fix(sidecar): never tree-sync a host root of "/" into the kernel#251
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NathanFlurry merged 1 commit intoJul 3, 2026
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A tracked process whose host cwd is the filesystem root (the ActiveProcess::new default when a test or embedder registers a process without setting it) made the host-write sync walk the ENTIRE host filesystem into the kernel VFS until the size/inode caps fired. No sanctioned flow shadows the host root wholesale — host access is scoped through mounts — so skip that walk with a warning.
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A tracked process whose host cwd is the filesystem root (the
ActiveProcess::new default when a test or embedder registers a process
without setting it) made the host-write sync walk the ENTIRE host
filesystem into the kernel VFS until the size/inode caps fired. No
sanctioned flow shadows the host root wholesale — host access is scoped
through mounts — so skip that walk with a warning.