mirror of
https://github.com/skyline-emu/skyline.git
synced 2024-12-27 16:05:29 +03:00
c282276b74
The following scheduler bugs were fixed: * It was assumed that all non-cooperative `Rotate` calls were from a preemptive yield and changed the state of `KThread::isPreempted` incorrectly which could lead to UB, an example of a scenario with it would be: * * Preemptive thread A gets a signal to yield from cooperative thread B due to it being ready to schedule and higher priority * * A complies with this request but there's an assumption that the signal was actually from it's preemption timer therefore it doesn't reset it (As it isn't required if the timer was responsible for the signal) * * A receives the actual preemption signal a while later, causing UB as the signal handler is invoked twice * `Scheduler::UpdatePriority` * * A check for `currentIt == core->queue.begin()` existed which caused an incorrect early return * * The preemption timer was armed correctly when a priority transition from cooperative priority -> preemption priority occurred but not disarmed when a transition from preemption priority -> cooperative priority occurred * * The timer was unnecessarily disarmed in the case of updating the priority of a non-running thread, this isn't as much a bug as it is just pointless * Priority inheritance in `KProcess::MutexLock` is fundamentally broken as it performs UB with `waitThread` being accessed prior to being assigned * When a thread sets its own priority using `SvcSetThreadCoreMask` and its current core is no longer in the affinity mask, it wouldn't actually move to the new thread until the next time the thread is load balanced |
||
|---|---|---|
| .. | ||
| libraries | ||
| src/main | ||
| .gitignore | ||
| build.gradle | ||
| CMakeLists.txt | ||
| proguard-rules.pro | ||