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[Xen-devel] VT-d issues

To: <weidong.han@xxxxxxxxx>, <allen.m.kay@xxxxxxxxx>
Subject: [Xen-devel] VT-d issues
From: "Kamala Narasimhan" <Kamala.Narasimhan@xxxxxxxxxx>
Date: Wed, 7 May 2008 14:10:12 -0400
Cc: Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>
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Thread-index: AciwbZfvcYfvT0dBRY+4ihskqtMIFQ==
Thread-topic: VT-d issues
I tried VT-d pass-through with the latest xen-unstable and encounter the
following issue(s) -

1) When I pass through a network adapter (doesn't matter which kind),
while I see the device within guest OS (tested with Vista and XP guest),
I encounter a machine reset when the driver for the passed through
network adapter is being installed (either through plug and play or by
manual installation).  I have attached information about the system in
question.  Has anyone tried pass-through on a system with the exact
configuration provided in the attachment (including stepping; Note -
network pass-through works on a machine with almost similar
configuration except for stepping # difference)?  Also, attached is bug
check info if that is useful.
2) On a different machine, I encounter a bugcheck similar to the one
entered in http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1244
only when I shutdown a domain that pass-through a Intel 82566DM-2
network adapter.  As the bug report wasn't specific about the device
that is passed through when the machine reset happens, thought I would
mention in case this helps narrow down the problem.

Thanks,
Kamala

Attachment: Optiplex-755-stepping-11
Description: Optiplex-755-stepping-11

Attachment: VT-d-crash
Description: VT-d-crash

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