free space of root partition decreases unaccountably by some 1024 blocks on every umount+linux shutdown

[Eric Sandeen]

Roland Eggner wrote:
> History which lead to actual problem
> ------------------------------------
> On July 4th I switched from kernel 2.6.29.5 to 2.6.29.6.
> 
> On July 18th I noticed the first time this unaccountable decrease of free space of my root partition /dev/hda7:
> For at least several boot-shutdown-cycles it has decreased on every cycle by some 1020 … 1030 blocks from originally above 100 MB to 96 MB.
> Expected change at most ±1 block.  Neither xfs_check nor xfs_repair -dn could detect any flaws.

Maybe I missed it in the email, but how have you ruled out the
possibility that files are simply growing, thereby using the space?

Have you compared

# ls -laR /

and/or

# du -hcx /

between a couple of boots?

-Eric