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

From Aravinda Prasad <aravinda@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support
Date 2016-08-04 16:50 +0200
Message-ID <s2s89-24U-1@gated-at.bofh.it> (permalink)
References <rZEyR-4Oy-5@gated-at.bofh.it> <s2hmp-3er-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thursday 04 August 2016 08:29 AM, Eric W. Biederman wrote:
> Hari Bathini <hbathini@linux.vnet.ibm.com> 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

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[RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support Hari Bathini <hbathini@linux.vnet.ibm.com> - 2016-07-27 23:30 +0200
  [RFC PATCH v2 1/3] perf: filter container events based on cgroup  namespace Hari Bathini <hbathini@linux.vnet.ibm.com> - 2016-07-27 23:30 +0200
  Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support ebiederm@xmission.com (Eric W. Biederman) - 2016-08-04 05:20 +0200
    Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support Aravinda Prasad <aravinda@linux.vnet.ibm.com> - 2016-08-04 16:50 +0200
      Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support ebiederm@xmission.com (Eric W. Biederman) - 2016-08-04 20:50 +0200
        Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support Aravinda Prasad <aravinda@linux.vnet.ibm.com> - 2016-08-04 21:20 +0200

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