❌ FAIL: Test report?for?kernel?5.11.0-rc7 (arm-next)

[Will Deacon]

On Wed, Feb 10, 2021 at 01:06:08PM -0500, Veronika Kabatova wrote:
> 
> 
> ----- Original Message -----
> > From: "Will Deacon" <will at kernel.org>
> > To: "Veronika Kabatova" <vkabatov at redhat.com>
> > Cc: "catalin marinas" <catalin.marinas at arm.com>, "CKI Project" <cki-project at redhat.com>,
> > linux-arm-kernel at 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:
> > > > On Wed, Feb 10, 2021 at 10:24:31AM -0500, Veronika Kabatova wrote:
> > > > > 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
> > > > 
> > > > 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.
> > 
> > > 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.

> 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 ;)

Will