Hi guys,
First post here so hi!
Wondering if anyone has any idea what's going on here.
Cheers
Gaz

PostgreSQL 9.2 on Windows Server 2008 R2 64-bit

Streaming Replication initialised & working on a 500GB database.
Following day on slave, following errors in the log:

2012-11-27 09:57:53 GMT WARNING: page 911726 of relation pg_tblspc/16570/PG_9.2_201204301/16571/16595 is uninitialized
2012-11-27 09:57:53 GMT CONTEXT: xlog redo vacuum: rel 16570/16571/16595; blk 911727, lastBlockVacuumed 911725
2012-11-27 09:57:53 GMT PANIC: WAL contains references to invalid pages
2012-11-27 09:57:53 GMT CONTEXT: xlog redo vacuum: rel 16570/16571/16595; blk 911727, lastBlockVacuumed 911725
2012-11-27 09:57:54 GMT LOG: startup process (PID 1392) exited with exit code 3
2012-11-27 09:57:54 GMT LOG: terminating any other active server processes

Restarting the PostgreSQL service on the slave, the log shows the same errors:

2012-11-27 10:26:39 GMT LOG: database system was interrupted while in recovery at log time 2012-11-27 09:37:29 GMT
2012-11-27 10:26:39 GMT HINT: If this has occurred more than once some data might be corrupted and you might need to choose an earlier recovery target.
2012-11-27 10:26:39 GMT LOG: entering standby mode
2012-11-27 10:26:39 GMT LOG: redo starts at 3A8/11A5A9A8
2012-11-27 10:26:40 GMT FATAL: the database system is starting up
2012-11-27 10:26:41 GMT FATAL: the database system is starting up
2012-11-27 10:26:42 GMT FATAL: the database system is starting up
2012-11-27 10:26:43 GMT FATAL: the database system is starting up
2012-11-27 10:26:44 GMT FATAL: the database system is starting up
2012-11-27 10:26:45 GMT FATAL: the database system is starting up
2012-11-27 10:26:46 GMT FATAL: the database system is starting up
2012-11-27 10:26:47 GMT FATAL: the database system is starting up
2012-11-27 10:26:48 GMT FATAL: the database system is starting up
2012-11-27 10:26:49 GMT FATAL: the database system is starting up
2012-11-27 10:26:50 GMT LOG: consistent recovery state reached at 3A8/387BFF48
2012-11-27 10:26:50 GMT LOG: database system is ready to accept read only connections
2012-11-27 10:26:50 GMT WARNING: page 911726 of relation pg_tblspc/16570/PG_9.2_201204301/16571/16595 is uninitialized
2012-11-27 10:26:50 GMT CONTEXT: xlog redo vacuum: rel 16570/16571/16595; blk 911727, lastBlockVacuumed 911725
2012-11-27 10:26:50 GMT PANIC: WAL contains references to invalid pages
2012-11-27 10:26:50 GMT CONTEXT: xlog redo vacuum: rel 16570/16571/16595; blk 911727, lastBlockVacuumed 911725
2012-11-27 10:26:50 GMT LOG: startup process (PID 2640) exited with exit code 3
2012-11-27 10:26:50 GMT LOG: terminating any other active server processes

I noticed a autovacuum process started on the master at 09:04am and was still running when the slave tripped over – could this be a factor?
Or could this be a consequence of the WAL corruption issue fixed in 9.2.1/9.1.6?

Full page writes is switched on.

Anyone have any ideas on this, or pointers where to look? Really tearing my hair out on this
Thanks

If anyone else encounters this - it was an error with the copy mechanism moving data from the master to the slave. Used a better utility (robocopy) and all's been well since.
Cheers