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Merged
merged 6 commits into from
Sep 17, 2024
Merged

Drop support for guest Linux 4.14 #4804

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b41c69b
test: remove old boottime test
pb8o Sep 3, 2024
2fdb523
ci: drop support for guest kernel 4.14
pb8o Sep 14, 2024
8c348f7
tests: pass -vv option to pytest
pb8o Sep 16, 2024
a80d485
Merge branch 'main' into drop-guest-414
pb8o Sep 17, 2024
c3d543a
Merge branch 'main' into drop-guest-414
pb8o Sep 17, 2024
77bafa7
Merge branch 'main' into drop-guest-414
pb8o Sep 17, 2024
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5 changes: 5 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -16,6 +16,11 @@ and this project adheres to

### Removed

- [#4804](https://github.com/firecracker-microvm/firecracker/pull/4804): Drop
Support for guest kernel 4.14. Linux 4.14 reached end-of-life in
[January 2024](https://lore.kernel.org/lkml/2024011046-ecology-tiptoeing-ce50@gregkh/)
The minimum supported guest kernel now is 5.10.

### Fixed

- [#4796](https://github.com/firecracker-microvm/firecracker/pull/4796): Fixed
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6 changes: 3 additions & 3 deletions README.md
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Expand Up @@ -132,9 +132,9 @@ We test all combinations of:

| Instance | Host OS & Kernel | Guest Rootfs | Guest Kernel |
| :-------- | :---------------- | :----------- | :----------- |
| c5n.metal | al2 linux_5.10 | ubuntu 22.04 | linux_4.14 |
| m5n.metal | al2023 linux_6.1 | | linux_5.10 |
| m6i.metal | | | linux_6.1 |
| c5n.metal | al2 linux_5.10 | ubuntu 22.04 | linux_5.10 |
| m5n.metal | al2023 linux_6.1 | | linux_6.1 |
| m6i.metal | | | |
| m6a.metal | | | |
| m6g.metal | | | |
| m7g.metal | | | |
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10 changes: 2 additions & 8 deletions docs/snapshotting/snapshot-support.md
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Expand Up @@ -661,11 +661,5 @@ m6i won't work on an m6g instance.

| *CPU family* | *taken on host kernel* | *restored on host kernel* | *working?* |
| ------------ | ---------------------- | ------------------------- | ---------- |
| **all** | 5.10 | 6.1 | Y |
| **all** | 6.1 | 5.10 | Y |

What doesn't work:

- Graviton 4.14 \<-> 5.10 does not restore due to register incompatibility.
- Intel 5.10 -> 4.14 does not restore because unresponsive net devices
- AMD m6a 5.10 -> 4.14 does not restore due to mismatch in MSRs
| **x86_64** | 5.10 | 6.1 | Y |
| **x86_64** | 6.1 | 5.10 | N |
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