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

[YongHyeon PYUN]

On Sat, May 07, 2016 at 09:33:39AM -0700, Yuri wrote:
> On 05/07/2016 08:34, Eugene Grosbein wrote:
> >
> >Verify if your mouse (USB one?) is using IRQ 18 too.
> >"vmstat -ai" command would be helpful.
> Yes, I have a USB mouse, and my USB uses IRQ 18:
> 
> irq18: ehci0 uhci5                503154          9
> stray irq18                            0          0
> 

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"

Let me know whether that makes any difference for you.