This is currently blocked from migration due to an arm64 autopkgtest
regression:

crun (1.20-1syncable1 to 1.21-1ubuntu1)
    Migration status for crun (1.20-1syncable1 to 1.21-1ubuntu1): BLOCKED: 
Rejected/violates migration policy/introduces a regression
    Issues preventing migration:
    autopkgtest for crun/1.21-1ubuntu1: amd64: Pass, arm64: Regression ♻ , 
armhf: No test results, ppc64el: Pass, s390x: Pass

It looks like this arm64 regression has been a persistent issue since
the 1.21-1 version and potentially earlier. I've triggered a new
autopkgtest run for reference (`migration-reference/0`).

Digging into the details, I wonder if this might be related to a recently 
closed upstream bug:
https://github.com/containers/crun/issues/1763

This upstream issue describes checkpoint test failures specifically on
`aarch64` due to "memory tracking not supported" with the newer 6.x
kernels (which Questing is using). Their approach was to conditionally
skip the problematic test on `aarch64`.

The specific test failing in our logs is `test_checkpoint_restore.py 3 -
checkpoint-restore-pre-dump`.

Our current autopkgtest logs don't show the exact output of the
`final_dump_size > pre_dump_size` comparison that causes the failure in
this test, only the overall FAIL. Getting that specific output might
help confirm if this is indeed the same "memory tracking" issue.


** Bug watch added: github.com/containers/crun/issues #1763
   https://github.com/containers/crun/issues/1763

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https://bugs.launchpad.net/bugs/2115813

Title:
  crun 1.21-1 autopkgtest fails

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