----- Original Message -----

From: "Will Deacon" <will@kernel.org>
To: "Veronika Kabatova" <redacted>
Cc: "catalin marinas" <catalin.marinas@arm.com>, "CKI Project" <redacted>,
linux-arm-kernel@lists.infradead.org
Sent: Wednesday, February 10, 2021 7:56:03 PM
Subject: Re: ❌ FAIL: Test	report?for?kernel?5.11.0-rc7 (arm-next)

On Wed, Feb 10, 2021 at 01:06:08PM -0500, Veronika Kabatova wrote:

quoted

----- Original Message -----

quoted

From: "Will Deacon" <will@kernel.org>
To: "Veronika Kabatova" <redacted>
Cc: "catalin marinas" <catalin.marinas@arm.com>, "CKI Project"
[off-list ref],
linux-arm-kernel@lists.infradead.org
Sent: Wednesday, February 10, 2021 6:31:34 PM
Subject: Re: ❌ FAIL: Test report	for?kernel?5.11.0-rc7 (arm-next)

On Wed, Feb 10, 2021 at 12:07:23PM -0500, Veronika Kabatova wrote:

quoted

quoted

On Wed, Feb 10, 2021 at 10:24:31AM -0500, Veronika Kabatova wrote:

quoted

Hi, I have a few results back:

- resubmitted the same kernel: gets stuck in the same spot
- tried the new version pushed today: gets stuck in the same spot

That's odd, as I just received a pass report for that branch!

https://lore.kernel.org/r/cki.598435E2D5.M3C5MKJ1NV@redhat.com (local)

Is it just flakey, perhaps? Obviously, that's not great either, but
it
will
make bisection more challenging.

We have a large number of machines (both physical and virtual) and it's
impossible to run all tests on all of them, so they are randomly picked
as
long as they fit the distro and test requirements. The distribution for
ARM tree is 1 physical and 1 "any" machine (which usually ends up being
virtual). The jobs from the report you linked ran on different machines
and didn't pick the one that failed to boot previously, so I manually
forced my testing to pick that machine to eliminate some variables.

Ah thanks, I hadn't twigged that it was a different set of hosts each
time.
Makes sense.

quoted

The machine in question can on course be somewhat flaky (hard to
eliminate
that possibility completely), but I checked our historical data and it
didn't fail to boot a single time other than with these two new
kernels.

So the first thing we should probably try is whether vanilla -rc7 fails
on
the machine causing us problems. If it does, then the arm64 queue for
5.12
is out of the equation, if not then we can try a targetted bisection.

Would you be able to try v5.11-rc7 please?

Can do.

Brill, thanks.

quoted

Someone snatched up the machine in the meanwhile and appears to have it
reserved till next Monday :/ I sincerely hope that they'll release it
sooner
and have queued up the test job with high priority. Will let you know right
as I get the results.

Just tell them the machine is broken and they really don't want to use it
for anything important ;)

Our wishes were granted by the lab fairy and the machine was returned
rather quickly :)

The 5.11-rc7 kernel boots.


Veronika

Will

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