Added some debugging features

I've tried to track down the bugs with kvm and q35 but I didn't manage
to do it - yet!
I'll probably look into it soon.

1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/features/proc.c b/kernel/features/proc.c
index 48bde72..35c0fa7 100644
--- a/kernel/features/proc.c
+++ b/kernel/features/proc.c
@@ -162,6 +162,8 @@ void proc_yield(struct regs *r)
 void proc_enable_waiting(u32 id, enum proc_wait_type type)
 {
 	struct proc *proc_bak = proc_current();
+	if (!proc_bak)
+		return;
 
 	struct node *iterator = proc_list->head;
 	while (iterator) {