VirtualBox-4.1.16: causes 100% CPU on the host system

[Rusty Nejdl]

On 2012-06-11 01:01, Bernhard Fröhlich wrote:
> On Mo., 11. Jun. 2012 00:17:04 CEST, Yuri <yuri at rawbw.com> wrote:
>
>> I observe this on the idle Ubuntu64 guest.
>>
>> 84759 yuri                     26   20       0   2814M   2157M 
>> uwait     4   52:14 101.46%
>> VirtualBox // corresponds to Ubuntu64
>>     2661 root                       1   28       0   1133M 73736K 
>> select   3 395:05 13.87%
>> Xorg 10915 yuri                       5   20       0     798M 84536K 
>> uwait     1   37:55
>> 5.08% kwin 11375 yuri                       3   28       0     506M 
>> 57560K kqread   6
>> 23:42 4.88%   kdeinit4
>> 84886 yuri                     25   20       0   2709M   2158M 
>> select   4   16:34 0.98%
>> VirtualBox   // corresponds to Ubuntu32
>
> Looks good. No bug here.
>
> Seriously what do you think that this mail is? A bug report? Random
> fact of the day?
>
> I know that writing good bugreports that are of any use is hard but
> you have send quite some mails and they are almost all worthless.
>
> You can try to pause the machine - wait a few minutes - resume it and
> it will not require 100% cpu anymore right?

The only time I see this behavior is when the guest is actually busy 
doing something.  Not much detail is provided here as Bernard indicated 
so it is hard to recommend or troubleshoot in any way.

Sincerely,
Rusty Nejdl