From mboxrd@z Thu Jan  1 00:00:00 1970
From: zhaolei@cn.fujitsu.com (Zhaolei)
Date: Tue, 30 Dec 2008 09:52:05 +0800
Subject: [ltt-dev] [PATCH v3 0/1] add tracepoints of panic and kexec
In-Reply-To: <20081218184745.GA20815@Krystal>
References: <4949BD17.2000704@cn.fujitsu.com> <4949BD46.3020806@cn.fujitsu.com>
	<20081218041402.GA21563@Krystal> <4949E1C3.7000308@cn.fujitsu.com>
	<4949E1F1.7020505@cn.fujitsu.com> <20081218184745.GA20815@Krystal>
Message-ID: <49597EC5.7030400@cn.fujitsu.com>

* Mathieu Desnoyers wrote:
> * Zhaolei (zhaolei at cn.fujitsu.com) wrote:
>> Instrumentation of following panic and kexec related events are added:
>> 	panic
>> 	kernel_kexec
>> 	crash_kexec
>>
>> It is useful for build flight-recorder program based on lttng infrastructure.
>>
> 
> Hrm, I'm wondering if these are events we are interested to trace or if
> you plan to use these tracepoints as hooks into the kernel to connect
> the tracer infrastructure to it ?
Hello, Mathieu,

I modified this patch to use notifier.h on your suggest.
Is is useful for flight-recorder, I think.

B.R.
Zhaolei
> 
> If you plan to use those as hooks into the kernel, we should probably
> consider adding notifiers instead (notifier.h). This is the "blessed"
> way to be called upon such events.
> 
> Mathieu
>