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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: bpf <bpf@vger.kernel.org>, dwarves@vger.kernel.org, siudin@fb.com
Subject: Re: latest pahole breaks libbpf CI and let's talk about staging
Date: Wed, 16 Jun 2021 10:40:45 -0700	[thread overview]
Message-ID: <CAEf4BzZ7KDcsViCY8MbUZuWu2BdkjymkgJtyVUMBrCaiimUCxQ@mail.gmail.com> (raw)
In-Reply-To: <YMoRBvTdD0qzjYf4@kernel.org>

On Wed, Jun 16, 2021 at 7:56 AM Arnaldo Carvalho de Melo
<arnaldo.melo@gmail.com> wrote:
> Em Tue, Jun 15, 2021 at 04:30:03PM -0700, Andrii Nakryiko escreveu:
> > Hey Arnaldo,
> >
> > Seems like de3a7f912559 ("btf_encoder: Reduce the size of encode_cu()
> > by moving function encoding to separate method") break two selftests
> > in libbpf CI (see [0]). Please take a look. I suspect some bad BTF,
> > because both tests rely on kernel BTF info.
> >
> > You've previously asked about staging pahole changes. Did you make up
> > your mind about branch names and the process overall? Seems like a
> > good chance to bring this up ;-P
> >
> >   [0] https://travis-ci.com/github/libbpf/libbpf/jobs/514329152
> Ok, please add tmp.master as the staging branch, I'll move things to
> master only after it passing thru CI.

So I'm thinking about what's the best setup to catch pahole staging
problems, but not break main libbpf CI and kernel-patches CI flows.

How about we keep all the existing CI jobs to use pahole's master.
Then add a separate job to do full kernel build with pahole built from
staging branch. And mark it as non-critical (or whatever the
terminology), so it doesn't mark the build red. I'd do that as a cron
job that runs every day. That way if you don't have anything urgent,
next day you'll get staging tested automatically. If you need to test
right now, there is a way to re-trigger previous build and it will
re-fetch latest staging (so there is a way for you to proactively

Basically, I want broken staging pahole to not interrupt anything we
are doing. WDYT?

> Now looking at that code, must be something subtle...
> - Arnaldo

  parent reply	other threads:[~2021-06-16 17:40 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-15 23:30 Andrii Nakryiko
2021-06-16 14:56 ` Arnaldo Carvalho de Melo
2021-06-16 16:40   ` Arnaldo Carvalho de Melo
2021-06-16 20:41     ` Arnaldo Carvalho de Melo
2021-06-16 22:36       ` Andrii Nakryiko
2021-06-17 14:48         ` Arnaldo Carvalho de Melo
2021-06-17 19:53           ` Arnaldo Carvalho de Melo
2021-06-17 20:03             ` Andrii Nakryiko
2021-06-17 20:41               ` Arnaldo Carvalho de Melo
2021-06-17 21:56                 ` Andrii Nakryiko
2021-06-17 20:00           ` Andrii Nakryiko
2021-06-17 20:39             ` Arnaldo Carvalho de Melo
2021-06-17 21:52               ` Andrii Nakryiko
2021-06-18 17:21                 ` Arnaldo Carvalho de Melo
2021-06-16 17:40   ` Andrii Nakryiko [this message]
2021-06-16 18:25     ` Arnaldo Carvalho de Melo
2021-06-16 22:38       ` Andrii Nakryiko
2021-06-17  0:16         ` Arnaldo Carvalho de Melo
2021-06-17  4:26           ` Andrii Nakryiko

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