Lock-up with CPU busy at r217145; seems OK now at r217189

[Andriy Gapon]

on 09/01/2011 20:36 Michael Butler said the following:
> automoc4 spawns a child during a KDE-4 build which
> turns into a zombie but is never seen to return and the build stalls -
> weird :-(

I believe that this one particular issue should be fixed by r217253.
The problem resolved by the commit resulted in some signals being lost
sometimes, in particular SIGCHLD.

-- 
Andriy Gapon