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[Xen-bugs] [Bug 1343] New: Host S3 broken when iommu=1

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Subject: [Xen-bugs] [Bug 1343] New: Host S3 broken when iommu=1
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Date: Thu, 4 Sep 2008 18:21:49 -0700
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           Summary: Host S3 broken when iommu=1
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: kamala.narasimhan@xxxxxxxxxx

System tested on - Optiplex 755 (Weybridge)

Steps to reproduce -

1) Add iommu=1 to kernel boot option
2) Execute within dom0 - echo mem > /sys/power/state
3) Attempt to resume.

First I got DMAR hardware is malfunction (/xen/drivers/passthrough/vtd/iommu.c)
panic during resume; commenting the panic still resulted in resume failure
(must be early on as I couldn't get anything out of serial console).

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