Re: new module to check constant memory for corruption

[Jiri Kosina]

On Sun, 13 Apr 2014, Richard Weinberger wrote:

> > Hi Richard,
> > 
> > I updated my code and check for ftrace (cat /proc/sys/kernel/ftrace_enabled > 0).
> > http://tauruz.homeip.net/ramcheck.tgz
> > 
> > On a 24/7 server ftrace is not a common thing anyway.
> 
> I disagree with you.
> perf, systemtap and other tools are widely used on "24/7" servers.

Plus the self-modifying code is present in other parts of kernel that have 
nothing to do with tracing as well. Consider static keys for example; they 
are used heavily in networking stack, scheduler code, etc.

-- 
Jiri Kosina
SUSE Labs

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/