RELENG_7 jerky mouse and skipping sound

[[LoN]Kamikaze]

Anish Mistry wrote:
> On Thursday 18 October 2007, Marc Fonvieille wrote:
>> On Wed, Oct 17, 2007 at 12:28:30PM -0400, Anish Mistry wrote:
>>> I just updated to RELENG_7 from 6.2 and I'm running into some
>>> really annoying issues with jerky mouse movement and skipping
>>> sound.  This seems to be similar to:
>>> Re: SCHED_4BSD in RELENG_7 disturbs workflow
>>> This happens both with 4BSD and ULE.
>>>
>>> I seems to happen when I'm compiling ports and a new cc/bzip2/sh
>>> process fires off (I'm just watching top), I'll get the
>>> skip/freezeup.
>> [...]
>>
>> Using ULE and UP kernel (i.e. without SMP etc.) helped a bit the
>> things but it's still very annoying to use firefox during ports
>> build.  I see this lag/freeze on all boxes I use with 7.0, but it's
>> true that with a fast machine people can ignore the problem, it's
>> less obvious than with a 1GHz box for example.
> Yeah, I'm still seeing this behavior.  Does anyone have suggestions on 
> debugging?
> 
> Thanks,
> 

I did post the solution in this thread.