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feat(racer): add page allocator crate - #863
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Jordan Olshevski (jveski) wants to merge 44 commits into
Open
Jordan Olshevski (jveski) wants to merge 44 commits into
Jordan Olshevski (jveski) wants to merge 44 commits into
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Jordan Olshevski (jveski)
added this pull request to stack #868
October 6, 2026 16:08
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Copilot review overview
🟡 Changes recommended
Reentrant RawWaker callbacks can panic or leave write-fence futures permanently pending.
Review effort: Balanced
Findings: 1
Open (1)
What changed in this PR
Adds a worker-local page allocator crate to the Racer dataplane workspace.
Changes:
- Implements aligned buffers, slab I/O, segment leasing, recovery, and reclamation.
- Adds production, simulation, and real-I/O tests.
- Integrates allocator checks and Clippy into CI.
| File | Description |
|---|---|
.github/workflows/ci.yaml |
Adds allocator CI gates. |
cmd/racer-dataplane/README.md |
Documents allocator testing. |
cmd/racer-dataplane/Cargo.toml |
Registers the new crate. |
cmd/racer-dataplane/Cargo.lock |
Locks allocator dependencies. |
cmd/racer-dataplane/alloc/.gitignore |
Ignores local build output. |
cmd/racer-dataplane/alloc/Cargo.toml |
Defines crate metadata and features. |
cmd/racer-dataplane/alloc/src/lib.rs |
Implements public types and aligned buffers. |
cmd/racer-dataplane/alloc/src/segments.rs |
Implements segment lifecycle and reclamation. |
cmd/racer-dataplane/alloc/src/slab.rs |
Implements slab storage and I/O fencing. |
cmd/racer-dataplane/alloc/tests/workflows.rs |
Tests allocator workflows and failures. |
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Copilot fix the failing workflow on this pr |
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Fixed the Racer Rust Workspace compile error in |
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A same-generation image that marked a live Open, Sealed, or Evicting slot Free let the next append reissue its extents under a generation that old mappings still matched. Restore now publishes such slots at the next generation, returns Unavailable when that would wrap, and reports generation rollback as Stale instead of Corrupt.
…variants One generator and runner drive appends, faulted I/O, leases, freezes, historical and edited restores, reclaim, and restart against an independent record model. Regression traces, a restore cross-product, and seeded sequences share the runner. Scripted tests it subsumes are removed.
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Jordan Olshevski (jveski)
requested review from
Philip Lombardi (plombardi89)
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a balanced review from Copilot
October 9, 2026 14:03
Philip Lombardi (plombardi89)
approved these changes
Oct 9, 2026
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Adds the Racer page allocator crate.