[LU-9873] parallel-scale-nfsv4 no sub tests failed: test failed to respond and timed out

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 2.11.0
• Environment: Trevis2, full; server: RHEL 7.3, ldiskfs, branch master, v2.10.51, b3620; client: RHEL 7.3, branch master, v2.10.51, b3620
• Severity: 3
• Assignee: WC Triage
• Reporter: James Casper (Inactive)

Description

https://testing.hpdd.intel.com/test_sessions/9b7c7e8e-7b5a-4f4d-af09-400c586a8340

All subtests pass, but during clean up, a umount command is issued on the MDS. No further activity occurs after the umount command. I could not find any stuck processes on any of the nodes.

From suite_log:

CMD: trevis-41vm3 exportfs -u *:/mnt/lustre
trevis-41vm3: exportfs: Could not find '*:/mnt/lustre' to unexport.
CMD: trevis-41vm3 exportfs -v
CMD: trevis-41vm3 grep -c /mnt/lustre' ' /proc/mounts
Stopping client trevis-41vm3 /mnt/lustre (opts:-f)
CMD: trevis-41vm3 lsof -t /mnt/lustre
CMD: trevis-41vm3 umount -f /mnt/lustre 2>&1  

Issue Links

• duplicates: LU-9791 When umount client, kobject_put crashed the kernel