zram module not found in 4.4/4.15 KVM kernel

Bug #1766823 reported by Po-Hsu Lin on 2018-04-25
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubuntu-kernel-tests
Undecided
Unassigned
linux (Ubuntu)
Undecided
Unassigned
Nominated for Bionic by Po-Hsu Lin
Nominated for Xenial by Po-Hsu Lin
linux-kvm (Ubuntu)
Undecided
Unassigned
Nominated for Bionic by Po-Hsu Lin
Nominated for Xenial by Po-Hsu Lin

Bug Description

The ubuntu_zram_smoke_test will fail due to the lack of the zram module.

07:32:19 DEBUG| Running '/home/ubuntu/autotest/client/tests/ubuntu_zram_smoke_test/ubuntu_zram_smoke_test.sh'
07:32:19 ERROR| [stderr] modprobe: FATAL: Module zram not found in directory /lib/modules/4.15.0-1008-kvm
07:32:19 DEBUG| [stdout] FAILED: cannot load zram module
07:32:19 ERROR| Exception escaping from test:

There is no zram config in the Bionic KVM kernel config file.
$ grep -i zram debian.kvm/config/config.common.ubuntu
$

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-1008-kvm 4.15.0-1008.8
ProcVersionSignature: User Name 4.15.0-1008.8-kvm 4.15.17
Uname: Linux 4.15.0-1008-kvm x86_64
NonfreeKernelModules: signpost
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Wed Apr 25 07:32:47 2018
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)

Po-Hsu Lin (cypressyew) wrote :
Po-Hsu Lin (cypressyew) wrote :

This module does not exist in 4.4 kvm as well.
Can be fixed by CONFIG_ZRAM=m

summary: - zram module not found in 4.15 KVM kernel
+ zram module not found in 4.4/4.15 KVM kernel
tags: added: xenial

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1766823

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
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