Got a bluescreen in windows while cloning a mercurial repository.
After reboot, I now get this message for almost all hg commands:
c:\\src\\>hg commit
wai
I encountered this problem on Mac OS X 10.7.5 and Mercurial 2.6.2 when trying to push. After upgrading to Mercurial 3.2.1, I got "no changes found" instead of "waiting for lock on repository". I found out that somehow the default path had gotten set to point to the same repository, so it's not too surprising that Mercurial would get confused.