We are hitting this LBUG on one of our production systems recently updated to Lustre 2.4.3 (on 4th of June).
The assertion is here:
I was able to get the content of local_nb from the crash dump.
This LBUG occurred 5 times since 06/06/14. Each time, we have a short read followed by some non-empty pages (rc != 0). You will find attached some output for the first 3 occurences.
FYI, we have Lustre routers between the servers and clients as they are on a different LNET. Clients, routers and servers are running Lustre 2.4.3.