Re: [Xen-devel] linux kernel 2.6.37

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Jan 21, 2011 at 01:42:01AM +0300, Vasiliy G Tolstov wrote:
> On Thu, 2011-01-20 at 22:19 +0200, Pasi Kärkkäinen wrote:
> > On Thu, Jan 20, 2011 at 11:11:09PM +0300, Vasiliy G Tolstov wrote:
> > > On Thu, 2011-01-20 at 14:09 -0600, Don Brearley wrote:
> > > > 
> > > > FWIW, I was able to successfully boot PV domU guests while using Xen
> > > > 4.0.2-rc2-pre and
> > > > 2.6.37-rc7 from the git repo
> > > > 
> > > > The problem I encountered was the lack of netback support.  Couldn't
> > > > get any
> > > > network interfaces to come up.  Whoops :)  Otherwise it seemed fine,
> > > > but I didnt
> > > > run the guests very long. 
> > > > 
> > > > Hope that helps!
> > > > - Don
> > > 
> > > Sorry, i mean domU, not dom0 =). I can try to move from 2.6.32 from
> > > jeremy to vanilla 2.6.37...
> > > 
> > 
> > Yeah, please try it and let us know if you find any issues.
> > 
> > One day in the (hopefully near) future we'll set up automatic
> > upstream (Linus) kernel testing.. so we can catch possible regressions/bugs 
> > early
> > during the -rc phase and "final" releases are known to be good..
> > 
> > -- Pasi
> > 
> 
> 
> Interesting thing appeared:
> domU pv running with memory=512 and maxmem=4096
> 
> after kernel is booted i see in /var/log/messages
> Memory: 377324k/4202496k available (4125k kernel code, 448k absent,
> 3824724k reserved, 1636k data, 640k init)
> 
>             total       used       free     shared    buffers     cached
> Mem:           372        264        107          0         29
> 119
> -/+ buffers/cache:        116        256
> Swap:         4996          0       4996
> 
> xm list says that xen allocated 512M of ram to domain
> Why xen steals 140M of memory?

Do you see any messages during bootup about memory being returned? Look for
xen_release_chunk .. and pages freed ?
> 
> 
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