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Next CIP kernel: CIP - Debian alignment

cip-dev Agustin Benito Bethencourt 2 participants 2 messages Nov 7, 2017

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Hi Ben,

one of the recurrent questions at ELCE, that also was done at the TSC meeting is when will we pick the following kernel. The following variables apply to this decision:

* Some time ago, you made clear that, in order to keep the maintenance effort affordable, we should not pick kernels in tight cadence. TSC agreed to assume that advice.

* Since we have agreed to base CIP-Core in Debian sources and during ELCE 2017 we picked Debian as the default distro for CIP, it seems a natural choice to pick LTS kernels that are also selected by Debian as preferred choice.

Based on your understanding about the Debian project:

- When do you expect the next Debian kernel to be selected?
- Based on that answer, which ones are the best candidates?
- Do you expect LTS and Debian selection to be aligned?
- If not, if this something you would like to see happening?
- If yes, how can CIP help to make it happen?

Best Regards

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Agustin Benito Bethencourt
Principal Consultant - FOSS at Codethink
agustin.benito at codethink.co.uk
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Quoted 10 lines · Agustin Benito Bethencourt

Hi Ben,

one of the recurrent questions at ELCE, that also was done at the TSC? meeting is when will we pick the following kernel. The following? variables apply to this decision:

* Some time ago, you made clear that, in order to keep the maintenance? effort affordable, we should not pick kernels in tight cadence. TSC? agreed to assume that advice.

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* Since we have agreed to base CIP-Core in Debian sources and during? ELCE 2017 we picked Debian as the default distro for CIP, it seems a? natural choice to pick LTS kernels that are also selected by Debian as? preferred choice.

Based on your understanding about the Debian project:

- When do you expect the next Debian kernel to be selected?

I take it that you mean the kernel for the next Debian stable release (10/buster).

Debian is aiming to release roughly every 2 years. The last freeze was delayed at my request, to allow inclusion of the LTS kernel selected at the end of 2016, which was 4.9. So I would expect that the next Debian release will include the LTS kernel selected at the end of 2018.

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- Based on that answer, which ones are the best candidates?

The kernel release cycle is 9-10 weeks, so I would expect the 2018 LTS kernel to be 4.19 or 4.20/5.0. (I think I heard Linus say 4.19 will be followed by 5.0, the same way 3.19 was followed by 4.0.)

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- Do you expect LTS and Debian selection to be aligned?

Absolutely.

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- If not, if this something you would like to see happening?
- If yes, how can CIP help to make it happen?

I don't think CIP needs to do anything to encourage this.

Ben.

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Ben Hutchings
Software Developer, Codethink Ltd.