From a17433653c2af9ed0c6c905e61c304a4efda2a29 Mon Sep 17 00:00:00 2001 From: Warner Losh Date: Fri, 15 Apr 2016 04:45:37 +0000 Subject: Add update. --- UPDATING | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) (limited to 'UPDATING') diff --git a/UPDATING b/UPDATING index ac92b784f6e32..dcff31551e0d9 100644 --- a/UPDATING +++ b/UPDATING @@ -32,11 +32,31 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: "ln -s 'abort:false,junk:false' /etc/malloc.conf".) 20160414: - The CAM I/O scheduler has been committed to the kernel. There should - be no user visible impact. This does enable NCQ Trim on ada - SSDs. While the list of known rogues that claim support for - this but actually corrupt data is believed to be complete, be - on the lookout for data corruption. + The CAM I/O scheduler has been committed to the kernel. There should be + no user visible impact. This does enable NCQ Trim on ada SSDs. While the + list of known rogues that claim support for this but actually corrupt + data is believed to be complete, be on the lookout for data + corruption. The known rogue list is believed to be complete: + + o Crucial MX100, M550 drives with MU01 firmware. + o Micron M510 and M550 drives with MU01 firmware. + o Micron M500 prior to MU07 firmware + o Samsung 830, 840, and 850 all firmwares + o FCCT M500 all firmwares + + Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware + with working NCQ TRIM. For Micron branded drives, see your sales rep for + updated firmware. Black listed drives will work correctly because these + drives work correctly so long as no NCQ TRIMs are sent to them. Given + this list is the same as found in Linux, it's believed there are no + other rogues in the market place. All other models from the above + vendors work. + + To be safe, if you are at all concerned, you can quirk each of your + drives to prevent NCQ from being sent by setting: + kern.cam.ada.X.quirks="0x2" + in loader.conf. If the drive requires the 4k sector quirk, set the + quirks entry to 0x3. 20160330: The FAST_DEPEND build option has been removed and its functionality is -- cgit v1.2.3