Re: [Gumstix-users] no space left on device - jff2 problem

[Alexandre P. N. <al...@om...>]

Roland Ambrosch escreveu:

>hi,
>
>well I freed 160kB and even cannot create files.
>One extra poblem I have now is, that I moved /etc/services instead of
>copying it and can't get ssh access through USB after a reboot :).
>
>Is there a way to check the filesystem, like fsck does normally?
>When will the "free" disk space really be freed? During reboot? During remount?
>
>best regards,
>roland
>
>  
>


The jffs2 has a garbage collector, I'm not sure when it runs, but in 
order for it to run it is necessary to have a few sectors free (some 
clain one is enough, other that it requires at least three). In other 
words, full space is not a condition jffs2 handles very well. AFAIK 
there's not a fsck tool for it, but you can extract your files and 
recreate the filesystem from scratch (yes, I know, that sucks). I'm not 
sure freeing 160k is enough, I guess it would depend on how the deleted 
files were spread over the sectors.

I guess you should try to fix the ssh startup first, and then moving 
around (via scp) a lot of your files on the gumstix (try to get at least 
400kb free), and then trying to copy then back.

When I faced the same problem, jffs2 behaved erratically, sometimes I 
couldn't even delete files, other times it suceeded, that until I got 
rid of a log file and then it could use that space for whatever it 
needed it to.

- Alexandre