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Bug#645052: kernel only recognizes 32G of memory



On Thu, 2011-10-20 at 05:30 +0100, Ben Hutchings wrote:
> On Tue, 2011-10-18 at 10:57 +0100, Ian Campbell wrote:
> > On Tue, 2011-10-18 at 04:40 +0100, Ben Hutchings wrote:
> [...]
> > >  and since some
> > > people like to run domains with much less memory, I'm inclined to say
> > > that this is 'wontfix' for squeeze.  But I'm not sure just how small
> > > they are likely to be (while still running Debian).  Maybe the cost
> > > isn't that significant.
> > 
> > http://www.debian.org/releases/stable/amd64/ch03s04.html.en and
> > http://www.debian.org/releases/stable/i386/ch03s04.html.en both say the
> > minimum is 64M.
> > 
> > We are talking about going from 128KB to 280KB reserved for the p2m.
> > Which for a 64M machine is going from 0.20% to 0.43% of RAM overhead.
> > 
> > I'm not sure if <64M is realistic. I have a (32-bit, physical) machine I
> > use as a firewall which has 32M and apt-get and friends really do grind
> > along (it's also an old Pentium with a tiny disk, so there are other
> > factors in that).
> > 
> > I think we are only talking about the limit for a 64 bit guest? I would
> > guess that those are more unlikely to be given tiny amounts of RAM
> > compared with 32 bit.
> 
> Yes, that seems reasonable.  Let's do it (but after -39).

Sounds like a plan. I'll wait for -40 to begin then check that in.

Cheers,
Ian.
-- 
Ian Campbell


Better hope you get what you want before you stop wanting it.

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