Description of problem:
We want be able to run RHEL-5 fully virtualized guests with paravirtualized
drivers. Xen emulates a IDE disk controller (PIIX3) which is driven by the
drivers/ide/ subsystem in RHEL-5.
The ide drivers are compiled statically, thus it is impossible to select ide vs.
paravirtualied driver by module load order. That in turn requires an kernel
command line option to disable the ide drivers so the paravirtual driver can
As the paravirtual drivers are optional we can't automatically disable ide for
the xen disk controller, although it can easily be identified by pci subsystem id.
Created attachment 159061 [details]
patch intoduces ide=disable
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release. Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update
You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.