Red Bear OS
b906ad688a
Closes the v4.0 plan P3 'acpid pci_fd is not registered' item.
Two related defects:
1. scheme.rs::on_sendfd had a one-shot EINVAL when self.pci_fd was
already Some. Combined with the lazy AML context init in
AcpiContext::aml_symbols, this created a permanent failure mode:
- pcid starts AFTER acpid (per the requires_weak chain)
- if a /scheme/acpi/symbols request arrives before pcid's sendfd
reaches acpid, the aml init runs with pci_fd = None and logs
'pci_fd is not registered' at error level
- the resulting aml_context state makes subsequent retries fail
the same way; the next pcid sendfd hits the one-shot EINVAL and
is rejected
- aml stays broken for the entire boot
Fix: allow replacement (warn-and-replace on subsequent sendfd).
Document the bug history inline so a future agent does not 'clean
up' the warn log.
2. aml_physmem.rs::AmlPhysMemHandler::new logged the missing fd at
log::error. Downgrade to log::warn -- the deferred-init path is
normal during the acpid-then-pcid ordering window and an error
level is misleading.
3. scheme.rs::on_sendfd now eagerly calls self.ctx.aml_symbols()
after setting pci_fd, so the symbol cache is built immediately
rather than on the first consumer request. The error path logs
at error level (with Debug-formatted detail because AmlError
does not implement Display), making the failure observable
rather than silently deferred.
Test note: cargo test -p acpid fails to link on the host because
libredox's redox_munmap_v1 is target-only; this is pre-existing
and unrelated to this change. cargo check -p acpid is clean.
Base
Repository containing various system daemons, that are considered fundamental for the OS.
You can see what each component does in the following list:
- audiod : Daemon used to process the sound drivers audio
- bootstrap : First code that the kernel executes, responsible for spawning the init daemon
- daemon : Redox daemon library
- drivers
- init : Daemon used to start most system components and programs
- initfs : Filesystem with the necessary system components to run RedoxFS
- ipcd : Daemon used for inter-process communication
- logd : Daemon used to log system components and daemons
- netstack : Daemon used for networking
- ptyd : Daemon used for pseudo-terminal
- ramfs : RAM filesystem
- randd : Daemon used for random number generation
- zerod : Daemon used to discard all writes and fill read buffers with zero
How To Contribute
To learn how to contribute you need to read the following document:
If you want to contribute to drivers read its README
Development
To learn how to do development with these system components inside the Redox build system you need to read the Build System and Coding and Building pages.
How To Build
It is recommended to build this system component via the Redox build system, you can learn how to do it on the Building Redox page.
To build and test outside the build system, install redoxer then use check.sh script to build or test:
./check.sh- Check build for x86_64./check.sh --arch=ARCH- Check build for specific ARCH (aarch64,i586,riscv64gc)./check.sh --all- Check build for all ARCH./check.sh --test- Check the base system boots up on x86_64
You can also use make install to inspect the content on ./sysroot, or make test-gui to test booting with orbital interactively.