During a fresh install today (14.04.1 on Samsung 850 Pro) I also hit this bug. I noticed the same issue on a 13.04 install on a Samsung 840 Pro (after fw upgrade) that I am running for quite some time now. Allthough running fstrim manually is still working, I found this litte test which seems to work and confirm TRIM is active and working. I thought I'd register and share this (hopefully) useful info with you. Run test as per description below:
http://techgage.com/article/enabling_and_testing_ssd_trim_support_under_linux/2/ Hope this shed some light on the matter.... -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
