raw_skew test in ubuntu_kernel_selftests fail on GKE / GCP 4.15 / 5.0

Bug #1825491 reported by Po-Hsu Lin
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
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linux-signed-gke-4.15 (Ubuntu)
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Bug Description

 selftests: raw_skew
 ========================================
 Estimating clock drift: 83.518(est) -16.289(act) [SKIP]
 1..0 # Skipped: The clock was adjusted externally. Shutdown NTPd or other time sync daemons
 not ok 1..7 selftests: raw_skew [FAIL]

Note that we had a solution in bug 1811194, need to check if that patch has landed in GKE as well.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-1030-gke 4.15.0-1030.32
ProcVersionSignature: Ubuntu 4.15.0-1030.32-gke 4.15.18
Uname: Linux 4.15.0-1030-gke x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
Date: Fri Apr 19 07:20:14 2019
SourcePackage: linux-signed-gke-4.15
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Po-Hsu Lin (cypressyew) wrote :
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Yes,
the change from this patch: https://lists.ubuntu.com/archives/kernel-team/2019-February/098259.html
could be found in the code we use for testing this on GKE.

Revision history for this message
Sean Feole (sfeole) wrote :

affects 4.15.0-1033.35 linux-gke

tags: added: gke
Sean Feole (sfeole)
tags: added: sru-20190902
Sean Feole (sfeole)
summary: - raw_skew test in ubuntu_kernel_selftests fail on 4.15 GKE
+ raw_skew test in ubuntu_kernel_selftests fail on 4.15
tags: added: ibm-gt
Sean Feole (sfeole)
tags: added: oracle
Sean Feole (sfeole)
tags: added: sru-20191021
Revision history for this message
Po-Hsu Lin (cypressyew) wrote : Re: raw_skew test in ubuntu_kernel_selftests fail on 4.15

This issue can be found on 5.0.0-1029-gcp, but not on every instances, just on these:
* n1-highcpu-16
* n1-highmem-16
* n1-highmem-8
* n1-standard-64
* n1-standard-8

summary: - raw_skew test in ubuntu_kernel_selftests fail on 4.15
+ raw_skew test in ubuntu_kernel_selftests fail on 4.15 / 5.0
summary: - raw_skew test in ubuntu_kernel_selftests fail on 4.15 / 5.0
+ raw_skew test in ubuntu_kernel_selftests fail on GKE / GCP 4.15 / 5.0
Revision history for this message
Po-Hsu Lin (cypressyew) wrote :

Spotted on Bionic 5.0.0-49.53~18.04.1 this cycle.

tags: added: sru-20200518
tags: removed: ibm-gt
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