RFR: 8224974: Implement JEP 352

Dmitry Chuyko dmitry.chuyko at bell-sw.com
Wed Aug 7 09:31:27 UTC 2019

On 8/6/19 6:58 PM, Andrew Dinn wrote:
> ......................
> No this behaviour is not currently tested. However, the only client at
> present will never exercise that path so it is not critical to test it
> now. I'd be happy to address testing of this behaviour as part of a
> follow-up JIRA issue if you would be so good as to raise it. I say that
> because I would very much like to get this functionality into a release
> to simplify more extensive testing by Red Hat's middleware teams.
It sounds reasonable, I'll create a tiny RFE after you push the JEP.
>> New MapFail test succeeds if proper IOException or any
>> UnsupportedOperationException was caught but it aren't those situations
>> actually 2 different ones that require distinct checks? If you say that
>> is the situation when results depend on Linux version, it makes sense at
>> least to put a comment in the test because it's really not trivial.
> The documentation of the API under test makes it clear that both errors
> can occur and under what circumstances. However, a note in the test will
> certainly do no harm. I will insert one before checking in the patch.
>> Can PmemTest check IOException with message "map with mode MAP_SYNC
>> unsupported" as a part of expected behavior, not just showing a test
>> failure?
> I don't see any need for this now that MapFail has been provided. Wit
> that alterative in place for checking map failures on non-DAX file
> syetems PmemTest is now primarily intended to test behaviour with a DAX
> file system which it expects to have been set up in advance as described
> in the main comment. So, the scenario you describe is not really an
> intended usage and I woudl argue that a failure is the right way to
> signal that.

OK, finally got it, thank you.


> regards,
> Andrew Dinn
> -----------
> Senior Principal Software Engineer
> Red Hat UK Ltd
> Registered in England and Wales under Company Registration No. 03798903
> Directors: Michael Cunningham, Michael ("Mike") O'Neill, Eric Shander

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