From: Aravinda Prasad <aravinda@linux.vnet.ibm.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>,
daniel@iogearbox.net, peterz@infradead.org,
linux-kernel@vger.kernel.org, acme@kernel.org,
alexander.shishkin@linux.intel.com, mingo@redhat.com,
paulus@samba.org, ebiederm@xmission.com, kernel@kyup.com,
viro@zeniv.linux.org.uk, ananth@in.ibm.com
Subject: Re: [RFC PATCH v2 2/3] tracefs: add instances support for uprobe events
Date: Thu, 4 Aug 2016 20:04:34 +0530 [thread overview]
Message-ID: <57A3527A.2060108@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160804100846.5f36a00a@gandalf.local.home>
On Thursday 04 August 2016 07:38 PM, Steven Rostedt wrote:
> On Thu, 4 Aug 2016 19:16:03 +0530
> Aravinda Prasad <aravinda@linux.vnet.ibm.com> wrote:
>
>
>> Separation is based on the context in which the function is called.
>> Hence, containers can see only those kernel functions that are
>> triggered/invoked by the processes running inside that container and
>> should not see other kernel functions, for example, called by RCU grace
>> period kthread or any other kthread.
>>
>
> What about interrupts and softirqs? They run under the container
> process's context, but service other processes outside the container.
> Same goes for trace events.
Interrupts and softirqs are tricky. We have not yet figured that out.
Same for trace events. Had similar discussion for trace events with
Brendan:
http://www.spinics.net/lists/linux-perf-users/msg03018.html
(Last section of the mail is on trace event)
Regards,
Aravinda
>
> -- Steve
>
--
Regards,
Aravinda
next prev parent reply other threads:[~2016-08-04 14:34 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-27 21:27 [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support Hari Bathini
2016-07-27 21:27 ` [RFC PATCH v2 1/3] perf: filter container events based on cgroup namespace Hari Bathini
2016-07-27 21:27 ` [RFC PATCH v2 2/3] tracefs: add instances support for uprobe events Hari Bathini
2016-08-01 21:45 ` Steven Rostedt
2016-08-02 17:27 ` Hari Bathini
2016-08-02 17:32 ` Hari Bathini
2016-08-02 17:49 ` Steven Rostedt
2016-08-03 19:30 ` Aravinda Prasad
2016-08-03 20:10 ` Steven Rostedt
2016-08-03 20:16 ` Aravinda Prasad
2016-08-04 1:04 ` Steven Rostedt
2016-08-04 13:46 ` Aravinda Prasad
2016-08-04 14:08 ` Steven Rostedt
2016-08-04 14:34 ` Aravinda Prasad [this message]
2016-07-27 21:27 ` [RFC PATCH v2 3/3] tracefs: add 'newinstance' mount option Hari Bathini
2016-08-04 2:54 ` Eric W. Biederman
2016-08-04 12:26 ` Hari Bathini
2016-08-04 14:12 ` Eric W. Biederman
2016-08-04 2:59 ` [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support Eric W. Biederman
2016-08-04 14:48 ` Aravinda Prasad
2016-08-04 18:27 ` Eric W. Biederman
2016-08-04 19:11 ` Aravinda Prasad
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