Robert Allan JamesandClaude Sonnet 5
dd09de65f5
Follow-up probing narrowed Finding 3's behavior (inconsistent stall point run-to-run: sometimes reaches iters=1000/delta=951 before stopping, sometimes never gets past iters=0 even after a 400-second bounded wait) but didn't pin the mechanism. Tested the strongest available hypothesis: single-threaded TCG scheduling starvation from an -O2-tightened spin loop, based on a real precedent -- calibrate_apic_timer() (apic.c) already calls arch_relax() every iteration of its own spin-wait; calibrate_tsc_with_pmtimer() never had it. Added the same call, matching that precedent exactly. Result: no change, same exact stall point on a fresh 60-second bounded wait. Reverted. Stopping here per this document's own §25.0 rule 5 -- root-causing further needs either deeper TCG/QEMU internals knowledge or a different diagnostic approach (host-side instrumentation) than another guess-and-check pass. Makefile.starkernel and timer.c both back to committed -O0 state, confirmed booting clean. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2.9 KiB
2.9 KiB
StarKernel UEFI Loader
Loading kernel from ESP...
[CKPT 001] Entered efi_main - ConOut live
RAW SERIAL UP
[CKPT 002] Serial (COM1) initialized
Monolithic build - kernel linked directly
Collecting boot information...
CmdLine: parsed OK
[CKPT 004] Command line parsed
[CKPT 005] Kernel stack allocation decided
[CKPT 006] Boot info collected (ACPI table located)
GOP: linear framebuffer found
[CKPT 007] GOP: linear framebuffer found
[CKPT 008] About to enter ExitBootServices retry loop
EBS...
EBS OK
Calling kernel_main (monolithic)...
_____ _ _ __ _
/ ____| | | |/ / | |
| (___ | |_ __ _ _ __| ' / ___ _ __ _ __ ___| |
\___ \| __/ _` | '__| < / _ \ '__| '_ \ / _ \ |
____) | || (_| | | | . \ __/ | | | | | __/ |
|_____/ \__\__,_|_| |_|\_\___|_| |_| |_|\___|_|
LithosAnanke v1.5.4
Architecture: amd64
Build: Aug 11 2026 11:20:23
UEFI BootServices: EXITED
=== StarKernel Boot Information ===
Memory map entries: 113
Total memory: 1023 MB
Usable memory: 967 MB
===================================
PMM initialized.
PMM statistics:
Total pages: 248976
Free pages : 247453
Used pages : 1523
Total MB : 972
Free MB : 966
Used MB : 5
VMM initialized (mapped RAM, CR3 switched)
VMM initialized (mapped RAM, CR3 switched)
VMM self-test: mapped OK at 0xffff800000000000
VMM self-test complete.
IDT installed.
APIC: init...
APIC: IA32_APIC_BASE MSR=0x00000000fee00900
APIC: stale-ISR drain: 0 EOI(s) issued
APIC: initialized (xAPIC MMIO, TPR=0, SIVR=0x1FF, EOI-clear)
APIC: init done
I/O APIC: init...
I/O APIC: base=0xfec00000, gsi_base=0, overrides=5
override: source=00 gsi=2 flags=0x0000
override: source=05 gsi=5 flags=0x000d
override: source=09 gsi=9 flags=0x000d
override: source=0a gsi=10 flags=0x000d
override: source=0b gsi=11 flags=0x000d
i8042: keyboard ACKed enable-scanning
i8042: IRQ1 enabled in controller config byte
I/O APIC: keyboard IRQ1 routed (masked)
Timer: init...
Timer: init start
Timer: PM_TMR_BLK discovered from FADT at port 1544
Timer: VM mode detected (hypervisor present).
Timer: HPET calibration disabled (VM-exit MMIO would poison timing).
Timer: WARNING: invariant TSC not present under hypervisor.
Timer: continuing in RELATIVE mode (no determinism guarantees).
Timer: RDTSCP not present; using RDTSC (less serialized).
Timer: CPUID frequency unavailable; trying PM Timer...
PMPROBE-far iters=0 delta=65 tsc_elapsed=90510