Bug 242122

Summary:	[RHEL5.1][XEN][IA64] blktap: Various cleanups necessary for ia64 support
Product:	Red Hat Enterprise Linux 5	Reporter:	Keiichiro Tokunaga <ktokunag>
Component:	kernel-xen	Assignee:	Keiichiro Tokunaga <ktokunag>
Status:	CLOSED ERRATA	QA Contact:	Martin Jenner <mjenner>
Severity:	high	Docs Contact:
Priority:	high
Version:	5.0	CC:	lwang, xen-maint
Target Milestone:	---
Target Release:	---
Hardware:	ia64
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2007-0959	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-11-07 19:50:53 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:

Description Keiichiro Tokunaga 2007-06-01 20:23:34 UTC

Description of problem:
- remove magic number 8 and 64.
  page size / sector size is 8 on x86, however on ia64 page size is
  16kb.
  blkring size is 64 on x86. however it's 128 on ia64.
- replace 0xFFFF with INVALID_GRANT_HANDLE
- don't map io ring into user space with uncachable.
  kernel access the page with cacable and tapdisk uses memory barrier
  so that it isn't necessary.
- remove printk warning and inserted new line.
- remove unused variable, page.
- add one BUG()

cset#12269 fixes the issue.

Comment 1 RHEL Program Management 2007-06-18 20:20:32 UTC

This request was evaluated by Red Hat Kernel Team for inclusion in a Red
Hat Enterprise Linux maintenance release, and has moved to bugzilla 
status POST.

Comment 2 Don Zickus 2007-06-27 15:55:37 UTC

in 2.6.18-32.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Comment 4 Red Hat Bugzilla 2007-07-25 00:47:22 UTC

change QA contact

Comment 5 Mike Gahagan 2007-09-19 20:13:03 UTC

Confirmed fix is in the -45.el5 kernel.

Comment 7 errata-xmlrpc 2007-11-07 19:50:53 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 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.

http://rhn.redhat.com/errata/RHBA-2007-0959.html