On Wed, Dec 20, 2017 at 10:37:08AM -0800, Yonghong Song wrote: > The default rlimit RLIMIT_MEMLOCK is 64KB. In certain cases, > e.g. in a test machine mimicking our production system, this test may > fail due to unable to charge the required memory for prog load: > > $ ./test_dev_cgroup > libbpf: load bpf program failed: Operation not permitted > libbpf: failed to load program 'cgroup/dev' > libbpf: failed to load object './dev_cgroup.o' > Failed to load DEV_CGROUP program > ... > > Changing the default rlimit RLIMIT_MEMLOCK to unlimited > makes the test pass. > > This patch also fixed a problem where when bpf_prog_load fails, > cleanup_cgroup_environment() should not be called since > setup_cgroup_environment() has not been invoked. Otherwise, > the following confusing message will appear: > ... > (/home/yhs/local/linux/tools/testing/selftests/bpf/cgroup_helpers.c:95: > errno: No such file or directory) Opening Cgroup Procs: /mnt/cgroup.procs > ... > > Signed-off-by: Yonghong Song <[email protected]>
Applied, Thanks Yonghong.
