From 72f8138ca1c40b3db630fa63ccf213eb3ce5f878 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Sun, 25 Aug 2024 15:29:05 +0300
Subject: [PATCH] Kernel: Disable scheduler load balancing until I get it fixed

Scheduler keeps crashing all the time when running on multiple cores.
This patch disabled the load balancer, which seems to get rid of most
scheduler crashes.
---
 kernel/kernel/Scheduler.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/kernel/Scheduler.cpp b/kernel/kernel/Scheduler.cpp
index 11f34ae5..7c52c7dc 100644
--- a/kernel/kernel/Scheduler.cpp
+++ b/kernel/kernel/Scheduler.cpp
@@ -8,6 +8,7 @@
 
 #define DEBUG_SCHEDULER 0
 #define SCHEDULER_ASSERT 1
+#define SCHEDULER_LOAD_BALANCE 0
 
 #if SCHEDULER_ASSERT == 0
 #undef ASSERT
@@ -295,8 +296,9 @@ namespace Kernel
 	{
 		ASSERT(Processor::get_interrupt_state() == InterruptState::Disabled);
 
-		if (Processor::is_smp_enabled())
-			do_load_balancing();
+		if constexpr(SCHEDULER_LOAD_BALANCE)
+			if (Processor::is_smp_enabled())
+				do_load_balancing();
 
 		{
 			const uint64_t current_ns = SystemTimer::get().ns_since_boot();
@@ -386,6 +388,7 @@ namespace Kernel
 		return least_loaded_id;
 	}
 
+#if SCHEDULER_LOAD_BALANCE
 	void Scheduler::do_load_balancing()
 	{
 		ASSERT(Processor::get_interrupt_state() == InterruptState::Disabled);
@@ -563,6 +566,7 @@ namespace Kernel
 
 		m_last_load_balance_ns += s_load_balance_interval_ns;
 	}
+#endif
 
 	BAN::ErrorOr<void> Scheduler::add_thread(Thread* thread)
 	{