[Xen-bugs] [Bug 1359] New: Network driver: non-page-aligned MMIO BAR problem with Xen 3.3

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1359

           Summary: Network driver: non-page-aligned MMIO BAR problem with
                    Xen 3.3
           Product: Xen
           Version: unspecified
          Platform: x86
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Unspecified
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: icarr@xxxxxxxxxxxxxxxxx


At the request of 'Nemeth, Tamas [nice@xxxxxxxxxxxxxxx]' I am raising this as
an issue.

[-- 
I can't see a version 3.3 tag in the bugzilla Version selection box, is this
the correct place for this
--]

I am using Xen 3.3.0 and trying to expose a PCI resource to a domU. I have
managed to hide the resource in dom0 by assigning it to pciback. But when I try
and start the domU with the pci = [ '00:12.0' ] line in the config I get the
message:

        pci: 0000:00:12.0 non-page-aligned MMIO BAR found.

(actually I was getting the message about the illegal format character in
pciif.py but having corrected that I now get the message above)

Can anyone tell me what it means and is there anything I can do about it?

The device is a via_rhine Rhine II Ethernet adaptor on a via Epia SN
motherboard. Operating system is Debian Etch for both dom0 and domU. Dom0 is
using the 2.6.18.8 kernel and Xen itself from a Xen source build (source from
around 20th september 2008).

Many thanks

Ian

PS I have also recieved this mail offline with similar sounding issue:

>>>>
Hello,

Sorry to write you directly, but I'm no more in the xen-users mailing list.

I'm in the same conditions as you :

Xen 3.3.0 (under Gentoo.)
Kernel 2.6.18-xen-r12

and I have exactly the same error message when I what to pass my 8139 network
card to my domU.

Did you find a reason / solution ?

Regards,

François.
<<<<


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