[Xen-bugs] [Bug 1742] Passthrough VF does not work after DomU reboot with non-distro kernel (stock 2.6.35)

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1742





------- Comment #7 from jason.kwon@xxxxxxxxxxxx  2011-02-16 11:20 -------
(In reply to comment #6)
> What is the  "kernel _other than_ original distro"? Are we talking about the
> stock kernel from ftp.kernel.org?
> 

I've attempted using multiple kernels in the Ubuntu 10.10 DomU, and none will
allow network traffic to pass through the passed-in VF other than the
originally installed distro kernel.  Some kernels I've tried are:

1) updated Ubuntu kernel (apt-get install linux-image-XXX).  I've tried
2.6.35-23-server, 2.6.35-24-server, 2.6.35-25-server.
2) Compiled Ubuntu kernel (from apt-get source)
3) Compiled Ubuntu kernel (from Ubuntu maverick git repository)
4) Compiled Ubuntu kernel (from linux-source package)
5) kernel.org kernel (2.6.36)

I also booted a RedHat 5.3 guest, and the results were similar--only the 2.6.18
kernel installed with the distro allowed VF traffic to pass.  I attempted
several kernel.org 2.6.36 kernels and also pv_ops kernels in that guest, and
none worked.


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