[ale] Fedora 1 kernel upgrade

[Bjorn Dittmer-Roche]

On Fri, 7 May 2004, James P. Kinney III wrote:

> On Fri, 2004-05-07 at 09:22, Michael H. Warfield wrote:
> > On Fri, May 07, 2004 at 08:59:34AM -0400, Chris Fowler wrote:
> > > Has anyone here tried to upgrade the kernel on Fedora 1 with a stock one
> > > from kernel.org?
> >
> > > I am trying to use 2.4.26 and I believe that they have done something to
> > > the threading in the Fedora kernel.  when I reboot on the new kernel all
> > > processes that normally would execute under one PID with threads like
> > > mysql now have many PIDs.  Not only that but my Apache that I compiled
> > > under the Fedora kernel will not run.  It keeps dying for no apparent
> > > reason.
> >
> > > Any clues?
> >
> > 	There was a discussion on another list about threading and the
> > kernel name.  Something about if the kernel name ends in .nptl then
> > it operates in a different mode with regards to threading.  Some sort
> > of RedHat specific magic cookie in the name, I guess.
> >
> > 	I haven't tried to run a stock kernel on Fedora Core 1 or 2
> > at this time.  I'll see if I can find where that thread was being
> > discussed.  That's the only clues I've got on this one.  :-/
>
> I "think" I read somewhere that the -npt1 is for "native posix threads
> version 1". Apparently there is a lot of stuff that is just incompatible
> with the posix threads in the 2.6+ kernel. All of it will have to be
> compiled under a 2.6 kernel after being corrected to support the pid
> scheme under the new posix threading.

I am a bit confused. Do you mean that binaries have to be recompiled to
run under 2.6? I have built posix threaded binaries on 2.4 and they run
just fine on 2.6 and 2.4+nptl, and, I believe, vice versa. 2.6 has nptl
"built in".

	bjorn