[Lustre-discuss] LustreError: lookup/take lock error -13

[Gregory Matthews]

Does anyone recognise the following logs:

Jul 15 18:24:40 cs04r-sc-mds01-01 kernel: LustreError: 
17241:0:(mds_open.c:1053:mds_open()) parent 121938276/854916762 
lookup/take lock error -13
Jul 15 18:24:40 cs04r-sc-mds01-01 kernel: LustreError: 
17241:0:(mds_open.c:1053:mds_open()) Skipped 5 previous similar messages
Jul 15 18:24:42 cs04r-sc-mds01-01 kernel: LustreError: 
8283:0:(mds_open.c:1053:mds_open()) parent 121938276/854916762 
lookup/take lock error -13
Jul 15 18:24:42 cs04r-sc-mds01-01 kernel: LustreError: 
8283:0:(mds_open.c:1053:mds_open()) Skipped 5 previous similar messages
Jul 15 18:25:17 cs04r-sc-mds01-01 kernel: LustreError: 
8284:0:(mds_open.c:1053:mds_open()) parent 121938276/854916762 
lookup/take lock error -13
Jul 15 18:25:17 cs04r-sc-mds01-01 kernel: LustreError: 
8284:0:(mds_open.c:1053:mds_open()) Skipped 11 previous similar messages

I cant find anything similar on google or bugzilla (I may be looking for 
the wrong things of course).

It coincides roughly with some I/O errors observed on NFS clients of a 
Lustre exporter. Nothing shows up in the logs of the lustre client/nfs 
exporter.

Lustre servers are running 2.6.18-128.7.1.el5.ddn1.l1.6.7.2.ddn3smp 
x86_64 with a very slightly modified lustre 1.6.7.2.ddn3.5

What information can I extract from those logs? (I got the -13 EACCES 
but permission denied for what?)

many thanks

GREG
-- 
Greg Matthews            01235 778658
Senior Computer Systems Administrator
Diamond Light Source, Oxfordshire, UK