Streaming replication bug in 9.3.2, "WAL contains references to invalid pages"

Greetings,

We've had two clients experience a crash on the secondary of a streaming replication pair, running PostgreSQL 9.3.2.
Inboth cases, the messages were close to this example: 

2013-12-30 18:08:00.464 PST,,,23869,,52ab4839.5d3d,16,,2013-12-13 09:47:37 PST,1/0,0,WARNING,01000,"page 45785 of
relationbase/236971/365951 is uninitialized",,,,,"xlog redo vacuum: rel 1663/236971/365951; blk 45794,
lastBlockVacuumed45784",,,,"" 
2013-12-30 18:08:00.465 PST,,,23869,,52ab4839.5d3d,17,,2013-12-13 09:47:37 PST,1/0,0,PANIC,XX000,"WAL contains
referencesto invalid pages",,,,,"xlog redo vacuum: rel 1663/236971/365951; blk 45794, lastBlockVacuumed 45784",,,,"" 
2013-12-30 18:08:00.950 PST,,,23866,,52ab4838.5d3a,8,,2013-12-13 09:47:36 PST,,0,LOG,00000,"startup process (PID 23869)
wasterminated by signal 6: Aborted",,,,,,,,,"" 

In both cases, the indicated relation was a primary key index.  In one case, rebuilding the primary key index caused
theproblem to go away permanently (to date).  In the second case, the problem returned even after a full dump / restore
ofthe master database (that is, after a dump / restore of the master, and reimaging the secondary, the problem returned
atthe same primary key index, although of course with a different OID value). 

It looks like this has been experienced on 9.2.6, as well:
http://www.postgresql.org/message-id/flat/CAL_0b1s4QCkFy_55kk_8XWcJPs7wsgVWf8vn4=jXe6V4R7Hxmg@mail.gmail.com

Let me know if there's any further information I can provide.

Best,
--
-- Christophe Pettus  xof@thebuild.com