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:
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....