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[Xen-bugs] [Bug 1636] New: guest always in printing some useless informa

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Subject: [Xen-bugs] [Bug 1636] New: guest always in printing some useless information when detach vf
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Date: Tue, 27 Jul 2010 02:48:26 -0700
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           Summary: guest always in printing some useless information when
                    detach vf
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: yang.z.zhang@xxxxxxxxx

Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows):linux
Change Set: 21769
Hardware: WSM-HEDT
xen-changeset:   21769:a672af698bc3

pvops git:
commit b29254c40dac94960fd3887275c65c83b71086ea
Merge: cc867b2... 9d85e25...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit add968aaf68cb57257428f8cfadb209f2614a6d8
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Fri Jul 2 17:36:01 2010 +0100

Bug detailed description:
Assign a pf or vf(not pci or pcie nic) to the guest in the config, then dynamic
attach a vf to guest. when we use 'xm pci-detach ' to detach the vf which we
dynamic attach before,you will see the guest alway in printing some information
and can not stop. 
This issue can be produced only when guest is rhel5 or rhel6, it work well with
slse and win2K8 sp2.
we also test this case under xen-4.0, but it is ok under it. 
Beacause guest boot fail in pae now, so we do not test it in pae. when pae is
working well, we will test it too.

Reproduce steps:
1.hide pf and vf
2.assign a pf to guest in config file
3.xm cr <your config file>
4.attach a vf to guest then detach it and the problem will arise

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