add exception to acl.kdump for qemu + aarch64 by mayankfz · Pull Request #29 · microsoft/azure-container-linux

mayankfz · 2026-07-10T08:43:11Z

Summary

add exception to acl.kdump for qemu + aarch64

Change Log

add exception to acl.kdump for qemu + aarch64

Type of Change

Does this affect the image build?

Yes
No

Associated Issues

Test details: https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1171261&view=results

Merge Checklist

All applicable boxes should be checked before merging

Image builds successfully with this change (or image build is not affected)
Any updated packages/SPECs build successfully
Relevant kola tests pass
All package sources are available
Source files have up-to-date hashes/manifests
Documentation has been updated to match any changes
Ready to merge

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Pull request overview

This PR updates the enforced kola test policy to allow acl.kdump-related tests to be exempted on QEMU + aarch64, acknowledging that kdump validation under TCG emulation is not reliably actionable and that arm64 coverage is handled via Azure.

Changes:

Add an exception for acl.kdump on platforms: [qemu] + architectures: [aarch64].
Add an exception for acl.kdump.grub on platforms: [qemu] + architectures: [aarch64].

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Signed-off-by: Mayank Singh <mayansingh@microsoft.com>

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Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

acl/tests/kola_enforcing.yaml:66

The PR title/description says this change only adds a QEMU+aarch64 exception for acl.kdump, but this diff also re-enables both acl.kdump and acl.kdump.grub in the enforced list and adds a matching QEMU+aarch64 exception for acl.kdump.grub. Please update the PR description (and optionally the title) to reflect the full scope so reviewers understand the behavioral change in enforcement.

  - name: acl.kdump
    exceptions:
      - bootloader: [grub]
        reason: acl.kdump requires UKI boot (addon-based crashkernel)
      - platforms: [qemu]
        architectures: [aarch64]
        reason: Crash dump under TCG emulation is too slow and I/O-variable to be reliable, aarch64 coverage via Azure.

  - name: acl.kdump.grub
    exceptions:

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Comments suppressed due to low confidence (1)

acl/tests/kola_enforcing.yaml:70

The PR title/description says this change adds an exception to acl.kdump for qemu + aarch64, but the new exception is attached to acl.kdump.grub (and this hunk also re-enables both acl.kdump and acl.kdump.grub in the enforcing list). Please either (a) move/add the qemu/aarch64 exception under acl.kdump if that’s what is intended, or (b) update the PR title/description/changelog to reflect that the exception is for acl.kdump.grub (and that both tests are being re-enabled).

  - name: acl.kdump.grub
    exceptions:
      - platforms: [azure]
        reason: writing /oem/grub.cfg does not persist across reboot on cloud platforms.
      - bootloader: [uki]
        reason: acl.kdump.grub is for GRUB images only
      - platforms: [qemu]
        architectures: [aarch64]
        reason: Crash dump under TCG emulation is too slow and I/O-variable to be reliable.

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Comments suppressed due to low confidence (2)

acl/tests/kola_enforcing.yaml:72

The PR title/description mention adding an exception to acl.kdump, but this change also adds a new qemu+aarch64 exception for acl.kdump.grub. If both are required, the PR description should mention both test entries; otherwise consider dropping the acl.kdump.grub change to match the stated scope.

  - name: acl.kdump.grub
    exceptions:
      - platforms: [azure]
        reason: writing /oem/grub.cfg does not persist across reboot on cloud platforms.
      - bootloader: [uki]
        reason: acl.kdump.grub is for GRUB images only
      - platforms: [qemu]
        architectures: [aarch64]
        reason: Crash dump under TCG emulation is too slow and I/O-variable to be reliable.

acl/tests/kola_enforcing.yaml:62

The PR title/description call out an exception for qemu+aarch64, but this rule disables acl.kdump for all qemu architectures. If the intent is to only exempt the TCG-emulated arm64 case (as described), scope this exception with architectures: [aarch64] (or update the PR description if the broader exemption is intentional).

      - platforms: [qemu]
        reason: Crash dump cycle is too slow and I/O-variable for qemu CI.

Jiri Appl (jiria) · 2026-08-07T17:29:53Z

+    exceptions:
+      - bootloader: [grub]
+        reason: acl.kdump requires UKI boot (addon-based crashkernel)
+      - platforms: [qemu]


Are we skipping for qemu both archs here, but only aarch64 for the grub flavor of the test on purpose?

yes, if we want we can enable acl.kdump for qemu+amd64. thanks

if that works reliably, then lets have it enabled consistently

No worries, have enabled the test for qemu + amd64.
pipeline runs ->

https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1179467&view=results
https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1179477&view=results

Jiri Appl (jiria) · 2026-08-07T17:38:18Z

Kicked off https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1177926&view=results to make sure we have a good run post reintroduction or if we should merge microsoft/azure-container-linux-mantle#25 first.

Jiri Appl (jiria) · 2026-08-08T14:33:32Z

Kicked off https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1177926&view=results to make sure we have a good run post reintroduction or if we should merge microsoft/azure-container-linux-mantle#25 first.

QEMU aarch64 kdump is still slow sometimes, so I think we will need the mantle changes first:

--- FAIL: acl.kdump (4226.62s)

mayankfz · 2026-08-08T14:41:14Z

Kicked off https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1177926&view=results to make sure we have a good run post reintroduction or if we should merge microsoft/azure-container-linux-mantle#25 first.

QEMU aarch64 kdump is still slow sometimes, so I think we will need the mantle changes first:
--- FAIL: acl.kdump (4226.62s)

Agreed

mayankfz · 2026-08-08T14:46:39Z

Latest run with the changes (acl-scripts + mantle) -> https://dev.azure.com/mariner-org/ACL/_build/results?buildId=1178396&view=results

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Pull request overview

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Suppressed comments (1)

acl/tests/kola_enforcing.yaml:73

PR title/description say this change is only an exception for acl.kdump on qemu+aarch64, but this hunk also re-enables acl.kdump/acl.kdump.grub enforcement (previously commented out) and adds the same qemu+aarch64 exception to acl.kdump.grub. If this broader scope is intended, the PR metadata should be updated to reflect it; otherwise consider limiting the change to just the intended test(s).

  - name: acl.kdump
    exceptions:
      - bootloader: [grub]
        reason: acl.kdump requires UKI boot (addon-based crashkernel)
      - platforms: [qemu]
        architectures: [aarch64]
        reason: Crash dump under TCG emulation is too slow and I/O-variable to be reliable.

  - name: acl.kdump.grub
    exceptions:
      - platforms: [azure]
        reason: writing /oem/grub.cfg does not persist across reboot on cloud platforms.
      - bootloader: [uki]
        reason: acl.kdump.grub is for GRUB images only
      - platforms: [qemu]
        architectures: [aarch64]
        reason: Crash dump under TCG emulation is too slow and I/O-variable to be reliable.

SeanDougherty · 2026-08-13T20:56:14Z

-  #       reason: writing /oem/grub.cfg does not persist across reboot on cloud platforms.
-  #     - bootloader: [uki]
-  #       reason: acl.kdump.grub is for GRUB images only
+  - name: acl.kdump


Blocking merge order: these entries re-enable kdump enforcement, but the mantle-side enabling/managed-reboot change is still only in microsoft/azure-container-linux-mantle#25 (open). Build 1179466 consumed acldevel.azurecr.io/mantle:latest; its log shows an intermediate PR #25 implementation (acl.kdump.grub still fails at kdump.go:131 on UKI), rather than mantle aclmain or PR #25 current head. If this lands first and mantle:latest is rebuilt from mantle aclmain, both tests are again excluded for ACL and the evaluator can fail with "enforced test NOT SELECTED". Please merge #25 first, refresh the mantle image, rebase this branch, and rerun PR #29.

mayankfz marked this pull request as ready for review July 10, 2026 08:45

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add exception to acl.kdump for qemu + aarch64

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Signed-off-by: Mayank Singh <mayansingh@microsoft.com>

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kdump test enabled but not scheduled for qemu

c551a31

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Summary

Change Log

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mayankfz commented Jul 10, 2026 •

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