From: Blaisorblade <blaisorblade@yahoo.it>
To: user-mode-linux-devel@lists.sourceforge.net
Cc: Jeff Dike <jdike@addtoit.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
linux-kernel@vger.kernel.org
Subject: Re: [uml-devel] Re: [RFC] PATCH 0/4 - Time virtualization
Date: Fri, 28 Apr 2006 13:33:40 +0200 [thread overview]
Message-ID: <200604281333.41358.blaisorblade@yahoo.it> (raw)
In-Reply-To: <20060426180110.GB8142@ccure.user-mode-linux.org>
On Wednesday 26 April 2006 20:01, Jeff Dike wrote:
> On Wed, Apr 19, 2006 at 02:25:00AM -0600, Eric W. Biederman wrote:
> > In the case of migration the ugly case to properly handle is the
> > monotonic timer. That needs an offset yet it is absolutely forbidden
> > to provide that offset from the inside. So this is the one namespace
> > that I think is inappropriate to use sys_unshare to create.
> > We need a system call so that we can specify the minimum or the
> > starting monotonic time base.
> For migration, it looks like the container will have to specify the
> time base at creation so that everything in it will have a consistent
> view of time if they get moved around.
> So, maybe it belongs in clone as a "backwards" flag similar to
> CLONE_NEWNS.
I must note that currently every (?) flag allowed for unshare is also allowed
for clone, so you need to do that anyway.
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade
Chiacchiera con i tuoi amici in tempo reale!
http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com
next prev parent reply other threads:[~2006-04-28 11:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-13 17:19 Jeff Dike
2006-04-14 0:31 ` john stultz
2006-04-14 1:53 ` [uml-devel] " Jeff Dike
2006-04-14 16:24 ` john stultz
2006-04-19 8:25 ` Eric W. Biederman
2006-04-26 18:01 ` Jeff Dike
2006-04-28 11:33 ` Blaisorblade [this message]
2006-04-28 11:48 ` [uml-devel] " Jeff Dike
2006-04-28 12:14 ` Jeff Dike
2006-04-28 13:54 ` Blaisorblade
2006-04-28 15:15 ` Jeff Dike
2006-04-28 20:10 ` Blaisorblade
2006-04-28 16:18 ` Eric W. Biederman
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