From: Ronald G Minnich <rminnich@lanl.gov>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] hacking issue: memory resizing
Date: Thu, 8 Sep 2005 09:25:15 -0600 [thread overview]
Message-ID: <432057DB.2060302@lanl.gov> (raw)
In-Reply-To: <43202591.1030201@anvil.com>
Dave Lukes wrote:
> Ron,
> 'Scuse my ignorance,
> but presumably you're thinking about some kind of tepid-swap
> (OS migrates processes off the board and tells you when you can unplug it)
> arrangement?
yes, or more aggressive: OS remaps virtual memory and then removes that
physical memory from the maps. I mean, if the DIMM with your kernel is
bad, it's all over; but if it is some other DIMM, well, maybe it won't
be too hard. Or maybe it will.
Needed for hot plug memory and xen.
Also, the memory rmap needs rewriting anyway; here's a chance to get
this done.
Also, there's not enough kernel discussion on this list (as per the town
meeting log). So I am trying to incite some.
ron
next prev parent reply other threads:[~2005-09-08 15:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-07 15:45 Ronald G Minnich
2005-09-07 15:59 ` Francisco Ballesteros
2005-09-07 18:09 ` Ronald G Minnich
2005-09-08 11:50 ` Dave Lukes
2005-09-08 15:25 ` Ronald G Minnich [this message]
2005-09-09 14:52 ` erik quanstrom
2005-09-09 15:18 ` Ronald G Minnich
2005-09-09 15:31 ` jmk
2005-09-09 18:04 ` erik quanstrom
2005-09-09 18:09 ` jmk
2005-09-09 18:14 ` Eric Van Hensbergen
2005-09-09 19:06 ` Ronald G Minnich
2005-09-09 19:59 ` Tim Newsham
2005-09-09 20:46 ` Francisco Ballesteros
2005-09-10 2:16 ` Brian L. Stuart
2005-09-10 21:41 ` Francisco Ballesteros
2005-09-11 2:11 ` Brian L. Stuart
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