feat: unified boot + kthread tests for x86_64 and ARM64 #186
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Replace brittle serial-marker-matching CI with an in-memory result table that the kernel populates during boot. The host extracts results via QMP pmemsave, producing reliable, timing-independent test results. Kernel-side (btrt feature flag): - BTRT data structures: header + 512-entry table in BSS (#[no_mangle]) - Test catalog with 33 milestones across x86_64 and ARM64 boot paths - KTAP-formatted serial output for human-readable results - Instrumentation at key boot milestones in main.rs and main_aarch64.rs - Page-table-walking virt_to_phys on x86_64, HHDM subtraction on ARM64 - Tracing counters for boot test pass/fail/skip totals - Boot test tracing provider (temporarily disabled pending integration) Host-side (xtask): - QMP client for QEMU machine protocol over Unix socket - Binary BTRT parser with magic validation and result extraction - boot-test-btrt command: build, launch QEMU, wait for sentinel, extract - Parallel support for both x86_64 and ARM64 architectures run.sh integration: - --btrt flag delegates to xtask boot-test-btrt - Works with --x86 (x86_64) and default (ARM64) Verified: x86_64 16/16 pass, ARM64 13/13 pass, zero warnings. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add cross-architecture kthread tests, ARM64 QEMU exit, unified xtask commands, and BTRT finalization fallback: - Implement ARM64 exit_qemu() via PSCI SYSTEM_OFF (HVC #0) - Extract kthread tests into shared task/kthread_tests.rs module using arch-generic halt/interrupt wrappers - Add kthread test calls + kthread_test_only exit path to ARM64 entry - Add `cargo run -p xtask -- kthread-test --arch x86_64|arm64` command - Add `cargo run -p xtask -- boot-test-btrt` grace period fallback: extracts BTRT results after 120s even if stuck processes prevent BTRT_READY sentinel (handles both stale and noisy serial output) - Make btrt::finalize() idempotent with AtomicBool guard - Add fallback BTRT finalize in sys_exit when no userspace threads remain - Add breenix> shell prompt validation in boot_test_btrt - Expand BTRT test catalog with full userspace test coverage - Add per-process BTRT registration in test_exec.rs Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary
exit_qemu()via PSCI SYSTEM_OFF so kthread tests can cleanly exit QEMU on ARM64task/kthread_tests.rsusing arch-generic wrappers (both x86_64 and ARM64 pass)kthread-testandboot-test-btrtxtask commands with--arch x86_64|arm64===BTRT_READY===btrt::finalize()idempotent; add fallback finalize when last userspace thread exitsbreenix>shell prompt validation in boot_test_btrtTest Results
Test failures are pre-existing functional issues (fs_write, cloexec, waitpid, etc.), not infrastructure problems. Both architectures now produce structured BTRT results reliably.
Test plan
cargo run -p xtask -- kthread-test --arch x86_64— PASScargo run -p xtask -- kthread-test --arch arm64— PASScargo run -p xtask -- boot-test-btrt --arch arm64— extracts results, shell prompt validatedcargo run -p xtask -- boot-test-btrt --arch x86_64— extracts results via grace period fallback🤖 Generated with Claude Code