On Wed, Apr 26, 2017 at 05:09:07PM +0800, Xiong Zhou wrote:
> On Tue, Apr 25, 2017 at 02:51:06PM -0600, Ross Zwisler wrote:
<>
> > + /*
> > + * Try and use the mmap to read back the data we just wrote with
> > + * pwrite(). If the kernel bug is present the mapping from the 2MiB
> > + * zero page will still be intact, and we'll read back zeros instead.
> > + */
> > + if (strncmp(buffer, data, strlen(buffer))) {
> > + fprintf(stderr, "strncmp mismatch: '%s' vs '%s'\n", buffer,
> > + data);
> munmap
> close(fd);
> > + exit(1);
> > + }
> > +
> munmap
Yep, thanks, fixed in v3.
