[LU-7359] Interop 2.5.5<->master: conf-sanity test_90b: MDT start failed

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.7.0, Lustre 2.8.0, Lustre 2.11.0
• Environment: Server: 2.5.5; Client: master, build# 3225, RHEL 6.7
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for Saurabh Tandan <[e-mail]>

This issue relates to the following test suite run: https://testing.hpdd.intel.com/test_sets/3d20050a-7b68-11e5-a83c-5254006e85c2.

The sub-test test_90b failed with the following error:

MDT start failed

This issue has been only observed in case of full group and when server and client have different versions running on them i.e. in case of interop.
test log:

== conf-sanity test 90b: check max_mod_rpcs_in_flight is enforced after update == 22:57:55 (1445727475)
start mds service on shadow-25vm8
CMD: shadow-25vm8 mkdir -p /mnt/mds1
CMD: shadow-25vm8 test -b /dev/lvm-Role_MDS/P1
Starting mds1:   /dev/lvm-Role_MDS/P1 /mnt/mds1
CMD: shadow-25vm8 mkdir -p /mnt/mds1; mount -t lustre   		                   /dev/lvm-Role_MDS/P1 /mnt/mds1
shadow-25vm8: mount.lustre: according to /etc/mtab /dev/mapper/lvm--Role_MDS-P1 is already mounted on /mnt/mds1
Start of /dev/lvm-Role_MDS/P1 on mds1 failed 17
 conf-sanity test_90b: @@@@@@ FAIL: MDT start failed 

It is related to LU-7082

Issue Links

• is related to: LU-7082 conf-sanity test_90b: MDT start failed