I was encountering some similar problems in the past and I put an entry into /etc/hotplug/blaclist like the following:

# Mellanox InfiniBand
ib_mthca

This has worked for me.

Pradeep
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06/23/2006 10:14 AM

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Subject
[openib-general] Stopping Infiniband kernel modules from loading at system boot






Short of uninstalling the OFED-1.0 release,  how can I stop the Infiniband related kernel modules from loading at system boot?  


I am trying to debug a problem with programs hanging in the kernel,  so I thought that I would try manually loading the modules one at a time to see if I could isolate the problem.  This is on a RHEL4 U3 system with the 2.6.16 kernel and the OFED-1.0 release installed.


I used "/sbin/chkconfig" to turn off the  "openibd" and "opensmd" services in the
/etc/rc.d/ runlevel files.  I even removed "ifcfg-ib0" and "ifcfg-ib1" from the /etc/sysconfig/networking-scripts directory.  I don't see any other scripts that would cause these modules to be loaded.   But every time I reboot, I get the following modules loaded, according to /sbin/lsmod:

ib_mthca              117424  0

ib_mad                 35896  1 ib_mthca

ib_core                45952  2 ib_mthca,ib_mad


What have I missed?


       -Don Albert-
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