diff --git a/Utilities/StrFmt.h b/Utilities/StrFmt.h
index 903d47dd13..05e98d77da 100644
--- a/Utilities/StrFmt.h
+++ b/Utilities/StrFmt.h
@@ -242,6 +242,17 @@ namespace fmt
 		}
 	};
 
+	template<typename T>
+	struct unveil<le_t<T>, false>
+	{
+		using result_type = typename unveil<T>::result_type;
+
+		force_inline static result_type get_value(const le_t<T>& arg)
+		{
+			return unveil<T>::get_value(arg.value());
+		}
+	};
+
 	template<typename T>
 	force_inline typename unveil<T>::result_type do_unveil(const T& arg)
 	{
diff --git a/Utilities/Thread.cpp b/Utilities/Thread.cpp
index 9f7eb958bf..a39dbe9c2a 100644
--- a/Utilities/Thread.cpp
+++ b/Utilities/Thread.cpp
@@ -109,6 +109,7 @@ enum x64_op_t : u32
 	X64OP_NONE,
 	X64OP_LOAD, // obtain and put the value into x64 register
 	X64OP_STORE, // take the value from x64 register or an immediate and use it
+
 	// example: add eax,[rax] -> X64OP_LOAD_ADD (add the value to x64 register)
 	// example: add [rax],eax -> X64OP_LOAD_ADD_STORE (this will probably never happen for MMIO registers)
 
@@ -116,7 +117,7 @@ enum x64_op_t : u32
 	X64OP_STOS,
 	X64OP_XCHG,
 	X64OP_CMPXCHG,
-	X64OP_LOAD_AND_STORE,
+	X64OP_LOAD_AND_STORE, // lock and [mem],reg
 };
 
 void decode_x64_reg_op(const u8* code, x64_op_t& out_op, x64_reg_t& out_reg, size_t& out_size, size_t& out_length)
diff --git a/rpcs3/Emu/ARMv7/Modules/sceVoice.h b/rpcs3/Emu/ARMv7/Modules/sceVoice.h
index 227cef8615..267ca6e335 100644
--- a/rpcs3/Emu/ARMv7/Modules/sceVoice.h
+++ b/rpcs3/Emu/ARMv7/Modules/sceVoice.h
@@ -79,6 +79,28 @@ struct SceVoiceBasePortInfo
 
 struct SceVoicePortParam
 {
+	// aux structs
+
+	struct _voice_t
+	{
+		le_t<s32> bitrate; // SceVoiceBitRate
+	};
+
+	struct _pcmaudio_t
+	{
+		using _format_t = SceVoicePCMFormat;
+
+		le_t<u32> bufSize;
+		_format_t format;
+	};
+
+	struct _device_t
+	{
+		le_t<u32> playerId;
+	};
+
+	// struct members
+
 	le_t<s32> portType; // SceVoicePortType
 	le_t<u16> threshold;
 	le_t<u16> bMute;
@@ -86,29 +108,9 @@ struct SceVoicePortParam
 
 	union
 	{
-		struct _voice_t
-		{
-			le_t<s32> bitrate; // SceVoiceBitRate
-		};
-
-		_voice_t voice;
-
-		struct _pcmaudio_t
-		{
-			using _format_t = SceVoicePCMFormat;
-
-			le_t<u32> bufSize;
-			_format_t format;
-		};
-		
 		_pcmaudio_t pcmaudio;
-
-		struct _device_t
-		{
-			le_t<u32> playerId;
-		};
-
 		_device_t device;
+		_voice_t voice;
 	};
 };
 
diff --git a/rpcs3/Emu/Cell/PPUThread.cpp b/rpcs3/Emu/Cell/PPUThread.cpp
index 080a692beb..cdcf209efb 100644
--- a/rpcs3/Emu/Cell/PPUThread.cpp
+++ b/rpcs3/Emu/Cell/PPUThread.cpp
@@ -764,9 +764,9 @@ cpu_thread& ppu_thread::args(std::initializer_list<std::string> values)
 
 	assert(argc == 0);
 
-	envp.set(vm::alloc(align(sizeof32(u64), stack_align), vm::main));
+	envp.set(vm::alloc(align(sizeof32(*envp), stack_align), vm::main));
 	*envp = 0;
-	argv.set(vm::alloc(sizeof32(u64) * (u32)values.size(), vm::main));
+	argv.set(vm::alloc(sizeof32(*argv) * (u32)values.size(), vm::main));
 
 	for (auto &arg : values)
 	{
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_cond.cpp b/rpcs3/Emu/SysCalls/lv2/sys_cond.cpp
index b72ebbebc6..581d2cde88 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_cond.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_cond.cpp
@@ -106,7 +106,7 @@ s32 sys_cond_signal_all(u32 cond_id)
 		return CELL_ESRCH;
 	}
 
-	if (const u32 count = cond->waiters.size())
+	if (const u64 count = cond->waiters.size())
 	{
 		cond->signaled += count;
 		cond->waiters.clear();
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_cond.h b/rpcs3/Emu/SysCalls/lv2/sys_cond.h
index c12c5485bb..0bd5e7923e 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_cond.h
+++ b/rpcs3/Emu/SysCalls/lv2/sys_cond.h
@@ -22,7 +22,7 @@ struct lv2_cond_t
 	const u64 name;
 	const std::shared_ptr<lv2_mutex_t> mutex; // associated mutex
 
-	std::atomic<u32> signaled;
+	std::atomic<u64> signaled;
 
 	// TODO: use sleep queue, possibly remove condition variable
 	std::condition_variable cv;
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_event.cpp b/rpcs3/Emu/SysCalls/lv2/sys_event.cpp
index 7a6ab22d41..107e080a86 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_event.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_event.cpp
@@ -118,8 +118,13 @@ s32 sys_event_queue_tryreceive(u32 equeue_id, vm::ptr<sys_event_t> event_array,
 
 	while (!queue->waiters && count < size && queue->events.size())
 	{
+		auto& dest = event_array[count++];
+
 		auto& event = queue->events.front();
-		event_array[count++] = { be_t<u64>::make(event.source), be_t<u64>::make(event.data1), be_t<u64>::make(event.data2), be_t<u64>::make(event.data3) };
+		dest.source = event.source;
+		dest.data1 = event.data1;
+		dest.data2 = event.data2;
+		dest.data3 = event.data3;
 
 		queue->events.pop_front();
 	}
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_lwcond.cpp b/rpcs3/Emu/SysCalls/lv2/sys_lwcond.cpp
index d86f786cda..9a9d9ba87a 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_lwcond.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_lwcond.cpp
@@ -131,7 +131,7 @@ s32 _sys_lwcond_signal_all(u32 lwcond_id, u32 lwmutex_id, u32 mode)
 		sys_lwcond.Error("_sys_lwcond_signal_all(%d): invalid mode (%d)", lwcond_id, mode);
 	}
 
-	const u32 count = cond->waiters.size();
+	const u32 count = (u32)cond->waiters.size();
 
 	if (count)
 	{
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_semaphore.cpp b/rpcs3/Emu/SysCalls/lv2/sys_semaphore.cpp
index a693d7239a..26528daa6b 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_semaphore.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_semaphore.cpp
@@ -43,7 +43,7 @@ s32 sys_semaphore_create(vm::ptr<u32> sem, vm::ptr<sys_semaphore_attribute_t> at
 		return CELL_EINVAL;
 	}
 
-	*sem = Emu.GetIdManager().make<lv2_sema_t>(initial_val, max_val, protocol, attr->name_u64);
+	*sem = Emu.GetIdManager().make<lv2_sema_t>(protocol, max_val, attr->name_u64, initial_val);
 
 	return CELL_OK;
 }
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_timer.cpp b/rpcs3/Emu/SysCalls/lv2/sys_timer.cpp
index 6b214719a8..c9dd634062 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_timer.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_timer.cpp
@@ -72,6 +72,8 @@ s32 sys_timer_destroy(u32 timer_id)
 {
 	sys_timer.Warning("sys_timer_destroy(timer_id=0x%x)", timer_id);
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 
 	if (!timer)
@@ -79,8 +81,6 @@ s32 sys_timer_destroy(u32 timer_id)
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	if (!timer->port.expired())
 	{
 		return CELL_EISCONN;
@@ -88,6 +88,8 @@ s32 sys_timer_destroy(u32 timer_id)
 
 	Emu.GetIdManager().remove<lv2_timer_t>(timer_id);
 
+	lv2_lock.unlock();
+
 	return CELL_OK;
 }
 
@@ -95,6 +97,8 @@ s32 sys_timer_get_information(u32 timer_id, vm::ptr<sys_timer_information_t> inf
 {
 	sys_timer.Warning("sys_timer_get_information(timer_id=0x%x, info=*0x%x)", timer_id, info);
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 
 	if (!timer)
@@ -102,8 +106,6 @@ s32 sys_timer_get_information(u32 timer_id, vm::ptr<sys_timer_information_t> inf
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	info->next_expiration_time = timer->start;
 
 	info->period = timer->period;
@@ -118,6 +120,8 @@ s32 _sys_timer_start(u32 timer_id, u64 base_time, u64 period)
 
 	const u64 start_time = get_system_time();
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 
 	if (!timer)
@@ -125,8 +129,6 @@ s32 _sys_timer_start(u32 timer_id, u64 base_time, u64 period)
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	if (timer->state != SYS_TIMER_STATE_STOP)
 	{
 		return CELL_EBUSY;
@@ -170,6 +172,8 @@ s32 sys_timer_stop(u32 timer_id)
 {
 	sys_timer.Warning("sys_timer_stop()");
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 
 	if (!timer)
@@ -177,8 +181,6 @@ s32 sys_timer_stop(u32 timer_id)
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	timer->state = SYS_TIMER_STATE_STOP; // stop timer
 
 	return CELL_OK;
@@ -188,6 +190,8 @@ s32 sys_timer_connect_event_queue(u32 timer_id, u32 queue_id, u64 name, u64 data
 {
 	sys_timer.Warning("sys_timer_connect_event_queue(timer_id=0x%x, queue_id=0x%x, name=0x%llx, data1=0x%llx, data2=0x%llx)", timer_id, queue_id, name, data1, data2);
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 	const auto queue = Emu.GetIdManager().get<lv2_event_queue_t>(queue_id);
 
@@ -196,8 +200,6 @@ s32 sys_timer_connect_event_queue(u32 timer_id, u32 queue_id, u64 name, u64 data
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	if (!timer->port.expired())
 	{
 		return CELL_EISCONN;
@@ -215,6 +217,8 @@ s32 sys_timer_disconnect_event_queue(u32 timer_id)
 {
 	sys_timer.Warning("sys_timer_disconnect_event_queue(timer_id=0x%x)", timer_id);
 
+	LV2_LOCK;
+
 	const auto timer = Emu.GetIdManager().get<lv2_timer_t>(timer_id);
 
 	if (!timer)
@@ -222,8 +226,6 @@ s32 sys_timer_disconnect_event_queue(u32 timer_id)
 		return CELL_ESRCH;
 	}
 
-	LV2_LOCK;
-
 	if (timer->port.expired())
 	{
 		return CELL_ENOTCONN;
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_timer.h b/rpcs3/Emu/SysCalls/lv2/sys_timer.h
index 5e69d20c88..52d9a9b5f4 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_timer.h
+++ b/rpcs3/Emu/SysCalls/lv2/sys_timer.h
@@ -19,7 +19,6 @@ struct sys_timer_information_t
 	be_t<u32> pad;
 };
 
-// "timer_t" conflicts with some definition
 struct lv2_timer_t
 {
 	std::weak_ptr<lv2_event_queue_t> port; // event queue