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From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Kees Cook <keescook@chromium.org>,
	Joel Fernandes <joel@joelfernandes.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
	Ingo Molnar <mingo@redhat.com>, Laura Abbott <labbott@redhat.com>,
	Anton Vorontsov <anton@enomsg.org>,
	Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org, Colin Cross <ccross@android.com>,
	Jason Baron <jbaron@akamai.com>, Tony Luck <tony.luck@intel.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Joe Perches <joe@perches.com>, Jim Cromie <jim.cromie@gmail.com>,
	Rajendra Nayak <rnayak@codeaurora.org>,
	Vivek Gautam <vivek.gautam@codeaurora.org>,
	Sibi Sankar <sibis@codeaurora.org>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-arm-msm@vger.k
Subject: Re: [PATCH 2/6] pstore: Add event tracing support
Date: Mon, 17 Sep 2018 22:47:05 +0530	[thread overview]
Message-ID: <edd40dff-fc1e-6370-0839-7672ada4db54@codeaurora.org> (raw)
In-Reply-To: <CAGXu5jLkE+mZkVSFPeOq75im0Kozm+NzfqL9CD-OMe7b7=3O5g@mail.gmail.com>

On 9/17/2018 8:24 PM, Kees Cook wrote:
> On Sun, Sep 16, 2018 at 6:55 AM, Joel Fernandes <joel@joelfernandes.org> wrote:
>> On Sun, Sep 16, 2018, 12:08 AM Sai Prakash Ranjan
>> <saiprakash.ranjan@codeaurora.org> wrote:
>>>
>>> On 9/9/2018 1:57 AM, Sai Prakash Ranjan wrote:
>>>> Currently pstore has function trace support which can be
>>>> used to get the function call chain with limited data.
>>>> Event tracing has extra data which is useful to debug wide
>>>> variety of issues and is heavily used across the kernel.
>>>>
>>>> Adding this support to pstore can be very helpful to debug
>>>> different subsystems since almost all of them have trace
>>>> events already available. And also it is useful to debug
>>>> unknown resets or crashes since we can get lot more info
>>>> from event tracing by viewing the last occurred events.
>>>
>>> Anyone here?
>>
>> Sorry for the top post. I've been wanting to do this as well for some time.
>> It's quite useful. I am out of office this week and away from work machine.
>> I will take a look at your patches next week once I'm back at work. Thanks.
> 
> If Steven agrees this shouldn't live in ftrace directly and Joel
> reviews these patches, I think it should be fine. I'm travelling, but
> I can review it hopefully later this week.
> 

Thank you Kees.

- Sai

  reply	other threads:[~2018-09-17 17:17 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-08 20:27 [PATCH 0/6] Tracing register accesses with pstore and dynamic debug Sai Prakash Ranjan
2018-09-08 20:27 ` [PATCH 1/6] dt-bindings: ramoops: Add event-size property Sai Prakash Ranjan
2018-09-08 20:27 ` [PATCH 2/6] pstore: Add event tracing support Sai Prakash Ranjan
2018-09-11 10:46   ` Sai Prakash Ranjan
2018-09-17 17:38     ` Stephen Boyd
2018-09-17 19:43       ` Sai Prakash Ranjan
2018-09-16  7:07   ` Sai Prakash Ranjan
2018-09-16 13:55     ` Joel Fernandes
2018-09-17 14:54       ` Kees Cook
2018-09-17 17:17         ` Sai Prakash Ranjan [this message]
2018-09-17 17:13       ` Sai Prakash Ranjan
2018-09-17 23:04     ` Steven Rostedt
2018-09-18  6:24       ` Sai Prakash Ranjan
2018-09-17 23:34   ` Steven Rostedt
2018-09-18 17:52     ` Sai Prakash Ranjan
2018-09-18 20:44       ` Steven Rostedt
2018-09-18 21:13         ` Sai Prakash Ranjan
2018-09-22  6:48           ` Sai Prakash Ranjan
2018-09-22  9:05   ` Joel Fernandes
2018-09-22 16:37     ` Sai Prakash Ranjan
2018-09-22 17:32       ` Sai Prakash Ranjan
2018-09-22 17:45       ` Sai Prakash Ranjan
2018-09-23 15:33       ` Sai Prakash Ranjan
2018-09-25 20:37         ` Joel Fernandes
2018-09-25 20:39           ` Joel Fernandes
2018-09-25 20:40             ` Joel Fernandes
2018-09-26  9:52               ` Sai Prakash Ranjan
2018-09-08 20:27 ` [PATCH 3/6] tracing: Add tp_pstore cmdline to have tracepoints go to pstore Sai Prakash Ranjan
2018-09-25 21:25   ` Joel Fernandes
2018-09-26  9:46     ` Sai Prakash Ranjan
2018-10-08 14:16       ` Sai Prakash Ranjan
2018-10-08 14:36         ` Steven Rostedt
2018-10-08 22:40           ` Joel Fernandes
2018-10-09 18:22             ` Sai Prakash Ranjan
2018-10-10 19:37               ` Steven Rostedt
2018-09-08 20:27 ` [PATCH 4/6] arm64/io: Add tracepoint for register accesses Sai Prakash Ranjan
2018-09-08 20:27 ` [PATCH 5/6] arm64/io: Add header for instrumentation of io operations Sai Prakash Ranjan
2018-09-17 23:39   ` Steven Rostedt
2018-09-18  7:10     ` Sai Prakash Ranjan
2018-09-18 11:47       ` Will Deacon
2018-09-18 12:43         ` Sai Prakash Ranjan
2018-09-08 20:27 ` [PATCH 6/6] dynamic_debug: Add flag for dynamic event tracing Sai Prakash Ranjan
2018-09-11 15:11 ` [PATCH 0/6] Tracing register accesses with pstore and dynamic debug Will Deacon
2018-09-11 16:11   ` Sai Prakash Ranjan
2018-10-20  5:25 ` Joel Fernandes
2018-10-20  6:32   ` Sai Prakash Ranjan
2018-10-20 16:27     ` Joel Fernandes
2018-10-21  3:46       ` Sai Prakash Ranjan
2018-10-21  4:59         ` Sai Prakash Ranjan
2018-10-21  5:09         ` Joel Fernandes

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