Date: Tue, 22 Aug 2006 08:07:17 -0400 From: "Jim Skon" <Jim.Skon@mvnu.edu> To: <freebsd-drivers@freebsd.org> Subject: Problem with high bandwidth callouts Message-ID: <44EABB35020000FC00000D46@nzrnet.mvnu.edu>
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Hello, I have been developing a modification to the 802.11 driver to support a version of PCF (polling mode). The AP part of this solution depends on several active callouts to time the operation of the protocol. The problem I am having is that after several hours of stress testing (pushing the system at maximum bandwidth), the system appears to start losing set callouts. The callouts are still active, and past due, but are never called. I have already done similar implementations in the netbsd and linux environments, and have never had such a problem. Note that I am setting callouts (only 3) at a rate in the 100's per second, so a lot is going on. Has anyone ever had such a problem? Thanks! Jim Skon Professor of Computer Science Mount Vernon Nazarene University James Skon, Ph.D. Computer Science Department Chair Professor of Computer Science (740) 392-6868 x 3224 Mount Vernon Nazarene University EMAIL: skon@mvnu.edu www.mvnu.edu
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