Hi again the mail-server in the student residence was down for 2 days,but here are the results vanila 2.4.4 lvm-1.0 and vanila 2.4.5 lvm-1.0 ---------------------------------------------------------- mke2fs and mkreiserfs segfaults , nothing in 'demsg | ksymoops' vanila 2.4.4 lvm-1.0 and vanila 2.4.5 lvm-1.0 with JFS-patch aplied ---------------------------------------------------------------------------------------- mke2fs and mkreiserfs segfaults, nothing in 'demsg | ksymoops' jfs seems to work any ideas probably from the beginning the name of the thread was wrong it had to be more accurate and i'm wondering whether there is smbd with working LVM over _linear software RAID_ i'm going to checkout the XFS-tree and the LVM-tree ( there are raid fixes from Neil Brown in 2.4.10pre5 ) and try again and run the benchmarks over the weekend