+++ 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