nginx: worker process exited with fatal code 2 and cannot be respawn | eventfd() failed.

[Eric A.]

I successfully configured nginx and had everything working fine until a
few days back when i got a message from the systems administrator that
the ruby application was not responding upon investigation, I noticed
when i start nginx its only the master process that runs. I went ahead
to check the error logs and found this:

ERROR LOGS:

2010/11/24 15:48:03 [emerg] 18529#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18530#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18531#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [emerg] 18532#0: eventfd() failed (38: Function not
implemented)
2010/11/24 15:48:03 [alert] 18457#0: worker process 18529 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18530 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18531 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:03 [alert] 18457#0: worker process 18532 exited with
fatal code 2 and can not be respawn
2010/11/24 15:48:07 [crit] 18457#0: the changing binary signal is
ignored: you should shutdown or terminate before either old or new
binary's process
2010/11/24 15:48:07 [crit] 17142#0: the changing binary signal is
ignored: you should shutdown or terminate before either old or new
binary's process


Please note that i used yum to install nginx and it is running on a
CentOS.   It was running perfectly. I have researched into the problem
but most solutions suggest that i recompile the nginx
"--without-file-aio" option which does not help me.
Can someone please direct me in the right path as to the best solution
to this problem, and what might be the possible cause. Thanks!

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