Bug 204011

Summary: Xen: kernel unaligned access
Product: [Fedora] Fedora Reporter: Akio Takebe <takebe_akio>
Component: kernel-xenAssignee: Xen Maintainance List <xen-maint>
Status: CLOSED WONTFIX QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6CC: bstein, mattdm, sakaia
Target Milestone: ---   
Target Release: ---   
Hardware: ia64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-26 23:17:50 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: 212505, 212536, 212645    
Attachments:
Description Flags
ported from xen-unstable.hg to kernel-2.6.18-1.2736.el5 none

Description Akio Takebe 2006-08-24 23:46:32 UTC 
Description of problem:
We have some error message by using network on guest OS.
kernel unaligned access to 0xe0000000187a4e1e, ip=0xa0000001004fad50

Version-Release number of selected component (if applicable):
My environment is;
- dom0/domU kernel
   http://hg.et.redhat.com/kernel/linux-2.6-xen-fedora cset #35247
- xen & tools
   http://xenbits.xensource.com/ext/xen-ia64-unstable.hg cset #11048
- Machine
   FedoraCore2 test2 on Tiger4 

How reproducible:
Always

Steps to Reproduce:
1. On domU, network is enabled. 
2.
3.
  
Actual results:        
kernel unaligned access to 0xe0000000187a4e1e, ip=0xa0000001004faed0
kernel unaligned access to 0xe0000000187a4e2e, ip=0xa0000001004fb130
kernel unaligned access to 0xe0000000187a4e1e, ip=0xa0000001004fb2e0
kernel unaligned access to 0xe00000001662921e, ip=0xa0000001004fad50
kernel unaligned access to 0xe00000001662921e, ip=0xa0000001004fae21
kernel unaligned access to 0xe00000001662921e, ip=0xa0000001004faed0
kernel unaligned access to 0xe00000001662922e, ip=0xa0000001004fb130
kernel unaligned access to 0xe00000001662921e, ip=0xa0000001004fb2e0
kernel unaligned access to 0xe0000000187a5e1e, ip=0xa0000001004fad50
kernel unaligned access to 0xe0000000187a5e1e, ip=0xa0000001004fae21
kernel unaligned access to 0xe0000000187a5e1e, ip=0xa0000001004faed0
kernel unaligned access to 0xe0000000187a5e2e, ip=0xa0000001004fb130
kernel unaligned access to 0xe0000000187a5e1e, ip=0xa0000001004fb2e0
kernel unaligned access to 0xe00000000df1a61e, ip=0xa0000001004fad50
kernel unaligned access to 0xe00000000df1a61e, ip=0xa0000001004fae21
kernel unaligned access to 0xe00000000df1a61e, ip=0xa0000001004faed0
kernel unaligned access to 0xe00000000df1a62e, ip=0xa0000001004fb130
kernel unaligned access to 0xe00000000df1a61e, ip=0xa0000001004fb2e0
kernel unaligned access to 0xe0000000187a501e, ip=0xa0000001004fad50
kernel unaligned access to 0xe0000000187a501e, ip=0xa0000001004fae21
kernel unaligned access to 0xe0000000187a501e, ip=0xa0000001004faed0
kernel unaligned access to 0xe0000000187a502e, ip=0xa0000001004fb130
kernel unaligned access to 0xe0000000187a501e, ip=0xa0000001004fb2e0

Expected results:
Not access unaligned memory and there are no error messages


Additional info:
Comment 1 Akio Takebe 2006-10-19 00:47:32 UTC 
This problem is fixed at changeset 11815 of xen-ustable.hg.

Please apply the following patch.
http://xenbits.xensource.com/xen-unstable.hg?cs=797430d25f1b

Best Regards,

Akio Takebe
Comment 2 Aron Griffis 2006-10-27 02:20:33 UTC 
Created attachment 139548 [details]
ported from xen-unstable.hg to kernel-2.6.18-1.2736.el5
Comment 3 Matthew Miller 2007-04-06 19:40:15 UTC 
Fedora Core 5 and Fedora Core 6 are, as we're sure you've noticed, no longer
test releases. We're cleaning up the bug database and making sure important bug
reports filed against these test releases don't get lost. It would be helpful if
you could test this issue with a released version of Fedora or with the latest
development / test release. Thanks for your help and for your patience.

[This is a bulk message for all open FC5/FC6 test release bugs. I'm adding
myself to the CC list for each bug, so I'll see any comments you make after this
and do my best to make sure every issue gets proper attention.]
Comment 4 Red Hat Bugzilla 2007-07-25 01:33:04 UTC 
change QA contact
Comment 5 Chris Lalancette 2008-02-26 23:17:50 UTC 
This report targets FC6, which is now end-of-life.

Please re-test against Fedora 7 or later, and if the issue persists, open a new bug.

Thanks