RedHat releasing hybred 24/26 kernels

I hope this question is appropriate for this group, forgive me if it is not.

Per RedHat, link http://www.redhat.com/software/rhel/kernel26/, their
Enterprise product line is a hybrid kernel, with the strength of a
"stable" 2.4 kernel (2.4.21) yet the advances released in the 2.6 kernel.

Does this sound kosher? Does any have issues or concerns with this
approach? Can any one provide information (links) to either support
this approach, or recommend against creating hybrid kernels?

Thanks in advance.
Joseph


Joseph Dionne

Joseph Dionne wrote:
> I hope this question is appropriate for this group, forgive me if it
is not.
>
> Per RedHat, link http://www.redhat.com/software/rhel/kernel26/, their

> Enterprise product line is a hybrid kernel, with the strength of a
> "stable" 2.4 kernel (2.4.21) yet the advances released in the 2.6
kernel.
>
> Does this sound kosher? Does any have issues or concerns with this
> approach? Can any one provide information (links) to either support
> this approach, or recommend against creating hybrid kernels?
>
> Thanks in advance.
> Joseph

RH has been doing this sort of thing for years.

In this particular case, many of the things listed as "in 2.6 kernel"
are also available in 2.4.x kernels. Included in list because of code
tweaking? New code components? Make the sales pitch list look longer?
All? Take your pick ;-)

Look closely at the "reasons" for inclusion. Most relate to heavy use
of I/O, threads, smp, large memory, etc. Ie., the kind of
setup/hardware enterprises often run for _big_ db applications -- heard
of RH's "partner" Oracle? It's the resource monster from Hell ;-)

Considering their success with the product, I would say their customers
like it well enough.

hth,
prg
email above disabled
Sorry to clip the ng list -- google doesn't like some.

[ Followup-To aol ]

In alt.os.linux Joseph Dionne <(E-Mail Removed)>:
> I hope this question is appropriate for this group, forgive me if it is not.

> Per RedHat, link http://www.redhat.com/software/rhel/kernel26/, their
> Enterprise product line is a hybrid kernel, with the strength of a
> "stable" 2.4 kernel (2.4.21) yet the advances released in the 2.6 kernel.

> Does this sound kosher? Does any have issues or concerns with this

What shouldn't be "kosher" about it, they back ported some
features of 2.6 to 2.4, you should download the src.rpm
(updates.redhat.com) and take a look if you are curious.

> approach? Can any one provide information (links) to either support
> this approach, or recommend against creating hybrid kernels?

Works quite well, even under extreme load. Why should there be
any information supporting or not this approach. "Hybrid" is IMHO
just marketing babel.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 144: Too few computrons available.