Today I upgraded KTorrent to version 4.0.0 and noticed a strange error in two of the torrents I am seeding:

Error: Not Enough free space for ....

An interesting fact is that these two torrents contain files that are > 4 GB. They are 100% downloaded and there is a plenty of space in that partition.

Partition FS is ext3, distro: Arch 32bit, DE: KDE 4.4.4

This is fixed in libktorrent 1.0.1, which is going to be released today.