[LU-14025] Need lustre client for SLES15 SP2 and Mellanox OFED 5.1

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.12.5
• Affects Version/s: Lustre 2.12.5
• Labels: build
• Environment: Lustre client will run in SLES15 SP2 system with Mellanox OFED 5.1
• Severity: 3
• Assignee: Jian Yu
• Reporter: Jay Lan (Inactive)

Description

We are getting new systems that requires SLES15 SP2 and Mellanox OFED.

Uploaded is a log-rpms file that showed compilation failure of lustre client 2.12.5 with SLES15 SP2 kernel and Mellanox OFED 5.1. The only mofed versions that support SLES15 SP2 are version 5.x.

The failure looked not trivia. Probably due to some rules changes in newer version of gcc, make, rpmbuilds in SLES15 SP2.
...
/usr/src/linux-5.3.18-24.15/scripts/Makefile.build:57: '/tmp/rpmbuild-lustre-jlan-c7QMO3MB/BUILD/lustre-2.12.5/libcfs/libcfs/libcfs.ko' will not be built even though obj-m is specified.
/usr/src/linux-5.3.18-24.15/scripts/Makefile.build:58: You cannot use subdir-y/m to visit a module Makefile. Use obj-y/m instead.
/usr/src/linux-5.3.18-24.15/scripts/Makefile.build:57: '/tmp/rpmbuild-lustre-jlan-c7QMO3MB/BUILD/lustre-2.12.5/lnet/selftest/lnet_selftest.ko' will not be built even though obj-m is specified.
/usr/src/linux-5.3.18-24.15/scripts/Makefile.build:58: You cannot use subdir-y/m to visit a module Makefile. Use obj-y/m instead.
...

I did not see this type of failures in compiling mofed, and other external kernel modules that I built. This only happened to Lustre build.