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From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] Eliminate task stack trace duplication.
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Date: Tue, 03 May 2011 14:10:57 -0700
In-Reply-To: <BANLkTi=C9qpkfM1fjeCD_Z_-2rYUifiaUg@mail.gmail.com> (Ying Han's
	message of "Tue, 3 May 2011 13:09:02 -0700")
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To: Ying Han <yinghan@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Minchan Kim <minchan.kim@gmail.com>, Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>, Balbir Singh <balbir@linux.vnet.ibm.com>, linux-mm@kvack.org

Ying Han <yinghan@google.com> writes:
>>
>> Also when you can't get it fall back to something else.
>
> Can you clarify that?

The debugging paths usually have a lock timeout and fall back
to not needing the lock (= not use a hash) when it expires.
This way you guarantee output even if the system
is already quite confused.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only

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