[system test] Erlang crash during data access phase with Mike's toy build

cluster ip is 10.5.2.30

1.3 node cluster, create 2 buckets, default 2.5G quota and saslbucket 1.3G
2.load items into buckets to make it dgm. Around 80% resident ratio
3.After initial loading, do a lot of "gets", around 80%. 20% cache miss maximum. Total ops per sec is 3k ops/sec
During data access phase, nodes went down in "Pend" state. bucket is not accessible from UI.

Find erlang_crash.dump on 10.5.2.31 under /opt/couchbase/var/lib/couchbase.

Link to the core_dump file: https://s3.amazonaws.com/bugdb/jira/MB-8263/erl_crash.dump.05-10-2013-19:05:36.7640