When using the attachment function following java execption is shown after pressing Attach button:

The following error(s) occurred:
•java.io.IOException: Processing of multipart/form-data request failed. No space left on device

Steps to reproduce:
Open attachment function
Browse and upload file (file name is printed in "upload file" box).
Press Attach button.

Have tried three different files several times and same fault occurs every time.

Have following licens information:
License Information for Confluence

Confluence 5.5

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•atlassian-image-consumer (com.atlassian.image:atlassian-image-consumer:jar:1.0.1)
•c3p0:JDBC DataSources/Resource Pools (c3p0:c3p0:jar:0.9.1.2)
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•Hibernate 2.1.8 (Atlassian fork) (hibernate:hibernate:jar:2.1.8-atlassian-21)
•image4j (org.jclarion:image4j:jar:0.7)
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•jtds (net.sourceforge.jtds:jtds:jar:1.2.2)
•PDF renderer - Atlassian patched (pdf-renderer:pdf-renderer:jar:1.13-atlassian-6)
•Streaming API for XML (javax.xml.stream:stax-api:jar:1.0-2)
•syntaxhighligher (1.5)
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