[Dump-announce] Dump/restore 0.4b52 release

[Tim W. <sou...@wo...>]

Hi everyone,

I've pushed 0.4b52 today. This is a minor release that fixes all the 
remaining issues that valgrind reports. There was nothing major, the 
vast majority were memory that wasn't freed before the program exits. A 
few minor memory leaks, one read beyond the end of a buffer (but the 
value read wasn't used) and some uninitialized memory reads where 
structures are written to tape.

I have changed the way the workers communicate while writing to tape. I 
wasn't able to work out why but the previous method of synchronizing the 
workers didn't work reliably under valgrind and regularly lead to 
corrupted tapes where data was written out of order. This change 
shouldn't cause any differences or problems but if you do see problems 
with this release - most likely related to dump locking up and never 
completing - then this change is likely the culprit.

Tim.