linux-kernel - Re: [RFC] how to perform a safe NMI stack trace on all CPUs on x86?

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Date:	Wed, 13 May 2015 10:22:46 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	"王龙" <wanglong@...qinren.net>
Cc:	"jkosina" <jkosina@...e.cz>,
	"paulmck" <paulmck@...ux.vnet.ibm.com>,
	"pmladek" <pmladek@...e.cz>, "dzickus" <dzickus@...hat.com>,
	"johannes" <johannes@...solutions.net>,
	"koct9i" <koct9i@...il.com>, "tglx" <tglx@...utronix.de>,
	"mingo" <mingo@...hat.com>, "hpa" <hpa@...or.com>,
	"x86" <x86@...nel.org>, "atomlin" <atomlin@...hat.com>,
	"akpm" <akpm@...ux-foundation.org>,
	"sasha.levin" <sasha.levin@...cle.com>,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"peifeiyue" <peifeiyue@...wei.com>,
	"long.wanglong" <long.wanglong@...wei.com>,
	"morgan.wang" <morgan.wang@...wei.com>
Subject: Re: [RFC] how to perform a safe NMI stack trace on all CPUs on x86?

On Wed, 13 May 2015 22:14:54 +0800
"王龙" <wanglong@...qinren.net> wrote:


> context. But how do we fix this problem in older version of kernel(eg, 3.10 stable)? 
> The 3.10 stable has no "switch printk routine" and "seq_buf" infrastructures.
> 
> Could anyone give me some ideas?
> 

Backport the necessary patches.

-- Steve
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