On Tue, Sep 3, 2019 at 5:52 AM Yufen Yu <yuyufen@xxxxxxxxxx> wrote: > > When run test case: > mdadm -CR /dev/md1 -l 1 -n 4 /dev/sd[a-d] --assume-clean --bitmap=internal > mdadm -S /dev/md1 > mdadm -A /dev/md1 /dev/sd[b-c] --run --force > > mdadm --zero /dev/sda > mdadm /dev/md1 -a /dev/sda > > echo offline > /sys/block/sdc/device/state > echo offline > /sys/block/sdb/device/state > sleep 5 > mdadm -S /dev/md1 > > echo running > /sys/block/sdb/device/state > echo running > /sys/block/sdc/device/state > mdadm -A /dev/md1 /dev/sd[a-c] --run --force > > mdadm run fail with kernel message as follow: > [ 172.986064] md: kicking non-fresh sdb from array! > [ 173.004210] md: kicking non-fresh sdc from array! > [ 173.022383] md/raid1:md1: active with 0 out of 4 mirrors > [ 173.022406] md1: failed to create bitmap (-5) > > In fact, when active disk in raid1 array less than one, we > need to return fail in raid1_run(). > > Reviewed-by: NeilBrown <neilb@xxxxxxx> > Signed-off-by: Yufen Yu <yuyufen@xxxxxxxxxx> Applied to md-next. Thanks!