More fun with my torn page injection test program on 9.4.
24171 2014-05-16 14:00:44.934 PDT:WARNING: 01000: page verification failed, calculated checksum 21100 but expected 3356
24171 2014-05-16 14:00:44.934 PDT:CONTEXT: xlog redo split_l: rel 1663/16384/16405 left 35191, right 35652, next 34666, level 0, firstright 192
24171 2014-05-16 14:00:44.934 PDT:LOCATION: PageIsVerified, bufpage.c:145
24171 2014-05-16 14:00:44.934 PDT:FATAL: XX001: invalid page in block 34666 of relation base/16384/16405
24171 2014-05-16 14:00:44.934 PDT:CONTEXT: xlog redo split_l: rel 1663/16384/16405 left 35191, right 35652, next 34666, level 0, firstright 192
24171 2014-05-16 14:00:44.934 PDT:LOCATION: ReadBuffer_common, bufmgr.c:483
I've seen this twice now, the checksum failure was both times for the block labelled "next" in the redo record. Is this another case where the block needs to be reinitialized upon replay?
Cheers,
Jeff