June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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Getting the PREEMPT_RT patches
The RT developers do not create patch sets for every kernel version because of the amount of effort involved. On average, they create patches for every other kernel. The most recent kernels that are supported at the time of writing are as follows:
- 4.9-rt
- 4.8-rt
- 4.6-rt
- 4.4-rt
- 4.1-rt
- 4.0-rt
- 3.18-rt
- 3.14-rt
- 3.12-rt
- 3.10-rt
- 3.4-rt
- 3.2-rt
The patches are available at https://www.kernel.org/pub/linux/kernel/projects/rt.
If you are using the Yocto Project, there is an rt version of the kernel already. Otherwise, it is possible that the place you got your kernel from already has the PREEMPT_RT patch applied. If not, you will have to apply the patch yourself. Firstly, make sure that the PREEMPT_RT patch version and ...
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