NeilBrown wrote:
Anything I can do about that?
Best thing you can do it report it and hope some maintainer notices and helps
out. Oh wait, you did that :-)
Looks like:
commit 7bfec5f35c68121e7b1849f3f4166dd96c8da5b3
is at fault. It causes md to attempt to add spares into the array more often.
Would I be right in guessing that you have one spare in this array?
If you remove the spare, the messages should stop.
Hi Neil.
As ever many thanks for your responsiveness and helpfulness.
I have two RAID1 sets, each with one spare:
root@zotac:~# cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5]
[raid4] [raid10]
md0 : active raid1 sdb1[1] sde2[2](S) sdd1[0]
521984 blocks [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sdb2[1] sde3[2](S) sdd2[0]
487861824 blocks [2/2] [UU]
bitmap: 1/4 pages [4KB], 65536KB chunk
unused devices: <none>
As you can see, there are no spares to add. Upon my last reboot the
spares were added automatically. Having said that, upon the previous
reboot I had to add them manually. The devices in question were also
missing from /dev/disk/by-uuid. This may be an entirely different
problem though, and not one I'm worried about given the mismatch between
the kernel version and the rest of the distro.
I'm only running this recent a kernel because its support of a
particular piece of hardware I have seems to be much more stable than
with my distro's regular kernel.
In case it's important:
root@zotac:~# cat /etc/mdadm/mdadm.conf | grep -v ^#
DEVICE partitions
CREATE owner=root group=disk mode=0660 auto=yes
HOMEHOST <system>
MAILADDR root
ARRAY /dev/md0 level=raid1 num-devices=2 spares=1
UUID=c2bfb80c:0cbf5cd9:67c62432:ead2ec0c
ARRAY /dev/md1 level=raid1 num-devices=2 spares=1
UUID=442e9934:97191d8e:6d0cf7a9:41621837
I think I know how I'll fix it but it'll have to wait for tomorrow. Then
I'll send you a patch to test.
I'll have to set up a build environment, but I'll certainly give that a go.
Thanks, Jan
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