[PATCH 2/6] pstore: Add event tracing support

Kees Cook keescook at chromium.org
Mon Sep 17 07:54:49 PDT 2018

On Sun, Sep 16, 2018 at 6:55 AM, Joel Fernandes <joel at joelfernandes.org> wrote:
> On Sun, Sep 16, 2018, 12:08 AM Sai Prakash Ranjan
> <saiprakash.ranjan at 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.


Kees Cook
Pixel Security

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