linux-kernel - Re: [PATCH 1/3] selftests: lib.mk: Do not process TEST_GEN_MODS

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Date: Wed, 21 Feb 2024 19:04:03 -0300
From: Marcos Paulo de Souza <mpdesouza@...e.com>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: Marcos Paulo de Souza <mpdesouza@...e.com>,
	kernel test robot <lkp@...el.com>,
	Josh Poimboeuf <jpoimboe@...nel.org>,
	Jiri Kosina <jikos@...nel.org>,
	Miroslav Benes <mbenes@...e.cz>,
	Petr Mladek <pmladek@...e.com>,
	Joe Lawrence <joe.lawrence@...hat.com>,
	oe-kbuild-all@...ts.linux.dev,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	live-patching@...r.kernel.org
Subject: Re: [PATCH 1/3] selftests: lib.mk: Do not process TEST_GEN_MODS_DIR

On Wed, 21 Feb 2024 14:12:00 -0700 Shuah Khan <skhan@...uxfoundation.org> wrote:

> On 2/21/24 05:26, Marcos Paulo de Souza wrote:
> > On Tue, 20 Feb 2024 17:19:54 -0700 Shuah Khan <skhan@...uxfoundation.org> wrote:
> > 
> >> On 2/19/24 06:53, Marcos Paulo de Souza wrote:
> >>> On Mon, 19 Feb 2024 09:15:15 -0300 Marcos Paulo de Souza <mpdesouza@...e.com> wrote:
> >>>
> >>>> On Mon, 19 Feb 2024 14:35:16 +0800 kernel test robot <lkp@...el.com> wrote:
> >>>>
> >>>>> Hi Marcos,
> >>>>>
> >>>>> kernel test robot noticed the following build errors:
> >>>>>
> >>>>> [auto build test ERROR on 345e8abe4c355bc24bab3f4a5634122e55be8665]
> >>>>>
> >>>>> url:    https://github.com/intel-lab-lkp/linux/commits/Marcos-Paulo-de-Souza/selftests-lib-mk-Do-not-process-TEST_GEN_MODS_DIR/20240216-021601
> >>>>> base:   345e8abe4c355bc24bab3f4a5634122e55be8665
> >>>>> patch link:    https://lore.kernel.org/r/20240215-lp-selftests-fixes-v1-1-89f4a6f5cddc%40suse.com
> >>>>> patch subject: [PATCH 1/3] selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
> >>>>> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> >>>>> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240219/202402191417.XULH88Ct-lkp@intel.com/reproduce)
> >>>>>
> >>>>> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> >>>>> the same patch/commit), kindly add following tags
> >>>>> | Reported-by: kernel test robot <lkp@...el.com>
> >>>>> | Closes: https://lore.kernel.org/oe-kbuild-all/202402191417.XULH88Ct-lkp@intel.com/
> >>>>>
> >>>>> All errors (new ones prefixed by >>):
> >>>>>
> >>>>>>> make[3]: *** /lib/modules/5.9.0-2-amd64/build: No such file or directory.  Stop.
> >>>>
> >>>> We should ask the kernel test robot machine owners to install kernel-devel
> >>>> package in order to have this fixed.
> >>>
> >>> Or maybe ask them to change the reproducer to specify KDIR to the git tree,
> >>> instead of /lib/modules/?
> >>>
> >>
> >> This would be a regression to automated test rings. Do you have any other
> >> solutions?
> > 
> > I would say that we could skip the these tests if kernel-devel package is not
> > installed. Would it be acceptable? At least we would avoid such issues like this
> > in the future as well.
> > 
> 
> We have to check and skip build. Something we could do in the livepatch
> Makefile. Can you send patch for this - I will oull this in for next
> so we don't break test rings.

I added a new patch in the same patchset that would cover this, skipping the
build and test if kernel-devel is not installed. The patchset was sent earlier
today. Please check if the new patch fixes things on the build robot.

Thanks in advance,
  Marcos

> 
> thanks,
> -- Shuah