On Thu, Dec 14, 2023 at 11:33 AM Alexandre Belloni
<[email protected]> wrote:
>
> On 14/12/2023 10:53:05-0800, Khem Raj wrote:
> > On Thu, Dec 14, 2023 at 1:10 AM Alexander Kanavin
> > <[email protected]> wrote:
> > >
> > > On Wed, 13 Dec 2023 at 09:57, Yoann Congal <[email protected]> wrote:
> > > >
> > > > The bluetooth support adds a bluez5 dependency (and,recursively, a lot
> > > > of other stuff). Disable it by default to avoid having to build all of
> > > > this when it is not needed.
> > > >
> > > > This decrease the number of tasks run for a core-image-minimal build by
> > > > ~1000 (-21%).
> > > >
> > > > To re-enable bluetooth support in strace, add "bluez" to strace
> > > > PACKAGECONFIG. For example, in local.conf:
> > > >   PACKAGECONFIG:append:pn-strace = " bluez"
> > > >
> > > > Fixes [YOCTO #15323]
> > >
> > > I'm afraid I have to raise objections.
> > >
> > > First, this needs an explanation: what functionality in strace does
> > > this disable? Is that functionality important from the point of having
> > > bluetooth in DISTRO_FEATURES? Not respecting DISTRO_FEATURES sets a
> > > bad precedent, and should be more carefully justified and treated as
> > > an exception.
> > >
> > > Second, why is strace even needed in the context of
> > > core-image-minimal? It's not installed into the image, so I went and
> > > checked:
> > > util-linux-ptest needs mdadm
> > > mdadm-ptest needs strace.
> >
> > I looked briefly into util-linux pertaining to mdadm needs in tests, there
> > are 4 tests needing it.
> > md-raid0-whole, md-raid1-part, md-raid1-whole, align-512-4K-md
> >
> > and all of them are marked as
> > TS_KNOWN_FAIL="yes"
> >
> > See 
> > https://github.com/util-linux/util-linux/commit/7519c3edab120b14623931d5ddb16fdc6e7cad5d
> >
> > I think we can skip running these tests as well and safely avoid
> > depending upon mdadm for util-linux ptests which can break the depchain as 
> > well.
> >
>
> I think dropping the mdam ptests was the plan seeing the amount of
> breakage this does on the AB.

Good deal, I also see them happening on musl so I went ahead and cooked a patch
and posted it on ml. Musl util-linux ptests have 4 less fails now.

>
> > >
> > > Which begs the question. Should we continue to enable ptest by default
> > > in poky? Should we create and use a ptest-less distro configuration?
> > > It does pull in a ton of extra stuff all over the place which
> > > lengthens the builds a lot. And the resulting ptest packages aren't
> > > even used until one explicitly requests one of the ptest images.
> > >
> > > As an example, I saw an oe-selftest-armhost yesterday, which ran
> > > nearly 17 hours:
> > > https://autobuilder.yoctoproject.org/typhoon/#/builders/127/builds/2587
> > >
> > > If you go and look at what tests in it took the longest time, you see:
> > > 2023-12-13 15:45:22,812 - oe-selftest - INFO - RESULTS -
> > > runtime_test.Postinst.test_postinst_rootfs_and_boot_systemd: PASSED
> > > (32620.46s)
> > > 2023-12-13 15:45:22,794 - oe-selftest - INFO - RESULTS -
> > > prservice.BitbakePrTests.test_import_export_override_db: PASSED
> > > (12789.45s)
> > > 2023-12-13 15:45:22,789 - oe-selftest - INFO - RESULTS -
> > > overlayfs.OverlayFSEtcRunTimeTests.test_all_required_variables_set:
> > > PASSED (35205.79s)
> > > 2023-12-13 15:45:22,781 - oe-selftest - INFO - RESULTS -
> > > minidebuginfo.Minidebuginfo.test_minidebuginfo: PASSED (15395.76s)
> > > 2023-12-13 15:45:22,782 - oe-selftest - INFO - RESULTS -
> > > multiconfig.MultiConfig.test_multiconfig: PASSED (11098.06s)
> > > 2023-12-13 15:45:22,776 - oe-selftest - INFO - RESULTS -
> > > incompatible_lic.IncompatibleLicensePerImageTests.test_bash_and_license:
> > > PASSED (24012.67s)
> > > 2023-12-13 15:45:22,775 - oe-selftest - INFO - RESULTS -
> > > imagefeatures.ImageFeatures.test_mandb: PASSED (19394.74s)
> > > 2023-12-13 15:45:22,762 - oe-selftest - INFO - RESULTS -
> > > devtool.DevtoolExtractTests.test_devtool_build_image: PASSED
> > > (27341.75s)
> > > 2023-12-13 15:45:22,760 - oe-selftest - INFO - RESULTS -
> > > debuginfod.Debuginfod.test_debuginfod_qemu: PASSED (25784.11s)
> > > 2023-12-13 15:45:22,759 - oe-selftest - INFO - RESULTS -
> > > containerimage.ContainerImageTests.test_expected_files: PASSED
> > > (19453.84s)
> > > 2023-12-13 15:45:22,758 - oe-selftest - INFO - RESULTS -
> > > buildoptions.SanityOptionsTest.test_options_warnqa_errorqa_switch:
> > > PASSED (10492.68s)
> > > 2023-12-13 15:45:22,758 - oe-selftest - INFO - RESULTS -
> > > buildoptions.ToolchainOptions.test_toolchain_fortran: PASSED
> > > (11367.46s)
> > > 2023-12-13 15:45:22,743 - oe-selftest - INFO - RESULTS -
> > > baremetal.BaremetalTest.test_baremetal: PASSED (24196.04s)
> > >
> > > The same a-full selftest, but on a x86 host has these times, quicker
> > > than arm but still measured in hours:
> > > https://autobuilder.yoctoproject.org/typhoon/#/builders/79/builds/6179/steps/15/logs/stdio
> > >
> > > What do most of these tests do? They do indeed build
> > > core-image-minimal (sometimes full-cmdline or some other images), and
> > > sometimes in multiple variants within a single test. But they never
> > > use ptest. And so we need to find a way to make it happen faster.
> > >
> > > I'm going to get some numbers, first without any changes, then with
> > > your proposed change, then with ptest dropped - this will take a bit
> > > of time, so I wanted to get the concerns written and sent first.
> > >
> > > Alex
> > >
> > > 
> > >
>
> --
> Alexandre Belloni, co-owner and COO, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
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