GKaszewski/k-os
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fix: sched round-robin, cap slot OOB panic, clippy, make ci

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- RunList -> intrusive FIFO, no starvation, no silent drop
- cap table sized to CapSlot range (kani caught OOB panic)
- snake food color test uses const
- kani cfg lint, RUST_MIN_STACK for big kernel struct in tests
This commit is contained in:
Gabriel Kaszewski
2026-10-26 19:08:30 +01:00
parent 1c04ddf909
commit e931485ca7
32 changed files with 384 additions and 251 deletions
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51
crates/kernel/src/lib.rs
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@@ -196,20 +196,20 @@ impl<P: Platform> Kernel<P> {
if current == tid {
return;
}
if let Ok(t) = self.threads.get_mut(current) {
if matches!(t.state(), ThreadState::Running(_)) {
let priority = t.priority();
let _ = t.preempt();
self.scheduler.add(current, priority, core);
}
if let Ok(t) = self.threads.get_mut(current)
&& matches!(t.state(), ThreadState::Running(_))
{
let priority = t.priority();
let _ = t.preempt();
self.scheduler.add(current, priority, core);
}
}
if let Ok(t) = self.threads.get(tid) {
if matches!(t.state(), ThreadState::Ready) {
self.scheduler.next(core);
let _ = self.threads.get_mut(tid).map(|t| t.set_running(core));
}
if let Ok(t) = self.threads.get(tid)
&& matches!(t.state(), ThreadState::Ready)
{
self.scheduler.next(core);
let _ = self.threads.get_mut(tid).map(|t| t.set_running(core));
}
}
@@ -265,26 +265,19 @@ impl<P: Platform> Kernel<P> {
pub(crate) fn cleanup_threads(&mut self, thread_ids: &[Option<ThreadId>]) {
use domain::scheduler::Scheduler;
for slot in thread_ids {
if let Some(tid) = slot {
self.endpoints.remove_thread_from_all(*tid);
self.cleanup_wait_any(*tid);
self.scheduler.remove(*tid);
self.pending_messages[tid.raw() as usize] = None;
self.pending_results[tid.raw() as usize] = None;
let _ = self.threads.destroy(*tid);
}
for tid in thread_ids.iter().flatten() {
self.endpoints.remove_thread_from_all(*tid);
self.cleanup_wait_any(*tid);
self.scheduler.remove(*tid);
self.pending_messages[tid.raw() as usize] = None;
self.pending_results[tid.raw() as usize] = None;
let _ = self.threads.destroy(*tid);
}
}
pub(crate) fn cleanup_wait_any(&mut self, tid: ThreadId) {
if let Some(wait_set) = self.wait_sets[tid.raw() as usize].take() {
for ep_slot in wait_set.endpoints() {
if let Some(_slot) = ep_slot {
self.endpoints.remove_thread_from_all(tid);
break;
}
}
if self.wait_sets[tid.raw() as usize].take().is_some() {
self.endpoints.remove_thread_from_all(tid);
}
}
@@ -312,12 +305,12 @@ impl<P: Platform> Kernel<P> {
.endpoints
.get(*id)
.map(|ep| *ep.generation())
.unwrap_or_else(|| Generation::initial()),
.unwrap_or_else(Generation::initial),
Resource::Memory(id) => self
.regions
.get(*id)
.map(|r| *r.generation())
.unwrap_or_else(|| Generation::initial()),
.unwrap_or_else(Generation::initial),
_ => Generation::initial(),
}
}