"Jamie Penman-Smithson" <[EMAIL PROTECTED]> wrote:
> I'm having big problems trying to pin down the cause of spiralling
> disk usage on a partition.
> du -sh shows that /usr is using 5.9 GB:
> $ du -shL /usr
> 5.9G /usr
> However, df shows:
> Filesystem Size Used Avail Capacity Mounted on
> /dev/ad4s1f 47G 43G 131M 100% /usr
> It seems to be eating 3 MB roughly every 4-5 minutes. However,
> repeated uses of du don't show any increased usage. It only appears in
> defiant:/usr$ du -cksmxL * | sort -rn
> 6042 total
> 3015 home
> 965 obj
> 777 local
> 770 jail
> 376 share
> 36 lib
> 32 X11R6
> 28 bin
> 19 libexec
> 15 sbin
> 15 include
> 1 tmp
> 1 ports
> 1 openssl
> 1 libdata
> 1 games
> 1 compat
> My first thought is that the du binary is compromised, but I thought
> that I may be missing something blindingly obvious.
If I remember correctly, the most common reason for this is files that
have been deleted, but have not had all references to them closed (i.e.
For example, program creates a temporary file, then deletes it but does
not _close_ it. This means the filesystem can't free up the used blocks
yet. There's no directory entry, so du doesn't see the usage.
One way to tell would be to reboot the system. If it comes up with
du and df agreeing, then this problem is occurring somewhere. The
trickier step may be to figure out what program is causing it.
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