TODO

weapons

shmem corruption
clog truncation/corruption
random system backend killing
chmod 000 on random files
checksum invalidation
other random page corruption
delayed WAL application
more!

testing

get some testing going
- hard to test failures for failing the right way, but come up with ways to do this safely
- to test fill_log, etc, without hurting host machine will need to setup loopback filesystems
can this be done inside the Pg make check target, or do we need our own custom harness?