Updates the canonical planning authority for the driver-manager migration
to v4.4, which closes the remaining boot-log noise items
identified during a real QEMU boot:
- initfs sidecar-IPC ENODEV warning: detect initfs mode and skip
UnixStream::pair() (the initfs kernel namespace does not support
AF_UNIX socketpair and the initfs driver-manager is transient).
- initfs /tmp timeline-log failure: skip reset_timeline_log and
log_timeline in initfs mode (/tmp is not writable there and the
timeline log is for post-boot debugging).
- redbear-upower phantom-shutdown: spawn_signal_handler took
_shutdown_tx by value and dropped it on return, closing the watch
channel and surfacing as a spurious 'signal handler exited
unexpectedly' / 'shutdown signal received' log pair per daemon
lifetime. Fix: pass shutdown_tx.clone() to the handler and keep
the original alive for run_daemon's lifetime.
- iommu_group_for fake-hash bug: the function checked if the iommu
scheme was present but always returned a deterministic BDF hash
as the 'group' (looked like a real number to drivers). Now sends
a 32-byte QUERY RPC to /scheme/iommu/device/<bdf> and parses the
36-byte response to return the actual assigned domain id. Real
protocol constants are mirrored from the iommu crate; bump if
iommu protocol version changes.
- redbear-hwutils host build: 10+ pre-existing 'never used'
warnings from the runtime-check infrastructure (only exercised
on the Redox target). Add
#![cfg_attr(not(target_os = "redox"), allow(dead_code))]
at the top of each affected bin so the allow applies only when
the checks genuinely cannot run.
Status table: v4.4 closes the last boot-noise issues from the v4.3
status. Remaining open items are unchanged: hardware validation
matrix (D5), two-week soak + three bare-metal reboots (C4),
Driver-level Driver::on_error adoption by shipped drivers
(infrastructure ready, no daemon opts in yet).
Last reviewed line updated to 2026-07-24 (v4.4).
vasilito
46621ece97