Hello,
On one of our big RAM(128GB) clients we see following message:

LustreError: 26295:0:(mdc_locks.c:848:mdc_enqueue()) ldlm_cli_enqueue: -2

can some one help to understand the failure?
 
SYSTEm: SL 6.4
lustre client/server
 cat /proc/fs/lustre/version
lustre: 2.4.2
kernel: patchless_client
build:  2.4.2-RC2--PRISTINE-2.6.32-358.23.2.el6.x86_64

Thank you beforehand.
Arman.