Bug 486353

Summary: Fix missing blktap poll-on-aio support
Product: Red Hat Enterprise Linux 5 Reporter: Michal Novotny <minovotn>
Component: xenAssignee: Michal Novotny <minovotn>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: low    
Version: 5.4CC: areis, gozen, mshao, xen-maint
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: xen-3.0.3-86.el5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-09-02 10:11:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 485471    
Attachments:
Description Flags
Poll-on-aio support fix
none
Updated version of my patch none

Description Michal Novotny 2009-02-19 13:59:06 UTC 
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):


How reproducible:
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:
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Actual results:


Expected results:


Additional info:
Comment 1 Michal Novotny 2009-02-20 11:27:04 UTC 
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.

Michal
Comment 2 Michal Novotny 2009-02-23 08:15:29 UTC 
*** Bug 479315 has been marked as a duplicate of this bug. ***
Comment 3 Michal Novotny 2009-05-11 08:18:51 UTC 
Created attachment 343344 [details]
Updated version of my patch

This is updated/reindented version of my patch...
Michal
Comment 4 Jiri Denemark 2009-05-21 15:40:40 UTC 
Fix built into xen-3.0.3-86.el5
Comment 6 Yewei Shao 2009-07-28 05:56:53 UTC 
Verify on xen-3.0.3-91.el5.x86_64
Comment 8 errata-xmlrpc 2009-09-02 10:11:39 UTC 
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 therefore 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.

http://rhn.redhat.com/errata/RHBA-2009-1328.html