Fwd: RAM usage

[jpryzby+d at quoininc.com (Justin Pryzby)]

On Sun, Sep 16, 2007 at 01:35:53AM +1200, Angus McMorland wrote:
> Woops - sent this off-list by accident - it's rather late/early here
> and I should be asleep. Sorry, Tzafrir for the double sending.
> 
> ---------- Forwarded message ----------
> From: Angus McMorland <amcmorl at gmail.com>
> Date: 16 Sep 2007 01:30
> Subject: Re: RAM usage
> To: Tzafrir Cohen <tzafrir.cohen at xorcom.com>
> 
> 
> On 15/09/2007, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
> > On Sat, Sep 15, 2007 at 07:55:02AM -0300, Ben Armstrong wrote:
> > > On Sat, 15 Sep 2007 11:18:09 +1200
> > > "Angus McMorland" <amcmorl at gmail.com> wrote:
> > > >              total       used       free     shared    buffers     cached
> > > > Mem:        906588     287164     619424          0      41908     173652
> > > > -/+ buffers/cache:      71604     834984
> > > > Swap:            0          0          0
> > >
> > > Perhaps you have custom compiled a kernel and have not set CONFIG_HIGHMEM=y?
> >
> > On the default Etch kernel it isn't.
> >
> > $ grep CONFIG_HIGHMEM /usr/src/linux-headers-2.6.18-4-486/.config
> > CONFIG_HIGHMEM4G is not set
> > CONFIG_HIGHMEM64G is not set
> 
> Indeed - I now suspect this is the problem - the config file in my
> live chroot also shows:
> 
> CONFIG_NOHIGHMEM=y
> # CONFIG_HIGHMEM4G is not set
> # CONFIG_HIGHMEM64G is not set
> 
> On my laptop (i.e. not from a live CD), running linux-image-2.6-686,
> these settings look different:
> 
> # CONFIG_NOHIGHMEM is not set
> CONFIG_HIGHMEM4G=y
> # CONFIG_HIGHMEM64G is not set
> CONFIG_PAGE_OFFSET=0xC0000000
> CONFIG_HIGHMEM=y
> 
> So, I'm currently trying to build a 686-based live CD to check if that
> is the difference. Interestingly starting with "lh_config -a i686"...
> doesn't force the install of the 686 image, and rather the 486
> packages:
I think you want to specify --linux-flavours 686

Justin