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Subject: Re: [PATCH] Read only syscall tables for x86_64 and i386
From: Arjan van de Ven <arjan@infradead.org>
To: Jeremy Maitin-Shepard <jbms@cmu.edu>
Cc: Christoph Lameter <christoph@lameter.com>, linux-kernel@vger.kernel.org
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Date: Tue, 28 Jun 2005 21:47:48 +0200
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On Tue, 2005-06-28 at 15:27 -0400, Jeremy Maitin-Shepard wrote:
> Christoph Lameter <christoph@lameter.com> writes:
> 
> > On Tue, 28 Jun 2005, Jeremy Maitin-Shepard wrote:
> >> As I mentioned previously when this patch was first posted to the list,
> >> AFS writes to the syscall table.  It does this even for Linux 2.6.
> >> Apparently, the rodata section is not actually mapped read-only, so this
> >> patch will probably not break AFS; nonetheless, it seems it would still
> >> be better to keep the syscall table in a section that is supposed to be
> >> writable.
> 
> > Maybe this needs to be fixed?
> 
> It would probably be better implemented with a more generic mechanism,
> but I don't believe anyone is working on that now, so it looks like AFS
> will continue to use a special syscall.

the kernel afs doesnt' seem to need a special syscall....