moving or copying files TO the 3ware sata raid controller mounted to directory. The error does not appear when you move a file from the raid disk to the IDE system disk. system drive = IDE: /dev/hda SATA = /dev/sda : Mount point = /satad kernel = 2.6.5-7.111-smp 3ware 9500S SATA RAID controller. 2.6 kernel sources driver [Message from /var/log/messages] Oct 21 04:43:06 lnxdb kernel: mv[4211]: segfault at 0000000000000400 rip 0000002a959f7e10 rsp 0000007fbfffe4b8 error 4