netdev - Re: wireguard ci hooked up to quite a few kernel trees

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Date:   Wed, 29 Jan 2020 17:53:01 +0530
From:   Bhaskar Chowdhury <unixbhaskar@...il.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>
Cc:     WireGuard mailing list <wireguard@...ts.zx2c4.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: wireguard ci hooked up to quite a few kernel trees

Looks bloody good Jason! thanks, man!

~Bhaskar

On 13:15 Wed 29 Jan 2020, Jason A. Donenfeld wrote:
>Hi all,
>
>With the merging of wireguard, I've hooked the project's CI up to
>quite a few trees. We now have:
>
>- net-next
>- net
>- linux-next
>- linux (Linus' tree)
>- wireguard-linux (my tree)
>- wireguard-linux-compat (backports to kernels 3.10 - 5.5)
>
>When the various pushes and pulls click a few more cranks through the
>machinery, I'll probably add crypto and cryptodev, and eventually
>Greg's stable trees. If anybody has suggestions on other relevant
>trees that might help catch bugs as early as possible, I'm all ears.
>
>Right now builds are kicked off for every single commit made to each
>one of these trees, on x86_64, i686, aarch64, aarch64_be, arm, armeb,
>mips64, mips64el, mips, mipsel, powerpc64le, powerpc, and m68k. For
>each of these, a fresh kernel and miniature userland containing the
>test suite is built from source, and then booted in qemu.
>
>Even though the CI at the moment is focused on the wireguard test
>suite, it has a habit of finding lots of bugs and regressions in other
>weird places. For example, linux-next is failing at the moment on a
>few archs.
>
>I run this locally every day all day while developing kernel things
>too. It's one command to test a full kernel for whatever thing I'm
>working on, and this winds up saving a lot of time in development and
>lets me debug things with printk in the dumbest ways possible while
>still being productive and efficient.
>
>You can view the current build status here:
>https://www.wireguard.com/build-status/
>
>This sort of CI is another take on the kernel CI problem; I know a few
>organizations are doing similar things. I'd be happy to eventually
>expand this into something more general, should there be sufficient
>interest -- probably initially on networking stuff -- or it might turn
>out that this simply inspires something else that is more general and
>robust, which is fine too. Either way, here's my contribution to the
>modicum of kernel CI things happening.
>
>Regards,
>Jason

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