weekly testing failed on AWS

[jepio]

Description

Weekly all platform test run has failed on AWS. As far as I can tell, all instances failed to boot. I've managed to capture the following boot log (only the last 64KB is available): m4.xlarge-boot.log, which points at disk corruption.

Additional information

Failing job: http://jenkins.infra.kinvolk.io:8080/job/os/job/kola/job/aws/124/
Please add any information here that does not fit the above format.

[jepio]

Initially thought this was m4 instance related, but t3 instances have the same issue. Re-running prerelease/aws job to see if it fixes the disk corruption.

[pothos]

Will close now as I think we will address any issues without this ticket - I wonder if it was related to the vmdk corruption we found a workaround for.