Both alloc_pending tests requires the main thread to utilize
the heap so that child threads must pend on memory allocations.
However, the previous implementation was not SMP friendly where
the child threads could run and succeeded in memory allocation
on other CPUs while the main thread continued to allocate
memory. The main thread would fail to allocate memory if
the child thread (on other CPU) has not freed the memory yet.
Not to mention that, in this scenario, the child thread was not
pending on memory allocation which defeated the purpose of
the test. So to fix this, make sure the main thread allocates
enough memory so future allocations must go into pending.
Also, check that the child thread cannot allocation memory
when first entered so it is actually going into pending.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
771c177909