Comment # 7 on bug 853944 from boo35 boo35

(In reply to Neil Brown from comment #6)
> Can you please move the Conflicts= line from mdadm-last-resort@.timer to
> mdadm-last-resort@.service can confirm that this fixes the issues?

Doesn't look like it.

boot

dmesg | grep -i activ | grep -i degraded
    [   88.912859] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.912894] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [   88.912931] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.912963] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [   88.912984] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.913001] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [  119.419984] systemd[1]: Starting Activate md array even though
degraded...
    [  119.426709] systemd[1]: Starting Activate md array even though
degraded...
    [  119.435537] systemd[1]: Starting Activate md array even though
degraded...
    [  119.463533] systemd[1]: Started Activate md array even though degraded.
    [  119.474120] systemd[1]: Started Activate md array even though degraded.
    [  119.482104] systemd[1]: Started Activate md array even though degraded.

cat /proc/mdstat | grep ^md | sort
    md0 : active raid1 sdf3[1] sde3[0]
    md1 : active raid1 sde4[0] sdf4[1]
    md2 : active raid10 sda1[1] sdc1[3] sdd1[2] sdb1[0]
    md3 : active raid10 sdm1[3] sdl1[0] sdn1[2] sdk1[1]
    md4 : active raid10 sdg1[0] sdh1[1] sdi1[2] sdj1[3]

EDIT

    cat /usr/lib/systemd/system/mdadm-last-resort@.service 
        [Unit]
        Description=Activate md array even though degraded
        DefaultDependencies=no
    +    Conflicts=sys-devices-virtual-block-%i.device

        [Service]
        Type=oneshot
        ExecStart=/sbin/mdadm --run /dev/%i

    cat /usr/lib/systemd/system/mdadm-last-resort@.timer 
        [Unit]
        Description=Timer to wait for more drives before activating degraded
array.
        DefaultDependencies=no
    -    Conflicts=sys-devices-virtual-block-%i.device

        [Timer]
        OnActiveSec=30

reboot

dmesg | grep -i activ | grep -i degraded
    [   88.693704] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.693721] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [   88.693729] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.693742] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [   88.693748] systemd[1]: Starting Timer to wait for more drives before
activating degraded array..
    [   88.693761] systemd[1]: Started Timer to wait for more drives before
activating degraded array..
    [  118.779355] systemd[1]: Starting Activate md array even though
degraded...
    [  118.790671] systemd[1]: Starting Activate md array even though
degraded...
    [  118.801642] systemd[1]: Starting Activate md array even though
degraded...
    [  118.850604] systemd[1]: Started Activate md array even though degraded.
    [  118.856927] systemd[1]: Started Activate md array even though degraded.
    [  118.864238] systemd[1]: Started Activate md array even though degraded.