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Ordinary build tools need writable hard links, pathname Unix sockets, and disk-image I/O beyond 2 GiB. actiondfs currently rejects these operations or opens backing files without
O_LARGEFILE.Add staged hard links with shared inode identity and correct link counts across unlink/rename, allow staged FIFOs and Unix sockets while continuing to reject device nodes, and set
O_LARGEFILEon both CAS and staged backing opens. Immutable CAS inputs cannot acquire writable hard-link aliases.Extend the existing filesystem exerciser with shared-write/link-count checks, Unix socket bind/listen/connect/accept and directory iteration, immutable-input hard-link rejection, and reopening/reading/writing a sparse 5 GiB image. The sparse file is removed before output upload. The native probe failed on the old large-file path and passed with these changes.
Validation was performed with these fixes combined in a Linux KVM integration workspace, using actiond for execution and caching. The native unit suite, filesystem probes, and a large mixed-language Bazel workload passed. These draft changes have not been validated with
tools/e2e.sh vmon macOS.