[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620)

Hi Jason,

On Sun, 4 Feb 2018, Jason Duerstock wrote:

Does the kernel from here work for you?:


Specifically https://people.debian.org/~jrtc27/wheezy-backports-ia64/linux-image-3.16.0-0.bpo.4-mckinley_3.16.39-1+deb8u1~bpo70+1+gcc4.4_ia64.deb

Yes, it works for our machine. Thanks!

It's amazing that you came to the same solution as regards the use of gcc-4.4 a while ago! If we could find it before, it'd have saved us some experiments. (The lack of a working installaton image which is easy to find was also discouraging at the first stage.)

On Sun, Feb 4, 2018 at 7:56 PM, Ivan Zakharyaschev <imz@altlinux.org> wrote:

As for gathering information, I can't think of some useful information
from a working system so far. The same applies to testing. We are able to
test it here. Anyway, thanks for your messages, Frank and Daniel! The
remaining useful tasks which I see are:

1) learn how to compile a bootable kernel for this machine and apply this
knowledge to compile a fresh current kernel;

2) understand what goes wrong (by bisecting gcc), suggest a fix. (Before
we understand it, we can't be sure what should be fixed: it's not
necessarily abug in gcc).

So far, we've done a number of attempts to compile and boot a kernel (I'm
going to post the details and the kernels soon), and my conclusion so far is
that the only affecting factor is the version of gcc (even not -O1 vs

gcc <= 4.5.3 produces a bootable kernel (as for
linux-image-3.2.0-4-mckinley, gcc 4.4.7 from wheezy and gcc 4.5.3 from
snapshots produced a bootable one in my experiments);
gcc > = 4.6.3 produces a non-bootable kernel.

So this already gives an initial hypothesis about the solution to 1):

To compile a bootable kernel for this machine, use gcc <= 4.5.3.

Reply to: