/tmp almost full 94% on solaris 11

Hi,

we have issue related two file system that almost FULL 94%

the output after executed df -h command as below :

root@drcdbdigi:~# df -h /tmp

Filesystem             Size   Used  Available Capacity  Mounted on

swap                    40G    37G       2.5G    94%    /tmp

root@drcdbdigi:~# df -h /system/volatile

Filesystem             Size   Used  Available Capacity  Mounted on

swap               

if we check in /tmp, there is a directory "hsperfdata_oracle" with size 40K" but why /tmp is Full 94% ?

root@drcdbdigi:/tmp# ls -l

total 16

drwxr-----   2 oracle   oinstall     179 Oct  2 14:43 hsperfdata_oracle

root@drcdbdigi:/tmp# du -sh hsperfdata_oracle

  40K   hsperfdata_oracle  <-----

Also : I found  the reference to solve this case