[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] netfront/netback multiqueue exhausting grants
On Thu, Jan 21, 2016 at 10:37:51AM +0000, Ian Campbell wrote: > On Thu, 2016-01-21 at 10:25 +0000, Wei Liu wrote: > > On Thu, Jan 21, 2016 at 10:12:27AM +0000, Ian Campbell wrote: > > [...] > > > > I've asked the reporter to send logs for the 4.4 case to xen-devel. > > > > > > User confirmed[0] that 4.4 is actually OK. > > > > > > Did someone request stable backports yet, or shall I do so? > > > > > > > I vaguely remember we requested backport for relevant patches long time > > ago, but I admit I have lost track. So it wouldn't hurt if you do it > > again. > > So I think we'd be looking for: > > 32a8440 xen-netfront: respect user provided max_queues > 4c82ac3 xen-netback: respect user provided max_queues > ca88ea1 xen-netfront: update num_queues to real created > > which certainly resolves things such that the workarounds work, and I think > will also fix the default case such that it works with up to 32 vcpus > (although it will consume all the grants and only get 31/32 queues). > > Does that sound correct? > Yes, it does. > As Annie said, we may still want to consider what a sensible default max > queues would be. > Maybe we should set a cap to 8 or 16 by default. Wei. > Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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