linux-kernel - Re: itrace: An interrupts tracing tool

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Message-ID: <20140922100423.410e3644@mats-desktop>
Date:	Mon, 22 Sep 2014 10:04:23 +0200
From:	Mats Liljegren <mats.liljegren@...a.com>
To:	duzhiping <duzhiping.du@...wei.com>
CC:	<rostedt@...dmis.org>, <mingo@...hat.com>,
	<linux-kernel@...r.kernel.org>, <wangnan0@...wei.com>
Subject: Re: itrace: An interrupts tracing tool

On Mon, 22 Sep 2014 11:35:43 +0800
duzhiping <duzhiping.du@...wei.com> wrote:

>   Many functions depends on interrupts in Linux system, when the
> interrupts occur an error, it may cause fatal problem.
> 
>   Then, we should record their trace when interrupts in and out. The
> recorded information could help us analyze interrupts errors.
> 
>   Itrace is such an interrupts trace tool we have developed, it
> provides config interface and trace information through "procfs".
> 
>   Do you think it has the value to upstream?

Where can I look at the code?

What makes it different from existing tools, e.g. ftrace?

/Mats
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