Red Bear OS 171d8c5258 USB: eliminate all 6 panic!() sites in xhcid hot paths
irq_reactor.rs (4→0):
- EventTrbFuture::poll() on Finished: panic → log::error + Poll::Pending
- next_transfer_event_trb(): panic on invalid TRB type → log::error
- next_command_completion_event_trb(): panic → log::error
- next_misc_event_trb(): panic → log::error

ring.rs (1→0):
- trb_phys_ptr(): panic on out-of-bounds TRB → log::error + return 0

main.rs (1→0):
- feature_info Msi variant mismatch: panic → log::error + fallback to Polling

Rationale: A malformed hardware TRB or transient PCID state inconsistency
must not crash the IRQ reactor thread — these are the highest-risk
single-point failures in the USB hotplug path.  Now degrades gracefully
with error logging and safe fallbacks (zero physical address, Polling
interrupt method, Poll::Pending state).
2026-07-07 17:30:43 +03:00

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.

S
Description
RedBear Operating System, based on RedoxOS. Licenced under MIT license.
https://redbearos.org
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