Re: Regression in 4.14: wrong data being read from bcache device

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On Fri, Nov 17, 2017 at 7:08 AM, Christoph Hellwig <hch@xxxxxx> wrote:
> On Thu, Nov 16, 2017 at 07:07:40PM -0800, Michael Lyle wrote:
>> I think the probable cause is this: we construct bios based on
>> previously completed bios in a few places,
>
> That is an extremely bad idea in many ways, so I think we'll need
> to fix this as the priority.

Yah, sorry, this wasn't actually the case.  I was sleep deprived and
hadn't been able to follow it all yet.

Bart points out that there's many remaining cases of assignment of
disk where partno isn't assigned as well-- so I wonder if there are
other potential problems from this.

Mike



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