Re: [Xen-devel] [PATCH] docs: document vbd numbering and naming

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Olaf Hering writes ("Re: [Xen-devel] [PATCH] docs: document vbd numbering and 
naming"):
> On Thu, Feb 10, Ian Campbell wrote:
> > On Tue, 2011-02-08 at 15:25 +0000, Ian Jackson wrote:
> > > +Some Linux HVM guests with broken PV-on-HVM drivers do not cope
> > > +properly if both hda and hdc are supplied, nor with both hda and xvda,
> > > +because they directly map the bottom 8 bits of the xenstore integer
> > > +directly to the Linux guest's device number and throw away the rest;
> > > +they can crash due to minor number clashes.  With these guests, the
> > > +workaround is not to supply problematic combinations of devices.
> 
> Is "hda and hdc" correct in this paragraph?

In trad Linux hdc has identical minor number to hda but different
major, so yes.

Ian.

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