> For the complete documentation index, see [llms.txt](https://oscourse-tsinghua.gitbook.io/ucore-analysis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://oscourse-tsinghua.gitbook.io/ucore-analysis/ucore/user/faultread_c.md).

# faultread.c

```c
#include <stdio.h>
#include <ulib.h>

int
main(void) {
    cprintf("I read %8x from 0.\n", *(unsigned int *)0);
    panic("FAIL: T.T\n");
}
```