[ltt-dev] [RFC UST and LTTng] Daemon model proposal

[Nils Carlson]

Hi David, just one little question below...


On Jan 28, 2011, at 9:20 PM, David Goulet wrote:

>
>
> On 11-01-20 09:36 AM, Michel Dagenais wrote:
>>     Buffers creation - creates shared memory for the tracing buffers.
>>
>> -->  Why is buffer creation the responsability of the sessiond?  
>> Ressource accounting, preventing abuses, is easier if the traced  
>> application via libust does the buffer creation!
>>
>
> The main reason was because the application cannot set the shared  
> memory with the read access to the tracing group. (unless the apps  
> uid is in the tracing group).
>

I'm not quite with you here... Shouldn't all apps that we want to  
trace have to be in the tracing group? Or is this unreasonable...

I think having a policy where all users who need to trace are members  
of the tracing group as are all applications that can be traced makes  
a lot of sense....

/Nils