[Bug 1320402] Re: mdadm resyncs imsm raid in "Normal" state

[The Setlaz]

Windows finished the Verification. RAID1 went into Normal state. I could
reboot on both Ubuntu and Windows several times while the RAID1 stayed
in Normal state.

When I created a file on the RAID array in Ubuntu, then after reboot, it
started a full resync again.

dmesg | grep md:
[    3.261354] md/raid1:md126: not clean -- starting background reconstruction
[    3.261357] md/raid1:md126: active with 2 out of 2 mirrors
[    3.261369] md126: detected capacity change from 0 to 3000590401536
[    3.265360]  md126: p1 p2
[    3.282575] md: md126 switched to read-write mode.
[    3.282620] md: resync of RAID array md126

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to mdadm in Ubuntu.
https://bugs.launchpad.net/bugs/1320402

Title:
   mdadm resyncs imsm raid in "Normal" state

Status in “mdadm” package in Ubuntu:
  Confirmed

Bug description:
  Got an imsm raid1 which I don't boot from. Whenever bios reports the
  raid as being in "Normal" state, mdadm starts a resync of it after
  boot. If a resync already is underway (bios reports it as being in
  "Verify" state), it continues where it left off.

  This appears to be very similar to a problem in Fedora:
  https://bugzilla.redhat.com/show_bug.cgi?id=753335 It's apparently
  fixed there for some time now. (The workaround mentioned in comment 41
  in that ticket doesn't work in Ubuntu, but I guess that's due to
  distro differences in initramfs and systemd.)

  Using mdadm 3.2.5-5ubuntu4 in a fresh Trusty install.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1320402/+subscriptions