Weekly update 2022-07-20

[akhi3030]

Done:

• @Ekleog: Code review (Enable reuse of mmaps between artifacts wasmer#125, spec: Export indirection finite-wasm#2, spec: Runtime spec for gas and stack accounting finite-wasm#4)
• @Ekleog: Looked into an issue where nayduck fuzzers would not upload the artifacts to GCS, this resulted in filing Fuzzer artifacts don't always end up in the GCS bucket Near-One/nayduck#32
• @Ekleog: Landed nearcore side of cargo-bolero switch (fuzz: copy all cargo-fuzz targets to cargo-bolero integration tests #7143)
• @Ekleog: Disabled secondary stack limit for fuzzing (Disable the secondary stack limit for fuzzing #7195)
• @Ekleog: Submitted PR to cargo-bolero required for usage from nayduck (Allow setting corpus and crashes dirs in cargo bolero test camshaft/bolero#86)
• @Ekleog: Submitted PR to nayduck to allow nayduck to run cargo-bolero-based fuzzers (fuzzer: add a cargo-bolero fuzz target type Near-One/nayduck#33)
• @matklad: test: unignore wasmer2 upgrade test #7189 fixed ignored test which got broke after we enabled async block application.
• @matklad: fix: fix span leakage #7188 -- investigate why fixing tracing span leakage didn't actually fixed canaries. Turns out it was semantic merge conflict during backport
• @jakmeier: Merge stabilisation PR for fixed function call gas charging. (feat: stabilize precharged contract loading gas #7177)
• @jakmeier: New function call base cost estimation code (feat: estimate fn call action without loading cost #6996)
• @jakmeier: Created slides to explain where nearcore spends time on setting up function call execution and how we charge gas for it.
• @jakmeier: Looked into estimator changes due to changes from last week, adding small improvements on the way (feat: new estimator variance check #7197, refactor: remove metric field in GasCost #7215)
• @jakmeier: Refactor to make protocol upgrade integration tests easier (refactor: call_main utility for integration test #7217)

• @nagisa: Specifying and implementing indirection, fleshing out the test infrastructure and such.

In progress:

• @Ekleog: Testing fuzzer: add a cargo-bolero fuzz target type Near-One/nayduck#33
• @matklad: test: simplify cops support in KeyValue runtime #7213, test: more useful assert #7211, test: simplify mocking in setup_mock_all_validators #7194, tests: cleanup to use HashMap "literal" #7193, test: simplify setup_mock_validators a bit #7192, test: tiny simplification in setup_mock_all_validators #7191, test: simplify code a bit #7190 -- cleanup various client-level test with the end-goal of writing tests for chunk-only producers
• @jakmeier: NEP371 for access key allowance at runtime (NEPs#371)
• @jakmeier: NEP372 for gas price information at runtime (NEPs#327, feat: implement NEP372 gas price host functions #7204)
• @jakmeier: Conclusively running new function call estimations

• @nagisa: Work on Enable reuse of mmaps between artifacts wasmer#125 and nearcore integration has been paused until further notice, although I’ve remembered that there is a good reason besidees performance to pursue it sooner rather than later: it can potentially help with Validator mainnet node restarted with memory allocation failed issue #5931