linux-kernel - Re: Monthly md check == hung machine; how do I debug?

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Message-ID: <20080204065928.GO12173@digitalkingdom.org>
Date:	Sun, 3 Feb 2008 22:59:28 -0800
From:	Robin Lee Powell <rlpowell@...italkingdom.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: Monthly md check == hung machine; how do I debug?

On Mon, Feb 04, 2008 at 06:37:02PM +1300, martin f krafft wrote:
> also sprach Robin Lee Powell <rlpowell@...italkingdom.org> [2008.02.04.1021 +1300]:
> >     /usr/share/mdadm/checkarray --cron --all --quiet
> 
> FYI:
> http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=blob;f=debian/checkarray
> 
> It basically does
> 
>   echo check > /sys/block/$array/md/sync_action
> 
> for all arrays.

Thanks for the clarification.

I've tried a few more times, by the way, and it seems that without
"mdadm --monitor" running, the hang doesn't occur.

I'd certainly prefer being notified of state changes, though, so
that's not much of a solution.

-Robin

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