Public bug reported:
1. Install OS Ubuntu 24.04.1 on IMSM RAID 1 volume
- Manual installation via installer GUI, without updating the installer
or the OS.
2. Boot to OS.
3. Crate two IMSM data RAID 1.
mdadm --create /dev/md/imsm1 --metadata imsm --raid-devices=2
/dev/nvme1n1 /dev/nvme2n1 --run
mdadm --create /dev/md/r1 --level=1 --raid-devices=2 /dev/nvme1n1
/dev/nvme2n1 --run
mdadm --create /dev/md/imsm2 --metadata imsm --raid-devices=2
/dev/nvme3n1 /dev/nvme4n1 --run
mdadm --create /dev/md/r2 --level=1 --raid-devices=2 /dev/nvme3n1
/dev/nvme4n1 --run
4. Execute OS reboot. (RAIDs resync in progres)
- "reboot"
5. Observed the OS is getting stuck while running reboot.
Hang reproduction happening approximately once every 6 attempts.
Expected: reboot is performed successfully.
Actual: reboot hanged during during system shutdown.
A similar issue had already been resolved previously, but the latest comment
indicates a potentially new, related problem.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2079038
Attached are two logs, one with an issue and one without an issue.
the logs contain the output from the moment the reboot command is
executed until the system shutdown is completed.
The issue also occurs on UB 24.04.2, The upstream kernel was also
tested(config to build from Ubuntu) and the issue reproduces.
** Affects: ubuntu
Importance: Undecided
Status: New
** Attachment added: "ub_24_04_1_hang_issue.log"
https://bugs.launchpad.net/bugs/2129560/+attachment/5919708/+files/ub_24_04_1_hang_issue.log
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https://bugs.launchpad.net/bugs/2129560
Title:
[VROC][RAID][UB 24.04.1] The OS is getting Stuck while running
reboots.
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