[LU-3472] MDS can't umount with blocked flock

• Type: Bug
• Resolution: Low Priority
• Priority: Minor
• Labels: patch
• Severity: 3
• Assignee: Bruno Faccini (Inactive)
• Reporter: Andriy Skulysh

Description

Here is a testcase
flock -e /mnt/lustre/ff -c 'sleep 10' &
sleep 1
flock -e /mnt/lustre/ff -c 'sleep 5' &
sleep 1
echo "umount -f /mnt/mds1"
umount -f /mnt/mds1 || true
killall flock
ps ax
echo "umount -f /mnt/lustre"
umount -f /mnt/lustre || true
cleanupall -f || error "cleanup failed"