TITLE: BUG: Dentry still in use in unmount
ALT: BUG: Dentry still in use [unmount of proc proc]
CORRUPTED: Y
PANICKED: Y

[ 1722.511384] Buffer I/O error on dev loop0, logical block 6, async page read
[ 1722.511384] BUG: Dentry ffff880175978600{i=8bb9,n=lo}  still in use (1) [unmount of proc proc]
[ 1722.511384] ------------[ cut here ]------------
[ 1722.511384] WARNING: CPU: 1 PID: 8922 at fs/dcache.c:1445 umount_check+0x246/0x2c0 fs/dcache.c:1436
[ 1722.511384] Kernel panic - not syncing: panic_on_warn set ...
