Quote from: AltPluzF4 on June 06, 2011, 07:30:48 AM

Windows 7 Pro x64, RPC command "getwork" causes the rpc server to lock up, thread uses full CPU usage (25% on Q6600.)
Application has to be terminated via task manager.

OK, finally tracked this and one other 100% cpu bug down.
Other one is fixed in Pull req 304.
This one I traced back to CryptoPP ASM not working when cross compiled from Linux (as this release was) causing 100% CPU or segfault in some cases in sha.cpp X86_SHA256_HashBlocks.
DO NOT UPGRADE IF you depend on the ability to mine from a Win32 host
Ill do some more searching and see if I can figure out which flags are breaking it, or disable CryptoPP ASM for 0.3.23.
This is entirely my fault, sorry about this.