Files
linuxkit/alpine/kernel
Justin Cormack 0b7ffbd135 Use exact build context for kernel build
Saves passing too much context, less error prone and should
mean builds are faster if not clean, consistent with elsewhere.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
2016-12-15 11:27:41 -08:00
..
2016-12-15 10:13:01 -08:00
2016-11-08 16:12:29 +00:00

Temporary non modular kernel config for pinata alpha

TODO: build with Alpine and/or use Alpine kernels - needs some patches.

The build is mostly silent. To view the output use docker log -f <containerid>. The build creates multiple containers, so multiple invocations may be necessary. To view the full build output one may also invoke docker build . and then copy the build artefacts from the image afterwards.

To build with various debug options enabled, build the kernel with make DEBUG=1. The options enabled are listed in kernel_config.debug. This allocates a significant amount of memory on boot and you may need to adjust the kernel config on some systems. Specifically:

--- a/alpine/kernel/kernel_config
+++ b/alpine/kernel/kernel_config
@@ -415,8 +415,8 @@ CONFIG_DMI=y
 # CONFIG_CALGARY_IOMMU is not set
 CONFIG_SWIOTLB=y
 CONFIG_IOMMU_HELPER=y
-CONFIG_MAXSMP=y
-CONFIG_NR_CPUS=8192
+CONFIG_MAXSMP=n
+CONFIG_NR_CPUS=8
 # CONFIG_SCHED_SMT is not set
 CONFIG_SCHED_MC=y
 # CONFIG_PREEMPT_NONE is not set