20736 munmap(0xb7f77000, 57204)         = 0
20736 munmap(0xb7f84000, 4096)          = 0
20736 munmap(0xb7cae000, 0)          = 0
20740 munmap(0xb7fa7000, 984775)         = 0
20740 munmap(0xb7fb4000, 1)          = 0
20739 munmap(0xb7f30000, 545664)         = 0
20739 munmap(0xb7f3d000, 439)          = 0
20738 munmap(0xb8000000, 5600)         = 0

