udisks-daemon eating up all my memory

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http://serverfault.com – I'm operating a little storage server on debian, over the past months I've noticed the process udisks-daemon eating up almost all available memory. Is this just really aggressive caching or a memory leak? uname -a Linux Proto 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux free -m total used free shared buffers cached Mem: 7999 7390 608 0 317 368 -/+ buffers/cache: 6704 1294 Swap: 15621 15621 0 vmstat procs -----------memory---------- ---swap-- -----io---- -s (HowTos)