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DateFri, 27 Feb 2004 09:46:06 -0500
FromTimothy Miller <>
SubjectRe: [RFC][PATCH] O(1) Entitlement Based Scheduler

Peter Williams wrote:
> Timothy Miller wrote:
> 

>>
>>
>> We don't want user-space programs to have control over priority. 
> 
> 
> They already do e.g. renice is such a program.

No one's talking about LOWERING priority here.  You can only DoS someone 
else if you can set negative nice values, and non-root can't do that.

> 
>> This is DoS waiting to happen.
>>
>>> 2. have a user space daemon poll running tasks periodically and 
>>> renice them if they are running specified binaries
>>
>>
>>
>> This is much too specific.  Again, if the USER has control over this
>> list,
> 
> 
> It would obviously be under root control.

And that means if someone wants to run a program which is not on the 
list but which requires (and deserves) higher priority, they cannot.


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