primary and hot standby database don' work now

hello everyone:
my pg version is 9.1.2 running on red hat 5.4 x64 servers.one
day,i found all database indexes can't work,reindex database,it can work,but
some table has primary key,found exists the same two records in table.
primary database error:
semop(id=13762606) failed: Identifier
removed",,,,,,"
...................................
ERROR,XX000,"right sibling's left-link doesn't
match: block 6260 links to 6977 instead of expected 6398 in index
""tt_wait_artifident_ck_20120716_pk""",,,,,,"
...............
WARNING,01000,"relation ""tt_telhis_src"" page 2390 is
uninitialized ---
................
hot standby:
2012-07-19 21:15:10.827
CST,,,19617,,5008085e.4ca1,1,,2012-07-19 21:15:10
CST,,0,LOG,00000,"streaming replication successfully connected to
primary",,,,,,,,,""

2012-07-19 21:18:36.133 CST,,,476,,4fde7dd3.1dc,22,,2012-06-18 09:01:07
CST,1/0,0,WARNING,01000,"specified item offset is too large",,,,,"xlog redo
insert: rel 17673/16386/16780; tid 409/151",,,,""

2012-07-19 21:18:36.133 CST,,,476,,4fde7dd3.1dc,23,,2012-06-18 09:01:07
CST,1/0,0,PANIC,XX000,"btree_insert_redo: failed to add item",,,,,"xlog redo
insert: rel 17673/16386/16780; tid 409/151",,,,""

2012-07-19 21:18:36.204 CST,,,474,,4fde7dd3.1da,4,,2012-06-18 09:01:07
CST,,0,LOG,00000,"startup process (PID 476) was terminated by signal 6:
Aborted",,,,,,,,,""

2012-07-19 21:18:36.204 CST,,,474,,4fde7dd3.1da,5,,2012-06-18 09:01:07
CST,,0,LOG,00000,"terminating any other active server processes",,,,,,,,,""

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