On Fri, Sep 29, 2017 at 12:36 PM, Paul Koch <paul.koch at akips.com>
wrote:> On Thu, 14 Sep 2017 09:54:56 +0800
> Sepherosa Ziehau <sephe at freebsd.org> wrote:
>
>> If you have any updates on this, please let me know. There is still
>> time for 10.4.
>
> We are still playing around with this in the lab...
>
> Running similar setup as the customer
> Microsoft Windows Server 2012 R2 Datacentre (6.3.9600) Revision 16384
> Hyper-V 2012
>
> Two VM guests
> - 11.0-RELEASE
> - 11.1-p1
>
> We can not get the Hyper-V hn interface to lock up like the customer can
> though.
>
> We can get the VMs to hang/stall regularly if the guests run ntpd - approx
> every 15 mins, but no real obvious pattern to it. Disabling ntpd fixes it.
Hmm, by ntpd I think you mean ntp client? You will have to disable
timesync if you run ntp client:
sysctl hw.hvtimesync.sample_thresh=-1
sysctl hw.hvtimesync.ignore_sync=1
They interfere w/ each other.
Or do you mean the network hanging triggered by "RXBUF ack failed"?
Thanks,
sephe
--
Tomorrow Will Never Die