lkml.org 
[lkml]   [2007]   [Jun]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [1/2] 2.6.22-rc5: known regressions with patches
On Wed, Jun 20, 2007 at 03:38:06PM -0700, Linus Torvalds wrote:

> And yes, that patch already got merged. However, the patch to *allow*
> Kprobes with DEBUG_RODATA is not, and will not be. It's not a regression,
> and quite frankly, I don't think I would even want that patch.
>
> Kprobes fundamntally disagrees with DEBUG_RODATA, there's no point in
> "working around it". Better just admit it.

Surely the fundamental disagreement is only due to DEBUG_RODATA
covering write-protection of both .text, and .rodata ?
I can see value in having a kernel that supports kprobes, whilst
at the same point, raising red flags if something writes into
a const string. With my distro kernel maintainer hat on, I always
hate these 'pick one' decisions, because I always get convincing
arguments from proponents of both sides.

Was it always this way? I thought DEBUG_RODATA initially just
covered, well.. rodata. And kprobes only wants to change .text
doesn't it ?

Dave

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

\
 
 \ /
  Last update: 2007-06-21 01:11    [W:0.096 / U:0.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site