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Subject: Re: Marvell Yukon (msk) network card causes the "sticky mouse"
 problem: mouse stops for extended periods of time
To: Yuri <yuri@rawbw.com>, freebsd-net@freebsd.org
References: <572CC657.8040207@rawbw.com>
From: Eugene Grosbein <eugen@grosbein.net>
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Date: Sat, 7 May 2016 22:34:09 +0700
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06.05.2016 23:29, Yuri пишет:
> When Marvell Yukon card is active on the desktop system, mouse periodically stops, sometimes for seconds. I think this also makes the system impaired in some other ways.
>
> The offending device:
> mskc0: <Marvell Yukon 88E8056 Gigabit Ethernet> port 0xd800-0xd8ff mem 0xfbdfc000-0xfbdfffff irq 18 at device 0.0 on pci6
> msk0: <Marvell Technology Group Ltd. Yukon EC Ultra Id 0xb4 Rev 0x03> on mskc0
>
> When I replaced it with Linksys sk0 the problem is completely gone:
> skc0: <Linksys EG1032 Gigabit Ethernet> port 0xe800-0xe8ff mem 0xfbefc000-0xfbefffff irq 17 at device 1.0 on pci8
>
> There were few other problem reports about Marvell Yukon cards in this ML in 2015-2016.

Verify if your mouse (USB one?) is using IRQ 18 too.
"vmstat -ai" command would be helpful.