From: Phil Turmel <philip@turmel.org>
To: Peter Chubb <peter.chubb@nicta.com.au>
Cc: Anugraha Sinha <asinha.mailinglist@gmail.com>,
linux-raid@vger.kernel.org
Subject: Re: RAID6 reshape stalls immediately
Date: Mon, 9 Nov 2015 17:26:31 -0500 [thread overview]
Message-ID: <56411D97.7020705@turmel.org> (raw)
In-Reply-To: <84lha6u90k.wl-peter.chubb@nicta.com.au>
On 11/09/2015 05:02 PM, Peter Chubb wrote:
> I just did
> mdadm --grow --continue /dev/md0
>
> and the reshape started up again. I didn't realise that mdadm had to
> keep going to do the reshape -- it must have died when I logged off
> last time. So many other operations are handled entirely in the
> kernel...
mdadm spawns a copy of mdmon to perform these tasks. If the process
hierarchy is strictly enforced, and kills off spawned processes when
the highest parent dies, that's a problem for mdadm. I recall some
discussions about this with systemd and/or cgroups. You might want
to make sure all of your utilities have the latest fixes.
Phil
prev parent reply other threads:[~2015-11-09 22:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-04 23:39 RAID6 reshape stalls immediately Peter Chubb
2015-11-06 13:48 ` Anugraha Sinha
2015-11-06 13:54 ` Anugraha Sinha
2015-11-08 4:18 ` Peter Chubb
2015-11-09 13:27 ` Anugraha Sinha
2015-11-09 13:38 ` Phil Turmel
2015-11-09 22:02 ` Peter Chubb
2015-11-09 22:26 ` Phil Turmel [this message]
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