Bug 212505

Summary: Xen: kernel unaligned access
Product: Red Hat Enterprise Linux 5 Reporter: Aron Griffis <agriffis>
Component: kernel-xenAssignee: Aron Griffis <agriffis>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 5.0CC: herbert.xu, sakaia, xen-maint
Target Milestone: ---   
Target Release: ---   
Hardware: ia64   
OS: Linux   
Whiteboard:
Fixed In Version: beta2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-12-23 01:45:56 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: 204011    
Bug Blocks:    

Description Aron Griffis 2006-10-27 02:23:44 UTC 
+++ This bug was initially created as a clone of Bug #204011 +++

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:

-- Additional comment from takebe_akio.com on 2006-10-18 20:47 EST --
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

-- Additional comment from agriffis on 2006-10-26 22:20 EST --
Created an attachment (id=139548)
ported from xen-unstable.hg to kernel-2.6.18-1.2736.el5
Comment 1 Stephen Tweedie 2006-10-27 10:35:47 UTC 
*** Bug 212536 has been marked as a duplicate of this bug. ***
Comment 3 RHEL Program Management 2006-11-15 15:02:22 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 4 Larry Troan 2006-11-20 19:38:57 UTC 
Per discussion with Prarit and Aron,
> Bug 212505: 
> Status-NEW, patch attached
Should be in RHEL5.0 before RC.

Aron, please ACK for devel; QA plewease ACK/NAK accordingly.
Comment 5 Jay Turner 2006-11-20 21:07:57 UTC 
QE ack for RHEL5.
Comment 6 Larry Troan 2006-11-28 15:50:45 UTC 
Ping devel...... 
Aron, please provide devel ACK and change status to ASSIGNED so we can escalate
for 5.0 consideration. since patch is available/attached.
Comment 9 Larry Troan 2006-12-04 02:14:03 UTC 
Escalating for RHEL5.0 consideration per Thursday's RHEL5 meeting.

We need a DEVEL ACK (Aron/Prarit or your management). 
Patch available. Changing bug to ASSIGNED.
Comment 10 Aron Griffis 2006-12-04 21:56:54 UTC 
Devel ACK
Comment 11 Aron Griffis 2006-12-05 18:13:24 UTC 
*** Bug 212645 has been marked as a duplicate of this bug. ***
Comment 13 Don Zickus 2006-12-06 23:04:27 UTC 
in 2.6.18-1.2839.el5
Comment 14 Herbert Xu 2006-12-11 22:46:43 UTC 
*** Bug 219209 has been marked as a duplicate of this bug. ***
Comment 15 RHEL Program Management 2006-12-23 01:45:56 UTC 
A package has been built which should help the problem described in 
this bug report. This report is therefore being closed with a resolution 
of CURRENTRELEASE. You may reopen this bug report if the solution does 
not work for you.