[RFC] Drop Non-smp PowerPC Kernel Flavor

Colin Watson cjwatson at ubuntu.com
Thu Mar 15 12:02:06 UTC 2012

On Thu, Mar 15, 2012 at 11:02:09AM +0800, Jeremy Kerr wrote:
> Hi all,
> >We consulted Jeremy Kerr about this. He says that an SMP kernel will run
> >on all 32 bit powerpc platforms, including non-SMP.
> To clarify: the hardware supported by the powerpc and powerpc-smp
> flavours is almost identical. The differences probably don't matter
> Ubuntu users, as it'll be obscure hardware. I've CC-ed benh in case
> he wants to correct me on this one.
> However, the SMP kernel supports (surprise!) bringing up >1 CPU on
> machines that have >1 CPU. With a UP kernel on these machines, the
> other CPUs are left doing nothing.
> The main class of 32-bit SMP powerpc machines are the Apple dual-G4s.
> So, since the hardware coverage is essentially the same, but we get
> SMP support on SMP machines, I'd say that we would prefer the
> powerpc-smp kernel over the powerpc flavour.

OK, that all makes sense, and I agree based on that.  I'd forgotten
about the dual G4 class.

I would switch the installer over to powerpc-smp today, then, except
that the kernel doesn't ship powerpc-smp udebs yet, only powerpc and
powerpc64-smp.  Can somebody fix that so that I can do this transition?

Colin Watson                                       [cjwatson at ubuntu.com]

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