linux-kernel - Re: kernel: 3.1-rc4: disk tracing query [SOLVED]

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Date:	Mon, 5 Sep 2011 18:50:13 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	linux-kernel@...r.kernel.org
cc:	Alan Piszcz <ap@...arrain.com>
Subject: Re: kernel: 3.1-rc4: disk tracing query [SOLVED]



On Mon, 5 Sep 2011, Justin Piszcz wrote:

> Hello,
>
> I found that samba seems to stat() the filesystems that are shared out even 
> if you are not accessing the ones in question, e.g.:
>
> /raid
> /home/user
>
> If I access the server by \\name it will check all of the directories and 
> thus wake the raid.
> For now I've disabled samba to stop this behavior.
>
> However, I am still noticing my raid waking up from time to time, I've tried 
> using gresecurity to track down what is getting exec()'d before it wakes but 
> I have not had any luck finding out what it is-- no useful notes in the raid 
> ctrl logs either.
>
> Is there a way I can get the kernel to log what program/syscall/etc is trying 
> to access a particular block device so I can find out what is causing the 
> raid to wake up?
>
> Justin.
>

Hello,

Someone has replied to me off-list, it is:

echo 1 >/proc/sys/vm/block_dump

Thanks,

Justin.


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