[LU-5882] Conflict in exported symbols, clients cannot load modules

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Blocker
• Affects Version/s: Lustre 2.7.0
• Environment: Hyperion/LLNL
• Severity: 3
• Assignee: WC Triage
• Reporter: Cliff White (Inactive)

Description

Modprobe fails on all Lustre clients
WARNING: Error inserting obdclass (/lib/modules/2.6.32-431.29.2.el6.x86_64/extra/kernel/fs/lustre/obdclass.ko): Invalid module format

Syslog reports duplicate symbol
obdclass: exports duplicate symbol obd_memory (owned by lvfs)

# objdump --sym /lib/modules/2.6.32-431.29.2.el6.x86_64/weak-updates/kernel/fs/lustre/lvfs.ko |grep obd_memory
0000000000000050 l     O __ksymtab      0000000000000010 __ksymtab_obd_memory
0000000000000043 l     O __ksymtab_strings      000000000000000b __kstrtab_obd_memory
0000000000000028 l     O __kcrctab      0000000000000008 __kcrctab_obd_memory
0000000000000000 g     O .bss   0000000000000008 obd_memory
000000007562dcf8 g       *ABS*  0000000000000000 __crc_obd_memory