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kernel: Fix current_process race 

TSan reported a race at :258 and :803, so make current_process an atomic
pointer.
This commit is contained in:
lat9nq 2022-04-01 18:32:20 -04:00
parent 83b86d915a
commit 5b5a1b7fa7
1 changed files with 4 additions and 4 deletions
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8
src/core/hle/kernel/kernel.cpp
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@ -84,7 +84,7 @@ struct KernelCore::Impl {
void InitializeCores() { void InitializeCores() {
for (u32 core_id = 0; core_id < Core::Hardware::NUM_CPU_CORES; core_id++) { for (u32 core_id = 0; core_id < Core::Hardware::NUM_CPU_CORES; core_id++) {
cores[core_id].Initialize(current_process->Is64BitProcess()); cores[core_id].Initialize((*current_process).Is64BitProcess());
system.Memory().SetCurrentPageTable(*current_process, core_id); system.Memory().SetCurrentPageTable(*current_process, core_id);
} }
} }
@ -167,11 +167,11 @@ struct KernelCore::Impl {
// Shutdown all processes. // Shutdown all processes.
if (current_process) { if (current_process) {
current_process->Finalize(); (*current_process).Finalize();
// current_process->Close(); // current_process->Close();
// TODO: The current process should be destroyed based on accurate ref counting after // TODO: The current process should be destroyed based on accurate ref counting after
// calling Close(). Adding a manual Destroy() call instead to avoid a memory leak. // calling Close(). Adding a manual Destroy() call instead to avoid a memory leak.
current_process->Destroy(); (*current_process).Destroy();
current_process = nullptr; current_process = nullptr;
} }
@ -697,7 +697,7 @@ struct KernelCore::Impl {
// Lists all processes that exist in the current session. // Lists all processes that exist in the current session.
std::vector<KProcess*> process_list; std::vector<KProcess*> process_list;
KProcess* current_process{}; std::atomic<KProcess*> current_process{};
std::unique_ptr<Kernel::GlobalSchedulerContext> global_scheduler_context; std::unique_ptr<Kernel::GlobalSchedulerContext> global_scheduler_context;
Kernel::TimeManager time_manager; Kernel::TimeManager time_manager;