I, too, get idle on 4.2.0-30. ---- rodman@nas:/media/nas$ dd if=/sys/block/md0/md/sync_action bs=1 count=1 idle 1+0 records in 0+1 records out 5 bytes (5 B) copied, 7.9147e-05 s, 63.2 kB/s ------- Regards, Rodman Frowert -------- Original Message -------- Subject: Re: Checkarray doesn't seem to do anything From: Roman Mamedov <rm@xxxxxxxxxxx> Date: Wed, March 02, 2016 11:47 am To: Piergiorgio Sartor <piergiorgio.sartor@xxxxxxxx> Cc: rodman@xxxxxxxxxxxxx, linux-raid@xxxxxxxxxxxxxxx On Wed, 2 Mar 2016 18:44:54 +0100 Piergiorgio Sartor <piergiorgio.sartor@xxxxxxxx> wrote: > 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 -- With respect, Roman -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html