On (03/25/11 05:32), Martyn Klassen wrote:
>
> I upgraded from OpenSolaris 2009.06 (snv_111b) to the snv_134b and am
> observing some odd behaviour with IP over Infiniband. I can communicate
> with most of my host without problems, but a couple of hosts report "no
> route to host errors." These hosts are still accessible from other
> hosts on the network, just not the upgraded system. The inaccessible
> hosts are also unable to access the upgraded system. If I boot back
> into snv_111b the problem goes away.
>
> I have used the Open Fabrics tools available on one of my Linux
> systems to trace the underlying IB network and all the hosts seem to be
> able to communicate without issue at the IB level, just not the IPoIB
> level. The inaccessible hosts are not unique, ie hosts with identical
> hardware and software are accessible.
>
> Any suggestions on diagnosing or solving this issue would be appreciated?
What does the routing table say for these unreachable hosts (i.e., what's
the output of 'netstat -rn')? What does "route -n get <host>" return
for these hosts?
Can you run the following dtrace script:
#!/usr/sbin/dtrace -Cs -
ip_drop_output:entry
{
printf("%s\n", (string) arg0);
stack();
}
ire_reject:entry
{
stack();
}
--Sowmini
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