[LU-6486] ppc64 client: lov: Unknown symbol lustre_swab_lov_mds_md

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.8.0
• Labels: patch ppc
• Environment: shadow
• Severity: 3
• Assignee: Jian Yu
• Reporter: Frank Heckes (Inactive)

Description

ppc64 client build can't mount Lustre FS. Error happened during lustre-initialization - phase testing build #66 of Jenkins job 'lustre-ppc-6.6':

Apr 22 14:09:29 shadow-31 kernel: lov: Unknown symbol lustre_swab_lov_mds_md

Test session associated with build is
https://testing.hpdd.intel.com/test_sessions/ae0a97f6-e902-11e4-acb0-5254006e85c2
(see autotest log file, dmesg, messages of node shadow-31)

Error can be reproduced manually also. Created MGS/MDT on shadow-35vm3, OSTs on shadow-35vm8 and tried to mount Lustre FS on ppc64 client (shadow-31):

mount -t lustre 10.1.5.185@tcp0:/temp /mnt/lustre

Apr 23 11:34:51 shadow-31 modprobe: FATAL: Error inserting lustre (/lib/modules/2.6.32-504.12.2.el6.ppc64/extra/kernel/fs/lustre/lustre.ko): Unknown symbol in module, or unknown parameter (see dmesg)
Apr 23 11:34:51 shadow-31 kernel: lov: Unknown symbol lustre_swab_lov_mds_md
Apr 23 11:34:51 shadow-31 kernel: LustreError: 165-2: Nothing registered for client mount! Is the 'lustre' module loaded?
Apr 23 11:34:51 shadow-31 kernel: LustreError: 26855:0:(obd_mount.c:1342:lustre_fill_super()) Unable to mount  (-19)

Lustre FS is operational as it can be mounted on x86_64 client node

[root@shadow-35vm5 ~]# mount -t lustre 10.1.5.185@tcp0:/temp /mnt/lustre
[root@shadow-35vm5 ~]# mount |grep lustre 
10.1.5.185@tcp0:/temp on /mnt/lustre type lustre (rw)