Jakub, Ingo: Here is a patch for RAID 2.2.14-B1 that fixes the structure size problem on RISC platforms: http://www.engin.umich.edu/caen/systems/Linux/code/patches/raid-2.2.14-B1-fix.patch It should remain compatible with existing RAID 0.90 setups in all cases. Note that where I have __i386__ in the patch should be replaced by all other architectures that don't have any special alignment rules for 64-bit ints. This may be true for arm, mips, and m68k- I don't know; alpha, ppc, sparc, and sparc64 are definitely broken and need the fix. Would something like this be acceptable for an updated version of RAID 0.90? Thanks, Chris Wing [EMAIL PROTECTED]