I'm seeing another uninitialized memory problem in bitcoind using valgrind:
tm@tm-VirtualBox:~/bitcoind/bitcoin/src$ valgrind ./bitcoind
==2337== Memcheck, a memory error detector
==2337== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==2337== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==2337== Command: ./bitcoind
==2337==
==2337== Conditional jump or move depends on uninitialised value(s)
==2337== at 0x319176: CWallet::LoadKeyMetadata(CPubKey const&, CKeyMetadata const&) (wallet.cpp:110)
==2337== by 0x33645A: ReadKeyValue(CWallet*, CDataStream&, CDataStream&, CWalletScanState&, std::string&, std::string&) (walletdb.cpp:509)
==2337== by 0x3374F0: CWalletDB::LoadWallet(CWallet*) (walletdb.cpp:623)
==2337== by 0x3218FD: CWallet::LoadWallet(bool&) (wallet.cpp:1485)
==2337== by 0x157F16: AppInit2(boost::thread_group&) (init.cpp:958)
==2337== by 0x140142: AppInit(int, char**) (bitcoind.cpp:143)
==2337== by 0x13649E: main (bitcoind.cpp:180)
==2337==