Re: Kernel ABI bump in stretch

[Cyril Brulebois]

Julien Cristau  (2017-09-03):
> This should be fine.  We don't ship any pre-built modules in stretch
> outside the linux source package, so the only other thing we need to
> do is update d-i at that point release.

Need for an ABI bump noted on the d-i side, thanks for the heads-up.


KiBi.


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Re: Kernel ABI bump in stretch

[Ben Hutchings]

On Sun, 2017-09-03 at 18:51 +0200, Julien Cristau wrote:
> On Sun, Sep  3, 2017 at 01:45:48 +0100, Ben Hutchings wrote:
> 
> > There are several changes in the 4.9-stable branch which I don't think
> > we can take without changes to the kernel module ABI that will affect
> > out-of-tree modules.  This would mean an ABI bump, changing the names
> > of all linux-image and linux-headers packages.
> > 
> > Since we install meta-packages (such as linux-image-amd64) by default,
> > an 'apt full-upgrade' should result in installing the appropriate new
> > packages.  However, we have been able to avoid such an ABI bump in the
> > past 3 releases (so far) and this might come as a surprise to users.  I
> > think the point release announcement would need to draw attention to
> > this.
> > 
> > If this is totally unacceptable, I can revert the breaking changes, but
> > some of them fix use-after-free bugs that probably have security
> > impact.
> > 
> > Please let us know as soon as possible whether an ABI bump is OK, so
> > that we can prepare the update in time for the next point release.
> > 
> 
> This should be fine.  We don't ship any pre-built modules in stretch
> outside the linux source package, so the only other thing we need to do
> is update d-i at that point release.

Thanks.

Ben.

-- 
Ben Hutchings
Time is nature's way of making sure that everything doesn't happen at
once.



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Re: Kernel ABI bump in stretch

[Julien Cristau]

On Sun, Sep  3, 2017 at 01:45:48 +0100, Ben Hutchings wrote:

> There are several changes in the 4.9-stable branch which I don't think
> we can take without changes to the kernel module ABI that will affect
> out-of-tree modules.  This would mean an ABI bump, changing the names
> of all linux-image and linux-headers packages.
> 
> Since we install meta-packages (such as linux-image-amd64) by default,
> an 'apt full-upgrade' should result in installing the appropriate new
> packages.  However, we have been able to avoid such an ABI bump in the
> past 3 releases (so far) and this might come as a surprise to users.  I
> think the point release announcement would need to draw attention to
> this.
> 
> If this is totally unacceptable, I can revert the breaking changes, but
> some of them fix use-after-free bugs that probably have security
> impact.
> 
> Please let us know as soon as possible whether an ABI bump is OK, so
> that we can prepare the update in time for the next point release.
> 
This should be fine.  We don't ship any pre-built modules in stretch
outside the linux source package, so the only other thing we need to do
is update d-i at that point release.

Cheers,
Julien


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