v1.10.0 swapon: swapfile has holes - blocksize ?

[Jonathan Moore]

I quickly downloaded and built BusyBox v1.10.0. But it still gave the same "hole" problem. See below.

Are there any debug flags I can turn on ? I'll start going through the documentation. I'm relatively new to BusyBox, and I'm wondering if I'm just missing something out required to create a swapfile.

I made BusyBox using the following commands:

make defconfig
export ARCH=powerpc
export CROSS_COMPILE=ppc_6xx-
PATH=$PATH:/home/jm0069/ws/MCU/MCU_dev/MCU/Tools/ELDK/usr/bin/
make

/var/tmp $ dd if=/dev/zero of=swapfile bs=1M count=20
20+0 records in
20+0 records out
/var/tmp $ ls -l
-rw-r--r--    1 root     0        20971520 Jan  2 08:31 swapfile
/var/tmp $ mkswap swapfile
Setting up swapspace version 1, size = 20967424 bytes
/var/tmp $ swapon swapfile
swapon: swapfile has holes
swapon: swapfile: Invalid argument
/var/tmp $ swapon --help
BusyBox v1.10.0 (2008-03-26 17:58:17 CET) multi-call binary

Usage: swapon [-a] [DEVICE]

Start swapping on DEVICE

Options:
        -a      Start swapping on all swap devices

/var/tmp $

Regards,
Jon.

Ubidyne GmbH
Lise-Meitner-Straße 14
D-89081 Ulm

mail      jonathan.moore at ubidyne.com
web       www.ubidyne.com
 
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-----Original Message-----
From: Bernhard Fischer [mailto:rep.dot.nop at gmail.com] 
Sent: 26 March 2008 15:14
To: Jonathan Moore
Cc: busybox at busybox.net
Subject: Re: swapon: swapfile has holes - blocksize ?

On Wed, Mar 26, 2008 at 02:43:04PM +0100, Jonathan Moore wrote:
>I'm trying to setup a simple swapfile, using the commands shown below.
> 
>I'm having trouble with swapon. I've read some previous posting regarding blocksize, but I've not been able to determine if this is an issue requiring a fix. Should this be expected with BusyBox version 1.7.1, ppc32 ? I've tried various blocksizes, but still the hole issue remains.

Can you reproduce this with the current release (1.10.0) or, even better, with svn trunk?

TIA,