On Wed, Mar 02, 2016 at 10:47:45PM +0500, Roman Mamedov wrote:

On Wed, 2 Mar 2016 18:44:54 +0100
Piergiorgio Sartor [off-list ref] wrote:

quoted

Just tested:

dd if=/sys/block/md0/md/sync_action bs=1 count=1

On kernel 3.x I get "i", on kernel 4.x I get "idle"... :-)

I am getting 'i' on 4.4.1.

# dd if=/sys/block/md0/md/sync_action bs=1 count=1
i1+0 records in
1+0 records out
1 byte (1 B) copied, 0.000218199 s, 4.6 kB/s

Interesting.
I tested kernel 4.1.x (Ubuntu) and now 4.3.6 (Fedora 22).
They both deliver "idle".
On kernel 4.4.2 (Fedora 23) I get back the "i" alone...

Really funny... :-)

bye,

-- 
With respect,
Roman

-- 

piergiorgio