jammy/linux-realtime: 5.15.0-1004.4 -proposed tracker

[Joseph Salisbury]

This bug will contain status and test results related to a kernel source (or snap) as stated in the title.

For an explanation of the tasks and the associated workflow see:
  https://wiki.ubuntu.com/Kernel/kernel-sru-workflow

-- swm properties --
boot-testing-requested: true
built:
  route-entry: 1
delta:
  promote-to-proposed:
  - meta
  - main
  sru-review:
  - main
  - meta
kernel-stable-master-bug: 1957809
packages:
  main: linux-realtime
  meta: linux-meta-realtime
phase: Testing
phase-changed: Tuesday, 25. January 2022 14:41 UTC
proposed-announcement-sent: true
proposed-testing-requested: true
reason:
  automated-testing: Ongoing -- testing in progress
synthetic:
  :promote-to-as-proposed: Invalid
variant: debs
versions:
  main: 5.15.0-1004.4
  meta: 5.15.0.1004.5
versions-clamp:
  self: 5.15.0-1004.4

[Launchpad Janitor (janitor)]

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

[Krzysztof Kozlowski (krzk)]

Boot tests failed with arm64 boot warning (WARNING: CPU: 0 PID: 13 at kernel/sched/core.c:3075 set_task_cpu+0x16c/0x20c), see #KERN-2044
amd64 boot looks fine. Mark as boot passed manually.

[Krzysztof Kozlowski (krzk)]

Known issues on amd64: ubuntu_kernel_selftests/ftrace:ftracetest on amd64, lp:1959587
Known issues on arm64: warning during boot (kernel/sched/core.c:3075), lp:1959424

All other issues are deploy errors, so marking as regression test passed.