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Current Status

Any task using a network or distributed filesystem will cause sys_checkpoint() to return failure because the file its fd refers to lacks the .checkpoint file operation. See UncheckpointableFilesystems.

Issues, Solutions, Impacts


Issue Solution(s) Current Impact Solution Impact
NFS TODO None Unknown
ocfs2 None planned None Unknown
gfs2 None planned None Unknown
AFS None planned None Unknown
Coda None planned None Unknown


A userspace NFS server is probably checkpointable so long as it relies on other checkpointable primitives like inet sockets and a checkpointable local filesystem. NFS clients are more problematic since they require special kernel support.

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