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pre_unload_modules
2008 Apr 15
5
o2ib module prevents shutdown
...notification of device removal
Please shutdown LNET to allow this to proceed
This happens on server and client nodes alike. We run RHEL5.1 and
OFED 1.2, kernel 2.6.18-53.1.13.el5_lustre.1.6.4.3smp from CFS/Sun.
I narrowed it down to module ko2iblnd, which I attempt to remove
first (added to PRE_UNLOAD_MODULES in /etc/init.d/openibd), but it
doesn''t work. Strangely, in "lsmod" the use count of the module is
one, but I don''t see where it''s used.
# umount /mnt/lustre
# ifconfig ib0 down
# modprobe -r ko2iblnd
FATAL: Module ko2iblnd is in use.
# lsmod | grep ko2...