[Xen-devel] Re: [RFC PATCH 35/35] Add Xen virtual block device driver.

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

On Wed, Mar 22, 2006 at 10:39:25AM -0600, Anthony Liguori wrote:
> This is another thing that has always put me off.  The virtual block 
> device driver has the ability to masquerade as other types of block 
> devices.  It actually claims to be an IDE or SCSI device allocating the 
> appropriate major/minor numbers.
> 
> This seems to be pretty evil and creating interesting failure conditions 
> for users who load IDE or SCSI modules.  I've seen it trip up a number 
> of people in the past.  I think we should only ever use the major number 
> that was actually allocated to us.

Exactly.  We vetoed crap like that in the ibm vio drivers already so
it was removed before merging those drivers.


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