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Subject: Re: Periodical interrupt storm when playing game with USB keyboard
To: Johannes Lundberg <johalun0@gmail.com>, Ian Lepore <ian@freebsd.org>
Cc: freebsd-current <freebsd-current@freebsd.org>
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From: Hans Petter Selasky <hps@selasky.org>
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Date: Mon, 22 Jan 2018 09:20:25 +0100
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On 01/21/18 23:57, Johannes Lundberg wrote:
> Thanks for the further explanation.
> I curious as to where the problem might be though.. It is the game's
> binary-only Linux executable (Unreal Engine 2.5), Linux SDL 1.2, or on the
> FreeBSD side? Haven't experienced anything similar with Quake3...
> Switching to periodic timer feels like overkill but it does the job as a
> work around.

You might get a clue if you ktrace the binary and look for timer or 
system calls which have a timeout.

--HPS