I'm continuing to hunt. I did confirm all of those systems are syncing time from the same master, using chronyd, and look to be configured correctly.  I'm not sure what would cause the time to jump like that, unless maybe the "master", which is our IPA server, synced it's time and that caused some sort of ripple to the downstream other systems.

The patches have been rerun, with most results coming in, https://lab.dpdk.org/results/dashboard/patchsets/17130/, and are passing without issue.

The only failures I see in recent patches are on "bugfix for Kunpeng SVE compile" (https://lab.dpdk.org/results/dashboard/patchsets/17135/), with unit tests failing on two OSes.

And the intermittent Dynamic Config failure.  We think we have tracked this down to a patch we sent into DTS, and that was merged into DTS, but was then reverted a few days ago (https://git.dpdk.org/tools/dts/commit/?id=90f460df240b3020191916b15705abe208a14694).  I've asked Lijuan why it was reverted. 

Cheers,
Lincoln

On Wed, May 19, 2021 at 11:55 AM Aaron Conole <aconole@redhat.com> wrote:
Lincoln Lavoie <lylavoie@iol.unh.edu> writes:

> As far as I can tell, it looks like one of the clocks fell out of sync on the container runners, which caused the
> builds to fail.

I think that's also been causing some failures with the alarm_test and
cycles_test unit tests.  If the time source is making adjustments to
time, we will probably fail these tests as well.

> Also, as far I can tell from an initial look, it impacted the two patches Thomas cited.  Two patches that are
> running now (i.e. they don't have a full set of results yet, look like they are running on.  So, it was a transient
> issue.  Obviously we need to track down its root cause. I suspect something happened with NTP, which should
> be keeping the runners and bare metal systems synced.  I'm looking into that now.
>
> For the patches with the failed jobs, we will queue those for rerun today.
>
> Cheers,
> Lincoln
>
> On Wed, May 19, 2021 at 9:05 AM Aaron Conole <aconole@redhat.com> wrote:
>
>  Thomas Monjalon <thomas@monjalon.net> writes:
>
>  > It seems the IOL CI is failing today:
>  >
>  >
https://patches.dpdk.org/project/dpdk/patch/1621406749-15536-1-git-send-email-changpeng.liu@intel.com/

>  >
https://patches.dpdk.org/project/dpdk/patch/20210519032745.707639-1-stevex.yang@intel.com/

>  >
>  > That's especially embarassing for closing the release.
>
>  I don't see any useful logs in the failures.
>
>  What changed?



--
Lincoln Lavoie
Principal Engineer, Broadband Technologies
21 Madbury Rd., Ste. 100, Durham, NH 03824
+1-603-674-2755 (m)