We have 4 nodes of Oracle cluster 10 g2 on RHEL 4.0 U2.
It was working till 2 days ago and suddenly it started crwaling. The 
changes made were , a infiniband network card added to all 4 nodes along 
with a new OCFS slice.
Infini card's driver was compiled and all the RPMs

ibadm-1.8.0-2.6.9_22.ELsmp.x86_64.rpm
ib-ipoib-1.8.0-2.6.9_22.ELsmp.x86_64.rpm
ib-verbs-1.8.0-2.6.9_22.ELsmp.x86_64.rpm
mpich_mlx_gcc-0.9.5_1-2.6.9_22.ELsmp.x86_64.rpm
mst-x86_64-4.2.0-2.6.9_22.ELsmp.x86_64.rpm
opensm-1.8.0-2.6.9_22.ELsmp.x86_64.rpm

were installed and interface ib0 was working and were able to ping each 
nodes.

Problem is when Oracle Cluster Ready Services starts after a reboot the 
machine hangs for a while and then it reboots the machine again.
We tried to disable OCRS and booted the node but still it could't start 
OCRS.
Any comments, experience with infiniband, OCRS would be of great help
TIA
Yash


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