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[PR #4774] [CLOSED] fix(ghidra): recognize OutOfMemoryError beyond the diagnostic budget #6404
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opened 2026-10-31 01:14:12 +00:00 by bsakaguchi
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📋 Pull Request Information
Original PR: https://github.com/morluto/rea/pull/4774
Author: @sx4im
Created: 10/17/2026
Status: ❌ Closed
Base:
main← Head:fix/4682-ghidra-oom-beyond-diagnostic-budget📝 Commits (5)
6edf099fix(ghidra): report unconfirmed memory cause when OOME output is truncated037900ffix(ghidra): detect OutOfMemoryError beyond the diagnostic budget7bef62fdocs(ghidra): describe OOME observation beyond the retention budget31935e1Merge pull request #3 from sx4im/reason/4682-oome-marker-scan1825647Merge upstream main into fix/4682-ghidra-oom-beyond-diagnostic-budget📊 Changes
11 files changed (+658 additions, -17 deletions)
View changed files
📝
docs/binary-diagnostics.md(+6 -1)📝
src/ghidra/GhidraClient.ts(+6 -10)📝
src/ghidra/GhidraDiagnostics.ts(+43 -1)📝
src/ghidra/GhidraProvider.behavior.test.ts(+39 -0)📝
src/ghidra/GhidraProviderClient.ts(+19 -2)➕
src/process/ProcessOutputMarkerScanner.test.ts(+158 -0)➕
src/process/ProcessOutputMarkerScanner.ts(+127 -0)📝
src/process/ProviderProcess.ts(+60 -2)📝
tests/boundary/providers/ghidra/ghidraClient.fixture.ts(+5 -0)➕
tests/boundary/providers/ghidra/ghidraOomRetention.test.ts(+159 -0)📝
tests/fixtures/fakeGhidra.mjs(+36 -1)📄 Description
Fixes #4682
Summary
Ghidra output is kept only up to an 8 MiB budget, so an OutOfMemoryError printed after that was lost and reported as
execution_failure("runrea doctor"). It is now reported asresource_constraint(memory) with the Java heap detail andconfigured_jvm_max_heap, however much output came first.Problem and expected behavior
Trigger: >8 MiB of earlier output, then a failing operation prints
java.lang.OutOfMemoryError: Java heap space. Expected: the same result as without the earlier output.Change and scope
ProviderProcessSupervisortakes anoutputMarkerand checks every chunk before the budget applies (newProcessOutputMarkerScanner). It keeps a small tail per stream so a marker split across chunks is found, and stores only the latest match (offset + line, max 1 KiB each side).snapshotOutputSincereturns a match only if its offset is inside the checkpoint range, so an OOME from an earlier operation or beforeresetOutputis ignored.GhidraClientsets the marker tojava.lang.OutOfMemoryErrorand adds matches asfailure_output.observed_oome(redacted).projectObservedJvmMemoryFailurereads them through the existing OOME path.complete === falseguess, which turned cancelled drains, earlier budget use and startup timeouts into memory errors. Incomplete output with no OOME keeps the original code.Scope: ordinary fix within existing boundaries; no maintainer decision needed.
Contract and boundary impact
src/processscans output; Ghidra projection reads it.failure_output.observed_oome; codes change only when an OOME was actually printed.Expected effects:
Evidence and regression coverage
Tests: new
tests/boundary/providers/ghidra/ghidraOomRetention.test.ts(real provider/client/capture/projection, fake Ghidra modesoom_exit_tools,flood_then_oom_exit_tools,flood_then_exit_tools,flood_then_malformed,flood_silent);src/process/ProcessOutputMarkerScanner.test.ts(after budget, split marker, earlier checkpoint, reset, limits); updatedGhidraProvider.behavior.test.ts. The existing cancelled-drain protocol test still passes.Base: the new test fails on
e5ee3acand upstream main5d6029e(only the >8 MiB case:execution_failure), and passes here. Thanks to @RishTheFish21, who offered this regression in #4682; the fake-Ghidra modes follow it.Output (>8 MiB case):
resource_constraint,resource: memory,reported_limits.configured_jvm_max_heap: "4G", message "...reports java.lang.OutOfMemoryError: Java heap space...",failure_output.complete: false, stdout 11014752 bytes / 8388608 retained, oneobserved_oomeentry from stderr.Gaps: real Ghidra not run (the JVM is simulated); Windows not run.
Observed, derived, and inferred claims remain distinguishable.
Artifact identity, source provenance, and failed attempts remain preserved.
Unsupported, incomplete, unavailable, or uncertain outcomes remain visible.
Validation performed
npx vitest run src/ghidra src/process tests/boundary/providers/ghidra(NODE_OPTIONS=--no-warnings) — 67 files, 1134 tests pass (7 skipped). Without the flag, 7 tests fail only because the sandbox proxy makes Node print a warning into captured child output; the same 7 fail on unchangede5ee3acghidraOomRetention.test.ts— fails one5ee3acand upstream main5d6029e(>8 MiB case reportsexecution_failure), passes herenpm run lint— exit 0;npm run format:check— clean on the branch;npm run docs:check— passnpx tsc --noEmit— pass31935e1: test shards 1–5, Portable tests, Source tests, Build package, Docs Generation pass. Static checks fail ontests/boundary/cli/keyedArchivePrototypeKeyCli.test.ts(from main; upstream main7aa4b98fails the same check), not on files in this PRCompatibility, safety, and release
Author readiness
Human owner: @sx4im
Before merge
type(scope): outcome.🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.