mpk: enable more tests#7376
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alexcrichton merged 2 commits intobytecodealliance:mainfrom Oct 26, 2023
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This adds a Wasmtime-level test checking that, when MPK is available on the system, an MPK-configured memory pool obeys the same invariants as other memory pool configurations (e.g., `guards_present` for normal allocation, `guards_present_pooling` for non-MPK pooling allocation). It also fixes a bug. A previous commit had updated the validation logic of `MemoryPool` to check that the memory plan's bound would be reached before the next slot of the same stripe. But `MemoryPool::allocate` has some "double-check" logic that was triggered by this test. It now matches the logic in `MemoryPool::validate`.
Some Wasmtime tests rely on specific limits to the memory pool. When MPK is enabled, these tests fail because MPK splits access to the pool slices among different stores. This change does not yet enable MPK, though locally I run with MPK enabled. With this commit and MPK enabled locally, all Wasmtime tests now pass.
alexcrichton
approved these changes
Oct 26, 2023
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See the commit messages for more details, but in summary:
With this change,
ci/run-tests.shruns locally on an MPK-enabled machine with MPK turned on. There is more work to be done before MPK can be turned on by default (see #7119) but this helps.