Files
LithosAnanake/logs
Robert Allan JamesandClaude Sonnet 5 90ee8deb6d
Build / build-amd64-iso (push) Waiting to run
Build / build-aarch64-iso (push) Waiting to run
Build / build-riscv64-img (push) Waiting to run
riscv64: skip satp Bare-mode switch when already Bare (§V.3 item 7 audit fix)
arch_early_init() unconditionally cleared satp on every boot, justified
only by behavior observed under QEMU/EDK2 firmware (satp.MODE=10/Sv57,
kernel identity-mapped within it). That reasoning never applied to the
native U-Boot+OpenSBI boot path, where satp is conventionally already 0
at S-mode handoff -- the unconditional clear was likely a harmless no-op
there, but on an unverified assumption.

Fix: read satp.MODE first and return early when it's already 0 (nothing
to switch away from, no safety argument needed). The unconditional
csrw/sfence pair still runs unchanged for the confirmed QEMU/EDK2 case.
No Sv39/Sv48/Sv57 page-table walker built -- out of proportion to this
finding's severity.

3-arch acceptance: amd64/aarch64 don't compile this file, so their runs
are non-regression on untouched files only. riscv64's own boot log
confirms satp.MODE = 0xa at entry, so the mode != 0 branch ran and
"satp cleared -- Bare mode, explicit" printed exactly as before the fix.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var
2026-09-05 00:17:35 -04:00
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logs/

QEMU acceptance-run history and Tripod smoke-test results.

  • <timestamp>/{amd64,aarch64,riscv64}/ — 255 timestamped three-arch QEMU acceptance run directories, one per invocation of the kernel QEMU acceptance workflow.
  • qemu-screenshot-*.png, qemu-screenshot-*.log, qemu-{amd64,aarch64,riscv64}-*.log, fbtest-console-*.png — loose timestamped QEMU serial captures and framebuffer screenshots from individual manual runs (not part of the timestamped-directory convention above).
  • hermes-tripod-smoke-results.md, hermes-channel-smoke-results.md — captured output from tools/hermes_tripod_smoke.sh and tools/hermes_channel_smoke.sh.
  • hermes-tripod-integration-design.md — design notes for the Tripod integration test.

Note: QEMU_BASELINE.log at the repo root (not in this directory) is the primary kernel regression baseline referenced by .claude/CLAUDE.md; the logs here are supplementary historical captures. See also logs2/ (a separate, flatter QEMU log archive) and experiments/bare_metal/runs/ (DoE-specific run output).