Hi Slava,

Sounds like the kernel (using bcache-dev) is not able to handle the 
current format. If so, bcache-tools may help in "reformatting" bcache 
devices, but that's no solution for existing systems.

So is my understanding correct that there's no easy kernel upgrade path 
(to bcache-dev) ?

Rolf

On 12/29/2014 05:05 AM, Slava Pestov wrote:

Hi Stephen,

The bcache-dev branch has on-disk format changes that require a new
bcache-tools. I'm not sure where Kent posts the source for that.

On Sat, Dec 27, 2014 at 6:35 PM, Stephen R. van den Berg [off-list ref] wrote:

quoted

Now I tried this:
Combine 3.18.1 and rebase all the patches from bcache-dev onto that.
But, in trying that, I get a consistent:

register_bcache() error opening /dev/sdb3: Invalid superblock: member info area missing

Anything I overlooked?   The bcache-tools are straight from git too.
--
Stephen.
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