linux-kernel - Re: ndctl tests usable?

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Date:   Thu, 28 Apr 2022 10:51:42 +0200
From:   Michal Suchánek <msuchanek@...e.de>
To:     Shivaprasad G Bhat <sbhat@...ux.ibm.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux NVDIMM <nvdimm@...ts.linux.dev>
Subject: Re: ndctl tests usable?

On Thu, Apr 28, 2022 at 10:02:47AM +0530, Shivaprasad G Bhat wrote:
> On 4/26/22 23:39, Michal Suchánek wrote:
> > On Tue, Apr 26, 2022 at 09:47:19AM -0700, Dan Williams wrote:
> > > On Tue, Apr 26, 2022 at 9:43 AM Michal Suchánek <msuchanek@...e.de> wrote:
> > > > 
> > > > On Tue, Apr 26, 2022 at 09:32:24AM -0700, Dan Williams wrote:
> > > > > On Tue, Apr 26, 2022 at 9:15 AM Michal Suchánek <msuchanek@...e.de> wrote:
> > > > > > 
> > > > > > 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:
> > > > > > > > 
> > ...
> > > > > 
> > > > > The modinfo just tells you what modules are available, but it does not
> > > > > necessarily indicate which modules are actively loaded in the system
> > > > > which is what ndctl_test_init() validates.
> > > > 
> > > > Isn't what modinfo lists also what modrobe loads?
> 
> <snip>
> 
> > modules are not loaded before the test.
> > 
> > Maybe something goes wrong with the test module build?
> > 
> > It is very fragile and requires complete kernel source for each
> > configuration built. See below for the package
> > 
> > https://build.opensuse.org/package/show/home:michals/nfit_test
> > 
> > Attaching the log of test run which does not report any missing tools,
> > only complains about nfit.ko being production.
> 
> I have attempted to fix few of the known issues in the first 3 patches of
> the series posted here.
> 
> https://patchwork.kernel.org/project/linux-nvdimm/list/?series=633103

Thanks for pointing out these series.

It is certainly of interest but given the test VM is x86 the papr fixes
don't really apply to this case.

Michal