[Bug 1377130] Re: Crash at creation of bcache if caching size > backing size

[Ryan Harper]

I can't reproduce this on vivid w.r.t the hang.

For the "release all the devs" used in bcache setup; it's certainly
awkward.  Fundamentally, there's no path in sysfs that contains both the
cache devs and the backing devs.  And AFAIK, there is no way to know
that the bcacheX devices is being cached by a specific cache set
(/sys/fs/bcache/$UUID).

It's certainly possible to release all of the devices, but it does take
some care:

http://paste.ubuntu.com/12141060/


** Changed in: bcache-tools (Ubuntu)
       Status: New => Invalid

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Title:
  Crash at creation of bcache if caching size > backing size

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