Re: [PATCH v15 00/25] Compile-time stack metadata validation

From: Josh Poimboeuf
Date: Tue Jan 12 2016 - 12:50:44 EST

On Tue, Jan 12, 2016 at 06:17:13PM +0100, Borislav Petkov wrote:
> On Fri, Dec 18, 2015 at 06:39:14AM -0600, Josh Poimboeuf wrote:
> > This is v15 of the compile-time stack metadata validation patch set,
> > along with proposed fixes for many of the warnings it found. It's based
> > on the tip/master branch.
> Ok,
> Reviewed-by: Borislav Petkov <bp@xxxxxxx>

Thanks a lot for your review!

> With it applied, my .config gives ~1000 stacktool warnings.

Hm, that's kind of shocking. Any chance you have CONFIG_GCOV_KERNEL
enabled? I just discovered that it inserts a bunch of unreachable
instructions which causes a lot of stacktool warnings. I need to look
into that.

Otherwise, if you don't have gcov enabled, can you share your .config?