一、案例
我们举个案例，比如recovery升级中，碰到这个的log
01-01 08:03:22.410000 217 217 W applypatch: type=1400 audit(0.0:16): avc: denied { read } for name="mmcblk0p15" dev="tmpfs" ino=3364 scontext=u:r:install_recovery:s0 tcontext=u:object_r:block_device:s0 tclass=blk_file permissive=001-01 08
