ledmon incorrectly sets the status LED

[Roman Sobanski]

Description:

After creating the RAID volume, deleting it and creating second RAID volume (with same disks as with first volume but with less disks' count), LED statuses on disks left in container are ‘failure’.

Steps to reproduce:
1. Turn on ledmon:
# ledmon --all

2. Create RAID container:
# mdadm --create /dev/md/imsm0 --metadata=imsm --raid-devices=3 /dev/nvme5n1 /dev/nvme4n1 /dev/nvme2n1 --run –force

3. Create first RAID volume:
# mdadm --create /dev/md/Volume --level=5 --chunk 64 --raid-devices=3 /dev/nvme5n1 /dev/nvme4n1 /dev/nvme2n1 --run –force

4. Stop first RAID volume:
# mdadm --stop /dev/md/Volume

5. Delete first RAID volume:
# mdadm --kill-subarray=0 /dev/md127

6. Create second RAID volume in the same container (with less disks' count than first RAID, using the sane disks as in the first volume):
# mdadm --create /dev/md/Volume --level=1 --raid-devices=2 /dev/nvme5n1 /dev/nvme4n1 --run

7. Verify status LED on container member disks which are not part of second RAID volume.

Expected results:
Disks from container which are not in the second volume should have ‘normal’ status LED.

Actual results:
Disks from container which are not in the second volume have ‘failure’ status LED.

[Roman Sobanski (rsobans)]

It was fixed by below commits:
https://github.com/intel/ledmon/commit/4df5c4e63179210e9d7f1e83af8008bcc7117dda
https://github.com/intel/ledmon/commit/d40b7ee5c8ec025aa18dc5ad7ad451fb074bfdcb
https://github.com/intel/ledmon/commit/1616efa8226701ef868165344e55c8b0a3722f6f

[Launchpad Janitor (janitor)]

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

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[Woodrow Shen (woodrow-shen)]

a debdiff for new release of ledmon_0.92-0.1

[Woodrow Shen (woodrow-shen)]

debdiff v1

[Woodrow Shen (woodrow-shen)]

The upstream version 0.93 is landed in focal now:

ledmon (0.93-3) unstable; urgency=medium

  * Fix 32bit compilation error to prevent shift-count-overflow.

[Pawel Baldysiak (pbaldysi)]

Hi,
Are there any plans to fix it in bionic for which this issue was originally reported?

Thanks
Pawel