, March 22, 2003 2:07 PM
To: vserver_at_solucorp.qc.ca
Subject: Re: [vserver] RHAS2.1 With vserver

On Sat, Mar 22, 2003 at 07:25:01PM +0100, Bobby wrote:
> The reason kernel changes cannot be made, is due to support issues, and as
> management has requested these kernels not be touched, I have my view on
> this issue but thats another story :^)..
> The main goal of using vserver, is to set up 2 instances, of an
> server in a controlled state, trying clustering etc. The other would be to
> set up development environments, without having to use real system
> and resources etc.

you would always use real (system) resources ...

> If anyone is willing to make a patch for the RHAS2.1 kernels please do so
> :^)

this would not help you, because it would require
to change the kernel too ... *G*

(get rid of the management or provide better reasoning ;)


> ----- Original Message -----
> From: "Herbert Poetzl" <herbert_at_13thfloor.at>
> To: <vserver_at_solucorp.qc.ca>
> Sent: Saturday, March 22, 2003 2:08 PM
> Subject: Re: [vserver] RHAS2.1 With vserver
> > On Sat, Mar 22, 2003 at 01:41:03PM +0100, Bobby wrote:
> > > Hello all,
> > > Im trying to set up vserver on RedHat Advanced Server 2.1, problem
> is
> > > that I cannot upgrade the kernel.
> >
> > - why is that so?
> > - what is the problem with upgrading the kernel?
> >
> > > Thus im stuck with the kernel version that
> > > comes out with this system, (2.4.9-XX). Has anyone tried to use
> with
> > > RHAS2.1, or does anyone know if there is any patches for this kernel.
> >
> > I do not know any reasonable advanced patch for
> > this kernel version (2.4.9 is one and a half year ago)
> >
> > > I Would really like to try this out on our enterprise servers and
> > > applications.
> >
> > what benefit do you expect for your 'applications'?
> >
> > best,
> > Herbert
> >
> > > Thanks in advance,
> > > Rob
> > >
> >

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