Error out early if system does not support pre-copy checkpointing

CRIU's pre-copy migration support relies on the soft dirty page tracking
in the Linux kernel:

 https://www.kernel.org/doc/Documentation/vm/soft-dirty.txt

This functionality is not implemented for all architectures and it can
also be turned off in the kernel.

CRIU can check if the combination of architecture/kernel/CRIU supports
the soft dirty page tracking and exports this feature checking
functionality in go-criu.

This commit adds an early check if the user selects pre-copy
checkpointing to error out if the system does not support it.

Signed-off-by: Adrian Reber <areber@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/test/e2e/checkpoint_test.go b/test/e2e/checkpoint_test.go
index e97503337..4771f8e58 100644
--- a/test/e2e/checkpoint_test.go
+++ b/test/e2e/checkpoint_test.go
@@ -939,6 +939,9 @@ var _ = Describe("Podman checkpoint", func() {
 	})
 
 	It("podman checkpoint container with --pre-checkpoint", func() {
+		if !criu.MemTrack() {
+			Skip("system (architecture/kernel/CRIU) does not support memory tracking")
+		}
 		if !strings.Contains(podmanTest.OCIRuntime, "runc") {
 			Skip("Test only works on runc 1.0-rc3 or higher.")
 		}
@@ -972,6 +975,9 @@ var _ = Describe("Podman checkpoint", func() {
 
 	It("podman checkpoint container with --pre-checkpoint and export (migration)", func() {
 		SkipIfRemote("--import-previous is not yet supported on the remote client")
+		if !criu.MemTrack() {
+			Skip("system (architecture/kernel/CRIU) does not support memory tracking")
+		}
 		if !strings.Contains(podmanTest.OCIRuntime, "runc") {
 			Skip("Test only works on runc 1.0-rc3 or higher.")
 		}