Re: Use SMP kernel for Alpha (udeb) builds

On Sun, Dec 09, 2018 at 08:21:11AM +1300, Michael Cree wrote:
> On Sun, Dec 09, 2018 at 07:54:52AM +1300, Michael Cree wrote:
> > On Sat, Dec 08, 2018 at 12:01:23PM +1300, Michael Cree wrote:
> > > On Fri, Dec 07, 2018 at 10:39:58PM +0100, Frank Scheiner wrote:
> > > > On 12/7/18 22:06, Michael Cree wrote:
> > > > > On Tue, Dec 04, 2018 at 05:38:51PM +0100, Frank Scheiner wrote:
> > > > > > As per [1] and our recent discussions the generic 4.x kernels seem to no
> > > > > > longer work on Alpha machines which also renders any installer images using
> > > > > > the generic 4.x kernels non-working.
> > 
> > Bisection leads to:
> > 
> > dca496451bddea9aa87b7510dc2eb413d1a19dfd is the first bad commit
> 
> Actually I am not so sure about that.  It appears that sometimes a
> bad kernel can boot which might have lead me astray.  That commit
> after failing once (assuming I did not make a mistake in the
> bisection) is now booting...

It would appear that I accidently marked one step in the
bisection incorrectly but I have now identified the problem
commit and it makes a lot more sense.  The first bad commit is

commit b38d08f3181c5025a7ce84646494cc4748492a3b
Author: Tejun Heo <[email protected]>
Date:   Tue Sep 2 14:46:02 2014 -0400

    percpu: restructure locking


The commit prior to that one boots reliably but this one fails to
boot a generic kernel.  I'll report it to the linux kernel mail
list.

Cheers,
Michael.