ubuntu_vfat_stress hang on ppc64el with eoan 5.3.0-42.34 kernel

[Po-Hsu Lin]

>From my past test log, this test was once failing with PowerPC [1],
but that one was fixed.
And this test has passed with Eoan on P8/P8 node for the current
cycle. So it probably has something to do with ADT environment as
Thadeu mentioned here.

[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805778

On Fri, Mar 6, 2020 at 6:44 AM Thadeu Lima de Souza Cascardo
<cascardo at canonical.com> wrote:
>
> On Thu, Mar 05, 2020 at 10:43:14AM -0800, Sultan Alsawaf wrote:
> > Hi,
> >
> > I noticed that back on xenial, there was a known ubuntu_vfat_stress hang bug [1]
> > that only affected i386. There's been no mention of the bug occurring on
> > anything else since.
> >
> > However, powerpc hit the ubuntu_vfat_stress hang on the newest eoan kernel [2].
> >
> > Is this a cause for concern or is this issue benign?
> >
> > Thanks,
> > Sultan
> >
> > [1] https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1814231
> > [2] https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-eoan/eoan/ppc64el/l/linux/20200229_025412_feca6@/log.gz
> >
>
> Colin would be the expert here, but if I remember correctly, the possible issue
> was slow storage. As this is happening on ADT, it might as well be the cause.
>
> But it would be better to double check that.
>
> Cascardo.
>
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