Files
linuxkit/kernel
Rolf Neugebauer 20cc4b3ddf kernel: Don't check kernel config for debug kernels
The kernel config for debug kernels is created by concatenating
config files, so we can't use diff to check it.

This fixes a regression introduced by:
9362de0a ("kernel: Verify kernel config")

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
2017-08-23 14:33:25 +01:00
..
2017-07-28 10:48:10 -05:00

See ../docs/kernel-patches.md for more information on kernel builds.

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