Have you checked if DMA is enabled on the drives in question? You can use "hdparm" to check.
-- File move causes 100% CPU usage https://bugs.launchpad.net/bugs/236141 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs