Re: [Vserver] [RFC][PATCH 0/9] separate internal kernel pids from userspace ones

From: Dave Hansen <>
Date: Tue 25 Oct 2005 - 08:25:16 BST
Message-Id: <1130225116.27963.15.camel@localhost>

On Mon, 2005-10-24 at 23:09 +0100, Martin wrote:
> On Mon, 2005-10-24 at 18:21 +0200, Dave Hansen wrote:
> > I'm working on a project to checkpoint and restart processes. Obviously, after a
> > process dies, and is "transparently" restarted, it might get confused because
> > its pid changed. (This is one of many issues, but I'm starting with pids)
> I've seen some process checkpointing / migration patches for Linux in
> the past. Have you had a look around to see if there is anything else
> that already does this. Perhaps I'm getting the wrong end of the stick
> but it might save you some time.

Basically, all of the existing patches were meant to be just that:
patches. My goal is to get everything into the mainline kernel.

It turns out that it's much easier to step back and rethink what we
need, and recode it to the current kernel standards than try to shoehorn
something that exists into shape. Also, many of the existing projects
try to do too much in userspace.

That said, I'm getting lots of inspiration from existing projects like

-- Dave

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Received on Tue Oct 25 08:26:18 2005

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