kernel 4.9.39

kernel 4.9.39

[Brian Wrenn]

Hi,

my project is currently running 4.4.9 with the PREEMPT-RT patch.  We
may need to upgrader our kernel.  We're constrained by the vendor of
our SOM in what kernels we can use, and at this time and the
foreseeable future, we only can use 4.9.34 or 4.9.39.  I looked on the
PREEMPT-RT site's list of patches, but I don't see one for either of
those versions.  Just for the sake of trying, I attempted to patch
4.9.39 with 4.9.40-rt30, but to no surprise that failed.

Do I have any other options?  Does a non-published PREEMPT-RT patch
that would successfully patch 4.9.39 exist somewhere I haven't looked?

Thank you for any help,
Brian

Re: kernel 4.9.39

[Alexander Dahl]

Hei hei,

Am Dienstag, 19. September 2017, 23:13:56 CEST schrieb Brian Wrenn:
> foreseeable future, we only can use 4.9.34 or 4.9.39.  I looked on the
> PREEMPT-RT site's list of patches, but I don't see one for either of
> those versions.  Just for the sake of trying, I attempted to patch
> 4.9.39 with 4.9.40-rt30, but to no surprise that failed.
> 
> Do I have any other options?  Does a non-published PREEMPT-RT patch
> that would successfully patch 4.9.39 exist somewhere I haven't looked?

In Git I see tags for those version in the linux-rt-devel tree:

v4.9.30-rt21-rebase
v4.9.33-rt23-rebase

And those in the linux-stable-rt tree:

v4.9.35-rt25-rebase

And there are even non-rebased tags for 4.9.34 and 4.9.39, maybe you can 
export a working patch stack just from Git?

Greets
Alex