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On Thu, Sep 27, 2018 at 3:32 AM, Shinde, Archana M
<archana.m.shinde at intel.com> wrote:
> We have run the pjdfstest test suite in the past for POSIX compliance and
> seen quite a few failures with 9p.
> An old issue documenting this:
> https://github.com/clearcontainers/runtime/issues/828
>
> I think the pjdfstest will be a good place to start. Graham has documented
> this process here:
> https://github.com/kata-containers/runtime/issues/279#issuecomment-39437129
> 9
>
> Basically one needs to run Kata Containers with the following Dockerfile:
>
> FROM ubuntu
>
> RUN apt-get update && \
>     apt-get -y install autoconf git bc libacl1-dev libacl1 acl gcc make
> perl-modules && \
>     git clone https://github.com/pjd/pjdfstest.git && \
>     cd pjdfstest && \
>     autoreconf -ifs && \
>     ./configure && \
>     make
>
> # and run using
> #    prove -r .
>
>
>
> That test suite does not include the fallocate tests. But simply running
> fallocate(1) in a Kata container today, fails with "Operation not
> supported" with 9p.
>
For one thing, fallocate(2) is Linux specific and not part of the
POSIX semantics. For another thing, FUSE file systems can support
fallocate(2) by implementing the FUSE_FALLOCATE opcode.

Cheers,
Tao

-- 
bergwolf at hyper.sh