Re: [Xen-devel] [PATCH v2] x86/HVM: fix forwarding of internally cached requests

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.05.16 at 10:30, <quan.xu@xxxxxxxxx> wrote:
> On April 28, 2016 11:13 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>> >>> On 25.04.16 at 10:40, <liang.z.li@xxxxxxxxx> wrote:
>> > With other patches also in place, still not work.
>> > Jianzhong  has been left and Quan will take over the task.
>> 
>> May I ask for another try, with current tip of staging plus
>> http://lists.xenproject.org/archives/html/xen-devel/2016- 
>> 04/msg03661.html
>> ?
> 
> The same issue for rhel 6.4VM,  which cannot initialize VF driver too.. the 
> below is log  of rhel 6.4 VM:
>              .. 
>              igbvf: 0000:00.04.0: Invalid MAC Address: 00:00:00:00:00:00
>              igbvf: probe of 0000:00.04.0 failed with error -5
>              ..
> 
> But when I tried to initialize VF MAC in Dom0 with e.g.:
>                   $ip link set eth0 vf 0 mac 00:1E:67:65:93:01

Makes things even more strange, as things work fine for me with
SLE11 and SLE12 guests. But I have to admit that the "Invalid MAC
Address" looks quite unrelated, i.e. is this perhaps some completely
different problem you have?

Again, considering that you have a repro (while I don't), the
easiest would be to simply log all MSI-X related actions (there
shouldn't be too many), to see where things go wrong. Such a
log alone would maybe already allow me to do further
investigation.

Jan


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