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Ghost file copying: performance and correctness issues with sparse files

Ghost file copying: performance and correctness issues with sparse files: a task in LegoFlow-SWE (Harbor dataset). When checkpointing ghost files that are sparse (files with many holes interspersed with data blocks), CRIU exhibits poor performance and a correctness bug that can silently corrupt…

The task

When checkpointing ghost files that are sparse (files with many holes interspersed with data blocks), CRIU exhibits poor performance and a correctness bug that can silently corrupt checkpoint data. This issue requests two improvements:

Part of Lego-X/LegoFlow-SWE.