import asyncio
import os
import psutil

def run(coro):
    """Run the given coroutine, allocating missing memory if necessary."""
    # Get the current process and its memory usage
    process = psutil.Process()
    mem = process.memory_info().rss

    # Allocate missing memory if necessary
    if mem < os.sysconf('SC_PAGE_SIZE') * os.sysconf('SC_PHYS_PAGES'):
        # Calculate the amount of missing memory
        missing_mem = os.sysconf('SC_PAGE_SIZE') * os.sysconf('SC_PHYS_PAGES') - mem

        # Allocate the missing memory
        asyncio.get_event_loop().run_in_executor(None, os.malloc, missing_mem)

    # Run the coroutine
    asyncio.get_event_loop().run_until_complete(coro)
