linux-kernel - Re: How much of a mess does OpenVZ make? ;) Was: What can OpenVZ do?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090314002059.GA4167@x200.localdomain>
Date:	Sat, 14 Mar 2009 03:20:59 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	Ying Han <yinghan@...gle.com>,
	"Serge E. Hallyn" <serue@...ibm.com>, linux-api@...r.kernel.org,
	containers@...ts.linux-foundation.org, hpa@...or.com,
	linux-kernel@...r.kernel.org,
	Dave Hansen <dave@...ux.vnet.ibm.com>, linux-mm@...ck.org,
	viro@...iv.linux.org.uk, mingo@...e.hu, mpm@...enic.com,
	Andrew Morton <akpm@...ux-foundation.org>, xemul@...nvz.org,
	tglx@...utronix.de
Subject: Re: How much of a mess does OpenVZ make? ;) Was: What can OpenVZ
	do?

On Fri, Mar 13, 2009 at 02:01:50PM -0700, Linus Torvalds wrote:
> 
> 
> On Fri, 13 Mar 2009, Alexey Dobriyan wrote:
> > > 
> > > Let's face it, we're not going to _ever_ checkpoint any kind of general 
> > > case process. Just TCP makes that fundamentally impossible in the general 
> > > case, and there are lots and lots of other cases too (just something as 
> > > totally _trivial_ as all the files in the filesystem that don't get rolled 
> > > back).
> > 
> > What do you mean here? Unlinked files?
> 
> Or modified files, or anything else. "External state" is a pretty damn 
> wide net. It's not just TCP sequence numbers and another machine.

I think (I think) you're seriously underestimating what's doable with
kernel C/R and what's already done.

I was told (haven't seen it myself) that Oracle installations and
Counter Strike servers were moved between boxes just fine.

They were run in specially prepared environment of course, but still.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/