Re: Heads up: rdma-core dropped support for 32-bit arm

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On Fri, Dec 06, 2019 at 11:04:53PM -0700, Orion Poplawski wrote:
> FYI:
> 
> rdma-core 26.1-1.fc32 dropped support for %arm:
> 
> # 32-bit arm is missing required arch-specific memory barriers,
> ExcludeArch: %{arm}
> 
> This broke dependecies for the arm package of openmpi
> (https://bugzilla.redhat.com/show_bug.cgi?id=1780584)
> 
> This may have affected other users of rdma-core, depending of if they use
> rdma on arm.  Using my x86_64 machine:
>

Confirmed only openmpi impacted by this issue. Please see inline comments
for details.

Opened https://bugzilla.redhat.com/show_bug.cgi?id=1781765 for openmpi.

> $ dnf repoquery --whatrequires libibverbs.so.1'()(64bit)' --source
> Last metadata expiration check: 0:14:21 ago on Fri 06 Dec 2019 10:35:11 PM
> MST.
> ceph-14.2.4-3.fc32.src.rpm
ExcludeArch:	i686 armv7hl

> dapl-2.1.9-10.fc31.src.rpm
dapl should be retired.

> fio-3.16-2.fc32.src.rpm
%ifnarch %{arm}
BuildRequires:  numactl-devel
BuildRequires:  librdmacm-devel
%endif

> ga-5.6.5-6.fc31.src.rpm
ExclusiveArch: %{ix86} x86_64

> glusterfs-7.0-1.fc32.src.rpm
# No RDMA Support on armv7hl
%ifarch armv7hl
%global _without_rdma --disable-ibverbs
%endif

> libfabric-1.9.0-1.fc32.src.rpm
# RDMA not available on 32-bit ARM: #1484155
%ifnarch %{arm}
BuildRequires:  libibverbs-devel
BuildRequires:  librdmacm-devel
%endif

> libiscsi-1.18.0-9.fc32.src.rpm
%ifnarch %{arm}
BuildRequires: rdma-core-devel
%endif

> libocrdma-1.0.8-6.fc27.src.rpm
libocrdma should be retired.

> nwchem-6.8.2-1.fc32.src.rpm
ExclusiveArch: x86_64 %{ix86}

> openmpi-3.1.5-1.module_f32+7117+998651d7.src.rpm
https://bugzilla.redhat.com/show_bug.cgi?id=1781765

> orangefs-2.9.7-6.fc31.src.rpm
%ifnarch armv7hl
BuildRequires: libibverbs-devel
%endif

> perftest-4.2-5.fc31.src.rpm
ExcludeArch:    s390 s390x %{arm}

> qemu-4.2.0-0.3.rc2.fc32.src.rpm
qemu maintainer had fixed this issue.

> qperf-0.4.9-16.fc31.src.rpm
ExcludeArch:    %{arm}

> rdma-core-26.1-1.fc32.src.rpm
It does not impact itself.

> scsi-target-utils-1.0.70-9.fc31.src.rpm
%ifnarch s390 s390x %{arm}
%global with_rdma 1
%endif

> ucx-1.6.1-1.fc32.src.rpm
# UCX currently supports only the following architectures
ExclusiveArch: aarch64 ppc64le x86_64

> 
> This has also broken hwloc-devel on arm:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1780813
> 
> Is this a definite hard requirement, or can we have at least a minimal
> rdma-core for arm to avoid having to propagate a bunch of arm conditionals
> down the stack?
> 
> -- 
> Orion Poplawski
> Manager of NWRA Technical Systems          720-772-5637
> NWRA, Boulder/CoRA Office             FAX: 303-415-9702
> 3380 Mitchell Lane                       orion@xxxxxxxx
> Boulder, CO 80301                 https://www.nwra.com/
> 

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