[Pvfs2-users] Problem mounting iso files saved on PVFS2

Murali Vilayannur murali.vilayannur at gmail.com
Tue Feb 20 02:38:57 EST 2007


Hi Mark,
Can you configure pvfs2 with an extra option
--enable-kernel-sendfile
in addition to your usual options? That should fix this issue.
Loopback requires the underlying FS to support sendfile..
By default, configure disables this option since noone seems to want
this feature (The only other use-case was with Apache which can be
configured to not use sendfile).
thanks!
Murali

On 2/19/07, Mark Van De Vyver <mvyver at gmail.com> wrote:
> Hi,
> I am unable to mount an iso file that is saved on PVFS2 (v1.5.1).
> If I copy the iso file from the PVFS2 area to a ext3 formated area I
> can mount the iso file.
>
> The mount command used is:
>
> mount -t iso9660 -o ro,loop /pvfs2/file.iso /some/dir
> or
> mount -t iso9660 -o ro,loop=/dev/loop0 /pvfs2/file.iso /some/dir
>
> The error message I see is:
>
> ioctl: LOOP_SET_FD: Device or resource busy.
> mount: failed setting up loop device
>
> The /tmp/pvfs2-client.log file is empty.
>
> Should it be possible to mount an iso file that is saved to pvfs2?
> Is there some incorrect setting I have?
> My PVFS2 setup is the default Rocks Cluster Roll settings. One
> metaserver and two Compute-I/O nodes.
>
> Appreciate any suggestions.
> Regards
> Mark
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