For example:
$ darcs help record
(pressing q)
^C^C^C^C^C^C
And CPU load is 100%. It happiens randomly. SIGKILL helps.
Used version 2.2.0 (release) of darcs on debian testing.
This is a duplicate of 1278. The solution is not to use GHC 6.10.1 to compile
darcs. If your darcs was not compiled with GHC 6.10.1, please re-open issue 1278
and leave a message there.