Try to apply the attached patch to /sys/dev/ata/ata-dma.cmy desktop machine using (I think) 4.9-Release. It started when I had to change the motherboard. The new one came w/ an SiS chipset that wasn't supported by FreeBSD. I solved the problem by adding a line to /sys/dev/ata/ata-dma.c. It worked for a few weeks w/o any problems until I switched to RELENG_5_2 for various other reasons.
You might want to post what chipset your mainboard uses.
http://www.asus.com/prog/spec.asp?m=Pundit&langs=01 -> Chipset SIS 651/962 -> Lan Broadcom BCM4401
Neither do I have a mainboard w/ the same chipset as yours nor do I have any PC running RELENG_4 atm. But I had to apply sth similar to make my SiS-746(?)-based mainboard work under RELENG_4. I'm not a developer so I don't know if it's a good and clean solution but it worked for me back then.
In addition, I can't find the bfe0 network driver for the Broadcom BCM4401 in the kernel configuration, but the 4.10 release notes told the bfe should be in.From bfe(4): "The bfe device driver first appeared in FreeBSD 5.1."
--- ata-dma.c.old Sun Jun 20 19:30:10 2004
+++ ata-dma.c Sun Jun 20 19:23:41 2004
@@ -669,6 +669,7 @@
ata_find_dev(parent, 0x06401039, 0) || /* SiS 640 */
ata_find_dev(parent, 0x06451039, 0) || /* SiS 645 */
ata_find_dev(parent, 0x06501039, 0) || /* SiS 650 */
+ ata_find_dev(parent, 0x06511039, 0) || /* SiS 651 */
ata_find_dev(parent, 0x07301039, 0) || /* SiS 730 */
ata_find_dev(parent, 0x07331039, 0) || /* SiS 733 */
ata_find_dev(parent, 0x07351039, 0) || /* SiS 735 */
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