From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.com>
Subject: Re: Fwd: (user) Help needed: mdadm seems to constantly touch my disks
Date: Mon, 19 Dec 2016 15:01:49 +1100
Message-ID: <87twa0tvma.fsf@notabene.neil.brown.name>
References: <CAJ=9zicFM+wOUhpdX1XEVm+y2gYoW3r2aTRj6gAcEkypxJULmA@mail.gmail.com> <871sxbz4yz.fsf@notabene.neil.brown.name> <CAJ=9zieRuTNiEGuB_RouqbdLGoxNkn09yiogR6rND84LtMdbxA@mail.gmail.com> <CAJ=9zifGPd+3YnP1aLwLPXjtpygRc9DsDP37CNz-VHBHn1vDOg@mail.gmail.com> <87inqgvpyj.fsf@notabene.neil.brown.name> <CAJ=9zidNV4sPj7KC7_mJEo8+=-YTKyWD5RiLsGG9p33CV12Qdg@mail.gmail.com>
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To: Jure =?utf-8?Q?Erzno=C5=BEnik?= <jure.erznoznik@gmail.com>
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[please remember to keep linux-raid cc:ed]

On Mon, Dec 19 2016, Jure Erzno=C5=BEnik wrote:

> I wrote this in OP: iosnoop shows COMM=3D[idle, md0_raid5, kworker] as
> processes working on the disk. Blocks reported are 8, 16 (data size a
> few KB) and 18446744073709500000 (data size 0). That last one must be
> some virtual thingie as the disks are nowhere near that large.
>
> Does this answer the question or did you mean something else?

Maybe if you just make the blktrace logs available somewhere and I will
look at them myself.

NeilBrown

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