I/O manager: relying solely upon kqueue is not a safe way to go

[Kazu Yamamoto ( 山本和彦 )]

Hi,

> I started to look into fixing this issue, but HEAD no longer
> compiles for me.  Here is the build error I get (on os x 10.8.2): 

The same problem happens on my Mac since yesterday.

Watching this compiling the file by "dtruss" changes its
behavior. That is, compiling the file finishes. But typing "make"
results in the same problem on another file.

--Kazu