Add the swapMemorySupport requirement to all tests related to the OOM killer. The --memory option has the subtle side effect of defaulting --memory-swap to double the value of --memory. The OOM killer doesn't kick in until the container exhausts memory+swap, and so without the memory swap cgroup the tests will timeout due to swap being effectively unlimited.
Document the default behavior of --memory-swap in the docker run man page.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Upstream-commit: ab42b091ee
Component: cli