Hello, I have the same problem on an ASUS P7P55D-E PRO mainboard with the Marvell 88SE9123 PCIe SATA 6.0 onboard controller and two WDC WD1002FAEX-00Z3A0 Sata 6.0 disks.
=> READ and WRITE freezes with SATA 6.0Gbps and NCQ; Limiting to SATA 3.0Gbps without NCQ gives me a stable system. ( kernel parameter at grub: libata.force=7:noncq,3.0Gbps,8:noncq,3.0Gbps ) There is a kernel thread with the problem and I added my description to it: https://bugzilla.kernel.org/show_bug.cgi?id=43160 Best regards, Bernhard ** Bug watch added: Linux Kernel Bug Tracker #43160 http://bugzilla.kernel.org/show_bug.cgi?id=43160 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/550559 Title: hdd problems, failed command: READ FPDMA QUEUED To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/550559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs