linux-kernel - Re: kmemleak suggestion (long message)

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Message-ID: <20090626074847.GA3451@localdomain.by>
Date:	Fri, 26 Jun 2009 10:48:48 +0300
From:	Sergey Senozhatsky <sergey.senozhatsky@...l.by>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: kmemleak suggestion (long message)

On (06/26/09 08:59), Ingo Molnar wrote:
> Date: Fri, 26 Jun 2009 08:59:23 +0200
> From: Ingo Molnar <mingo@...e.hu>
> To: Sergey Senozhatsky <sergey.senozhatsky@...l.by>
> Cc: Catalin Marinas <catalin.marinas@....com>,
> 	Pekka Enberg <penberg@...helsinki.fi>,
> 	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
> 	Andrew Morton <akpm@...ux-foundation.org>,
> 	linux-kernel@...r.kernel.org, linux-mm@...ck.org
> Subject: Re: kmemleak suggestion (long message)
> User-Agent: Mutt/1.5.18 (2008-05-17)
> 
> 
> * Sergey Senozhatsky <sergey.senozhatsky@...l.by> wrote:
> 
> > Hello.
> > 
> > Currently kmemleak prints info about all objects. I guess 
> > sometimes kmemleak gives you more than you actually need.
> 
> It prints _a lot_ of info and spams the syslog. I lost crash info a 
> few days ago due to that: by the time i inspected a crashed machine 
> the tons of kmemleak output scrolled out the crash from the dmesg 
> buffer.
> 
> This is not acceptable.
> 
Agreed.

> Instead it should perhaps print _at most_ a single line every few 
> minutes, printing a summary about _how many_ leaked entries it 
> suspects, and should offer a /debug/mm/kmemleak style of file where 
> the entries can be read out from.
> 
> Ok?
> 
> 	Ingo
> 
Agreed.

	Sergey
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