My "/tmp" directory filled up 64GB virtually overnight!

[B]

Hi,

I am using Kubuntu 8.04 with KDE 3.5.9.  Dolphin is version 0.9.2.  The kernel is 2.6.24-19-generic #1 SMP.   

I have my disk partitioned into three sections; swap, root and home.

Yesterday my 73GB root partition had the following properties;
- Used 6.2GB.
- Available 64GB.

Today my 73GB root partition had the following properties;
- Used 70GB.
- Available 0GB.

After looking through the root partition I found that the "/tmp" directory had ballooned up in size to 64GB.  

The only "new" task that I performed yesterday was mounting a truecrypt volume and copying 20GB of data from the truecrypt volume into my home partition.  The truecrypt volume was on an external disk and is not currently mounted.  I used Dolphin to do the copying.

Anyway, today my "/tmp" directory has the following listing:
:/tmp$ ls -la
total 68
drwxrwxrwt 16 root  root  4096 2008-07-23 10:30 .
drwxr-xr-x 21 root  root  4096 2008-06-24 18:25 ..
-rw-------  1 brian brian    0 2008-07-21 18:51 002zmBUx.torrent.part
drwxr-xr-x  2 brian brian 4096 2008-07-21 22:20 acroread_1000_1000
drwx------  3 brian brian 4096 2008-07-20 18:43 gconfd-brian
drwx------  2 root  root  4096 2008-07-23 10:19 gconfd-root
drwxrwxrwt  2 root  root  4096 2008-07-20 18:43 .ICE-unix
drwx------  2 brian brian 4096 2008-07-23 10:26 kde-brian
drwx------  3 brian brian 4096 2008-07-23 10:41 ksocket-brian
drwx------  2 brian brian 4096 2008-07-23 10:16 orbit-brian
drwx------  2 root  root  4096 2008-07-23 10:19 orbit-root
drwx------  2 brian brian 4096 2008-07-23 10:15 plugtmp
-rw-------  1 brian brian    0 2008-07-22 21:45 plugtmp-1
-rw-------  1 brian brian    0 2008-07-22 21:45 plugtmp-2
-rw-------  1 brian brian    0 2008-07-22 21:45 plugtmp-3
drwx------  2 brian brian 4096 2008-07-20 18:43 seahorse-zsFaLd
drwx------  2 brian brian 4096 2008-07-20 18:43 ssh-HLFXMu5825
-rw-------  1 root  root     0 2008-07-20 18:42 tmp.eRjOvB5698
drwx------  2 brian brian 4096 2008-07-21 15:57 vmware-brian
drwx------  3 brian brian 4096 2008-07-21 09:41 .wine-1000
-r--r--r--  1 root  root    11 2008-07-20 18:42 .X0-lock
drwxrwxrwt  2 root  root  4096 2008-07-20 18:42 .X11-unix

And within "/tmp/kde-brian" is the 64GB.  It had the following listing:
:/tmp/kde-brian$ ls -la
total 66266108
drwx------  2 brian brian        4096 2008-07-23 10:26 .
drwxrwxrwt 16 root  root         4096 2008-07-23 10:30 ..
-rw-------  1 brian brian           0 2008-07-22 19:30 d3lphin0foFDb.tmp
-rw-r--r--  1 brian brian 16947544064 2008-07-22 20:06 d3lphin0foFDb.tmp.part
-rw-------  1 brian brian           0 2008-07-22 19:30 d3lphin3fICgc.tmp
-rw-r--r--  1 brian brian 16947544064 2008-07-22 20:06 d3lphin3fICgc.tmp.part
-rw-------  1 brian brian           0 2008-07-22 19:30 d3lphin89Tehb.tmp
-rw-r--r--  1 brian brian 16947597312 2008-07-22 20:06 d3lphin89Tehb.tmp.part
-rw-------  1 brian brian           0 2008-07-22 19:30 d3lphinoTTEOb.tmp
-rw-r--r--  1 brian brian 16947511296 2008-07-22 20:06 d3lphinoTTEOb.tmp.part
-rw-------  1 brian brian           0 2008-07-23 10:52 konqueror-crash-gHwFna.log
-rw-------  1 brian brian           0 2008-07-23 10:26 konqueror-crash-up3hJa.log
lrwxrwxrwx  1 brian brian          31 2008-07-20 18:44 ksycoca -> /var/tmp/kdecache-brian/ksycoca

As things stand at this point I've deleted the 64GB from "/tmp/kde-brian". 
And, now my 73GB root partition has the following properties it's had for the last several months:
- Used 6.2GB.
- Available 64GB.

For me this is an interesting enough Linux episode to question it.  I would like to know if anyone has a suggestion on what I can do to discover why this directory blossomed into 64GB virtually overnight.

Thank you for your time.

Brian