On Sun, Sep 05, 2010 at 10:55:35AM +0800, ?????? wrote:
> I'm using Xen 4.01 and jeremy's pvops kernel, the kernel version is
> 2.6.32.18.
> At first I want to test the performance of pci passthrough  when it comes
> to the network card 82571EB
>
> I'm using the Jeremy's kernel 2.6.32.18 as DomU kernel too.
>
> And I found if the interface is not connected, I mean the network card
> receives no packet, ( the network card doesn't connect to the switch ),
> it's fine. when I connect it to a switch , I got a lot of "Detected Tx
> Unit Hang" in dmesg of the DomU kernel
> and a kernel oops saying:
>
> Pid: 0, comm: swapper Not tained 2.6.32.18-xen #4
> warn_slowpath_fmt+0x41/0x50
>
> the ooops image is in the attachment of this post.
>
> I've checked the mailing list, some one said it's about the e1000e driver
> with a wrong
> config of the EEPROM.
>
> So I switch to use the network card 82575EB with igb driver
> It seems to work well,Â
> until I find it can't receive any packets in DomU.
> And I see a lot of packets dropped when I ifconfig these interfaces.
> Anyone knows how to deal with this ?
>
Hello,
The latest kernel version in xen/stable-2.6.32.x branch is 2.6.32.21.
Dunno if it has any fixes that are relevant to you.
Anyway, did you read: http://wiki.xensource.com/xenwiki/XenPCIpassthrough
-- Pasi
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