[LITMUS^RT] LITMUS^RT on v4.9: call for testing

[Namhoon Kim]

Hi,

We will compile and test the wip-port branch on our Freescale IMX6 platform
(ARM arch). I will report the results in a few days.

Thanks,

Namhoon

On Mon, Feb 27, 2017 at 6:05 PM, Björn Brandenburg <bbb at mpi-sws.org> wrote:

> Dear LITMUS^RT community,
>
> I’ve prepared an initial port of LITMUS^RT to Linux 4.9.13. It compiles
> and runs on my x86 box, and even survives light testing. Let’s make this
> the next release. Obviously, more testing and cleanup is required. Thus:
>
>                  ******** Please help out with testing! ********
>
> The port is in the wip-port branch on Github:
>
>         https://github.com/LITMUS-RT/litmus-rt/commits/wip-port
>
> Please give it a try.
>
> Some details on what I’ve done:
>
> First, I squashed the history of the current master branch, the result of
> which you can find in the sip-squashed branch:
>
>         https://github.com/LITMUS-RT/litmus-rt/commits/wip-squashed
>
> This branch is identical to the current master branch, modulo the
> simplified history.
>
> Next, I’ve rebased wip-squashed on top of Linux 4.9.13. Some notes:
>
> - the hrtimer API has changed; this required some adjustments.
>
> - I’ve dropped the SRP ceiling blocking hook. This legacy implementation
> was no longer working right and causing too many problem. SRP support will
> have to be re-implemented (if anyone still cares).
>
> - There were many merge conflicts due to regular kernel churn. Most of
> them I could resolve in ways that seem like they ought to work, but only
> heavy workloads will show if the kernel holds up.
>
>                  ******** What to do ********
>
> - Download, compile, and run the version in the wip-port branch.
>
> - Run on the machines that you usually use for your research and tests.
>
> - Run with both debug and benchmarking configs.
>
> - If you use non-x86 hardware, see if the kernel still compiles for your
> favorite platform.
>
> - Run your usual benchmarks / workloads.
>
> - Report any crashes / warnings / performance regressions / anything else
> surprising.
>
> - Ideally, submit patches to fix both minor and major breakage.
>
> Note: you’ll need the latest liblitmus to work with this kernel.
>
> I know testing is not the most fun activity on the planet, but if you want
> to have a stable base system for your next project, now is the time to chip
> in and help out the project. The plan is to make 4.9 the base version for
> at least the next two years, so any effort invested now is going to pay off
> for some time to come.
>
> Thanks,
> Björn
>
>
>
>
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> litmus-dev at lists.litmus-rt.org
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>
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