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[Xen-bugs] [Bug 1666] New: xen 4.0.1 guests losing network connectivity

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Subject: [Xen-bugs] [Bug 1666] New: xen 4.0.1 guests losing network connectivity
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Date: Thu, 30 Sep 2010 05:04:09 -0700
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           Summary: xen 4.0.1 guests losing network connectivity
           Product: Xen
           Version: unspecified
          Platform: x86-64
        OS/Version: other
            Status: NEW
          Severity: critical
          Priority: P1
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: hairyairey@xxxxxxxxxxxxxx

Xen 4.0.1-1 on Debian Squeeze kernel 2.6.32-5-xen-amd64 guest OSs disappear off
the network within 24 hours. This only affects Debian guests and appears to be
almost random, ie not every Debian guest is affected.

The problem seems to be identical to this one -

Arp requests from the guest are appearing on the network. Setting static arp
table entries on the guest and host do not resolve the problem. The bridging of
network traffic by the host appears to be failing.

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