4 files changed, 12 insertions, 3 deletions

diff --git a/src/kernel/mem/alloc.c b/src/kernel/mem/alloc.c
index 42a2f3b..51576bb 100644
--- a/src/kernel/mem/alloc.c
+++ b/src/kernel/mem/alloc.c
@@ -4,6 +4,7 @@
 #include <stdint.h>
 
 static void *highest_page;
+static int malloc_balance = 0;
 
 void mem_init(struct kmain_info *info) {
 	// finds the highest used page, and starts allocating pages above it
@@ -16,6 +17,12 @@ void mem_init(struct kmain_info *info) {
 	highest_page = (void*)(((uintptr_t)highest + PAGE_MASK) & ~PAGE_MASK);
 }
 
+void mem_debugprint(void) {
+	tty_const("malloc balance: ");
+	_tty_var(malloc_balance);
+	tty_const(" ");
+}
+
 void *page_alloc(size_t pages) {
 	void *bottom = highest_page;
 	highest_page += pages * PAGE_SIZE;
@@ -29,10 +36,12 @@ void page_free(void *first, size_t pages) {
 
 
 void *kmalloc(size_t len) {
+	malloc_balance++;
 	// extremely inefficient, but this is only temporary anyways
 	return page_alloc(len / PAGE_SIZE + 1);
 }
 
 void kfree(void *ptr) {
-	// unimplemented
+	if (ptr == NULL) return;
+	malloc_balance--;
 }
diff --git a/src/kernel/mem/alloc.h b/src/kernel/mem/alloc.h
index 571b289..4f45520 100644
--- a/src/kernel/mem/alloc.h
+++ b/src/kernel/mem/alloc.h
@@ -4,6 +4,7 @@
 #include <stddef.h>
 
 void mem_init(struct kmain_info *);
+void mem_debugprint(void);
 
 // allocates `pages` consecutive pages
 void *page_alloc(size_t pages);
diff --git a/src/kernel/proc.c b/src/kernel/proc.c
index 9a38881..39b4fb0 100644
--- a/src/kernel/proc.c
+++ b/src/kernel/proc.c
@@ -66,7 +66,7 @@ _Noreturn void process_switch_any(void) {
 	if (found)
 		process_switch(found);
 
-	tty_const(" no running processes left...");
+	mem_debugprint();
 	panic();
 }
 
diff --git a/src/kernel/vfs/request.c b/src/kernel/vfs/request.c
index 46c52b8..2fd4689 100644
--- a/src/kernel/vfs/request.c
+++ b/src/kernel/vfs/request.c
@@ -102,6 +102,5 @@ int vfs_request_finish(struct vfs_request *req, int ret) {
 
 	req->caller->state = PS_RUNNING;
 	regs_savereturn(&req->caller->regs, ret);
-	kfree(req);
 	return ret;
 }