linux-kernel - Re: why can't I remove a kernel module (or: what uses a given module)?

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Date:	Sun, 03 Dec 2006 20:59:10 +0100
From:	Tomasz Chmielewski <mangoo@...g.org>
To:	Ross Vandegrift <ross@...listi.us>
Cc:	Andreas Schwab <schwab@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: why can't I remove a kernel module (or: what uses a given module)?

Ross Vandegrift wrote:
> On Sun, Dec 03, 2006 at 12:58:24PM +0100, Tomasz Chmielewski wrote:
>> You mean the "Used by" column? No, it's not used by any other module 
>> according to lsmod output.
>>
>> Any other methods of checking what uses /dev/sda*?
> 
> There's a good chance that if it was loaded at system boot, hald or
> udev may be doing something with it.

This machine doesn't have hal; when I kill udevd still doesn't help.

Yes, something's using that drive, be it a program, a module (unlikely), 
or something that is compiled directly in the kernel (for example, 
md/raid1).
But what is it?

Kernel knows it, as it refuses to remove the module (via rmmod), but how 
to tell kernel to share this knowledge with me?

-- 
Tomasz Chmielewski
http://wpkg.org

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