},
	}
	for name, v := range tests {
		v := v
		t.Run(name, func(t *testing.T) {
			b := makePallocBits(v.beforeInv)
			invertPallocBits(b)
			for _, i := range v.frees {
				b.Free(i, uint(v.npages))
			}
			want := makePallocBits(v.afterInv)
			invertPallocBits(want)
			checkPallocBits(t, b, want)
		})
	}
}

func TestFindBitRange64(t *testing.T) {