[LU-3268] lod_verify_striping(): bad userland LOV MAGIC: 0xd00bd10b

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.1, Lustre 2.5.0
• Affects Version/s: Lustre 2.4.0
• Labels: endianness lod sparc
• Severity: 3
• Assignee: John Hammond
• Reporter: Li Wei (Inactive)

Description

This occurred on a SPARC MDS when an x86 client tried to "lfs setstripe" a new directory:

00000004:00000080:30.0:1367562225.034331:2800:27098:0:(lod_lov.c:850:lod_verify_striping()) bad userland LOV MAGIC: 0xd00bd10b

The number is exactly LOV_USER_MAGIC_V1 swabbed. The client code always send the lov_mds_md_v1 structures in little-endian, and the MDS code do no swabbing for the structures. This is problematic for x86 clients talking with SPARC servers.

Issue Links

• is related to: LU-2973 lov_mds_md not swabbed in ll_getxattr