Known Limitations

SlopOS is a QEMU-first research and development OS. These are important current limits.

Runtime

• Real hardware boot is not the supported target.
• QEMU q35, OVMF, HPET, LAPIC, IOAPIC, and MSI/MSI-X are expected.
• Legacy PIC and legacy VirtIO interrupt modes are not the supported path.
• Display behavior is framebuffer/compositor oriented, not GPU-accelerated desktop hardware support.

Kernel And ABI

• Syscall coverage is POSIX-inspired, not complete POSIX or Linux parity.
• Syscall numbers are stable once assigned; SlopOS is pre-alpha.
• SlopRing does not aim for full Linux io_uring feature parity.
• Some SlopRing and TCP zero-copy runtime atomics are audited rather than machine-checked.
• Verification covers selected critical logic, not the whole kernel.

Filesystem And Storage

• ext2 is the primary persistent filesystem.
• Journaling filesystems, package management, and robust crash recovery are not current public guarantees.
• The test harness uses a scratch VirtIO disk for destructive block tests.

Networking

• The stack supports real TCP/UDP workflows. It is a small OS network stack, not a production hardened Internet stack.
• QEMU user networking is the normal development path.

Project Docs

Source repo plans are working notes or historical records unless they are explicitly promoted into these docs. Treat this documentation site as the public documentation surface.