kernelci / kernelci-core

Core KernelCI tools
https://kernelci.org
GNU Lesser General Public License v2.1
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Add branch linus-next from linus-next #2686

Closed sashalevin closed 1 month ago

sashalevin commented 2 months ago

Each git kernel branch is monitored every hour by kernelci.org. Whenever a new revision is detected, it will be built for a number of combinations of architectures, defconfigs and compilers. Then a build report will be sent, some tests will be run and test reports will also be sent.

Please provide the information described below in order to add a new branch to kernelci.org:

⇨ Git repo URL: git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linus-next.git

⇨ Git branch name: linus-next

Generally speaking, a good rule is to build fewer variants for branches that are "further" away from mainline and closer to individual developers. This can be fine-tuned with arbitrary filters, but essentially there are 3 main options:

  1. Build everything, including allmodconfig, which amounts to about 220 builds. This is we do with linux-next.

  2. Skip a few things such as allmodconfig as it's very long to build and doesn't really boot, and also architectures that are less useful such as MIPS which saves 80 builds and doesn't have many test platforms in KernelCI. This is we do with some subsystems such as linux-media.

  3. Build only the main defconfig for each architecture to save a lot of build power, get the fastest results and highest boots/builds ratio. This is what do with some maintainer branches such as linusw' GPIO branch.

⇨ Build coverage choice: (1): this branch will be used similarly to linux-next.

If you push once a week or less, it's easier to allow for many build variants as this reduces the build load on average. Conversely, if you push several times every day then a small set of builds should be used.

It's also possible to increase the build capacity if needed but this comes with a cost. Avoiding unnecessary builds is always a good way to reduce turnaround time and not waste resources.

⇨ Estimated frequency: ~ once a day

Standard email reports inlude builds and basic tests that are run on all platforms. Please provide a list of email recipients for these. Typical ones are the regular KernelCI reports list, kernel mailing lists associated with the changes going into the branch and related maintainers.

⇨ Recipients: sashal@kernel.org