linux-kernel - Re: selftests/sched_ext: testing on BPF CI

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Message-ID: <Z5pVD-c9f7TmS1rA@slm.duckdns.org>
Date: Wed, 29 Jan 2025 06:19:27 -1000
From: Tejun Heo <tj@...nel.org>
To: Andrea Righi <arighi@...dia.com>
Cc: Ihor Solodrai <ihor.solodrai@...ux.dev>,
	David Vernet <void@...ifault.com>,
	Changwoo Min <changwoo@...lia.com>,
	Alexei Starovoitov <ast@...nel.org>, bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: selftests/sched_ext: testing on BPF CI

On Wed, Jan 29, 2025 at 08:27:02AM +0100, Andrea Righi wrote:
> Hi Ihor,
> 
> On Wed, Jan 29, 2025 at 12:21:43AM +0000, Ihor Solodrai wrote:
> > Hi Tejun, Andrea.
> > 
> > I tested a couple of variants of bpf-next + sched_ext source tree,
> > just sharing the results.
> 
> Thanks for testing!
> 
> > 
> > I found a working state: BPF CI pipeline ran successfully twice
> > (that's 8 build + run of selftests/sched_ext/runner in total).
> 
> Ok.
> 
> > 
> > Working state requires most patches between sched_ext/master and
> > sched_ext/for-6.14-fixes [1], and also the patch
> >   "tools/sched_ext: Receive updates from SCX repo" [2]
> > 
> > On plain bpf-next the dsp_local_on test fails [3].
> > Without the patch [2] there is a build error [4]: missing
> > SCX_ENUM_INIT definition.
> 
> We definitely need all the patches in sched_ext/for-6.14-fixes. I think
> once Tejun sends the PR and we land the for-6.14-fixes upstream we should
> reach a stable state with the sched_ext selftests. I don't have any other
> additional pending fix at the moment.
> 
> > 
> > We probably don't want to enable selftests/sched_ext on BPF CI with
> > that many "temporary" patches. I suggest to wait until all of this is
> > merged upstream.
> 
> Sounds reasonable to me. Tejun?

Sure.

Thanks.

-- 
tejun