Red Bear OS — microkernel OS in Rust, based on Redox

Derivative of Redox OS (https://www.redox-os.org) adding: - AMD GPU driver (amdgpu) via LinuxKPI compat layer - ext4 filesystem support (ext4d scheme daemon) - ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG) - Custom branding (hostname, os-release, boot identity) Build system is full upstream Redox with RBOS overlay in local/. Patches for kernel, base, and relibc are symlinked from local/patches/ and protected from make clean/distclean. Custom recipes live in local/recipes/ with symlinks into the recipes/ search path. Build: make all CONFIG_NAME=redbear-full Sync: ./local/scripts/sync-upstream.sh
2026-04-12 19:05:00 +01:00
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+# Bare Metal Test Log — AMD Hardware
+
+Template for recording test results when booting Redox on AMD hardware.
+Fill one section per test run. Date is ISO 8601.
+
+## How to Test
+
+```bash
+# 1. Build the image
+./local/scripts/build-amd.sh
+
+# 2. Burn to USB (DANGEROUS — verify target device!)
+./local/scripts/test-baremetal.sh --device /dev/sdX
+
+# 3. Boot from USB on target hardware
+# 4. Record results below
+```
+
+## Serial Console Setup
+
+For boot debugging, connect a serial console before powering on:
+- Baud rate: 115200
+- Use a USB-to-TTL serial adapter on the motherboard header
+- Or use IPMI/BMC serial-over-LAN if available
+
+---
+
+## Test Run Template
+
+```
+### [DATE] — [HARDWARE MODEL]
+
+**Hardware:**
+- Vendor: 
+- Model: 
+- CPU: (e.g., AMD Ryzen 9 7940HS)
+- GPU: (e.g., AMD Radeon 780M integrated)
+- Motherboard firmware: UEFI / BIOS
+- RAM: (e.g., 32GB DDR5)
+- Storage: (e.g., NVMe SSD)
+
+**Build:**
+- Redox version: (git rev-parse --short HEAD)
+- Config: (e.g., my-amd-desktop)
+- Kernel patch version: (checksum of local/patches/kernel/P0-amd-acpi-x2apic.patch)
+
+**Result:** Booting / Broken / Recommended
+
+**Boot log (serial output):**
+```
+(paste kernel log here, especially ACPI-related lines)
+```
+
+**Observations:**
+- ACPI tables detected: (list any `kernel::acpi` output)
+- APIC mode: xAPIC / x2APIC
+- CPU count: (how many cores detected)
+- Crash location: (if broken, what function/line)
+- Display: VESA / GOP / none
+- Input: PS/2 keyboard / PS/2 mouse / USB / none
+- Network: working / not detected
+- Audio: working / not detected
+
+**Issues:**
+1. (describe any problems)
+```
+
+---
+
+## Test Results
+
+### 2026-04-11 — Framework Laptop 16 (AMD Ryzen 7040)
+
+**Hardware:**
+- Vendor: Framework
+- Model: Laptop 16 (AMD Ryzen 7040 Series)
+- CPU: AMD Ryzen 9 7940HS (13 cores, x2APIC)
+- GPU: AMD Radeon 780M (RDNA3, integrated)
+- Motherboard firmware: UEFI
+- RAM: 32GB DDR5
+- Storage: NVMe SSD
+
+**Build:**
+- Redox version: (pending first test with P0 patches applied)
+- Config: my-amd-desktop
+- Kernel patch: P0-amd-acpi-x2apic.patch (with timeout + SIPI fixes)
+
+**Result:** PENDING TEST
+
+**Known from HARDWARE.md:**
+- Previous status: **Broken** — crash due to unimplemented ACPI function
+- Reference: jackpot51/acpi#3
+- With P0 patches applied, x2APIC should now work; need to verify the specific
+  ACPI function that was missing
+
+---
+
+### 2025-11-09 — Lenovo ThinkCentre M83
+
+**Hardware:**
+- Vendor: Lenovo
+- Model: ThinkCentre M83
+- CPU: (Intel, x86_64)
+- Motherboard firmware: UEFI
+
+**Result:** Broken
+
+**Known issues from HARDWARE.md:**
+- `acpid/src/acpi.rs:256:68: Called Result::unwrap() on an Err value: Aml(NoCurrentOp)`
+- `acpid/src/main.rs:147:39: acpid: failed to daemonize: Error I/O error 5`
+- Display logs offset past left edge of screen
+- `[@hwd:40 ERROR] failed to probe with error No such device (os error 19)`
+
+**Analysis:**
+- AML interpreter hits unsupported opcode (`NoCurrentOp`)
+- This is in the userspace acpid, not the kernel
+- Likely needs AML opcode support added to `aml_physmem.rs` or `acpi.rs`
+
+---
+
+### 2024-09-20 — ASUS PRIME B350M-E (Custom Desktop)
+
+**Hardware:**
+- Vendor: ASUS
+- Model: PRIME B350M-E (custom)
+- CPU: AMD (B350 chipset = Ryzen 1st/2nd gen)
+- Motherboard firmware: UEFI
+
+**Result:** Booting
+
+**Known issues from HARDWARE.md:**
+- Partial PS/2 keyboard support
+- PS/2 mouse broken
+- No GPU acceleration (VESA/GOP only)
+
+**Analysis:**
+- Boots successfully with xAPIC (Ryzen 1000/2000 uses APIC IDs < 255)
+- I2C devices unsupported (touchpad)
+- Good candidate for testing P0 patches (verifies no regression on xAPIC systems)