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4996ec700c
As we released this in the beta channel, and it is a nice feature that our users love, backporting this to 4.4 so we don't have to revert it or conditionally behave differently. This is upstream Linux commits - 9a08c352d05305ca7651540c3b107da1e4e1f40b fs: add filp_clone_open API - 948b701a607f123df92ed29084413e5dd8cda2ed binfmt_misc: add persistent opened binary handler for containers Signed-off-by: Justin Cormack <justin.cormack@docker.com>
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