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

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Date: Wed, 21 Feb 2024 09:26:23 -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 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 could remove livepatch from default test until these changes are made
> to test ring environments?
> 
> thanks,
> -- Shuah