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using the following link:
https://bugzilla.lustre.org/show_bug.cgi?id=11473
This hit on a Zeus login node (zeus286):
Lustre: OBD class driver Build Version:
1.4.7.2_pre_6.1llnl_ofed1.1rc7_3llnl-19691231160000-PRISTINE-.usr.src.linux-2.6.9-56chaos.-2.6.9-56chaos,
info@clusterfs.com
ko2iblnd: no version for "ib_create_cq" found: kernel tainted.
Lustre: Added LNI 192.168.121.38@o2ib [8/64]
Lustre: Lustre Lite Client File System; info@clusterfs.com
LustreError: 26978:0:(namei.c:355:ll_d_add()) dentry force.o 00000100c4014718
hash next 0000000000000000
LustreError: 26978:0:(namei.c:356:ll_d_add()) LBUG
Lustre: 26978:0:(linux-debug.c:156:libcfs_debug_dumpstack()) showing stack for
process 26978
as R running task 0 26978 26974 (NOTLB)
0000000000000001 000001030385ebe0 000001030385ebe0 0000000000000001
0000000100000206 0000000000000006 0000000000000016 0000000000000001
ffffffff803ba8c0 0000000000000000
Call Trace:<ffffffff8012f97d>{__wake_up_common+67}
<ffffffff8012dd53>{activate_task+124}
<ffffffff8012e271>{try_to_wake_up+863}
<ffffffff8012dcc5>{recalc_task_prio+337}
<ffffffff8012dd53>{activate_task+124}
<ffffffff8012e271>{try_to_wake_up+863}
<ffffffff8012f97d>{__wake_up_common+67}
<ffffffff8012f9d3>{__wake_up+54}
<ffffffff80134264>{vprintk+498}
<ffffffff80134264>{vprintk+498}
<ffffffff8013430e>{printk+141} <ffffffff8013430e>{printk+141}
<ffffffff80145177>{__kernel_text_address+26}
<ffffffff8011071c>{show_trace+375}
<ffffffff80110858>{show_stack+241}
<ffffffffa02409dd>{:libcfs:lbug_with_loc+51}
<ffffffffa0488c52>{:llite:ll_d_add+340}
<ffffffffa0489c58>{:llite:ll_create_nd+979}
<ffffffff8018440f>{vfs_create+153}
<ffffffff801847d7>{open_namei+457}
<ffffffff80175646>{filp_open+125}
<ffffffff802ecacb>{thread_return+0}
<ffffffff802ecb23>{thread_return+88}
<ffffffffa045d7ef>{:llite:ll_intent_release+0}
<ffffffff80175857>{sys_open+58}
<ffffffff8010f262>{system_call+126}
LustreError: dumping log to /var/tmp/lustre-log.1166755492.26978
Is it possible that this bug is related to the issues being
discussed in bug#10796 ?
Also note that the Lustre version running on this client node
has a local hack to try to avoid bug#11332.