[LU-5140] Mellanox backport header conflicts with newer kernels

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.6.0
• Affects Version/s: Lustre 2.6.0
• Labels: build
• Environment: Any linux environment that supports process namespace and the external Mellanox OFED stack. In my case it was SLES11 SP3 with a external OFED stack.
• Severity: 3
• Assignee: Bob Glossman (Inactive)
• Reporter: James A Simmons

Description

The Mellanox OFED stack has a compatibility layer to allow it be build across many kernel versions and many distributions. The linux process namespace is one of the things Mellanox creates wrappers to handle various levels of support of this feature.

For lustre the libcfs layer also does the same exact thing to handle different levels of support of process namespace. In order to do that libcfs has to figure out which abstract to wrap around, Mellanox or the native system. Currently libcfs doesn't not handle this case properly.

Issue Links

• duplicates: LU-5194 fail to build lustre with OFED-3.12