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DateSun, 3 Dec 2006 18:42:02 -0500
FromJim Crilly <>
SubjectRe: why can't I remove a kernel module (or: what uses a given module)?
On 12/03/06 08:59:10PM +0100, Tomasz Chmielewski wrote:
> 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?
> 

Have you checked to make sure there's no swap partitions on it being
automatically activated at boot? Also, have you checked the output of lsof?

Jim.
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