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[Xen-bugs] [Bug 1716] New: RHEL6 guest fail to do save/restore

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Subject: [Xen-bugs] [Bug 1716] New: RHEL6 guest fail to do save/restore
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Date: Fri, 21 Jan 2011 02:45:07 -0800
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           Summary: RHEL6 guest fail to do save/restore
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Tools
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: shaohui.zheng@xxxxxxxxx

Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows):Linux
Change Set: 22451
Hardware: sandy bridget
xen-changeset:   22451

pvops git:
commit 56eabf9f2a6632d3b2ef92a5b91a75020a4f0a31
Author: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx>
Date:   Tue Aug 17 02:31:15 2010 -0700

ioemu git:
commit dd9d12dc85dfc5f873c8d57bd42f09b81219c250
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Nov 23 17:57:17 2010 +0000

xen_commandline: dom0_mem=512M iommu=1 loglvl=all guest_loglvl=all console=com1
sync_console iommu=1 msi=1 conring_size=4M xsave

Bug detailed description:
i create a hvm guest and run rhel6 inside guest. Then use "xm save domid" to
save guest, but it never return and guest still alive. This issue only exist
with rhel6 guest. I try save/restore against fc13, ubuntu10.4, windows and
rhel5, and those guests don't have this issue.

Reproduce steps:
1.install latest xen-unstable(cs:22451)
2.prepare a guest and install rhel6 inside it
3.use xm create to boot up guest
4.after guest bootup, use xm save domit to save guest

Current result:
fail to save guest

Expected result:
guest save/restore successful

Basic root-causing log:

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