On Tue, Jun 26, 2018 at 02:41:40PM +0200, Quentin Schulz wrote:
> Hi all,
> 
> On Wed, Jun 13, 2018 at 01:02:06PM -0600, Stephen Warren wrote:
> > On 06/13/2018 12:53 PM, Quentin Schulz wrote:
> > > Hi Tom,
> > > 
> > > On Wed, Jun 13, 2018 at 11:43:32AM -0400, Tom Rini wrote:
> > > > On Mon, Jun 04, 2018 at 11:47:30AM +0200, Quentin Schulz wrote:
> > > > 
> > > > > This tests that the importing of an environment with a specified
> > > > > whitelist works as intended.
> > > > > 
> > > > > If there are variables passed as parameter to the env import command,
> > > > >     those only should be imported in the current environment.
> > > > > 
> > > > > For each variable passed as parameter, if
> > > > >   - foo is bar in current env and bar2 in exported env, after 
> > > > > importing
> > > > >   exported env, foo shall be bar2,
> > > > >   - foo does not exist in current env and foo is bar2 in exported env,
> > > > >   after importing exported env, foo shall be bar2,
> > > > >   - foo is bar in current env and does not exist in exported env (but 
> > > > > is
> > > > >   passed as parameter), after importing exported env, foo shall be 
> > > > > empty,
> > > > > 
> > > > > Any variable not passed as parameter should be left untouched.
> > > > > 
> > > > > Two other tests are made to test that size cannot be '-' if the 
> > > > > checksum
> > > > > protection is enabled.
> > > > > 
> > > > > Signed-off-by: Quentin Schulz <quentin.sch...@bootlin.com>
> > > > > Reviewed-by: Simon Glass <s...@chromium.org>
> > > > > Reviewed-by: Stephen Warren <swar...@nvidia.com>
> > > > 
> > > > This seems to not be working?
> > > > 
> > > > https://travis-ci.org/trini/u-boot/jobs/391504525
> > > > 
> > > 
> > > I just rebased on top of v2018.07-rc1, ran
> > > make mrproper
> > > ./test/py/test.py --bd sandbox --build
> > > 
> > > and the tests run fine ...
> > 
> > Most likely the failure is due to the test relying on some feature that
> > isn't enabled on the board being tested (emulated via qemu); you'll need to
> > add something like the following to indicate which feature the test relies
> > upon:
> > 
> > @pytest.mark.buildconfigspec('cmd_echo')
> > 
> 
> OK, I've added the dependency on cmd_importenv and cmd_exportenv, but
> that does not make it work any better.
> 
> I added my U-Boot repo to Travis and ran the tests. Here is the output
> of the job: https://travis-ci.org/QSchulz/u-boot/
> 
> Specifically, you have:
> https://travis-ci.org/QSchulz/u-boot/jobs/396742661
> https://travis-ci.org/QSchulz/u-boot/jobs/396742668
> https://travis-ci.org/QSchulz/u-boot/jobs/396742669
> https://travis-ci.org/QSchulz/u-boot/jobs/396742670
> https://travis-ci.org/QSchulz/u-boot/jobs/396742671
> 
> I've dumped the RAM after the `env export` and it looks pretty much
> empty compared to what I could see with sandbox tests.
> 
> Since all the other tests work, I'm not sure I actually introduced a
> regression or if it just never worked. I'll run tests without my patches
> that do a `env export` followed by a dump of the memory, a reset of the
> environement and a `env import` to see where we stand right now.

It's possible you've exposed a latent bug here.  What stood out to me at
the time was that it looked like we were using 0x0 for the address and
that's quite possibly an invalid location to be using on these
platforms.

> Before doing this test (which takes hours), my guess is that either `env
> export` is not working for the given configs, or there is something
> broken in the test framework (is the RAM address I get with
> u_boot_utils.find_ram_base() actually valid?).

Note that when debugging these kind of issues (and it's too much of a
hassle to recreate their environment locally via docker) it's quite
normal to start by hacking out all of the other jobs from .travis.yml so
it only runs what you care about.  Thanks!

-- 
Tom

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