>>> On 07.02.17 at 16:24, wrote:
> Or maybe we should just disable persistent grants by default, by setting
> xen_blkif_max_pgrants = 0. This feature doesn't scale well, and interacts
> badly
> with other things (like indirect descriptors). The amount of code required to
> maintain this feature i
On Tue, Feb 07, 2017 at 07:13:57AM -0700, Jan Beulich wrote:
> >>> On 07.02.17 at 14:59, wrote:
> > On Mon, Feb 06, 2017 at 03:53:58AM -0700, Jan Beulich wrote:
> >> Interestingly I've found
> >> https://groups.google.com/forum/#!topic/linux.kernel/N6Q171xkIkM
> >> when looking around - is there
>>> On 07.02.17 at 14:59, wrote:
> On Mon, Feb 06, 2017 at 03:53:58AM -0700, Jan Beulich wrote:
>> Interestingly I've found
>> https://groups.google.com/forum/#!topic/linux.kernel/N6Q171xkIkM
>> when looking around - is there a reason this or something similar
>> never made it into the driver? W
On Mon, Feb 06, 2017 at 03:53:58AM -0700, Jan Beulich wrote:
> Konrad, Roger,
>
> we've recently had a report of stuck I/O (with slightly over a hundred
> frontend instances in a single guest), which turned out to be a simple
> lack of configured grants on the system. This raises two questions:
>
