refactor: add an assert.

source/os/src/osMemory.c

@@ -352,6 +352,8 @@ void* taosMemoryMallocAlign(uint32_t alignment, int64_t size) {
 #else
 #if defined(LINUX)
   void* p = memalign(alignment, size);
+  ASSERT((((uint64_t)p) & (alignment - 1)) == 0x0);
+
   return p;
 #else
   return taosMemoryMalloc(size);