Re: Kernel oops adding bitmap

On 3/19/2012 4:32 PM, NeilBrown wrote:

On Mon, 19 Mar 2012 11:44:45 -0500 Larkin Lowrey

[off-list ref]

wrote:

quoted

The following command oopsed.

mdadm -G --bitmap=internal /dev/md0

The array is a two disk raid1 and hosts the root filesystem.

Is it not possible/allowed to add a bitmap to an active/mounted array?

It is. But it is busted.

Either use an older mdadm (3.2.2 or earlier), or apply this patch

http://neil.brown.name/git?p=md;a=commitdiff;h=4474ca42e2577563a919fd3ed782e2ec55bf11a2

which has been sent to Linus already and should appear in -stable

kernels in

a couple of weeks.

NeilBrown

Thank you for the explanation.

--Larkin