Describe the bug
Although Linux allows the stack size to be zero (it uses a nonzero default) other OS's do not have this fallback. The idmap-api-test attempts to create a task with zero stack and this fails on RTEMS.

To Reproduce
Run 'idmap-api-teston RTEMS. OS_TaskCreate()` fails (reports as TSF) but then other failures occur related to this.

Expected behavior
Should pass.

System observed on:
RTEMS 4.11.3 running in QEMU.

Additional context
Should consider forcibly making every OS fail (i.e. enforce in shared layer) if passed a zero stack.

Reporter Info
Joseph Hickey, Vantage Systems, Inc.