Marvell Yukon (msk) network card causes the "sticky mouse" problem: mouse stops for extended periods of time

[YongHyeon PYUN]

On Wed, May 11, 2016 at 10:46:01PM -0700, Yuri wrote:
> On 05/08/2016 02:33, YongHyeon PYUN wrote:
> >msk(4) will try to use MSI unless not configured to do so the IRQ
> >wouldn't be shared with other devices.  If msk(4) is using MSI you
> >should see a high irq number greater than or equal to 256 in vmstat
> >output.  Given that you're seeing issues with MSI, try disabling
> >MSI for msk(4).  Add the following tunable to /boot/loader.conf and
> >reboot.
> >
> >hw.msk.msi_disable="1"
> 
> For some reason hw.msk.msi_disable isn't found:
> # sysctl hw.msk.msi_disable=1
> sysctl: unknown oid 'hw.msk.msi_disable'
> even though it is defined in sys/dev/msk/if_msk.c and if_msk module is 
> loaded.

hw.msk.msi_disable is a loader tunable so you can't check it with
sysctl(8).  Add the tunable to boot/loader.conf to take it effect.
See loader.conf(5) for more information.