From 5224cc49c4daa8d20999bad15a9b16d8d16b9d10 Mon Sep 17 00:00:00 2001 From: Subv Date: Sun, 12 Aug 2018 16:35:27 -0500 Subject: Kernel/Mutex: Don't duplicate threads in the mutex waiter list. Exit from AddMutexWaiter early if the thread is already waiting for a mutex owned by the owner thread. This accounts for the possibility of a thread that is waiting on a condition variable being awakened twice in a row. Also added more validation asserts. This should fix one of the random crashes in Breath Of The Wild. --- src/core/hle/kernel/svc.cpp | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'src/core/hle/kernel/svc.cpp') diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 5db2db687..5818cc06d 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -706,8 +706,7 @@ static ResultCode SignalProcessWideKey(VAddr condition_variable_addr, s32 target Handle owner_handle = static_cast(mutex_val & Mutex::MutexOwnerMask); auto owner = g_handle_table.Get(owner_handle); ASSERT(owner); - ASSERT(thread->status != ThreadStatus::Running); - thread->status = ThreadStatus::WaitMutex; + ASSERT(thread->status == ThreadStatus::WaitMutex); thread->wakeup_callback = nullptr; owner->AddMutexWaiter(thread); -- cgit v1.2.3