fix: snapshot: disallow snapshots with vhost-user devices#5845
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ShadowCurse merged 1 commit intoApr 23, 2026
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## main #5845 +/- ##
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+ Coverage 83.04% 83.06% +0.01%
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Files 276 276
Lines 29558 29583 +25
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+ Hits 24547 24573 +26
+ Misses 5011 5010 -1
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zulinx86
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Manciukic
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Previously we were incorrectly allow snapshots to be created even with vhost-user devices by simply ignoring them. Now we correctly return an error if we detect vhost-user devices. Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>
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zulinx86
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Apr 22, 2026
Manciukic
approved these changes
Apr 23, 2026
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Changes
Previously we were incorrectly allow snapshots to be created even with vhost-user devices by simply ignoring them. Now we correctly return an error if we detect vhost-user devices.
Reason
Follow the docs: https://github.com/firecracker-microvm/firecracker/blob/main/docs/api_requests/block-vhost-user.md#snapshot-support
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how they are solving the problem in a clear and encompassing way.
in the PR.
CHANGELOG.md.Runbook for Firecracker API changes.
integration tests.
TODO.rust-vmm.