Red Hat Bugzilla – Bug 486353
Fix missing blktap poll-on-aio support
Last modified: 2014-02-02 17:36:49 EST
Description of problem:
When using any other image type than raw in PV guest or FV guest with PV drivers used (using BLKTAP & TAPDISK), eg. qcow, tapdisk returns segfault because of missing poll-on-aio support which results in image is not seen on PV guest.
Version-Release number of selected component (if applicable):
Adding tap:qcow:/path/to image file to PV Xen domain configuration and starting this domain won't show those devices in /dev tree.
Steps to Reproduce:
Created attachment 332692 [details]
Poll-on-aio support fix
This is a poll-on-aio support fix for qcow images for VMs that are using PV drivers (PV guests, FV guests with PV drivers). It's a backport of upstream at http://xenbits.xensource.com/xen-unstable.hg?rev/eeeb77195ac2.
*** Bug 479315 has been marked as a duplicate of this bug. ***
Created attachment 343344 [details]
Updated version of my patch
This is updated/reindented version of my patch...
Fix built into xen-3.0.3-86.el5
Verify on xen-3.0.3-91.el5.x86_64
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
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