From: NeilBrown <neilb@suse.de>
To: Ole Tange <tange@binf.ku.dk>
Cc: linux-raid@vger.kernel.org
Subject: Re: --grow RAID6 gives: md: md_do_sync() got signal ... exiting + hang
Date: Tue, 7 May 2013 22:14:11 +1000 [thread overview]
Message-ID: <20130507221411.6d0542b3@notabene.brown> (raw)
In-Reply-To: <CANU9nTnGL8pR9Qnp_W-akDHz-ruqVOu5TLgJAE5aTTNC9DeOpQ@mail.gmail.com>
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On Tue, 7 May 2013 13:56:55 +0200 Ole Tange <tange@binf.ku.dk> wrote:
> On Tue, May 7, 2013 at 1:36 PM, Ole Tange <tange@binf.ku.dk> wrote:
>
> > I am expanding my 9 harddisk RAID6 to 10 harddisk RAID6:
> :
> > It is, however, hanging the system.
>
> I can mdadm -E:
>
> /dev/sdi:
> Magic : a92b4efc
> Version : 1.2
> Feature Map : 0x4
> Array UUID : 242d6530:e2562ecb:1dcd2a97:15a1a868
> Name : lemaitre:1 (local to host lemaitre)
> Creation Time : Mon Nov 5 16:27:45 2012
> Raid Level : raid6
> Raid Devices : 10
>
> Avail Dev Size : 7814035120 (3726.02 GiB 4000.79 GB)
> Array Size : 31256138752 (29808.18 GiB 32006.29 GB)
> Used Dev Size : 7814034688 (3726.02 GiB 4000.79 GB)
> Data Offset : 2048 sectors
> Super Offset : 8 sectors
> State : active
> Device UUID : 4b8de95b:90a2aed7:c0ae092b:a056dd95
>
> Reshape pos'n : 8192 (8.00 MiB 8.39 MB)
> Delta Devices : 1 (9->10)
>
> Update Time : Tue May 7 13:12:19 2013
> Checksum : a4f483fd - correct
> Events : 298792
>
> Layout : left-symmetric
> Chunk Size : 128K
>
> Device Role : Active device 9
> Array State : AAAAAAAAAA ('A' == active, '.' == missing)
>
> So it seems stuck on the first 8 MB. Is it safe to reboot?
>
> This hangs:
>
> grep . /sys/block/md1/md/*
>
> $ mdadm --version
> mdadm - v3.2.5 - 18th May 2012
>
> $ uname -r
> 3.2.0-0.bpo.1-amd64
>
It should be safe to reboot though until we know why it is hanging, I cannot
promise it won't hang straight away again.
You didn't answer my question about dmesg output: did you leave anything out?
NeilBrown
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next prev parent reply other threads:[~2013-05-07 12:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 11:36 --grow RAID6 gives: md: md_do_sync() got signal ... exiting + hang Ole Tange
2013-05-07 11:54 ` NeilBrown
2013-05-07 12:08 ` Ole Tange
2013-05-07 12:40 ` NeilBrown
2013-05-07 11:56 ` Ole Tange
2013-05-07 12:14 ` NeilBrown [this message]
2013-05-07 12:16 ` Ole Tange
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