Qemu crashing; troubleshooting

src/kernel/drivers/pci.c

@@ -86,6 +86,7 @@ void pci_make_file(uint32_t class, uint8_t bus, uint8_t slot, uint8_t func){
         file = fcreate(cpy, 0);
         // file->read = pci_read_file;
         // file->write = pci_write_file;
+        if(file == 0) continue;
         file->fileops = &pci_fileops;
         if(tries >= 254){
             mlog(MODULE_NAME, "Failed to make PCI file for device!\n", MLOG_PRINT);

src/kernel/kmain.c

@@ -58,16 +58,18 @@ extern void kmain(kernel_info_t *kernel_info){
     pic_setmask(0x0, PIC1_DATA);
     pic_setmask(0x0, PIC2_DATA);
     
-    fcreate("/dev", FS_FILE_IS_DIR);
-    fcreate("/dev/disk", FS_FILE_IS_DIR);
-    fcreate("/tmp", FS_FILE_IS_DIR);
-    fcreate("/boot", FS_FILE_IS_DIR);
+    // fcreate("/dev", FS_FILE_IS_DIR);
+    // fcreate("/dev/disk", FS_FILE_IS_DIR);
+    // fcreate("/tmp", FS_FILE_IS_DIR);
+    // fcreate("/boot", FS_FILE_IS_DIR);
     mlog("KERNEL", "Initializing Scheduler & starting PID 1\n", MLOG_PRINT);
     boot_info = kernel_info;
     scheduler_init();
+    disable_interrupts();
     //scheduler doesn't work if there is no PID0, and I don't know why.
     thread_start(pid0);
     thread_start(sysinit);
+    for(;;);
     enable_interrupts();
     for(;;);//we actually **shouldn't** return, like, ever. That's bad.
     return;

src/kernel/system/modules.c

@@ -97,7 +97,8 @@ uint32_t module_api(uint32_t func, ...){
             buffer = va_arg(vars, void *);
             offset = va_arg(vars, uint32_t);
             count = va_arg(vars, uint32_t);
-            return_value = readdir(file, buffer, offset, count);
+            // return_value = readdir(file, buffer, offset, count);
+            return_value = 0;
             break;
         case MODULE_API_MAP:
             return_value = 0;

src/kernel/system/ramfs.c

@@ -23,10 +23,15 @@ void ramfs_init(){
     mlog(MODULE_NAME, "Initializing VFS\n", MLOG_PRINT);
     root_dir.private = kmalloc(1);
     root_dir.size = PAGE_SIZE_BYTES;//one page is 4096 bytes
+    // printf("Sizeof VFILE_T: %d", sizeof(vfile_t));
 }
 
-vfile_t *resolve_path(char *pathname){
+//resolves the path relative to start
+vfile_t *resolve_path(char *pathname, vfile_t *start){
+    // vfile_t **buffer = (vfile_t *)start->private;
+    // for(int i = 0; i < start->size/4, i++){
         
+    // }
 }
 
 vfile_t *ramfs_create(char *path, FS_FILE_FLAGS flags){

src/kernel/system/vfs.h

@@ -32,7 +32,7 @@ typedef struct virtual_file{
     
     uint32_t id;//for use in drivers
     void *private; //also for use in drivers
-    uint32_t size;
+    uint32_t size; //should be in bytes
     uint32_t offset; //for use in drivers
     
 }vfile_t;
@@ -46,5 +46,5 @@ int fread(vfile_t *file_entry, void *byte_array, uint32_t offset, uint32_t count
 
 vfile_t *vfcreate(vfile_t *parent, char *relpath, FS_FILE_FLAGS flags);
 vfile_t *rfopen(char *name, vfile_t *dir);
-
+vfile_t *fclose(vfile_t *);
 vfile_t *fopen(char *path);