- New spinlock primitive (spinlock.h/.c): CAS on an owner word (core+1),
interrupts masked while any lock is held (state kept in the per-core
block, so release order doesn't matter). Recursion, release-not-held,
held-at-switch and destroyed-while-held are counted and logged, never
silent. Locks are no-ops until the boot core's block is installed
(riscv64's monolithic early boot prints before sk_percpu_boot_init()).
- Kernel locks in a documented order: hermes, switch, registry, doe, log,
console, heap, vmm, pmm. sf_mutex (dict_lock/tuning_lock) uses the same
lock word.
- Hermes: public functions over *_locked internals; never held across the
drain's vm_interpret_kind(); switch notifications after dropping the
lock; event payload moved off static storage. Switch table and registry
never call out while held (slot/entry copied under the lock).
- No lock crosses a switch: checked at context switch (leave, resume) and
the idle point.
- Probe (removed): every lock balances on all three ISAs; 0 held at
switch over 7.5M-51M checks; 0 recursions, 0 bad releases.
- Standard sequence on amd64/aarch64/riscv64: hashes and G byte-identical
to MC-0a, MINT/WIREBIND/USE ok, conservation true, 0 idle growth.
- Block subsystem split out as MC-0b2 (Captain Bob's ruling).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- New sk_percpu_t { self, core_id, current_vm }, reached via GS base
(amd64, %gs:0), TPIDR_EL1 (aarch64), tp (riscv64). Boot core's block is
one static object installed right after arch_early_init(); secondary
cores' blocks come with MC-1.
- switch.c's global g_switch_current_vm is gone; current VM is
sk_percpu()->current_vm, re-read after resume in the context switch.
- Probe (removed): normal path and every heartbeat ISR found core 0's
block on all three ISAs (ISR ok 889/1877/1625, bad 0).
- Standard sequence on amd64/aarch64/riscv64: hashes unchanged from O-C,
G A=40 B=40, MINT/WIREBIND/USE ok, conservation true, 0 idle growth.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- logs/20260925-112529/amd64/: O-D amd64 launch (12345 3 S" amd64" DOE,
rows on), stopped via QMP after 81 min / 131,537 rows with no trial
complete, so the row path could be fixed (row path A ruled).
- FABRIC-3.10.8: Captain Bob, 2026-09-25: "until we close everything, do
not do ant DoE eecution." MC-4's campaigns wait; stage evidence is the
standard sequence plus probes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Captain Bob, 2026-09-25: "pin observr and dynmically utilize worker VM's";
MC-R1..R5 as proposed; MC-R6 changed to start now; O-D relaunches with
row path A (serial-only DoE rows). The amd64 O-D launch was stopped after
81 min / 131,537 rows for this.
- FABRIC-3.10.8: the traced inventory of shared state (kernel subsystems
and the shared VM code -- notably one global dictionary lookup index for
all VMs), and stages MC-0a..MC-4 with evidence named in advance.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
