Files
linuxkit/kernel
Rolf Neugebauer 15d3ce25aa kernel: Add contents of ${DEBUG} to the LOCALVERSION
This way 'uname -r' will report something like
4.9.44-linuxkit_dbg on debug kernels.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
2017-08-24 15:10:53 +01:00
..
2017-03-07 23:48:46 +00:00
2017-07-28 10:48:10 -05:00
2017-08-24 15:10:53 +01:00
2017-04-26 22:29:47 +01:00

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