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Re: [Xen-devel] Network card disappears (probably xennet crash) on windows 7 pro 64 bit with gplpv

Il 25/09/2014 12:00, James Harper ha scritto:
-----Original Message-----
From: Fabio Fantoni [mailto:fabio.fantoni@xxxxxxx]
Sent: Thursday, 25 September 2014 7:38 PM
To: James Harper; xen-devel; xen-users@xxxxxxxxxxxxxxxxxxxx
Subject: Re: Network card disappears (probably xennet crash) on windows 7
pro 64 bit with gplpv

Il 25/09/2014 11:15, James Harper ha scritto:
On one dom0 wheezy with xen 4.4-stable and xen-unstable and some
and windows domUs I have had several times in recent months one or
windows domUs no longer reachable via the network.
In all cases the network card disappears and I must reboot windows to
have the network working, I had also installed latest gplpv version
(1.0.1100) that I saw that solves crash with xennet.sys but the problem

If you need more informations and/or tests tell me and I'll post them.

Can you tell me what you mean by "disappears"? Is the machine still
running but you can't see a network card anymore?

Yes windows still running but don't show network card anymore.
This happen after hours or days on one or more windows domUs, other
still working correctly, I not found exactly cause of that and the only
solution for now is reboot the domU when happen.


I doubt I'll be able to reproduce this.

Can you run with the debug version of the drivers, and use debugview from 
sysinternals (you'll need to turn on some logging options in the registry - let 
me know if google doesn't help you find them).

Then, when the crash happens, send me whatever debugview has captured.

The debug version of the drivers is a little slower though, so this may not be 
an option.

I'll be uploading an update in a few days so maybe wait until then to test (it 
won't fix your problem but it's easier if you run the latest version)


I tried the build 1105 and the problem still persist.
Now I'll try to install debug build and use debugview.
Debugview 4.81 open as administrator and with all capture options enable is ok? This is the only and correct key to add? HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Debug Print Filter Add the following value "DEFAULT" : REG_DWORD : 0xFFFFFFFF (found in google with a fast search)

Thanks for any reply and sorry for my bad english.

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