Re: Multiprocessing question.

Eric Marsden <[email protected]> Mon, 16 Oct 2006 20:35:04 +0200

Newsgroups	gmane.lisp.cmucl.general
Message-ID	<[email protected]>

>>>>> "qu" == quasi  <[email protected]> writes:

  qu> Firstly, I am using trivial-sockets to make HTTP connections. We have
  qu> seen that whenever we try to connect to a system which is down, or
  qu> when my interface has gone down, CMUCL goes into continuous GC taking
  qu> up 99% CPU.  This is when MP is initialised.

  this sounds like a bug in the interaction between CMUCL's network
  code and the SERVE-EVENT facility. Probably the file descriptor
  corresponding to the failed network connection has not been marked
  as being inactive, and select() is being called continually.

  Are you able to provide a simple test case, preferably using CMUCL
  builtin functions rather than trivial-socket calls?
  
-- 
Eric Marsden