Re: [Xen-devel] [PATCH v5 6/9] libxc: create unmapped initrd in domain builder if supported

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2015-11-25 at 16:18 +0000, Wei Liu wrote:
> On Wed, Nov 25, 2015 at 11:12:12AM -0500, Boris Ostrovsky wrote:
> > On 11/12/2015 08:43 AM, Juergen Gross wrote:
> > > In case the kernel of a new pv-domU indicates it is supporting an
> > > unmapped initrd, don't waste precious virtual space for the initrd,
> > > but allocate only guest physical memory for it.
> > 
> > This patch breaks 32-bit pygrub.
> > 
> 
> This particular patch?
> 
> We discovered a bug in mini-os that caused 32-bit pygrub to break withi
> this series. It's now fixed in mini-os upstream.ÂÂCheck Config.mk for
> mini-os commit that fixes the bug.

Are we really talking about pygrub here, or pvgrub? (the former is
unaffected by mini-os).

If we are really talking about pygrub then we are _actually_ talking about
the domain builder when operating on the RHEL5 kernel+initrd -- the fact
ithat they were extracted from the guest filesystem by pygrub is
irrelevant.

> > With RHEL5 I get
> >ÂÂÂÂÂinitrd extends beyond end of memory (0x780080eda000 > 0x40000000)

This is reported within the guest, right?

Ian.

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