Re: [RFC] a prototype checkpoint-restart using core files

[Daniel Jacobowitz <drow@false.org>]

On Mon, Nov 07, 2005 at 09:21:36PM +0100, Mark Kettenis wrote:
> > Date: Mon, 7 Nov 2005 14:07:24 -0500
> > From: Daniel Jacobowitz <drow@false.org>
> > 
> > > If I read the code correctly, there is one rather serious limitation
> > > though: restoring mmapped area's will fail if the same area isn't
> > > mapped in the target process.  Especially on systems that randomize
> > > the location of mmapped memory this will make the usefullness of this
> > > feature pretty limited :(.
> > 
> > Why should it?  The expected use is to restore these dumps into the
> > same running session - just after stepping a bit.  So unless you step
> > across a very large free(), it should be fine.
> 
> Ah, somehow I forgar about the "same running session" part.  Guess
> that's one of the things that needs to be clearly documented then ;-).

Yeah - a general purpose "restore core file" command would be neat, but
I think, not practical enough to be useful.

-- 
Daniel Jacobowitz
CodeSourcery, LLC