linux-kernel - Re: [PATCH V4] mm: fix kernel crash in khugepaged thread

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Message-ID: <20151116092501.761f31d7@gandalf.local.home>
Date:	Mon, 16 Nov 2015 09:25:01 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Vlastimil Babka <vbabka@...e.cz>
Cc:	yalin wang <yalin.wang2010@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ebru Akagunduz <ebru.akagunduz@...il.com>,
	Rik van Riel <riel@...hat.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	jmarchan@...hat.com, mgorman@...hsingularity.net,
	willy@...ux.intel.com, linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mm@...ck.org
Subject: Re: [PATCH V4] mm: fix kernel crash in khugepaged thread

On Mon, 16 Nov 2015 11:16:22 +0100
Vlastimil Babka <vbabka@...e.cz> wrote:
>
> >> -- Steve  
> > it is not easy to print for perf tools in userspace ,
> > if you use this format ,
> > for user space perf tool, it print the entry by look up the member in entry struct by offset ,
> > you print a dynamic string which user space perf tool don’t know how to print this string .  
> 
> Does it work through trace-cmd?

The two use the same code. If it works in one, it will work in the
other.

-- Steve

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