I'm on Ubuntu 12.04 with kernel 3.13.0-49-generic and experiencing the same problem with a freshly bought Samsung SSD 850 Pro and can confirm what already has been stated at https://bugzilla.kernel.org/show_bug.cgi?id=72341.
- Enabled NCQ and TRIM (=queued TRIM) causes errors and a fallback after some timeout to SATA with 3Gb/s - Setting either libata.force=noncq or disabling TRIM via mount options resolves the issue My dmesg looks slighty different, though. I will post it later. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1338706 Title: Samsung SSD 840 failed to get NCQ Send/Recv Log Emask 0x1 failed to set xfermode (err_mask=0x40) on upstream kernels >= 3.12 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1338706/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
