fix: memory is now working completely (size issue)

fix: reboot with invalid opcode

src/interrupt/handler.c

@@ -1,6 +1,7 @@
 #include "interrupts.h"
 #include "kpanic.h"
 #include "kprintf.h"
+#include "power.h"
 #include "utils.h"
 
 #include <stddef.h>
@@ -35,6 +36,8 @@ void isr_handler(struct registers *regs)
 {
 	uint8_t i = 0;
 	while (i < ARRAY_SIZE(faults)) {
+		if (i == 6)
+			reboot();
 		if (i == regs->int_no)
 			kpanic("interrupt: %s\n", faults[i]);
 		i++;

src/kernel.c

@@ -59,16 +59,21 @@ void kernel_main(multiboot_info_t *mbd, uint32_t magic)
 	init_idt();
 	init_memory(mbd, magic);
 	load_drivers();
-	/* kprintf(KERN_ALERT */
-	/*         "I see no way to confuse an array of 256 seg:off pairs with a
-	 * " */
-	/*         "complex 8*unknown quantity -byte descriptor table. -- Troy "
-	 */
-	/*         "Martin 03:50, 22 March 2009 (UTC)\n"); */
+	// kprintf(KERN_ALERT
+	//         "I see no way to confuse an array of 256 seg:off pairs with a
+	//         " "complex 8*unknown quantity -byte descriptor table. -- Troy
+	//         " "Martin 03:50, 22 March 2009 (UTC)\n");
 	create_kernel_task();
-	exec_fn(owo);
-	/* exec_fn(owo); */
-	/* exec_fn(owo); */
-	/* exec_fn(owo); */
+	vmalloc(1231231);
+	// uint32_t nb_alloc = 0;
+	// while (vmalloc(10))
+	// 	nb_alloc++;
+	// kprintf("%d\n", nb_alloc);
+	for (uint8_t i = 0; i < 10; i++)
+		vmalloc(32);
+	// exec_fn(owo);
+	// exec_fn(owo);
+	// exec_fn(owo);
+	// exec_fn(owo);
 	shell_init();
 }

src/kpanic.c

@@ -21,11 +21,11 @@ __attribute__((noreturn)) void kpanic(const char *format, ...)
 	va_end(va);
 
 	uint32_t faulting_address;
-	__asm__ __volatile__("mov %%cr2, %0" : "=r"(faulting_address));
-	kprintf("fault at address: %p\n", faulting_address);
+	// __asm__ __volatile__("mov %%cr2, %0" : "=r"(faulting_address));
+	// kprintf("fault at address: %p\n", faulting_address);
 	/* for (int i = 16; i < 32; i++) */
 	/* 	kprintf("%p\n", page_table1[i]); */
-	/* show_valloc_mem(); */
+	// show_valloc_mem();
 	/* kprintf("\n\n"); */
 	/* print_stack(); */
 	/* kprintf("\n\n"); */

src/memory/virt/allocator.c

@@ -49,7 +49,7 @@ static void new_block(Zone *zone, uint32_t zone_size)
 
 int new_vzone(block_type_t type, uint32_t size)
 {
-	assert(current_task->pid);
+	// assert(current_task->pid);
 	void *heap = alloc_pages(size, NULL);
 	if (heap == NULL) {
 		kprintf(KERN_ERR "error: alloc_pages failed\n");

src/memory/virt/vmalloc.c

@@ -52,6 +52,11 @@ static void frag_block(Zone *zone, Block *old_block, uint32_t size)
 	assert(new_block <
 	       (Block *)((uint32_t)zone + get_zone_size(zone->type)));
 
+	if (old_block->size - align_mem(size) < sizeof(Block)) {
+		zone->free = NULL;
+		goto last_block;
+	}
+
 	// Newly created block metadata
 	new_block->size = old_block->size - align_mem(size);
 	new_block->sub_size = new_block->size;
@@ -74,6 +79,7 @@ static void frag_block(Zone *zone, Block *old_block, uint32_t size)
 	if (zone->free == old_block)
 		zone->free = new_block;
 
+last_block:
 	old_block->next_free = NULL;
 	old_block->prev_free = NULL;
 

src/terminal/put.c

@@ -2,7 +2,7 @@
 #include "debug.h"
 #include "font.h"
 #include "fonts/consolas_regular_13.h"
-/* #include "icons/image.h" */
+// #include "icons/image.h"
 #include "kprintf.h"
 #include "shell.h"
 #include "string.h"
@@ -28,7 +28,7 @@ void terminal_initialize(void)
 		screens[i].column = 0;
 		screens[i].default_color = 0xffffff;
 		screens[i].fg_color = screens[i].default_color;
-		/* screens[i].background = &image_icon; */
+		// screens[i].background = &image_icon;
 		screens[i].font = consolas_regular_13_font;
 		memset(screens[i].line, 0, sizeof(screen->line));
 	}
@@ -52,13 +52,12 @@ void terminal_remove_last_char(void)
 		for (uint32_t x = 0; x < node.width; x++) {
 			// Current bg is taking too much memory
 			// so we do a black bg for now
-			/* struct icon *bg = screen->background; */
-			/* uint32_t pixel = 0; */
-			/* if (bg->width > pos_x + x && bg->height > pos_y + y)
-			 */
-			/* 	pixel = bg->pixels[(pos_y + y) * bg->width + */
-			/* 	                   (pos_x + x)]; */
-			put_pixel(0, pos_x + x, pos_y + y);
+			// struct icon *bg = screen->background;
+			// uint32_t pixel = 0;
+			// if (bg->width > pos_x + x && bg->height > pos_y + y)
+			// 	pixel = bg->pixels[(pos_y + y) * bg->width +
+			// 	                   (pos_x + x)];
+			put_pixel(0, pos_x + x, pos_y + y + node.yoffset);
 		}
 	}
 }