Re: Kernel: /dev/ram1 (rd.c) not releasing unused memory automatically any more?

From: Daniel Kabs (daniel.kabs_at_gmx.de)
Date: 11/14/05 

Date: Mon, 14 Nov 2005 17:07:21 +0100

Hello Peter,

Peter T. Breuer wrote:
> It doesn't - your test results are not what you think ...

Mh, maybe they are monsters from a foreign planet trying to rule the
world? SCNR.

>>My machine runs kernel 2.2.9, has 128 MBytes of RAM available and no
>>swap partition mounted.
>
> My machine runs 2.2.15

On 2.2.15, the ram disk may exhibit a completely different behaviour.
But that's not important in your case, as we'll see below.

>>Now I create the ram disk, mount it, allocate it by creating a huge file
>>and delete the file.
>>$ mke2fs -b 1024 -m 1 /dev/ram1 65536
>
>
> Uh, ram disks are limited in size. I think 8MB is the max.

Thinking is not knowing.

> mke2fs 1.18-e2c036, 13-Dec-1999 for EXT2 FS 0.5c, 99/06/11
> mke2fs: Filesystem larger than apparent filesystem size.
>(says "yes" to the question and miles of horrible errors follow)
>
> [remaining drool deleted]

I *can* create a ram disk with more than 8 MB in size. If you can't,
then sorry, we can stop right here as you will not be able to reproduce
the test. Apart from this, you seem reluctant to contribute anything
remote helpful to this topic.

Thank you - NOT!

Bye now,
Daniel