Re: circular locking: /proc/sys/vm/drop_caches

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To: Ingo Molnar <[email protected]>

Subject: Re: circular locking: /proc/sys/vm/drop_caches

From: Frederik Deweerdt <[email protected]>

Date: Fri, 23 Feb 2007 09:40:03 +0000

Cc: Andrew Morton <[email protected]>, [email protected]

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On Fri, Feb 23, 2007 at 07:35:38AM +0100, Ingo Molnar wrote:
> 
> Andrew,
> 
> i just got the lockdep warning below when doing:
> 
>   echo 3 > /proc/sys/vm/drop_caches
> 
> is this a known quirk in the drop_caches code?
> 
This is known, yes: http://lkml.org/lkml/2006/12/4/19

Regards,
Frederik
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References:
- circular locking: /proc/sys/vm/drop_caches
  - From: Ingo Molnar <[email protected]>

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