Re: Dom0 xvif mbuf issues

[Harry Waddell <waddell%caravaninfotech.com@localhost>]

On Fri, 5 Oct 2018 22:58:50 -0400
Thor Lancelot Simon <tls%panix.com@localhost> wrote:

> On Thu, Oct 04, 2018 at 05:01:21PM +0200, Manuel Bouyer wrote:
> > 
> > Maybe you should try reverting
> > kern.sbmax=1048576                   
> > net.inet.tcp.recvbuf_max=1048576     
> > net.inet.tcp.sendbuf_max=1048576     
> > 
> > to their default values.  
> 
> At least, the sbmax value needs to be slightly larger than the
> socket buffer sizes, because there's some overhead.  If you
> manually set sendspace or recvspace to exactly the sbmax value you
> will see problems quickly.  I don't know what happens with the
> autotuning code, though.
> 
kern.sbmax: 1048576 -> 4194304

I increased to match what I have on another system and booted a stock XEN3_DOM0 netbsd-7
kernel. 

Thanks for the suggestion. 

HW