Hello Rene,

Rene Mayrhofer:
> I currently use aufs from the Debian unstable package version 0+20090302-2.=
> 1=20
> and have a reproducible problem of deleted files not being reclaimed. That =
> is,

I have not released such version of aufs1. Probably it is a version of
debian aufs1 package. So before of all, let's make it clear.

(from READM of aufs1)
----------------------------------------------------------------------
When you have any problems or strange behaviour in aufs, please let me
know with:
- /proc/mounts (instead of the output of mount(8))
- /sys/fs/aufs/* (if you have them)
- /sys/module/aufs/*
- linux kernel version
  if your kernel is not plain, for example modified by distributor,
  the url where i can download its source is necessary too.
- aufs version which was printed at loading the module or booting the
  system, instead of the date you downloaded.
- configuration (define/undefine CONFIG_AUFS_xxx, or plain local.mk is
  used or not)
- kernel configuration or /proc/config.gz (if you have it)
- behaviour which you think to be incorrect
- actual operation, reproducible one is better
- mailto: aufs-users at lists.sourceforge.net
----------------------------------------------------------------------


> the file system size is in use. However, a "du -s /system/ramdisks/var" onl=
> y=20
> shows a few 100 kB to be used. Thus, this seems to be some kind of leak -=20
> memory, inodes, blocks, etc. I have also tried restarting every single daem=

I guess du(1) calls readdir(3) recursively, and stat(2) for every
entires. It means the removed-but-still-alive files are not counted. For
instance aufs XINO files are such files, and the size of these files are
listed in /sys/fs/aufs/si_*/xino. They may be the one you are looking
for. (but I am not sure)


> Is there a problem with our usage? Can this be worked around somehow? If no=
> t,=20
> how stable is aufs2 currently considered to be?

I cannot recognize the problem before you give me the necessary
information. Anyway aufs2 is much better than aufs1, but your kernel
version has to be linux-2.6.27 or later.


J. R. Okajima

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