========================================
  frostbyte kernel  x86_64  long mode
  multiboot2 / grub / freestanding gcc
========================================

[boot] multiboot2 magic verified (36d76289)
[gdt]  loaded flat 64-bit segments
[idt]  256 vectors installed (32 exceptions, 16 irqs)
[pic]  remapped to 0x20-0x2f, irq0 and irq1 unmasked
[pmm]  130559 KiB usable, 32736 frames, 32463 free after kernel
[heap] bump allocator at 0x0000000000111000, 8192 KiB
[paging] mapped 0x0000000040000000 -> phys 911000, readback OK
[pit]  timer at 100 Hz
[kbd]  ps/2 keyboard driver ready
[sched] 4 threads: idle, shell, workerA, workerB

[boot] enabling interrupts, starting preemptive scheduler
[boot] workerA/workerB log from separate stacks to prove round-robin


frostbyte shell ready. type 'help'.
frostbyte> [workerA] tick=50 iterations=8650613
[workerB] tick=91 iterations=15943273
[workerA] tick=150 iterations=29911570
[workerB] tick=191 iterations=34964279
[workerA] tick=250 iterations=47022830
[workerB] tick=291 iterations=48940017
[workerA] tick=350 iterations=60766070