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-xenAssignee: Keiichiro Tokunaga <ktokunag>
Status: CLOSED ERRATA QA Contact: Martin Jenner <mjenner>
Severity: high Docs Contact:
Priority: high    
Version: 5.0CC: 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: ---

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 Product and 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