On Wed, Jan 15, 2014 at 04:31:41PM +0100, Ethan Wilson wrote:
[...]

What do you think about this problem?

Hi Ethan,

I noticed something similar, but I
could not really pin point it.

I've a test RAID-6 made of USB drives.
These drives, being USB, are prone to
leave the array.
So, sometimes, one drive is kicked out.
Having the bitmap active, is no problem
to re-add it back.

Checking the filesystem later, it happens,
sometimes, to find errors.

Now that you point out, it seems a similar
situation. As you wrote is seems the bitmap
is clear before the actual data is written.

Unfortunately, it is difficult (for me) to
reproduce or debug.

bye,

pg

Thanks
Ethan
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piergiorgio