Error while copying file on a new filesystem

Error while copying file on a new filesystem

[Sumit Narayan]

Hi,

I am involved in development of a new file system. I can successfully
write/read on the filesystem partition. But when I copy or move a
file, I get this error:

[root@sumit /mnt/newfs]# mv /root/1 .
mv: writing `/mnt/newfs/1': No space left on device

And although I get this error, the file is successfully copied to the
directory and I can read the file properly after that.

Can somebody please explain why this is happening. 'df' shows that
there are free available inodes/disk space. I am using device
virtualization to provide a single mount point for multiple devices.

Please let me know if you may require any further investigation logs.

thanks in advance,

with best regards,
Sumit

Re: Error while copying file on a new filesystem

[Leonid Kalev]

Sumit Narayan wrote:

>Hi,
>
>I am involved in development of a new file system. I can successfully
>write/read on the filesystem partition. But when I copy or move a
>file, I get this error:
>
>[root@sumit /mnt/newfs]# mv /root/1 .
>mv: writing `/mnt/newfs/1': No space left on device
>
>And although I get this error, the file is successfully copied to the
>directory and I can read the file properly after that.
>
>Can somebody please explain why this is happening. 'df' shows that
>there are free available inodes/disk space. I am using device
>virtualization to provide a single mount point for multiple devices.
>
>  
>
I would venture to guess that your filesystem handler for 'write' 
returned 0 as the number of bytes written, even though it wrote all the 
data successfully (as you say, you can read it afterwards).

regards,

Leo