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SubjectRe: [PATCH v3, RESEND] kunit: Fix kunit.py run --build_dir='<foo>' fails on "unclean" trees
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Hi Brendan,

On Tue, 2020-04-07 at 13:31 -0700, Brendan Higgins wrote:
> On Mon, Apr 6, 2020 at 3:19 PM Vitor Massaru Iha <vitor@massaru.org>
> wrote:
> > Fix this bug: https://bugzilla.kernel.org/show_bug.cgi?id=205219
>
> I am still seeing the error described in the bug.
>
> Steps to reproduce:
>
> 1. tools/testing/kunit/kunit.py run --timeout=60 --jobs=8 --defconfig
>
> 2. make ARCH=um mrproper
>
> 3. tools/testing/kunit/kunit.py run --timeout=60 --jobs=8 --defconfig
> --build_dir=.kunit

Thanks. I managed to reproduce the bug. I'm working on it.

> One other note: It should probably be done in another patch, but it
> would be nice if kunit.py would tell you that you need to run
> mrproper
> when the olddefconfig fails.

Sure, I can work on it.

>
> > For some reason, the environment variable ARCH is used instead of
> > ARCH
> > passed as an argument, this patch uses a copy of the env, but using
> > ARCH=um and CROSS_COMPILER='' to avoid this problem.
> >
> > This patch doesn't change the user's environment variables,
> > avoiding
> > side effects.
> >
> > Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
> > ---
> > v2:
> > - Use the correct next branch
> >
> > v3:
> > - Use torvalds/master branch
> > - Use base parameter on git send-email
> > ---
> > tools/testing/kunit/kunit_kernel.py | 19 ++++++++++++-------
> > 1 file changed, 12 insertions(+), 7 deletions(-)
> >
> > diff --git a/tools/testing/kunit/kunit_kernel.py
> > b/tools/testing/kunit/kunit_kernel.py
> > index 63dbda2d029f..96216c699fde 100644
> > --- a/tools/testing/kunit/kunit_kernel.py
> > +++ b/tools/testing/kunit/kunit_kernel.py
> > @@ -20,6 +20,7 @@ import kunit_parser
> > KCONFIG_PATH = '.config'
> > kunitconfig_path = '.kunitconfig'
> > BROKEN_ALLCONFIG_PATH =
> > 'tools/testing/kunit/configs/broken_on_uml.config'
> > +env = dict(os.environ.copy(), ARCH='um', CROSS_COMPILE='')
> >
> > class ConfigError(Exception):
> > """Represents an error trying to configure the Linux
> > kernel."""
> > @@ -41,13 +42,15 @@ class LinuxSourceTreeOperations(object):
> > raise ConfigError(e.output)
> >
> > def make_olddefconfig(self, build_dir, make_options):
> > - command = ['make', 'ARCH=um', 'olddefconfig']
> > + command = ['make', 'olddefconfig']
> > if make_options:
> > command.extend(make_options)
> > if build_dir:
> > command += ['O=' + build_dir]
> > try:
> > - subprocess.check_output(command,
> > stderr=subprocess.PIPE)
> > + subprocess.check_output(command,
> > + stderr=subprocess.P
> > IPE,
> > + env=env)
> > except OSError as e:
> > raise ConfigError('Could not call make
> > command: ' + e)
> > except subprocess.CalledProcessError as e:
> > @@ -57,9 +60,10 @@ class LinuxSourceTreeOperations(object):
> > kunit_parser.print_with_timestamp(
> > 'Enabling all CONFIGs for UML...')
> > process = subprocess.Popen(
> > - ['make', 'ARCH=um', 'allyesconfig'],
> > + ['make', 'allyesconfig'],
> > stdout=subprocess.DEVNULL,
> > - stderr=subprocess.STDOUT)
> > + stderr=subprocess.STDOUT,
> > + env=env)
> > process.wait()
> > kunit_parser.print_with_timestamp(
> > 'Disabling broken configs to run KUnit
> > tests...')
> > @@ -71,13 +75,13 @@ class LinuxSourceTreeOperations(object):
> > 'Starting Kernel with all configs takes a
> > few minutes...')
> >
> > def make(self, jobs, build_dir, make_options):
> > - command = ['make', 'ARCH=um', '--jobs=' +
> > str(jobs)]
> > + command = ['make', '--jobs=' + str(jobs)]
> > if make_options:
> > command.extend(make_options)
> > if build_dir:
> > command += ['O=' + build_dir]
> > try:
> > - subprocess.check_output(command)
> > + subprocess.check_output(command, env=env)
> > except OSError as e:
> > raise BuildError('Could not call execute
> > make: ' + e)
> > except subprocess.CalledProcessError as e:
> > @@ -91,7 +95,8 @@ class LinuxSourceTreeOperations(object):
> > with open(outfile, 'w') as output:
> > process = subprocess.Popen([linux_bin] +
> > params,
> > stdout=output,
> > - stderr=subproces
> > s.STDOUT)
> > + stderr=subproces
> > s.STDOUT,
> > + env=env)
> > process.wait(timeout)
> >
> >
> >
> > base-commit: 7e63420847ae5f1036e4f7c42f0b3282e73efbc2
> > --
> > 2.25.1
> >

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