linux-kernel - Re: ndctl tests usable?

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Date:   Tue, 26 Apr 2022 18:14:35 +0200
From:   Michal Suchánek <msuchanek@...e.de>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux NVDIMM <nvdimm@...ts.linux.dev>
Subject: Re: ndctl tests usable?

On Tue, Apr 26, 2022 at 08:51:25AM -0700, Dan Williams wrote:
> On Tue, Apr 26, 2022 at 5:39 AM Michal Suchánek <msuchanek@...e.de> wrote:
> >
> > Hello,
> >
> > there is some testsuite included with ndctl, and when following the
> > instructions to build it most tests fail or are skipped:
> >
> > [   95s] Ok:                 3
> > [   95s] Expected Fail:      0
> > [   95s] Fail:               5
> > [   95s] Unexpected Pass:    0
> > [   95s] Skipped:            15
> > [   95s] Timeout:            0
> >
> > Is this the expected outcome or is this a problem with the ndctl build?
> >
> > Attaching test run log.
> 
> I see a few missing prerequisites:
> 
> [   78s] /usr/src/packages/BUILD/ndctl-73/test/pmem-errors.sh: line
> 64: mkfs.ext4: command not found
> [   95s] /usr/src/packages/BUILD/ndctl-73/test/security.sh: line 25:
> jq: command not found

Indeed, with those installed I get much more tests passing:

[  148s] Ok:                 13  
[  148s] Expected Fail:      0   
[  148s] Fail:               4   
[  148s] Unexpected Pass:    0   
[  148s] Skipped:            6   
[  148s] Timeout:            0   

> 
> This report:
> 
> [   51s]  1/23 ndctl:ndctl / libndctl               SKIP
> 0.02s   exit status 77
> 
> ...seems to indicate that the nfit_test modules did not appear to load
> correctly. I never expected that the nfit_test modules would be
> redistributable, so I was surprised to see them being installed by an
> actual package "nfit_test-kmp-default-0_k5.17.4_1-6.1". The reason
> they are not redistributable is because they require replacing the
> production build of the kernel provided modules libnvdimm.ko,
> nd_pmem.ko, etc... What I expect is happening is that the production
> version of libnvdimm.ko is already loaded (or is the only one on the

AFAICT neither is the case, that's why I dump the module information in
the log.

Thanks

Michal