Kernel Development QA

This article is the test plan for kernel development features in Yocto Project.

About Kernel Development

Describes common tasks you can perform on Yocto Project using kernel tools, and shows you how to use the metadata required to work with the kernel. For more information you can review the Kernel Development manual.

Objectives

Verify all kernel development components are fully functional.

Team members

QA Team involved in Kernel Development testing

Jair Gonzalez 

Scope

• linux-yocto-custom
• local source
• local source with parallel meta
• local source with recipe-space meta
• External source
• defconfig
• defconfig + fragments
• linux-yocto meta data + local fragments
• building external modules (hello-mod)

Test Strategy

There are several test approaches for kernel development, such as:

• Perform test cases agreed upon development during periodic full pass test cycles, according to the schedule.
• Write new test cases based on developer requests or new features added, as required.
• Maintain current test cases and update them according to changes.
• Perform exploratory testing on existing functionalities.

Test automation

Tests will be gradually automated whenever it may be possible.

Test Approach

Sanity testing

• Not covered at this moment
• TBD following DEV discussions

Submitting Bugs

Being part of the Yocto Project, Kernel Development follows the same Yocto Project guidelines and principles. The guidelines can be found at https://wiki.yoctoproject.org/wiki/Community_Guidelines. Kernel Development bugs are no different and are tracked into Bugzilla, the official Yocto Project bug tracker. Learn more about our process for reporting bugs.

Requirements

Use cases are documented in the corresponding section for each test case on Kernel Development Test Cases wiki.

HW Requirements

• Any machine able to build Yocto Project.

Software Requirements

• Poky
• GNU/Linux environment

Environment Requirements

• YP 2.3 Release:
• Ubuntu-14.04
• Ubuntu-14.10
• Ubuntu-15.04
• Fedora-21
• CentOS-6.*
• CentOS-7.*
• Debian-7.*
• Debian-8.*
• openSUSE-project-13.2

Features

Features to be Tested

1. linux-yocto-custom

1.1 local source

1.2 local source with parallel meta

1.3 local source with recipe-space meta

2. External Source

3. Defconfig

4.Defconfig + Fragments

5.building external modules (hello-mod)

The complete set of test cases are documented on the Kernel Development Test Cases wiki. They are also listed on the master Kernel test plan in Testopia, that can be reached following this link.

Schedule

Every cycle depending on Milestone and release candidate

Test execution Cycle

Build	Automated Test	Manual Test
Daily Master	NO	NO
Weekly Build	TBD	Y
Milestone Build	TBD	Y

Dependencies

• YP Dependencies
  • poky
  • meta-kerneltest recipe

Risk Assumptions

• For each change in kernel version and kernel cache, the team needs to change many configuration files in order to achieve a correct execution.
• Just like any software, the kernel is also susceptible to bugs.

Tools

• bitbake
• yocto-layer
• bitbake-layers
• any available text editor

Release Criteria/ Exit Criteria

• All test cases pass.
• No blocking issues are found.