Re: [RFC PATCH 3/3] tests/qtest/migration-test: Enable test_ignore_shared

[Peter Xu]

On Mon, May 27, 2024 at 09:42:28AM -0300, Fabiano Rosas wrote:
> However, there is an issue here still on all archs - which might very
> well have been the original issue - which is the fact that the
> containers on the Gitlab CI have limits on shared memory usage.
> Unfortunately we cannot enable this test for the CI, so it needs a check
> on the GITLAB_CI environment variable.

Another option is we teach migration-test to detect whether memory_size of
shmem is available, skip if not.  It can be a sequence of:

  memfd_create()
  fallocate()
  ret = madvise(MADV_POPULATE_WRITE)

To be run at the entry of migration-test, and skip all use_shmem=true tests
if ret != 0, or any step failed above.

Thanks,

-- 
Peter Xu