当我在内核 4.3.0 上运行的 arm board（banana pi）上运行 lsmod 时会发生这种情况
# lsmod
Module Size Used by
async_raid6_recov 1434 -2
async_pq 5548 -2
async_xor 3771 -2
async_memcpy 1665 -2
sha512_generic 8213 -2
rsa_generic 3235 -2
asn1_decoder 2667 -2
mpi 13730 -2
poly1305_generic 3386 -2
pcbc 2396 -2
michael_mic 2051 -2
md4 3536 -2
ghash_generic 1908 -2
gcm 10511 -2
fcrypt 8128 -2
echainiv 2110 -2
crypto_user 4316 -2
crc32 1581 -2
cmac 2657 -2
chacha20poly1305 6641 -2
chacha20_generic 2902 -2
ccm 7537 -2 …