lkml.org 
[lkml]   [2014]   [Apr]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: new module to check constant memory for corruption
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



\
 
 \ /
  Last update: 2014-04-14 17:21    [W:0.045 / U:1.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site