Re: xl pci-detach vs xm pci-detach in Xen 4.3 (one works, the other does not)

[George Dunlap <george.dunlap@eu.citrix.com>]

On 10/06/13 14:20, Konrad Rzeszutek Wilk wrote:
> On Mon, Jun 10, 2013 at 12:12:47PM +0100, George Dunlap wrote:
>> create ^
>> title it xl pci-detach failure
>> thanks
>>
>> On Fri, Jun 7, 2013 at 4:45 PM, Konrad Rzeszutek Wilk
>> <konrad.wilk@oracle.com> wrote:
>>> any thoughts? I don't know if this is a regression or not, but the
>>> libxl errors are pointing me to the recent XSA issue - which I thought
>>> was fixed?
>> I think the recent issue was with xend not working.  Did we fix send
>> and break xl?
> Could be. It might also be that that 'xl' never did it the same way
> as 'xend' (meaning this might be a XenBus teardown change).
>
> Note also that this is PV guests - and I think most of the testing
> had been with the HVM guests with PCI passthrough. So it might be a
> seperate issue altogether. Or that nobody tried doing PCI plug/unplug
> in the past :-(

I certainly did before my February FOSDEM talk that included driver domains.

>
>> In any case, this is a pretty important feature; I think we need to
>> sort it out before release, so I'm giving it a bug id to track.
>>
>> Is "pci permissive" set in the global xl.conf file?
> No. Let me of course try that.

That really should have to do with getting it working in the first 
place, not detaching it; but still...

>> Have you tried this with say, a stock Debian Wheezy kernel?
> No. A v3.10-rc4 with Xen 4.3 latest.
>
> Is Debian Wheezy a 2.6.32 kernel?

No, 3.2.

  -George