Here we have two instances where fatal error is ignored - which leads to node stall and blocking of a whole cluster.
110313 19:34:53 [ERROR] WSREP: invalid state APPLYING (FATAL)
at galera/src/replicator_smm.cpp:abort_trx():679
110313 19:34:53 [Warning] WSREP: cancel commit bad exit: 6 9470094
110313 19:44:32 [ERROR] Slave SQL: Could not execute Update_rows event on table test.comm04; Deadlock found when trying to get lock; try restarting transaction, Error_code: 1213; handler error HA_ERR_LOCK_DEADLOCK; the event's master log FIRST, end_log_pos 8700, Error_code: 1213
110313 19:44:32 [Warning] WSREP: RBR event 30 apply warning: 149, 6393734
110313 19:44:32 [Warning] WSREP trx_replay failed for: 7