Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support

[Aravinda Prasad]

On Thursday 04 August 2016 08:29 AM, Eric W. Biederman wrote:
> Hari Bathini <hbathini@xxxxxxxxxxxxxxxxxx> writes:
> 
>> This RFC patch set supports filtering container specific events
>> when perf tool is executed inside a container. The patches apply
>> cleanly on v4.7.0-rc7
>>
>> Changes from v1:
>> 1/3. Revived earlier approach[1] with cgroup namespace instead
>>      of pid namespace
>> 2/3. New patch that adds instance support for uprobe events in
>>      tracefs filesystem
>> 3/3. New patch that adds "newinstance" mount option for tracefs
>>      filesystem
>        "newinstace" ick no.
> 
> I see no justification anywhere why the perf cgroup is not enough for
> this.

perf cgroup is not enough for uprobes, because even with perf cgroups a
user within a container can still list/delete uprobes registered in
other containers.

Regards,
Aravinda

> 
> Eric
> 

-- 
Regards,
Aravinda