This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
Re: [RFC] Support for KASLR
- From: fche at redhat dot com (Frank Ch. Eigler)
- To: Torsten Polle <Torsten dot Polle at gmx dot de>
- Cc: systemtap at sourceware dot org
- Date: Tue, 20 Mar 2018 09:22:12 -0400
- Subject: Re: [RFC] Support for KASLR
- References: <267B25CA-E383-483E-A048-63E1C43A309D@gmx.de>
Hi, Torsten -
> [...]
> I’ve a kernel with the configuration option CONFIG_RANDOMIZE_BASE
> set. The backtrace fails for the kernel. The patch tries to address
> this issue. [...]
> _stext.
It would surprise for systemtap to need this sort of thing now. KASLR
is a years-old technique, and CONFIG_RANDOMIZE_BASE has been default for
most of that time. We routinely relocate our internal kernel
symbol/unwind info with respect to the same _stext symbol. I wonder
what is going on.
- FChE