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Mind The Gap - The Linux Ecosystem Kernel Patch Gap
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- 1 Intro
- 2 Kernel patching is our common interest. In other words: How old is your smart TV?
- 3 Kernel patching is a complex shared responsibility.
- 4 Multiple parties are involved in kernel patching, which brings a unique set of challenges.
- 5 Ecosystem fragmentation further complicates kernel patching.
- 6 Automation can improve patching processes.
- 7 Device vendors need to make four crucial decisions early in the development process.
- 8 Kernel lifecycle and support timeframe need to be carefully planned pro-actively.
- 9 Legal requirements on support timeframe are relatively recent.
- 10 Device vendors must carefully consider the choice of Linux kernel version.
- 11 3a A best practice for embedded device vendors is using a LTS Linux kernel version.
- 12 Chipset vendors must support the chosen (LTS) kernel version and hardware requirements.
- 13 We implemented Kernel Patchalyzer to help analyze the patch status of embedded devices during assessments.
- 14 Kernel Patchalyzer helps testing for kernel patches quickly with a high confidence.
- 15 Finding available patches involves preprocessing and then searching across several kernel repositories
- 16 Automated testing involves trying to apply the patch to the analyzed kernel source code.
- 17 Duration of patch analysis is drastically reduced by optimization efforts.
- 18 Automation can be utilized to improve patching processes during development.
