imsm mdadm resyncs on every reboot on a raid1 array

[Thomas Schiex]

I just installed the latest wily on my machine. Since then, my mdadm imsm raid1 array resyncs at every boot.
I suspect the array metadata is not set to "clean" state at reboot.

This looks very much like

https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1320402

I will try the provided patch and keep you updated. For the moment... resyncing again :-(
(yes, this takes more than 5 hours)

Description: Ubuntu Wily Werewolf (development branch)
Release: 15.10

ii mdadm 3.3-2ubuntu2 amd64 tool to administer Linux MD arrays (software RAID)

[Thomas Schiex (thomas-schiex)]

Actually, applying the patch available at https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1320402
did not help.

After a full resync leading to a clean disk and a reboot... ity resyncs again.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Tim Kosem (timkosem)]

Applying the patch available at https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1320402
worked for me.