From: Pavel Machek <pavel@suse.cz>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org, ralf@gnu.org, rhw@memalpha.cx,
mingo@redhat.com, paulus@samba.org, anton@samba.org,
schwidefsky@de.ibm.com, bh@sgi.com, davem@redhat.com, ak@suse.de,
torvalds@transmeta.com
Subject: Re: Hotplug CPU Boot Changes: BEWARE
Date: Sun, 2 Jun 2002 16:22:32 +0000 [thread overview]
Message-ID: <20020602162232.I219@toy.ucw.cz> (raw)
In-Reply-To: <E17GHB3-0000gD-00@wagner.rustcorp.com.au> <m1elfjw39n.fsf@frodo.biederman.org>
Hi!
> > In writing the hotplug CPU stuff, Linus asked me to alter the
> > boot sequence to "plug in" CPUs. I am shortly going to be sending
> > these patches to him now I have got my x86 box to boot with the
> > changes.
>
> If to the general SMP case is added the ability to dynamically enable
> and disable cpus at runtime, this infrastructure work appears to have
> general applicability now. Allowing for example dynamic
> enable/disable of HT on P4-Xeons at runtime for example.
Well, this way we can get suspend-to-{RAM,disk} for SMP... Offline all
other CPUS, do suspend, put them back online.
Pavel
--
Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.
next prev parent reply other threads:[~2002-06-09 18:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-07 10:40 Rusty Russell
2002-06-07 14:51 ` Eric W. Biederman
2002-06-02 16:22 ` Pavel Machek [this message]
2002-06-08 1:55 ` Keith Owens
2002-06-10 7:05 ` Rusty Russell
2002-06-10 13:43 ` Eric W. Biederman
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