[FS#1242] SATA broken on kernel 4.9 on mt7621

[LEDE Bugs]

The following task has a new comment added:

FS#1242 - SATA broken on kernel 4.9 on mt7621
User who did this - HeadLessHUN (HeadLessHUN)

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I commented out these lines

CONFIG_GENERIC_IRQ_IPI=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

and inserted this line to the target/linux/ramips/mt7621/config-4.9.

CONFIG_SCHED_HRTICK=y

Build it and the problem didn't get solved....There are lots of corruption in few hour uptimm.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1242#comment4138